First-move advantage in chess
Encyclopedia
The first-move advantage in chess is the inherent advantage of the player (called White
White and Black in chess
In chess, the player who moves first is referred to as "White" and the player who moves second is referred to as "Black". Similarly, the pieces that each conducts are called, respectively, "the white pieces" and "the black pieces". The pieces are often not literally white and black, but some...

) who makes the first move in chess
Chess
Chess is a two-player board game played on a chessboard, a square-checkered board with 64 squares arranged in an eight-by-eight grid. It is one of the world's most popular games, played by millions of people worldwide at home, in clubs, online, by correspondence, and in tournaments.Each player...

. Chess players and theorists
Chess theory
The game of chess is commonly divided into three phases: the opening, middlegame, and endgame. As to each of these phases, especially the opening and endgame, there is a large body of theory as how the game should be played...

 generally agree that White begins the game with some advantage. Statistics
Statistics
Statistics is the study of the collection, organization, analysis, and interpretation of data. It deals with all aspects of this, including the planning of data collection in terms of the design of surveys and experiments....

 compiled since 1851 support this view, showing that White consistently wins slightly more often than Black
White and Black in chess
In chess, the player who moves first is referred to as "White" and the player who moves second is referred to as "Black". Similarly, the pieces that each conducts are called, respectively, "the white pieces" and "the black pieces". The pieces are often not literally white and black, but some...

, usually scoring between 52 and 56 percent. White's winning percentage is about the same for tournament
Tournament
A tournament is a competition involving a relatively large number of competitors, all participating in a sport or game. More specifically, the term may be used in either of two overlapping senses:...

 games between humans and games between computer
Computer
A computer is a programmable machine designed to sequentially and automatically carry out a sequence of arithmetic or logical operations. The particular sequence of operations can be changed readily, allowing the computer to solve more than one kind of problem...

s. However, White's advantage is less significant in rapid games and in games between weaker players.

Chess players and theoreticians
Chess theory
The game of chess is commonly divided into three phases: the opening, middlegame, and endgame. As to each of these phases, especially the opening and endgame, there is a large body of theory as how the game should be played...

 have long debated whether, given perfect play by both sides, the game should end in a win for White, or a draw
Draw (chess)
In chess, a draw is when a game ends in a tie. It is one of the possible outcomes of a game, along with a win for White and a win for Black . Usually, in tournaments a draw is worth a half point to each player, while a win is worth one point to the victor and none to the loser.For the most part,...

. Since at least 1889, when World Champion
World Chess Championship
The World Chess Championship is played to determine the World Champion in the board game chess. Men and women of any age are eligible to contest this title....

 Wilhelm Steinitz
Wilhelm Steinitz
Wilhelm Steinitz was an Austrian and then American chess player and the first undisputed world chess champion from 1886 to 1894. From the 1870s onwards, commentators have debated whether Steinitz was effectively the champion earlier...

 addressed the issue, the overwhelming consensus has been that a perfectly played game would end in a draw. However, a few notable players have argued that White's advantage may be sufficient to force a win: Weaver Adams and Vsevolod Rauzer
Vsevolod Rauzer
Vsevolod Rauzer is probably best known for his extensive chess opening theory. The Richter–Rauzer Variation of the Sicilian Defence , was named in honor of him and the German master Kurt Richter....

 claimed that White is winning after the first move 1.e4, while Hans Berliner
Hans Berliner
Hans Jack Berliner , a Professor of , is a former World Correspondence Chess Champion, from 1965–68. He is a Grandmaster of Correspondence Chess, and an International Master for over-the-board chess. He directed the construction of the chess computer HiTech. Berliner is also a chess writer.-Life...

 argued that 1.d4 may win for White. It is possible that computers will eventually resolve the debate by determining the correct outcome of a perfectly played game of chess, as they have for checkers.

Some players, including World Champions José Raúl Capablanca
José Raúl Capablanca
José Raúl Capablanca y Graupera was a Cuban chess player who was world chess champion from 1921 to 1927. One of the greatest players of all time, he was renowned for his exceptional endgame skill and speed of play...

, Emanuel Lasker
Emanuel Lasker
Emanuel Lasker was a German chess player, mathematician, and philosopher who was World Chess Champion for 27 years...

, and Bobby Fischer
Bobby Fischer
Robert James "Bobby" Fischer was an American chess Grandmaster and the 11th World Chess Champion. He is widely considered one of the greatest chess players of all time. Fischer was also a best-selling chess author...

, have expressed fears of a "draw death" as chess becomes more deeply analyzed. To alleviate this danger, Capablanca and Fischer both proposed chess variant
Chess variant
A chess variant is a game related to, derived from or inspired by chess. The difference from chess might include one or more of the following:...

s to renew interest in the game, while Lasker suggested changing how draws and stalemate
Stalemate
Stalemate is a situation in chess where the player whose turn it is to move is not in check but has no legal moves. A stalemate ends the game in a draw. Stalemate is covered in the rules of chess....

 are scored.

Since 1988, chess theorists have challenged previously well-established views about White's advantage. Grandmaster (GM) András Adorján
Andras Adorjan
András Adorján is a Hungarian author and Grandmaster of chess , born in Budapest. He adopted his mother's surname Adorján in 1968....

 wrote a series of books on the theme that "Black is OK!", arguing that the general perception that White has an advantage is founded more in psychology
Psychology
Psychology is the study of the mind and behavior. Its immediate goal is to understand individuals and groups by both establishing general principles and researching specific cases. For many, the ultimate goal of psychology is to benefit society...

 than reality. GM Mihai Șubă
Mihai Suba
Mihai Șubă is a Romanian chess Grandmaster. FIDE awarded him the International Master title in 1975 and the International Grandmaster title in 1978. He won the Romanian Chess Championship in 1980, 1981 and 1985. He first came to wide attention in 1982 when he finished second, after Zoltán Ribli,...

 and others contend that sometimes White's initiative disappears for no apparent reason as a game progresses. The prevalent style of play for Black today is to seek dynamic, unbalanced positions with active counterplay, rather than merely trying to equalize.

Modern writers also argue that Black has certain countervailing advantages. The consensus that White should try to win can be a psychological burden for the white player, who sometimes loses by trying too hard to win. Moreover, according to game theory
Game theory
Game theory is a mathematical method for analyzing calculated circumstances, such as in games, where a person’s success is based upon the choices of others...

, playing second may be advantageous because White has to reveal his hand first. Some openings are thus considered good for Black but less so for White, because White's extra tempo
Tempo (chess)
In chess, tempo refers to a "turn" or single move. When a player achieves a desired result in one fewer move, he "gains a tempo" and conversely when he takes one more move than necessary he "loses a tempo"...

 allows Black to adjust in advance to the opponent's plans. Some symmetrical openings (i.e. those where both players make the same moves) can also lead to situations where moving first is a disadvantage, either for psychological or objective reasons.

Winning percentages

White
wins
DrawnBlack
wins
Total score
for White
Tournaments
1851–1878
45.52% 14.07% 40.41% 52.55%
Tournaments
1881–1914
36.89% 31.76% 31.35% 52.77%
Tournaments
1919–1932
36.98% 36.98% 26.04% 55.47%
Tournaments
overall 1851–1932
38.12% 30.56% 31.31% 53.40%
New in Chess
database 2000
N/A N/A N/A 54.8%
ChessGames.com
database 2008
36.81% 36.50% 26.69% 55.06%
World Blitz Chess
Championship 2009
38.96% 26.41% 34.63% 52.16%
CEGT chess
engines results
(40/120) 2009
34.7% 41.3% 24.0% 55.4%

In 1946, W.F. Streeter examined the results of 5,598 games played in 45 international chess tournaments between 1851 and 1932. Streeter found that overall White scored 53.4% (W: 38.12; D: 30.56; L: 31.31). White scored 52.55% in 1851–78 (W:45.52; D: 14.07; L: 40.41), 52.77% in 1881–1914 (W: 36.89; D: 31.76; L: 31.35), and 55.47% in 1919–32 (W: 36.98; D: 36.98; L: 26.04). Streeter concluded, "It thus appears that it is becoming increasingly difficult to win with Black, but somewhat easier to draw."

Two decades later, statistician Arthur M. Stevens concluded in The Blue Book of Charts to Winning Chess, based on a survey of 56,972 master games that he completed in 1967, that White scores 59.1%. However, Stevens assembled his games from those that had been published in chess magazines, rather than complete collections of all the games played in particular events.

More recent sources indicate that White scores approximately 54 to 56 percent. In 2005, GM Jonathan Rowson
Jonathan Rowson
Jonathan Rowson is Scotland's third chess Grandmaster, after Paul Motwani and Colin McNab, and has played first board at recent Chess Olympiads. He is also a chess author.-Career:...

 wrote that "the conventional wisdom is that White begins the game with a small advantage and, holding all other factors constant, scores approximately 56% to Black's 44%". International Master (IM) John Watson
John L. Watson
John Leonard Watson is a chess International Master and author.Watson was born in Milwaukee and grew up in Omaha, Nebraska. He was educated at Brownell-Talbot, Harvard, and the University of California at San Diego, where he took his degree in engineering...

 wrote in 1998 that White had scored 56% for most of the 20th century, but that this figure had recently slipped to 55%. The website ChessGames.com
Chessgames.com
ChessGames.com is a large chess community on the Internet, with over 156,000 members. The site maintains a large database of historical chess games where every game has a distinct message board for comments and analysis. Basic membership is free and the site is open to players at all levels of...

 holds regularly updated statistics on its games database
Database
A database is an organized collection of data for one or more purposes, usually in digital form. The data are typically organized to model relevant aspects of reality , in a way that supports processes requiring this information...

. On March 17, 2008 the database contained
460,703 games. White won 36.81%, 36.50% were drawn, and Black won 26.69%, resulting in a total White winning percentage of 55.06%.

New In Chess
New In Chess
New In Chess is a chess magazine that appears eight times a year with chief editors International Grandmaster Jan Timman and Dirk Jan Ten Geuzendam. It contains notes by top players and chess prodigies on their own games...

 observed in its 2000 Yearbook that of the 731,740 games in its database, White scored 54.8% overall; with the two most popular opening moves, White scored 54.1% in 349,855 games beginning 1.e4, and 56.1% in 296,200 games beginning 1.d4. The main reason that 1.e4 was less effective than 1.d4 was the Sicilian Defence
Sicilian Defence
The Sicilian Defence is a chess opening that begins with the moves:The Sicilian is the most popular and best-scoring response to White's first move 1.e4...

 (1.e4 c5), which gave White only a 52.3% score in 145,996 games.

Statistician
Statistician
A statistician is someone who works with theoretical or applied statistics. The profession exists in both the private and public sectors. The core of that work is to measure, interpret, and describe the world and human activity patterns within it...

 Jeff Sonas
Jeff Sonas
Jeff Sonas is known as a statistical chess analyst who invented the Chessmetrics system for rating chess players, which is intended as an improvement on the Elo rating system. He is the founder and proprietor of the Chessmetrics.com website, which gives Sonas' calculations of the ratings of current...

, in examining data from 266,000 games played between 1994 and 2001, concluded that White scored 54.1767% plus 0.001164 times White's Elo rating advantage, treating White's rating advantage as +390 if it is better than +390, or −460 if it is worse than −460. He found that White's advantage is equivalent to 35 rating points, i.e. if White has a rating 35 points below Black's, each player will have an expected score of 50%. Sonas also found that White's advantage is smaller (53%) in rapid games than in games at a slower ("classical") time control
Time control
A time control is a mechanism in the tournament play of almost all two-player board games so that each round of the match can finish in a timely way and the tournament can proceed. Time controls are typically enforced by means of a game clock...

. In the 462 games played at the 2009 World Blitz Chess Championship, White scored only 52.16% (W38.96 D26.41 L 34.63).

Other writers conclude that there is a positive correlation between the players' ratings and White's score. According to GM Evgeny Sveshnikov
Evgeny Sveshnikov
Evgeny Ellinovich Sveshnikov is a Latvian, former Soviet International Grandmaster of chess, and a chess writer.-The player:...

, statistics show that White has no advantage over Black in games between beginners, but "if the players are stronger, White has the lead". An analysis of the results of games in ChessBase
ChessBase
ChessBase GmbH is a German company that markets chess software, maintains a chess news site, and operates a server for online chess. Set up in 1998, it maintains and sells massive databases, containing most historic games, that permit analysis that had not been possible prior to computing...

's Mega 2003 database between players with similar Elo ratings, commissioned by GM András Adorján
Andras Adorjan
András Adorján is a Hungarian author and Grandmaster of chess , born in Budapest. He adopted his mother's surname Adorján in 1968....

, showed that as the players' ratings went up, the percentage of draws increased, the proportion of decisive games that White won increased, and White's overall winning percentage increased. For example, taking the highest and lowest of Adorján's rating categories of 1669 games played by the highest-rated players (Elo ratings 2700 and above), White scored 55.7% overall (W26.5 D58.4 L15.2), whereas of 34,924 games played by the lowest-rated players (Elo ratings below 2100), White scored 53.1% overall (W37.0 D32.1 L30.8). Adorján also analyzed the results of games played at the very highest level: World Championship matches
World Chess Championship
The World Chess Championship is played to determine the World Champion in the board game chess. Men and women of any age are eligible to contest this title....

. Of 755 games played in 34 matches between 1886 and 1990, White won 234 (31.0%), drew 397 (52.6%), and lost 124 (16.4%), for a total White winning percentage of 57.3%. In the last five matches in Adorjan's survey, all between Anatoly Karpov
Anatoly Karpov
Anatoly Yevgenyevich Karpov is a Russian chess grandmaster and former World Champion. He was the official world champion from 1975 to 1985 when he was defeated by Garry Kasparov. He played three matches against Kasparov for the title from 1986 to 1990, before becoming FIDE World Champion once...

 and Garry Kasparov
Garry Kasparov
Garry Kimovich Kasparov is a Russian chess grandmaster, a former World Chess Champion, writer, political activist, and one of the greatest chess players of all time....

, White won 31 (25.8%), drew 80 (66.7%), and lost 9 (7.5%), for a total White winning percentage of 59.2%.

Chess Engines Grand Tournament (CEGT) tests computer chess engines by playing them against each other, with time controls of forty moves in one hundred and twenty minutes per player (40/120), and also 40/20 and 40/4, and uses the results of those games to compile a rating list for each time control. At the slowest time control (40/120), White has scored 55.4% (W34.7 D41.3 L24.0) in games played among 38 of the strongest chess engines (as of May 27, 2009). At 40/20, White has scored 54.6% (W37.0 D35.2 L27.8) in games played among 284 engines (as of May 24, 2009). At the fastest time control (40/4), White has scored 54.8% (W39.6 D30.5 L30.0), in games played among 128 programs (as of May 28, 2009).

Drawn with best play

Joseph Bertin
Joseph Bertin
Captain Joseph Bertin was one of the first authors to write about the game of chess. David Hooper and Kenneth Whyld in The Oxford Companion to Chess call his book The Noble Game of Chess "the first worthwhile chess book in the English language". B...

 wrote in his 1735 textbook The Noble Game of Chess, "He that plays first, is understood to have the attack." This is consistent with the traditional view that White, by virtue of the first move, begins with the initiative and should try to extend it into the middlegame, while Black should strive to neutralize White's initiative and attain equality. Because White begins with the initiative, a minor mistake by White generally leads only to loss of the initiative, while a similar mistake by Black may have more serious consequences. Thus, Sveshnikov wrote in 1994, "Black players cannot afford to make even the slightest mistake ... from a theoretical point of view, the tasks of White and Black in chess are different: White has to strive for a win, Black—for a draw!"

Chess theorists have long debated how enduring White's initiative is and whether, if both sides play perfectly, the game should end in a win for White or a draw. George Walker
George Walker (chess player)
George Walker was an English chess player and author of The Celebrated Analysis of A D Philidor , The Art of Chess-Play: A New Treatise on the Game of Chess , A Selection of Games at Chess played by Philidor , Chess Made Easy , and Chess Studies .In 1839 visited...

 wrote in 1846 that, "The first move is an advantage, ... but if properly answered, the first move is of little worth". Steinitz, the first World Champion, who is widely considered the father of modern chess, wrote in 1889, "It is now conceded by all experts that by proper play on both sides the legitimate issue of a game ought to be a draw." Lasker and Capablanca, the second and third World Champions, agreed. Reuben Fine
Reuben Fine
Reuben Fine was one of the strongest chess players in the world from the early 1930s through the 1940s, an International Grandmaster, psychologist, university professor, and author of many books on both chess and psychology.Fine won five medals in three chess Olympiads. Fine won the U.S...

, one of the world's leading players from 1936 to 1951, explained that White's opening advantage is too intangible to be sufficient for a win without an error by Black.

The view that a game of chess should end in a draw given best play prevails. Even if it cannot be proved, this assumption is considered "safe" by Rowson and "logical" by Adorján. Watson agrees that "the proper result of a perfectly played chess game ... is a draw. ... Of course, I can't prove this, but I doubt that you can find a single strong player who would disagree. ... I remember Kasparov, after a last-round draw, explaining to the waiting reporters: 'Well, chess is a draw.' " World Champion Bobby Fischer thought that was almost definitely so.

Lasker and Capablanca both worried that chess would suffer a "draw death" as top-level players drew more and more of their games. More recently, Fischer agreed, saying that the game has become played out. All three advocated changing the rules of chess
Rules of chess
The rules of chess are rules governing the play of the game of chess. While the exact origins of chess are unclear, modern rules first took form during the Middle Ages. The rules continued to be slightly modified until the early 19th century, when they reached essentially their current form. The...

 to minimize the number of drawn games. Lasker suggested scoring less than half a point for a draw, and more than half a point for stalemating the opponent's king
King (chess)
In chess, the king is the most important piece. The object of the game is to trap the opponent's king so that its escape is not possible . If a player's king is threatened with capture, it is said to be in check, and the player must remove the threat of capture on the next move. If this cannot be...

. Capablanca in the 1920s proposed Capablanca chess
Capablanca chess
Capablanca chess is a chess variant invented in the 1920s by former World Chess Champion José Raúl Capablanca. It incorporates two new pieces and is played on a 10×8 board. Capablanca proposed the variant while World Champion, and not as a "sour grapes" rationalization after losing his title as...

, a chess variant played on a larger board and with additional pieces. Fischer advocated Fischer Random Chess, another chess variant, in which the initial position of the pieces is determined at random.

Today some of the sharpest opening variations have been analyzed so deeply that they are often used as drawing weapons. For example, at the highest levels, Black often uses the Marshall Attack in the Ruy Lopez
Ruy Lopez
The Ruy Lopez, also called the Spanish Opening or Spanish Game, is a chess opening characterised by the moves:-History:The opening is named after the 16th century Spanish priest Ruy López de Segura, who made a systematic study of this and other openings in the 150-page book on chess Libro del...

, a line where Black sacrifices a pawn for strong attacking chances, to obtain an endgame where Black is still a pawn down but is able to draw with correct play.
The perfect game?



In 2007, GMs Kiril Georgiev
Kiril Georgiev
Kiril Dimitrov Georgiev is a Bulgarian chess master and three times the national champion. He should not be confused with fellow Bulgarian chess player Krum Georgiev....

 and Atanas Kolev
Atanas Kolev
Atanas Kolev is a Bulgarian Grandmaster of chess. As of July 2009, his FIDE rating is 2569. His highest rating was 2582 in July 2000-January 2001. Kolev is the coach of the Bulgarian women's national chess team...

 asserted that much the same was true of the so-called Poisoned Pawn Variation
Poisoned Pawn Variation
The Poisoned Pawn Variation is any of several chess opening variations where a pawn is said to be "poisoned" because its capture can result in positional problems or material loss for the captor. The best known of these, called the Poisoned Pawn Variation, is a line of the Sicilian Defense, Najdorf...

 of the Najdorf Sicilian, which arises after 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Qb6!? This has long been considered one of the sharpest and most problematic, or even foolhardy, opening lines. The game usually continues 8.Qd2 Qxb2 9.Rb1 Qa3. Georgiev and Kolev stated that 6.Bg5 is seldom seen at the highest level because the main line of this variation leads, with best play, to a draw by perpetual check
Perpetual check
In the game of chess, perpetual check is a situation in which one player can force a draw by an unending series of checks. Such a situation typically arises when the player who is checking cannot deliver checkmate; while failing to continue the series of checks gives the opponent at least a chance...

. They wrote that the following game "will probably remain the last word of theory":

Francisco Vallejo Pons
Francisco Vallejo Pons
Francisco Vallejo Pons is a chess Grandmaster from Spain. He was a chess prodigy, achieving the grandmaster title at the age of 16 years and 9 months, which makes him the 20th youngest player to ever become a grandmaster...

–Kasparov, Moscow 2004: 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Qb6 8. Qd2 Qxb2 9. Rb1 Qa3 10. f5 Nc6 11. fxe6 fxe6 12. Nxc6 bxc6 13. e5 dxe5 14. Bxf6 gxf6 15. Ne4 Qxa2 16. Rd1 Be7 17. Be2 0-0 18. 0-0 Ra7 19. Rf3 Kh8 20. Rg3 Rd7 21. Qh6 Rf7 22. Qh5 Rxd1+ 23. Bxd1 Qa5 24. Kf1 Qd8 25. Qxf7 Qxd1+ 26. Kf2 Qxc2+ 27. Kf3 Qd1+ 28. Kf2 Qc2+ 29. Ke3 Bc5+ 30. Nxc5 Qxc5+ 31. Kd2 Qf2+ 32. Kc3 Qd4+ 33. Kc2 Qf2+ 34. Kc3 1/2–1/2
Draw (chess)
In chess, a draw is when a game ends in a tie. It is one of the possible outcomes of a game, along with a win for White and a win for Black . Usually, in tournaments a draw is worth a half point to each player, while a win is worth one point to the victor and none to the loser.For the most part,...

 (After 34...Qd4+, White cannot escape the checks.)

However, Georgiev and Kolev's pessimistic assessment of 6.Bg5 has since been called into question, as White has succeeded with 10.e5 (another critical line) in several recent high-level games.

White wins with 1.e4

Although it is very much a minority view, three prominent twentieth-century master
Chess master
A chess master is a chess player of such skill that he/she can usually beat chess experts, who themselves typically prevail against most amateurs. Among chess players, the term is often abbreviated to master, the meaning being clear from context....

s claimed that White's advantage should or may be decisive with best play. Weaver Adams, then one of the leading American masters, was the best-known proponent of this view, which he introduced in his 1939 book White to Play and Win, and continued to expound in later books and articles until shortly before his death in 1963. Adams opined that 1.e4 was White's strongest move, and that if both sides played the best moves thereafter, "White ought to win."

Adams' claim was widely ridiculed. GM Larry Evans
Larry Evans
For the football player of the same name, see Larry Evans .Larry Melvyn Evans was an American chess grandmaster, author, and journalist. He won or shared the U.S. Chess Championship five times and the U.S. Open Chess Championship four times...

 wrote in 1962 that "Mr. Adams and his cronies may be linked to the radical right wing
Right-wing politics
In politics, Right, right-wing and rightist generally refer to support for a hierarchical society justified on the basis of an appeal to natural law or tradition. To varying degrees, the Right rejects the egalitarian objectives of left-wing politics, claiming that the imposition of equality is...

 of chess. ... Weaver is not content with such halfway measures as equality. All or nothing—right-wing logic
Logic
In philosophy, Logic is the formal systematic study of the principles of valid inference and correct reasoning. Logic is used in most intellectual activities, but is studied primarily in the disciplines of philosophy, mathematics, semantics, and computer science...

, true to form."

Adams did not succeed in demonstrating the validity of his theory in tournament and match practice. The year after his book was published, at the finals of the 1940 U.S. Open tournament
U.S. Open Chess Championship
The U.S. Open Championship is an open national chess championship that has been held in the United States annually since 1900.-History:Through 1938, the tournaments were organized by the Western Chess Association and its successor, the American Chess Federation .The United States Chess Federation ...

, he scored only one draw in his four games as White, but won all four of his games as Black. Adams also lost a match to IM I.A. Horowitz, who took the Black pieces in every game.

According to Sveshnikov, Vsevolod Rauzer
Vsevolod Rauzer
Vsevolod Rauzer is probably best known for his extensive chess opening theory. The Richter–Rauzer Variation of the Sicilian Defence , was named in honor of him and the German master Kurt Richter....

, a leading Soviet player and theoretician during the 1930s, likewise "claimed in the [1930s]: '1.e4—and White wins!' and he managed to prove it quite often".

White wins with 1.d4

More recently, IM Hans Berliner
Hans Berliner
Hans Jack Berliner , a Professor of , is a former World Correspondence Chess Champion, from 1965–68. He is a Grandmaster of Correspondence Chess, and an International Master for over-the-board chess. He directed the construction of the chess computer HiTech. Berliner is also a chess writer.-Life...

, a former World Champion of Correspondence Chess
Correspondence chess
Correspondence chess is chess played by various forms of long-distance correspondence, usually through a correspondence chess server, through email or by the postal system; less common methods which have been employed include fax and homing pigeon...

, claimed in his 1999 book The System that 1.d4 gives White a large, and possibly decisive, advantage. Berliner asserted that with best play White wins against the Grünfeld Defense, the Modern Benoni, the Benko Gambit
Benko Gambit
The Benko Gambit is a chess opening characterised by the move 3...b5 in the Benoni Defense arising after:- Origin and predecessors :The idea of sacrificing a pawn with ...b5 and ...a6 is quite old. Karel Opočenský applied the idea against, among others, Gideon Ståhlberg at Poděbrady 1936, Paul...

 and other (unnamed) "major defences", and achieves at least a large advantage in many lines of the Queen's Gambit Declined
Queen's Gambit Declined
The Queen's Gambit Declined is a chess opening in which Black declines a pawn offered by White in the Queen's Gambit:This is known as the Orthodox Line of the Queen's Gambit Declined...

. However, he allowed that, "It is possible that the rules of chess are such that only some number of plausible-appearing defences to 1.d4 can be refuted." Berliner wrote that Adams' "theories, though looked upon with scorn by most top chess players, made an immediate and lasting impression on me. Weaver W. Adams was the first person I met who actually had theories about how chess should be played."

Berliner's thesis, like Adams', has been sharply criticized. IM Jeremy Silman
Jeremy Silman
Jeremy Silman is an American International Master of chess. He has won the US Open, the American Open, and the National Open, and was the coach of the US junior national chess team...

 wrote, "the sheer insanity of [Berliner's] claims made me laugh out loud on several occasions ... . My gripe is his lack of perspective, his iron conviction concerning his own deep understanding of chess, and the ease with which he dismisses the ideas and assessments of players who dwarf him ... in all things related to chess."

Modern perspectives

As explained below, chess theorists in recent decades have continued to debate the size and nature of White's advantage, if any. Apart from Berliner, they have rejected the idea that White has a forced win from the opening position. Many also reject the traditional paradigm
Paradigm
The word paradigm has been used in science to describe distinct concepts. It comes from Greek "παράδειγμα" , "pattern, example, sample" from the verb "παραδείκνυμι" , "exhibit, represent, expose" and that from "παρά" , "beside, beyond" + "δείκνυμι" , "to show, to point out".The original Greek...

 that Black's objective should be to neutralize White's initiative and obtain equality.

White has an enduring advantage

In 2004, GM Larry Kaufman
Larry Kaufman
Lawrence C. "Larry" Kaufman is a Grandmaster of chess. He is also a mathematics professor and currently lives in Potomac, Maryland. In 2008, as an International Master, Kaufman won the World Senior Championship which automatically earned him the Grandmaster title.A long time researcher in...

 expressed a more nuanced view than Adams and Berliner, arguing that the initiative stemming from the first move can always be transformed into some sort of enduring advantage, albeit not necessarily a decisive one. Kaufman writes, "I don't believe that White has a forced win in Chess. I do however believe that with either 1.e4 or 1.d4, White should be able to obtain some sort of advantage that persists into the endgame. If chess were scored like boxing
Boxing
Boxing, also called pugilism, is a combat sport in which two people fight each other using their fists. Boxing is supervised by a referee over a series of between one to three minute intervals called rounds...

, with drawn games awarded by some point system to the player (if any) who came 'closer' to winning, then I believe White would indeed have a forced win in theory."

Black is OK!

Starting in 1988, Adorján has argued in a series of books and magazine articles that "Black is OK!" Alone amongst modern writers, Adorján claims that White starts the game with essentially no advantage. He writes, "In my opinion, the only obvious advantage for White is that if he or she plays for a draw, and does so well, then Black can hardly avoid this without taking obvious risks." Adorján goes so far as to claim that, "The tale of White's advantage is a delusion, belief in it is based on mass psychosis." Rowson writes that Adorján's "contention is one of the most important chess ideas of the last two decades ... because it has shaken our assumption that White begins the game with some advantage, and revealed its ideological nature". However, Rowson rejects Adorján's claim that White has essentially no advantage, reasoning that White is better' and 'Black is OK' need not be mutually exclusive claims".

In one of Adorján's books, GM Lajos Portisch
Lajos Portisch
Lajos Portisch is a Hungarian chess Grandmaster, whose positional style earned him the nickname, the "Hungarian Botvinnik"...

 opines that "at least two-thirds of all 'tested' openings give White an apparent advantage." According to Portisch, for Black, "The root of the problem is that very few people know which are the openings where Black is really OK. Those who find these lines have nothing to fear, as Black is indeed OK, but only in those variations!" Rowson considers this an important point, noting that "1.d4 players struggle to get anywhere against main-line Slavs
Slav Defense
The Slav Defense is a chess opening that begins with the moves:The Slav is one of the primary defenses to the Queen's Gambit. Although it was analyzed as early as 1590, it was not until the 1920s that it started to be explored extensively...

 and 1.e4 players find the Najdorf
Sicilian Defence, Najdorf Variation
The Najdorf Variation of the Sicilian Defence is one of the most respected and deeply studied of all chess openings. Modern Chess Openings calls it the Cadillac or Rolls Royce of chess openings. The opening is named after the Polish-Argentinian Grandmaster Miguel Najdorf...

 and Sveshnikov Sicilians particularly tough."

Dynamism

Modern writers often think of Black's role in more dynamic terms than merely trying to equalize. Rowson writes that "the idea of Black trying to 'equalize' is questionable. I think it has limited application to a few openings, rather than being an opening prescription for Black in general." Evans wrote that after one of his games against Fischer, "Fischer confided his 'secret' to me: unlike other masters, he sought to win with the Black pieces from the start. The revelation that Black has dynamic chances and need not be satisfied with mere equality was the turning point in his career, he said." Likewise, Watson surmised that Kasparov, when playing Black, bypasses the question of whether White has an opening advantage "by thinking in terms of the concrete nature of the dynamic imbalance on the board, and seeking to seize the initiative whenever possible". Watson observes that "energetic opening play by Black may ... lead to a position so complex and unclear that to speak of equality is meaningless. Sometimes we say 'dynamically balanced' instead of 'equal' to express the view that either player is as likely as the other to emerge from complications with an advantage. This style of opening play has become prevalent in modern chess, with World Champions Fischer and Kasparov as its most visible practitioners."

Modern writers also question the idea that White has an enduring advantage. Suba, in his influential 1991 book Dynamic Chess Strategy, rejects the notion that the initiative can always be transformed into an enduring advantage. He contends that sometimes the player with the initiative loses it with no logical explanation, and that, "Sometimes you must lose it, just like that. If you try to cling to it, by forcing the issue, your dynamic potential will become exhausted and you won't be able to face a vigorous counter-attack." Rowson and Watson concur. Watson also observes, "Because of the presumption of White being better, the juncture of the game at which Black frees his game or neutralizes White's plans has often been automatically assumed to give him equality, even though in dynamic openings, the exhaustion of White's initiative very often means that Black has seized it with advantage."

White's advantages

According to Rowson, White's first advantage is that, "The advantage of the first move has some similarities with the serve
Serve (tennis)
A serve in tennis is a shot to start a point. A player begins a serve by tossing the ball into the air and hitting it into the diagonally opposite backside box without being stopped by the net. The ball can only touch the net on a return and will be considered good if it falls on the opposite side...

 in tennis
Tennis
Tennis is a sport usually played between two players or between two teams of two players each . Each player uses a racket that is strung to strike a hollow rubber ball covered with felt over a net into the opponent's court. Tennis is an Olympic sport and is played at all levels of society at all...

 in that White can score an 'ace
Ace (tennis)
In tennis, an ace is a legal serve that is not touched by the receiver, winning the point.In professional tennis, aces are generally seen on a player's first serve, where the server can strike the ball with maximum force and take more chances with ball placement .The most common placement of an ace...

' (for instance with a powerful opening novelty), he has more control over the pace and direction of the game, and he has a 'second serve' in that when things go wrong his position is not usually losing." Second, White begins the game with some initiative, although Rowson regards this as a psychological rather than a positional advantage, "and whether it leads to a positional advantage depends on the relative skill of the players." Third, some players are able to use the initiative to "play a kind of powerful 'serve and volley
Serve and volley
Serve and volley is a style of play in tennis where the player serving moves quickly towards the net after hitting a serve. The server then attempts to hit a volley , as opposed to the baseline style, where the server would stay back following the serve and attempt to hit a groundstroke Serve and...

' chess in which Black is flattened with a mixture of deep preparation and attacking prowess." Fourth, "If White wants to draw, it is often not so easy for Black to prevent this. This advantage is particularly acute in cases where there is a possible threefold repetition
Threefold repetition
In chess and some other abstract strategy games, the threefold repetition rule states that a player can claim a draw if the same position occurs three times, or will occur after their next move, with the same player to move. The repeated positions need not occur in succession...

, because White can begin the repetition without committing to a draw and Black has to decide whether to deviate before he knows whether White is bluffing."

Rowson cites as an example of the last phenomenon the well-regarded Zaitsev Variation of the Ruy Lopez
Ruy Lopez
The Ruy Lopez, also called the Spanish Opening or Spanish Game, is a chess opening characterised by the moves:-History:The opening is named after the 16th century Spanish priest Ruy López de Segura, who made a systematic study of this and other openings in the 150-page book on chess Libro del...

. After 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.0-0 Be7 6.Re1 b5 7.Bb3 0-0 8.c3 d6 9.h3 Bb7 10.d4 Re8 (initiating the Zaitsev Variation), White can repeat moves once with 11.Ng5 Rf8 12.Nf3. This puts Black in an awkward situation, since he must either (a) insist on the Zaitsev with 12...Re8, which allows White to choose whether to draw by threefold repetition with 13.Ng5 Rf8 14.Nf3, or play on with a different move, or (b) play a different (and possibly inferior) variation by playing something other than 12...Re8.

Black's advantages

Rowson argues that Black also has several advantages. First, "White's alleged advantage is also a kind of obligation to play for a win, and Black can often use this to his advantage." Second, "White's 'extra move' can be a burden, and sometimes White finds himself in a mild form of zugzwang
Zugzwang
Zugzwang is a term usually used in chess which also applies to various other games. The term finds its formal definition in combinatorial game theory, and it describes a situation where one player is put at a disadvantage because he has to make a move when he would prefer to pass and make no move...

('Zugzwang Lite')." Third, although White begins the game with the initiative, if "Black retains a flexible position with good reactive possibilities, this initiative can be absorbed and often passes over to Black." Fourth, "The fact that White moves before Black often gives Black useful information". Suba likewise argues that White's advantage is actually less than a move, since White must tip his hand first, allowing Black to react to White's plans. Suba writes, "In terms of the mathematical games theory
Game theory
Game theory is a mathematical method for analyzing calculated circumstances, such as in games, where a person’s success is based upon the choices of others...

, chess is a game of complete information
Complete information
Complete information is a term used in economics and game theory to describe an economic situation or game in which knowledge about other market participants or players is available to all participants. Every player knows the payoffs and strategies available to other players.Complete information...

, and Black's information is always greater—by one move!"

Rowson also notes that Black's chances increase markedly by playing good openings, which tend to be those with flexibility and latent potential, "rather than those that give White fixed targets or that try to take the initiative prematurely." He also emphasizes that "White has 'the initiative', not 'the advantage'. Success with Black depends on seeing beyond the initiative and thinking of positions in terms of 'potential'." These ideas are exemplified by the Hedgehog, a dynamic modern system against the English Opening
English Opening
In chess, the English Opening is the opening where White begins:A flank opening, it is the fourth most popular and, according to various databases, anywhere from one of the two most successful to the fourth most successful of White's twenty possible first moves. White begins the fight for the...

 that can arise from various move orders. A typical position arises after 1.c4 c5 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.0-0 e6 6.Nc3 Be7 7.d4 cxd4 8.Qxd4 d6 9.e4 a6. White has a spatial advantage, while Black often maneuvers his pieces on the last two ranks of the board, but White "has to keep a constant eye on the possible liberating pawn thrusts ...b5 and ...d5." Watson remarks, "Black's goal is to remain elastic and flexible, with many options for his pieces, whereas White can become paralyzed at some point by the need to protect against various dynamic pawn breaks." He also observes that, "White tends to be as much tied up by Black's latent activity as Black himself is tied up by White's space advantage." Moreover, attempts by White to overrun Black's position often rebound disastrously. An example of this is the following grandmaster game:
Polugaevsky
Lev Polugaevsky
Lev Abramovich Polugaevsky was an International Grandmaster of chess and frequent contender for the world chess championship, although he never achieved that title...

Ftáčnik
Lubomir Ftácnik
Ľubomír Ftáčnik is a Slovak chess player and a former European Junior Champion.He became European Junior Champion in 1976/77 and was awarded the International Master title shortly after...





Lev Polugaevsky
Lev Polugaevsky
Lev Abramovich Polugaevsky was an International Grandmaster of chess and frequent contender for the world chess championship, although he never achieved that title...

Ľubomír Ftáčnik
Lubomir Ftácnik
Ľubomír Ftáčnik is a Slovak chess player and a former European Junior Champion.He became European Junior Champion in 1976/77 and was awarded the International Master title shortly after...

, Lucerne
Lucerne
Lucerne is a city in north-central Switzerland, in the German-speaking portion of that country. Lucerne is the capital of the Canton of Lucerne and the capital of the district of the same name. With a population of about 76,200 people, Lucerne is the most populous city in Central Switzerland, and...

 Olympiad
Chess Olympiad
The Chess Olympiad is a biennial chess tournament in which teams from all over the world compete against each other. The event is organised by FIDE, which selects the host nation.-Birth of the Olympiad:The first Olympiad was unofficial...

 1982: 1. Nf3 Nf6 2. c4 c5 3. Nc3 e6 4. g3 b6 5. Bg2 Bb7 6. 0-0 Be7 7. d4 cxd4 8. Qxd4 d6 9. Rd1 a6 10. b3 Nbd7 11. e4 Qb8 12. Bb2 0-0 Suba wrote of a similar Hedgehog position, "White's position looks ideal. That's the naked truth about it, but the 'ideal' has by definition one drawback—it cannot be improved." 13. Nd2 Rd8 14. a4 Qc7 15. Qe3 Rac8 16. Qe2 Ne5 17. h3? According to Ftáčnik, 17.f4 Neg4 18.Rf1 is better. h5! 18. f4 Ng6 19. Nf3 Now Black breaks open the position in typical Hedgehog fashion. d5! 20. cxd5?! Ftáčnik considers 20.e5 or 20.exd5 preferable. h4! 21. Nxh4 Nxh4 22. gxh4 Qxf4 23. dxe6 fxe6 24. e5? Ftáčnik recommends instead 24.Rxd8 Rxd8 25.Rd1. Bc5+ 25. Kh1 Nh5! 26. Qxh5 Qg3 27. Nd5 Other moves get mated
Checkmate
Checkmate is a situation in chess in which one player's king is threatened with capture and there is no way to meet that threat. Or, simply put, the king is under direct attack and cannot avoid being captured...

 immediately: 27.Bxb7 Qh3#; 27.Qe2 Qxh3#; 27.Qg4 Bxg2#. Rxd5 28. Rf1 Qxg2+! 29. Kxg2 Rd2+ If 30.Kg3 (the only legal response to the double check
Double check
In chess, a double check is a check delivered by two pieces at the same time. In chess notation, it is often symbolized by "++".-Discussion:...

), Rg2+ 31.Kf4 Rf8+ forces mate. 0–1

An examination of reversed and symmetrical openings illustrates White's and Black's respective advantages:

Reversed openings

In a "reversed opening", White plays an opening typically played by Black, but with colors reversed and thus an extra tempo
Tempo (chess)
In chess, tempo refers to a "turn" or single move. When a player achieves a desired result in one fewer move, he "gains a tempo" and conversely when he takes one more move than necessary he "loses a tempo"...

. Evans writes of such openings, "If a defense is considered good for Black, it must be even better for White with a move in hand." Former World Champion Mikhail Botvinnik
Mikhail Botvinnik
Mikhail Moiseyevich Botvinnik, Ph.D. was a Soviet and Russian International Grandmaster and three-time World Chess Champion. Working as an electrical engineer and computer scientist at the same time, he was one of the very few famous chess players who achieved distinction in another career while...

 reportedly expressed the same view. Watson questions this idea, citing Suba's thesis that Black, by moving second, has more complete information than White. He writes, "everyone has such difficulties playing as White against a Sicilian Defence (1.e4 c5), but ... leading masters have no qualms about answering 1.c4 with 1...e5." To explain this paradox
Paradox
Similar to Circular reasoning, A paradox is a seemingly true statement or group of statements that lead to a contradiction or a situation which seems to defy logic or intuition...

, Watson discusses several different reversed Sicilian lines, showing how Black can exploit the disadvantages of various "extra" moves for White. He concludes, "The point is, Black's set-up in the Sicilian is fine as a reactive system, but not worth much when trying to claim the initiative as White. This is true because Black is able to react to the specific plan White chooses; in Suba's terms, his information is indeed a move greater! Furthermore, he is able to take advantage of dead equal positions which White (hoping to retain the advantage of the first move) would normally avoid."
Watson also observes, "Similarly, the Dutch Defence
Dutch Defence
The Dutch Defence is a chess opening characterised by the moves:-History:Elias Stein , an Alsatian who settled in The Hague, recommended the defence as the best reply to 1.d4 in his 1789 book Nouvel essai sur le jeu des échecs, avec des réflexions militaires relatives à ce jeu.-Theory:Black's 1.....

 looks particularly sterile when White achieves the reversed positions a tempo up (it turns out that he has nothing useful to do!); and indeed, many standard Black openings are not very inspiring when one gets them as White, tempo in hand." GM Alex Yermolinsky
Alex Yermolinsky
Alex Yermolinsky is an American chess Grandmaster. In 1993, Yermolinsky won the U.S. Chess Championship, tying for first place with Alexander Shabalov...

 likewise notes that GM Vladimir Malaniuk
Vladimir Malaniuk
Vladimir Pavlovich Malaniuk is a Ukrainian chess Grandmaster....

, a successful exponent of the Leningrad Dutch (1.d4 f5 2.g3 g6) at the highest levels, "once made a deep impression on me by casually dismissing someone's suggestion that he should try 1.f4 as White. He smiled and said, 'That extra move's gonna hurt me.' "

Yermolinsky also agrees with Alekhine's
Alexander Alekhine
Alexander Alexandrovich Alekhine was the fourth World Chess Champion. He is often considered one of the greatest chess players ever.By the age of twenty-two, he was already among the strongest chess players in the world. During the 1920s, he won most of the tournaments in which he played...

 criticism of 1.g3 e5 2.Nf3, a reversed Alekhine's Defense, in Réti
Richard Réti
Réti composed one of the most famous chess studies, shown in this diagram. It was published in Ostrauer Morgenzeitung 4 December 1921. It seems impossible for the white king to catch the advanced black pawn, while the white pawn can be easily stopped by the black king...

-Alekhine, Baden-Baden
Baden-Baden
Baden-Baden is a spa town in Baden-Württemberg, Germany. It is located on the western foothills of the Black Forest, on the banks of the Oos River, in the region of Karlsruhe...

 1925, writing that Alekhine "understood the difference in opening philosophies for White and Black, and realized they just can't be the same! White is supposed to try for more than just obtaining a comfortable game in reversed colour opening set-ups, and, as the statistics show—surprisingly for a lot of people, but not for me—White doesn't even score as well as Black does in the same positions with his extra tempo and all." Howard Staunton
Howard Staunton
Howard Staunton was an English chess master who is generally regarded as having been the world's strongest player from 1843 to 1851, largely as a result of his 1843 victory over Saint-Amant. He promoted a chess set of clearly distinguishable pieces of standardised shape—the Staunton pattern—that...

, generally considered to have been the strongest player in the world from 1843 to 1851, made a similar point over 160 years ago, writing that Owen's Defense
Owen's Defense
Owen's Defence is an uncommon chess opening defined by the moves:By playing 1...b6, Black prepares to fianchetto the queen's bishop where it will participate in the battle for the centre. The downside of this plan is that White can occupy the centre with pawns and gain a spatial advantage...

 (1.e4 b6) is playable for Black, but that 1.b3 is inferior to "the more customary [first] moves, from its being essentially defensive".

Watson concludes that (a) "most moves have disadvantages as well as advantages, so an extra move is not always an unqualified blessing"; (b) "with his extra information about what White is doing, Black can better react to the new situation"; and (c) because a draw is likely to be more acceptable to Black than to White, White is apt to avoid lines that allow drawish simplifications, while Black may not object to such lines.
Symmetrical openings

Rowson writes that "in general one would assume that whatever advantage White has would be revealed most clearly in symmetrical
Symmetry
Symmetry generally conveys two primary meanings. The first is an imprecise sense of harmonious or aesthetically pleasing proportionality and balance; such that it reflects beauty or perfection...

 positions." Accordingly, Watson, Suba, Evans, and the eminent player and theorist Aron Nimzowitsch
Aron Nimzowitsch
Aron Nimzowitsch was a Russian-born Danish unofficial chess grandmaster and a very influential chess writer...

 (1886–1935) have all argued that it is in Black's interest to avoid symmetry. Nonetheless, even symmetrical opening lines sometimes illustrate the tenuous nature of White's advantage, in several respects.

It is often difficult for White to prove an advantage in symmetrical opening lines. As GM Bent Larsen
Bent Larsen
Jørgen Bent Larsen was a Danish chess Grandmaster and author. Larsen was known for his imaginative and unorthodox style of play and he was the first western player to pose a serious challenge to the Soviet Union's dominance of chess...

 wrote, annotating a game that began 1.c4 c5 2.b3 b6, "In symmetrical openings, White has a theoretical advantage, but in many of them it is only theoretical." GM Andrew Soltis
Andrew Soltis
Andrew Eden Soltis is a chess Grandmaster, author and columnist.He won at Reggio Emilia 1971–72 and was equal first at New York 1977. He was awarded the International Master title in 1974 and became a Grandmaster in 1980...

 wrote in 2008 that he hates playing against the symmetrical Petroff's Defense (1.e4 e5 2.Nf3 Nf6), and accordingly varies with 2.Nc3, the Vienna Game
Vienna Game
The Vienna Game is a chess opening that begins with the moves:White's second move is less common than 2.Nf3, and is also of more recent vintage; a book reviewer wrote in the New York Times in 1888 that "since Morphy only one new opening has been introduced, the 'Vienna.The original idea behind...

. However, there too he has been unable to find a way to an advantage after the symmetrical 2...Nc6 3.g3 g6 4.Bg2 Bg7, or after 3.Nf3 Nf6 (transposing to the Four Knights Game
Four Knights Game
The Four Knights Game is a chess opening that begins with the moves:The opening is fairly popular with beginners who strictly adhere to the opening principle: "Develop knights before bishops." It was one of the workhorses in the family of the Open Game, at even the highest levels, until World War...

) 4.Bb5 Bb4 5.0-0 0-0 6.d3 d6 7.Bg5 Bg4 8.Nd5 Nd4 9.Nxb4 Nxb5, or 7.Ne2 Ne7 8.c3 Ba5 9.Ng3 c6 10.Ba4 Ng6 11.d4 d5, when 12.exd5?! e4! may even favor Black.

Moreover, symmetrical positions may be disadvantageous to White in that he has to commit himself first. Watson notes that it is even difficult for White to play noncommittally in a symmetrical position, since almost every move has certain drawbacks. Fischer once went so far as to claim that after 1.Nf3 Nf6 2.g3 g6 3.Bg2 Bg7 4.0-0 0-0 5.d3 d6 (Reinhard–Fischer, Western Open 1963), " 'Believe it or not,' Black stands better! Now, whatever White does, Black will vary it and get an asymmetrical
Asymmetry
Asymmetry is the absence of, or a violation of, symmetry.-In organisms:Due to how cells divide in organisms, asymmetry in organisms is fairly usual in at least one dimension, with biological symmetry also being common in at least one dimension....

 position and have the superior position due to his better pawn structure
Pawn structure
In chess, the pawn structure is the configuration of pawns on the chessboard. Since pawns are the least mobile of the chess pieces, the pawn structure is relatively static and thus largely determines the strategic nature of the position.-General observations:Weaknesses in the pawn structure, such...

!" However, GM Paul Keres
Paul Keres
Paul Keres , was an Estonian chess grandmaster, and a renowned chess writer. He was among the world's top players from the mid-1930s to the mid-1960s....

 responded in CHESS magazine
CHESS magazine
CHESS magazine , also called CHESS and previously called CHESS Monthly, is a chess magazine published monthly in the UK by Chess and Bridge Limited. CHESS was founded by Baruch Harold Wood in 1935 in Sutton Coldfield. Wood edited it until 1988, when it was taken over by Pergamon Press and changed...

, "We just don't believe it!" In symmetrical positions, as the Hodgson
Julian Hodgson
Julian Michael Hodgson is an English International Grandmaster and former British Champion of chess.He first came to the notice of the chess world for his phenomenal prowess as a junior; he was London under-18 champion at 12 years of age and won the British Boys under-21 title aged just...

Arkell
Keith Arkell
Keith Charles Arkell is an English Grandmaster of chess.As a long-time resident of the West Midlands, he has lived in Rednal, Droitwich and Worcester. His brother Nicholas was also a strong player....

 and Portisch
Lajos Portisch
Lajos Portisch is a Hungarian chess Grandmaster, whose positional style earned him the nickname, the "Hungarian Botvinnik"...

Tal
Mikhail Tal
Mikhail Tal was a Soviet–Latvian chess player, a Grandmaster, and the eighth World Chess Champion.Widely regarded as a creative genius, and the best attacking player of all time, he played a daring, combinatorial style. His play was known above all for improvisation and unpredictability....

 games discussed below illustrate, Black can continue to imitate White as long as he finds it feasible and desirable to do so, and deviate when that ceases to be the case.

Further, a particular extra move is sometimes more of a liability than an asset. For example, Soltis notes that the Exchange French position arising after 1.e4 e6 2.d4 d5 3.exd5 exd5 4.Nf3 Nf6 "is pretty equal." The same position, but with Black's knight moved to e4, arises in Petroff's Defense after 1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nf3 Nxe4 5.d4 d5. That position offers White better chances precisely because Black's extra move (...Ne4) allows the advanced knight to become a target for attack.

Finally, symmetrical positions may be difficult for the White player for psychological reasons. Watson writes that anyone who tries the Exchange French, "even if he thinks he is playing for a win, assume[s] a psychological burden. White has already ceded the advantage of the first move, and knows it, whereas Black is challenged to find ways to seize the initiative." Two famous examples of White losses in the Exchange French are M. Gurevich
Mikhail Gurevich (chess player)
Mikhail Naumovich Gurevich is a Soviet chess player. He lived in Belgium from 1991 to 2005 and since then resides in Turkey....

 – Short
Nigel Short
Nigel David Short MBE is an English chess grandmaster earning the title at the age of 19. Short is often regarded as the strongest English player of the 20th century as he was ranked third in the world, from January 1988 – July 1989 and in 1993, he challenged Garry Kasparov for the World Chess...

 and Tatai – Korchnoi
Viktor Korchnoi
Viktor Lvovich Korchnoi ; pronounced in the original Russian as "karch NOY"; Ви́ктор Льво́вич Корчно́й, born March 23, 1931 is a professional chess player, author and currently the oldest active grandmaster on the tournament circuit...

. In M. Gurevich–Short, a game between two of the world's leading players, White needed only a draw to qualify for the Candidates Matches, while Black needed to win. Gurevich played passively and was outplayed by Short, who achieved the necessary win, qualified for the Candidates, and ultimately went on to challenge Kasparov for the World Championship. In Tatai–Korchnoi, the Italian IM fell victim to Korchnoi's whirlwind mating attack, losing in just 14 moves.
Hodgson
Julian Hodgson
Julian Michael Hodgson is an English International Grandmaster and former British Champion of chess.He first came to the notice of the chess world for his phenomenal prowess as a junior; he was London under-18 champion at 12 years of age and won the British Boys under-21 title aged just...

Arkell
Keith Arkell
Keith Charles Arkell is an English Grandmaster of chess.As a long-time resident of the West Midlands, he has lived in Rednal, Droitwich and Worcester. His brother Nicholas was also a strong player....





Rowson gives the following example of Black outplaying White from the Symmetrical Variation of the English Opening
English Opening
In chess, the English Opening is the opening where White begins:A flank opening, it is the fourth most popular and, according to various databases, anywhere from one of the two most successful to the fourth most successful of White's twenty possible first moves. White begins the fight for the...

. He remarks, "there is something compelling about Black's strategy. He seems to be saying: 'I will copy all your good moves, and as soon as you make a bad move, I won't copy you any more!'"

Hodgson
Julian Hodgson
Julian Michael Hodgson is an English International Grandmaster and former British Champion of chess.He first came to the notice of the chess world for his phenomenal prowess as a junior; he was London under-18 champion at 12 years of age and won the British Boys under-21 title aged just...

Arkell
Keith Arkell
Keith Charles Arkell is an English Grandmaster of chess.As a long-time resident of the West Midlands, he has lived in Rednal, Droitwich and Worcester. His brother Nicholas was also a strong player....

, Newcastle
Newcastle upon Tyne
Newcastle upon Tyne is a city and metropolitan borough of Tyne and Wear, in North East England. Historically a part of Northumberland, it is situated on the north bank of the River Tyne...

 2001: 1. c4 c5 2. g3 g6 3. Bg2 Bg7 4. Nc3 Nc6 5. a3 a6 6. Rb1 Rb8 7. b4 cxb4 8. axb4 b5 9. cxb5 axb5 Here Rowson remarks, "Both sides want to push their d-pawn and play Bf4/...Bf5, but White has to go first so Black gets to play ...d5 before White can play d4. This doesn't matter much, but it already points to the challenge that White faces here; his most natural continuations allow Black to play the moves he wants to. I would therefore say that White is in 'Zugzwang Lite' and that he remains in this state for several moves." 10. Nf3 d5 10...Nf6 11.0-0 0-0 12.d3 d6 13.Bd2 Bd7 would transpose to the Portisch–Tal game below. 11. d4 Nf6 12. Bf4 Rb6 13. 0-0 Bf5 14. Rb3 0-0 15. Ne5 Ne4 16. h3 h5!? Finally breaking the symmetry. 17. Kh2 The position is still almost symmetrical, and White can find nothing useful to do with his extra move. Rowson whimsically suggests 17.h4!?, forcing Black to be the one to break the symmetry. 17... Re8! Rowson notes that this is a useful waiting move, covering e7, which needs protection in some lines, and possibly supporting an eventual ...e5 (see Black's twenty-second move). White cannot copy it, since after 18.Re1? Nxf2 Black would win a pawn
Pawn (chess)
The pawn is the most numerous and weakest piece in the game of chess, historically representing infantry, or more particularly armed peasants or pikemen. Each player begins the game with eight pawns, one on each square of the rank immediately in front of the other pieces...

. 18. Be3?! Nxe5! 19. dxe5 Rc6! Rowson notes that with his more active pieces, "It looks like Black has some initiative." If now 20.Nxd5, Bxe5 "is at least equal for Black". 20. Nxb5 Bxe5! 20...Nxf2? 21.Qxd5! wins. 21. Nd4 Bxd4 22. Bxd4 e5 Rowson writes, "Now both sides have their trumps, but I think Black has some advantage, due to his extra central control, imposing knight
Knight (chess)
The knight is a piece in the game of chess, representing a knight . It is normally represented by a horse's head and neck. Each player starts with two knights, which begin on the row closest to the player, one square from the corner...

 and prospects for a kingside attack." 23. b5 Rc8 24. Bb2 d4 Now White has a difficult game: Rowson analyzes 25.e3?! Nxg3 24.fxg3 Bc2 25.Qf3 Bxb3 26.exd4 Bc4!, winning; 25.g4 hxg4 26.hxg4 Nxf2! 27.Rxf2 Bc2, winning; 25.Qe1!? Rc2! with advantage; and 25.f4 (risky-looking, but perhaps best) Nc3! 26.Bxc3 dxc3 27.Qxd8 Rexd8, and Black is better. 25. b6? Overlooking Black's threat. 25... Nxf2! 26. Qe1 If 26.Rxf2, Bc2 forks
Fork (chess)
In chess, a fork is a tactic that uses a single piece to attack multiple pieces at the same time. The attacker usually hopes to gain material by capturing one of the opponent's pieces. The defender often finds himself in a difficult position in which he cannot counter all threats. The attacking...

 White's queen
Queen (chess)
The queen is the most powerful piece in the game of chess, able to move any number of squares vertically, horizontally, or diagonally. Each player starts the game with one queen, placed in the middle of the first rank next to the king. With the chessboard oriented correctly, the white queen starts...

 and rook
Rook (chess)
A rook is a piece in the strategy board game of chess. Formerly the piece was called the castle, tower, marquess, rector, and comes...

. 26... Ne4 27. b7 Rb8 28. g4 hxg4 29. hxg4 Be6 30. Rb5 Nf6! 31. Rxf6 Qxf6 32. Qg3 Bc4 33. g5 Qh8+ 0–1

Portisch
Lajos Portisch
Lajos Portisch is a Hungarian chess Grandmaster, whose positional style earned him the nickname, the "Hungarian Botvinnik"...

Tal
Mikhail Tal
Mikhail Tal was a Soviet–Latvian chess player, a Grandmaster, and the eighth World Chess Champion.Widely regarded as a creative genius, and the best attacking player of all time, he played a daring, combinatorial style. His play was known above all for improvisation and unpredictability....



The opening of the following game between two world-class players, another Symmetrical English, took a similar course:

Lajos Portisch–Mikhail Tal, Candidates Match 1965: 1. Nf3 c5 2. c4 Nc6 3. Nc3 Nf6 4. g3 g6 5. Bg2 Bg7 6. 0-0 0-0 7. d3 a6 8. a3 Rb8 9. Rb1 b5 10. cxb5 axb5 11. b4 cxb4 12. axb4 d6 13. Bd2 Bd7 Once again, White is on move in a symmetrical position, but it is not obvious what he can do with his first-move initiative. Soltis writes, "It's ridiculous to think Black's position is better. But Mikhail Tal said it is easier to play. By moving second he gets to see White's move and then decide whether to match it." 14.Qc1 Here, Soltis writes that Black could maintain equality by keeping the symmetry: 14...Qc8 15.Bh6 Bh3. Instead, he plays to prove that White's queen is misplaced. 14...Rc8! 15.Bh6 Nd4! Threatening 16...Nxe2+. 16.Nxd4 Bxh6 17.Qxh6 Rxc3 18.Qd2 Qc7 19.Rfc1 Rc8 Although the pawn structure is still symmetrical, Black's control of the c-file gives him the advantage. Black ultimately reached an endgame two pawns up, but White managed to hold a draw in 83 moves.

Tal himself lost a famous game as White from a symmetrical position in Tal – Beliavsky
Alexander Beliavsky
-External links:...

, USSR Championship 1974, an important game that allowed Beliavsky to tie for first with Tal.

Tournament and match play

In chess tournament
Chess tournament
A chess tournament is a series of chess games played competitively to determine a winning individual or team. Since the first international chess tournament in London, 1851, chess tournaments have become the standard form of chess competition among serious players.Today, the most recognized chess...

s and matches, the frequency with which each player receives White and Black is an important consideration. In matches, the players' colors in the first game are determined by drawing lots, and alternated thereafter. In round robin tournaments with an odd number of players, each player receives an equal number of Whites and Blacks; with an even number of players, each receives one extra White or Black. Where one or more players withdraws from the tournament, the tournament director
Tournament director
Tournament directors typically perform a number of key functions at competitive sporting and gaming events of all kinds. The extent of the tournament director's duties varies depending on the size of the tournament, the nature of the competition, and the number of other officials to whom roles can...

 may change the assigned colors in some games so that no player receives two more Blacks than Whites, or vice versa. The double-round robin tournament is considered to give the most reliable final standings, since each player receives the same number of Whites and Blacks, and plays both White and Black against each opponent.

In Swiss system tournament
Swiss system tournament
A Swiss-system tournament is a commonly used type of tournament where players or teams need to be paired to face each other for several rounds of competition. This type of tournament was first used in a Zurich chess tournament in 1895, hence the name "Swiss system". The Swiss system is used when...

s, the tournament director tries to ensure that each player receives, as nearly as possible, the same number of games as White and Black, and that the player's color alternates from round to round. After the first round, the director may deviate from the otherwise prescribed pairings in order to give as many players as possible their equalizing or due colors. More substantial deviations are permissible to avoid giving a player two more Blacks than Whites (for example, three Blacks in four games) than vice versa, since extra Whites "cause far less player distress" than extra Blacks, which impose "a significant handicap" on the affected player. Tournaments with an even number of rounds cause the most problems, since if there is a disparity, it is greater (e.g., a player receiving two Whites and four Blacks).

Solving chess

Endgame tablebase
Endgame tablebase
An endgame tablebase is a computerized database that contains precalculated exhaustive analysis of a chess endgame position. It is typically used by a computer chess engine during play, or by a human or computer that is retrospectively analysing a game that has already been played.The tablebase...

s have solved a very limited area of chess, determining perfect play in a number of endgames, including all non-trivial endgames with no more than six pieces or pawns (including the two kings). It is probable that all seven-piece endgames will be solved by the end of 2015.

Jonathan Rowson
Jonathan Rowson
Jonathan Rowson is Scotland's third chess Grandmaster, after Paul Motwani and Colin McNab, and has played first board at recent Chess Olympiads. He is also a chess author.-Career:...

 has speculated that "in principle it should be possible for a machine to ... develop 32-piece tablebases. This may take decades or even centuries, but unless runaway global warming or nuclear war gets in the way, I think it will eventually happen." However, information theorist
Information theory
Information theory is a branch of applied mathematics and electrical engineering involving the quantification of information. Information theory was developed by Claude E. Shannon to find fundamental limits on signal processing operations such as compressing data and on reliably storing and...

 Claude Shannon argued that it is not feasible for any computer to actually do this. In his 1950 paper "Programming a Computer for Playing Chess" he writes:

With chess it is possible, in principle, to play a perfect game or construct a machine to do so as follows: One considers in a given position all possible moves, then all moves for the opponent, etc., to the end of the game (in each variation). The end must occur, by the rules of the games after a finite number of moves (remembering the 50 move drawing rule). Each of these variations ends in win, loss or draw. By working backward from the end one can determine whether there is a forced win, the position is a draw or is lost. It is easy to show, however, even with the high computing speed available in electronic calculators this computation is impractical. In typical chess positions there will be of the order of 30 legal moves. The number holds fairly constant until the game is nearly finished as shown ... by De Groot, who averaged the number of legal moves in a large number of master games. Thus a move for White and then one for Black gives about 103 possibilities. A typical game lasts about 40 moves to resignation of one party. This is conservative for our calculation since the machine would calculate out to checkmate, not resignation. However, even at this figure there will be 10120 variations to be calculated from the initial position. A machine operating at the rate of one variation per microsecond would require over 1090 years to calculate the first move!


It is thus theoretically possible to "solve
Solved game
A solved game is a game whose outcome can be correctly predicted from any position when each side plays optimally. Games which have not been solved are said to be "unsolved"...

" chess, determining with certainty whether a perfectly played game should end in a win for White, a draw, or even a win for Black. However, according to Shannon the time frame required puts this possibility beyond the limits of any feasible technology.

Hans-Joachim Bremermann
Hans-Joachim Bremermann
Hans-Joachim Bremermann was a German-American mathematician and biophysicist. He worked on computer science and evolution, introducing new ideas of how mating generates new gene combinations...

, a professor of mathematics
Mathematics
Mathematics is the study of quantity, space, structure, and change. Mathematicians seek out patterns and formulate new conjectures. Mathematicians resolve the truth or falsity of conjectures by mathematical proofs, which are arguments sufficient to convince other mathematicians of their validity...

 and biophysics
Biophysics
Biophysics is an interdisciplinary science that uses the methods of physical science to study biological systems. Studies included under the branches of biophysics span all levels of biological organization, from the molecular scale to whole organisms and ecosystems...

 at the University of California at Berkeley, further argued in a 1965 paper that the "speed, memory, and processing capacity of any possible future computer equipment are limited by certain physical barriers: the light barrier
Speed of light
The speed of light in vacuum, usually denoted by c, is a physical constant important in many areas of physics. Its value is 299,792,458 metres per second, a figure that is exact since the length of the metre is defined from this constant and the international standard for time...

, the quantum barrier
Uncertainty principle
In quantum mechanics, the Heisenberg uncertainty principle states a fundamental limit on the accuracy with which certain pairs of physical properties of a particle, such as position and momentum, can be simultaneously known...

, and the thermodynamical barrier
Landauer's Principle
Landauer's Principle, first argued in 1961 by Rolf Landauer of IBM, holds that "any logically irreversible manipulation of information, such as the erasure of a bit or the merging of two computation paths, must be accompanied by a corresponding entropy increase in non-information bearing degrees of...

. These limitations imply, for example, that no computer, however constructed, will ever be able to examine the entire tree of possible move sequences of the game of chess." Nonetheless, Bremermann did not foreclose the possibility that a computer would someday be able to solve chess. He wrote, "In order to have a computer play a perfect or nearly perfect game [of chess] it will be necessary either to analyze the game completely ... or to analyze the game in an approximate way and combine this with a limited amount of tree searching. ... A theoretical understanding of such heuristic programming, however, is still very much wanting."

Recent scientific advances have not significantly changed that assessment. The game of checkers was solved in 2007, but it has roughly the square root of the number of positions in chess. Jonathan Schaeffer
Jonathan Schaeffer
Jonathan Herbert Schaeffer is a Canadian researcher and professor at the University of Alberta and the Canada Research Chair in Artificial Intelligence....

, the scientist who led the effort, said a breakthrough such as quantum computing would be needed before solving chess could even be attempted, but he does not rule out the possibility, saying that the one thing he learned from his 16-year effort of solving checkers "is to never underestimate the advances in technology".

Quotation

  • "You will win with either color if you are the better player, but it takes longer with Black." – Isaac Kashdan
    Isaac Kashdan
    Isaac Kashdan was an American chess grandmaster and chess writer. Kashdan was one of the world's best players in the late 1920s and early 1930s. He was twice U.S. Open champion...

The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
x
OK