Nemesis is an English draughts

English draughts

English draughts or checkers , also called American checkers or straight checkers or in Israel damka, is a form of draughts board game. Unlike international draughts, it is played on an eight by eight squared board with twelve pieces on each side...

 program by Murray Cash. Today Nemesis is no longer commercially available and developing has stopped years ago.

Nemesis was the strongest program in 2002, when it won the British computer championship against Wyllie, an 16-game match ending +5=11 in favor for Nemesis and the Computer Checkers World Championship played out in Las Vegas.

The World Championship was a tournament featuring Nemesis, Cake and KingsRow

KingsRow

KingsRow is a strong checkers and draughts engine. It was released by Ed Gilbert in 2000.The checkers engine can be used with the CheckerBoard GUI. The engine available as freeware.-History:...

. After 72 games, each program played each other 24 times, the final standings were:

1. Nemesis 24.5 points (+1=47-0, 1 win against Cake)
2. KingsRow 24 points (+1=46-1, win and loss against Cake)
3. Cake 23.5 Points (+1=45-2, win against KingsRow, loss against Nemesis and Kingsrow)

Nemesis used an own 8-piece 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...

.