


Forcing captures or pawn moves while keeping a win in hand ensures that progress is being made.ĭTZ optimal play is not always the shortest way to mate ( DTM) and can even look unintuitive: For example sometimes pieces can be sacrificed to reset the fifty-move counter as soon as possible. The tables provide WDL 50 and DTZ 50′′ information.

Syzygy tablebases allow perfect play with up to 7 pieces, both with and without the fifty-move drawing rule, i.e., they allow winning all won positions and bringing all drawn positions over the fifty-move line. The game is drawn because with the remaining material no sequence of legal moves can lead to checkmate.
