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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 tables provide WDL 50 and DTZ 50 ′′ information.
- White to move
White to move - KvK – Syzygy endgame tablebases
- Black to move
Black to move - KvK – Syzygy endgame tablebases
- Mirror horizontally
Mirror horizontally - KvK – Syzygy endgame tablebases
- Metrics
DTZ 50 ′′ with rounding. Once a tablebase position has been...
- Black Escapes to a Blessed Loss With an Underpromotion
Black Escapes to a Blessed Loss With an Underpromotion - KvK...
- KvK.pgn
KvK.pgn - KvK – Syzygy endgame tablebases
- White to move
29 cze 2023 · In the 7-piece tablebase, the longest sequence is 549 moves, so it is surprising that the 8-piece tablebase is not too much longer. This sequence involves white having 2 dark-squared bishops, so it is not a position that is likely to occur in real games.
The Nalimov tablebases have two files per endgame, one for "White To Move", one for "Black To Move". The Syzygy tablebases only need one file, regardless of who is moving, but there are two versions of each tablebase: one contains the WDL (Win-Draw-Loss) result and the other contains the DTZ (Distance-To-Zero) result.
19 sie 2018 · How to use tablebases on Lichess? In endgame positions the opening explorer is replaced by a tablebase explorer. During analysis, click the book icon on the right side of the board to open it. It will show objective evaluations for every move in the position, giving you the best lines.
7 sie 2015 · Tablebases are databases of endgame positions, with few pieces left on the board (say a 5-man tablebase, which consists of all legal positions with 5 pieces on the board in total, including kings, say K+Q vs. K+R+B).
During its game play and/or search, recognizing a specific material composition, a chess program can probe, or in principle compute these tables to determine the outcome of positions definitively and act as an oracle providing the optimal moves.
File Types. Syzygy Bases consist of two sets of files, WDL files (extension .rtbw) storing win/draw/loss information considering the fifty-move rule for access during search, and DTZ files (extension .rtbz) with distance-to-zero information for access at the root.
