What is DTZ? DTZ means distance to zeroing of the counter for the 50-move drawing rule. Syzygy tablebases do not aim for the fastest way to mate, but rather for the fastest way to make a winning capture or pawn move or give mate.
What is a tablebase draw?
An endgame tablebase is a computerized database that contains precalculated exhaustive analysis of chess endgame positions. The tablebase contains the game-theoretical value (win, loss, or draw) in each possible position, and how many moves it would take to achieve that result with perfect play.
What can you do with a Syzygy tablebase?
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 and DTZ information. Forcing captures or pawn moves while keeping a win in hand ensures that progress is being made.
Who is the creator of the 7 piece Syzygy tablebase?
Half-way into the process, Ronald de Man (the original author of the Syzygy tablebase generator) managed to significantly speed up generation of pawnless tables by making it NUMA-aware. He also fixed any other issues that occured while generating 7-piece tables. The project was completed today, after exactly 5 months.
How many pieces can you play in a syzygy table?
Syzygy tablebases. About. 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 and DTZ information.
Is there an extension to the syzygy table format?
Qd8+ Draw claimed. There would still be 934 half-moves to go. This requires a small extension to the Syzygy table format: With 6-piece endgames 8 bits were sufficient for the largest entry in the DTZ map. Now wider DTZ values are required. Surprisingly this extension is even required for endgames with pawns.
