Syzygy endgame tablebases

Tablebase draw

Qa4 Draw Qb5+ Draw Qb7+ Draw Qc8 Draw Qd1+ Draw Qd3 Draw Qd5 Draw Qd8 Draw Qe7 Draw Qe8 Draw Qf5 Draw Qf7 Draw Qg7 Draw Qh3 Draw Qh7 Draw Kd1 Draw Kd2 Draw Kd3 Draw Kf1 Draw Kf3 Draw

Qg4 Loss with DTZ 55 Qd2 Loss with DTZ 45 Qc6 Loss with DTZ 3 Qe6 Loss with DTZ 3 Qc7 Loss with DTZ 1 Qd4 Loss with DTZ 1 Qd6 Loss with DTZ 1 Qxa7 Zeroing

KRBBNvKQ.pgn lichess.org

Histogram: KRBBN winning vs. KQ (log scale)

Longest KRBBNvKQ phases

KRBBNvKQ statistics (unique positions)

White wins:
274,292,994,419 (62.4%)

Frustrated white wins:
99,663,112 (0.0%)

Draws:
138,469,313,381 (31.5%)

Frustrated black wins:
2,380,920,624 (0.5%)

Black wins:
23,985,948,792 (5.5%)

KRBBNvKQ.json (?)

KRBBNvKQ dependencies

To probe all KRBBNvKQ positions, these tables and their transitive dependencies are also required:

KRBBNvK · KBBNvKQ · KRBNvKQ · KRBBvKQ

KRBBNvKQ.txt KRBBNvKQ.dot