Syzygy endgame tablebases

Tablebase draw

Qb7 Draw Qc6 Draw Qe7+ Draw Qg7 Draw Qh3+ Draw

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