Syzygy endgame tablebases

White is winning with DTZ 1

Bxf1 Zeroing Rd6+ Win with DTZ 2 Re8+ Win with DTZ 2 Bac4 Win with DTZ 28 Bdc4 Win with DTZ 30 Bg6 Win with DTZ 31 Be2 Win with DTZ 34 Be4 Win with DTZ 35 Bdb1 Win with DTZ 40

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