Syzygy endgame tablebases

Tablebase draw

Qxg5 Draw Bxe4 Draw Be2+ Draw

Kc7 Loss with DTZ 1 Kc8 Loss with DTZ 1 Kd7 Loss with DTZ 1 Ke8 Loss with DTZ 1 Qf6+ Loss with DTZ 1 Bd1 Loss with DTZ 1 Bg2 Loss with DTZ 1 Bg4 Loss with DTZ 1 Bh1 Loss with DTZ 1 Bh5 Loss with DTZ 1 Bb8 Loss with DTZ 1 Bc7 Loss with DTZ 1 Bd6 Loss with DTZ 1 Be1 Loss with DTZ 1 Be5 Loss with DTZ 1 Bf2 Loss with DTZ 1 Bf4 Loss with DTZ 1 Bh2 Loss with DTZ 1 Bh4 Loss with DTZ 1

KQBBvKQQ.pgn lichess.org

Histogram: KQBB losing vs. KQQ (log scale)

Longest KQBBvKQQ phases

KQBBvKQQ statistics (unique positions)

White wins:
73,255,125,086 (21.6%)

Frustrated white wins:
47,379,422 (0.0%)

Draws:
66,887,261,032 (19.7%)

Frustrated black wins:
2,955,100,724 (0.9%)

Black wins:
196,135,819,030 (57.8%)

KQBBvKQQ.json (?)

KQBBvKQQ dependencies

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

KQQvKBB · KQBBvKQ · KQQvKQB

KQBBvKQQ.txt KQBBvKQQ.dot