Syzygy endgame tablebases

Tablebase draw

Bxc5+ Draw Bd6 Draw Be1+ Draw

Kb2 Loss with DTZ 124

Ka1 Loss with DTZ 9 Ka2 Loss with DTZ 9 Ba7 Loss with DTZ 9 Bb8 Loss with DTZ 9 Bgc7 Loss with DTZ 9 Bf2 Loss with DTZ 9 Bf4 Loss with DTZ 9 Bh4 Loss with DTZ 9 Bbc7 Loss with DTZ 7 Bd8 Loss with DTZ 7 Bh2 Loss with DTZ 7 Ba5+ Loss with DTZ 1 Be5 Loss with DTZ 1

KBBvKRB.pgn lichess.org

Histogram: KBB losing vs. KRB (log scale)

Longest KBBvKRB phases

KBBvKRB statistics (unique positions)

White wins:
17,200,252 (0.2%)

Draws:
6,183,435,937 (70.2%)

Frustrated black wins:
7,541,509 (0.1%)

Black wins:
2,596,523,680 (29.5%)

KBBvKRB.json (?)

KBBvKRB dependencies

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

KBBvKB · KRBvKB · KBBvKR

KRBvKBB.txt KRBvKBB.dot