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Syzygy endgame tablebases

Black is losing with DTZ 110

Bc5+ Loss with DTZ 109 Bxh3 Zeroing

Bb2 Loss with DTZ 1 Bb4 Loss with DTZ 1 Bc1 Loss with DTZ 1 Bd6 Loss with DTZ 1 Be7 Loss with DTZ 1 Bf8 Loss with DTZ 1 Ka4 Loss with DTZ 1 Kb4 Loss with DTZ 1 Kb5 Loss with DTZ 1 Ba4 Loss with DTZ 1 Bb5 Loss with DTZ 1 Bc6 Loss with DTZ 1 Bc8 Loss with DTZ 1 Be6 Loss with DTZ 1 Be8 Loss with DTZ 1 Bf5 Loss with DTZ 1 Bg4 Loss with DTZ 1 Kxa6 Zeroing Kxb6 Zeroing

This is a blessed loss. Mate can be forced, but a draw can be achieved under the fifty-move rule.

KQPPvKBB.pgn lichess.org

Histogram: KQPP winning vs. KBB (log scale)

⋮

Longest KQPPvKBB phases

KQPPvKBB statistics

965,886,817,340 (87.0%)

507,176,608 (0.0%)

88,654,814,836 (8.0%)

3,112,556 (0.0%)

54,877,324,780 (4.9%)

KQPPvKBB.json (?)