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Syzygy endgame tablebases

Black is winning with DTZ 131

Qh4+ Win with DTZ 130

Qa5 Draw Qa8+ Draw Qb6 Draw Qb8 Draw Qc7 Draw Qc8 Draw Qd2 Draw Qd3 Draw Qd6 Draw Qd7 Draw Qe7 Draw Qe8 Draw Qf8 Draw Qg5 Draw Qh8 Draw Kg6 Draw Kh6 Draw

Qd1+ Loss with DTZ 1 Qd4 Loss with DTZ 1 Qd5+ Loss with DTZ 1 Qf6 Loss with DTZ 1 Qg8 Loss with DTZ 1

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

KQBvKQP.pgn lichess.org

Histogram: KQB losing vs. KQP (log scale)

Longest KQBvKQP phases

KQBvKQP statistics

6,091,154,235 (27.0%)

214 (0.0%)

11,371,579,316 (50.4%)

333,993 (0.0%)

5,114,742,384 (22.7%)

KQBvKQP.json (?)