Syzygy endgame tablebases

Black is winning with DTZ 3

Qa1+ Win with DTZ 2

Qb1 Draw Qc1 Draw Qc3 Draw Qd2 Draw Qf2 Draw Qg1 Draw Qg3 Draw Qh1 Draw Qh4+ Draw Kd2 Draw Kd3 Draw Ke3 Draw Kf1 Draw Kf2 Draw Kf3 Draw

Qf1 Loss with DTZ 2 Qa5+ Loss with DTZ 1 Qb4+ Loss with DTZ 1 Qd1 Loss with DTZ 1

KBBNvKQ.pgn lichess.org

Histogram: KBBN losing vs. KQ (log scale)

Longest KBBNvKQ phases

KBBNvKQ statistics (unique positions)

White wins:
1,872,817,112 (22.6%)

Draws:
2,172,195,024 (26.2%)

Frustrated black wins:
187,643,772 (2.3%)

Black wins:
4,045,559,934 (48.9%)

KBBNvKQ.json (?)