Syzygy endgame tablebases
White to move
Black to move
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Tablebase draw
Qb7+
Draw
Qxc5
Draw
Qc4
Loss with DTZ 33
Qe4+
Loss with DTZ 33
Qd3+
Loss with DTZ 27
Qc6
Loss with DTZ 25
Qd7
Loss with DTZ 25
Qf5+
Loss with DTZ 25
Qf7
Loss with DTZ 25
Qg8
Loss with DTZ 25
Qh1
Loss with DTZ 25
Qh5
Loss with DTZ 25
Qd8
Loss with DTZ 23
Qe6
Loss with DTZ 23
Qf3
Loss with DTZ 23
Qg5
Loss with DTZ 23
Ke1
Loss with DTZ 5
Qa8
Loss with DTZ 1
Qb3+
Loss with DTZ 1
Qd2
Loss with DTZ 1
Qd4
Loss with DTZ 1
Qd6
Loss with DTZ 1
Qe5
Loss with DTZ 1
Qg2
Loss with DTZ 1
Qxa2+
Zeroing
KRBBNvKQ.pgn
lichess.org
Histogram: KRBBN winning vs. KQ (log scale)
Longest KRBBNvKQ phases
KRBBN winning with DTZ 100
KRBBN winning with DTZ 380 (frustrated)
KRBBN losing with DTZ 132 (frustrated)
KRBBN losing with DTZ 41
KRBBNvKQ statistics (unique positions)
White wins:
274,292,994,419 (62.4%)
Frustrated white wins:
99,663,112 (0.0%)
Draws:
138,469,313,381 (31.5%)
Frustrated black wins:
2,380,920,624 (0.5%)
Black wins:
23,985,948,792 (5.5%)
KRBBNvKQ.json
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