Syzygy endgame tablebases
White to move
Black to move
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Tablebase draw
Qxb5+
Draw
Qd3+
Loss with DTZ 13
Qb3+
Loss with DTZ 12
Qf5+
Loss with DTZ 10
Qf7
Loss with DTZ 9
Qg5
Loss with DTZ 9
Qe5
Loss with DTZ 5
Qe6
Loss with DTZ 5
Qd2
Loss with DTZ 3
Qd7
Loss with DTZ 3
Qh5
Loss with DTZ 3
Kd2
Loss with DTZ 1
Ke1
Loss with DTZ 1
Ke2
Loss with DTZ 1
Qa2+
Loss with DTZ 1
Qc4
Loss with DTZ 1
Qc5
Loss with DTZ 1
Qc6
Loss with DTZ 1
Qd4
Loss with DTZ 1
Qd6
Loss with DTZ 1
Qd8
Loss with DTZ 1
Qe4+
Loss with DTZ 1
Qf3
Loss with DTZ 1
Qg2
Loss with DTZ 1
Qg8
Loss with DTZ 1
Qh1
Loss with DTZ 1
Qxb7
Zeroing
KRRBNvKQ.pgn
lichess.org
Histogram: KRRBN winning vs. KQ (log scale)
Longest KRRBNvKQ phases
KRRBN winning with DTZ 100
KRRBN winning with DTZ 163 (frustrated)
KRRBN losing with DTZ 31
KRRBNvKQ statistics (unique positions)
White wins:
334,411,661,737 (79.2%)
Frustrated white wins:
58,336,799 (0.0%)
Draws:
81,928,183,430 (19.4%)
Black wins:
5,795,099,484 (1.4%)
KRRBNvKQ.json
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