Syzygy endgame tablebases
White to move
Black to move
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Black is losing with DTZ 2
Kd7
Loss with DTZ 1
Ke7
Loss with DTZ 1
KRRBvKQ.pgn
lichess.org
Histogram: KRRB winning vs. KQ (log scale)
Longest KRRBvKQ phases
KRRB winning with DTZ 100
KRRB winning with DTZ 164 (frustrated)
KRRB losing with DTZ 33
KRRBvKQ statistics (unique positions)
White wins:
4,924,729,003 (66.3%)
Frustrated white wins:
693,854 (0.0%)
Draws:
2,116,388,889 (28.5%)
Black wins:
385,609,706 (5.2%)
KRRBvKQ.json
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