Syzygy endgame tablebases
White to move
Black to move
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White is winning with DTZ 655
Rc6+
Win with DTZ 654
Rf2
Draw
Rf3+
Draw
Rd6
Loss with DTZ 4
Ke1
Loss with DTZ 1
Ke2
Loss with DTZ 1
Bb5
Loss with DTZ 1
Bc6
Loss with DTZ 1
Bc8
Loss with DTZ 1
Bde6
Loss with DTZ 1
Be8
Loss with DTZ 1
Bf5
Loss with DTZ 1
Bg4
Loss with DTZ 1
Bh3
Loss with DTZ 1
Ra6
Loss with DTZ 1
Rb6
Loss with DTZ 1
Re6
Loss with DTZ 1
Rf1
Loss with DTZ 1
Rf4
Loss with DTZ 1
Rf5
Loss with DTZ 1
Rf7
Loss with DTZ 1
Rf8
Loss with DTZ 1
Rg6
Loss with DTZ 1
Rh6
Loss with DTZ 1
Ba2
Loss with DTZ 1
Bb3
Loss with DTZ 1
Bc4
Loss with DTZ 1
Bd5
Loss with DTZ 1
Bge6
Loss with DTZ 1
Bf7
Loss with DTZ 1
Bh7
Loss with DTZ 1
a5
Zeroing
This is a cursed win.
Mate can be forced, but a draw can be achieved under the fifty-move rule.
KRBBPvKQ.pgn
lichess.org
Histogram: KRBBP winning vs. KQ (log scale)
Longest KRBBPvKQ phases
KRBBP winning with DTZ 100
KRBBP winning with DTZ 656 (frustrated)
KRBBP losing with DTZ 143 (frustrated)
KRBBP losing with DTZ 77
KRBBPvKQ statistics (unique positions)
White wins:
727,872,993,812 (53.7%)
Frustrated white wins:
13,053,407,274 (1.0%)
Draws:
447,419,064,034 (33.0%)
Frustrated black wins:
8,361,656,942 (0.6%)
Black wins:
157,978,130,642 (11.7%)
KRBBPvKQ.json
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