Syzygy endgame tablebases
White to move
Black to move
JavaScript required for interactive board view.
White is winning with DTZ 100
Rg4
Win with DTZ 99
Ka2
Draw
Kb1
Draw
Bb3
Draw
Bd7
Draw
a8=Q+
Draw
a8=R+
Draw
Bb8
Draw
Bc7+
Draw
Be1+
Draw
Be5
Draw
Bf2
Draw
Rb7
Draw
Rc7
Draw
Rd7
Draw
Re7
Draw
Rf7
Draw
Rg5+
Draw
Rg6
Draw
Rg8
Draw
Rh7
Draw
Kb2
Loss with DTZ 1
Bb5
Loss with DTZ 1
Bc2
Loss with DTZ 1
Bc6
Loss with DTZ 1
Bd1
Loss with DTZ 1
Be8
Loss with DTZ 1
Bd6
Loss with DTZ 1
Bf4
Loss with DTZ 1
Bh2
Loss with DTZ 1
Bh4
Loss with DTZ 1
a8=B
Zeroing
a8=N
Zeroing
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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