Syzygy endgame tablebases
White to move
Black to move
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Tablebase draw
Rb2+
Draw
Rc1+
Draw
Rc8
Loss with DTZ 3
Ra2
Loss with DTZ 1
Rc3
Loss with DTZ 1
Rc4
Loss with DTZ 1
Rc5
Loss with DTZ 1
Rc6
Loss with DTZ 1
Rc7
Loss with DTZ 1
Rd2
Loss with DTZ 1
Re2
Loss with DTZ 1
Rf2
Loss with DTZ 1
Rxg2
Zeroing
KRRRBvKR.pgn
lichess.org
Histogram: KRRRB winning vs. KR (log scale)
⋮
Longest KRRRBvKR phases
KRRRB winning with DTZ 61
KRRRB winning with DTZ 107 (frustrated)
KRRRB losing with DTZ 3
KRRRBvKR statistics (unique positions)
White wins:
437,508,060,186 (99.8%)
Frustrated white wins:
33,522 (0.0%)
Draws:
638,156,682 (0.1%)
Black wins:
267,261,108 (0.1%)
KRRRBvKR.json
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