Syzygy endgame tablebases
White to move
Black to move
JavaScript required for interactive board view.
Black is losing with DTZ 10
Ke3
Loss with DTZ 9
Kf3
Loss with DTZ 9
Kf2
Loss with DTZ 7
Kf1
Loss with DTZ 5
Ke1
Loss with DTZ 3
KRRRBNvK.pgn
lichess.org
Histogram: KRRRBN winning vs. K (log scale)
Longest KRRRBNvK phases
KRRRBN winning with DTZ 11
KRRRBNvK statistics (unique positions)
White wins:
486,496,962,927 (98.6%)
Draws:
7,069,706,853 (1.4%)
KRRRBNvK.json
(?)