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Syzygy endgame tablebases

Black is losing with DTZ 101

Ka5 Loss with DTZ 1 Ka6 Loss with DTZ 1 Kb5 Loss with DTZ 1 a1=R+ Zeroing a1=B Zeroing a1=N Zeroing Kxc7 Zeroing

This is a blessed loss. Mate can be forced, but a draw can be achieved under the fifty-move rule.

Histogram: KRRRR winning (log scale)

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Longest KRRRRvKP phases

KRRRRvKP statistics

1,423,393,540,656 (99.8%)

20,520 (0.0%)

2,934,508,968 (0.2%)

69,856,512 (0.0%)

KRRRRvKP.json (?)