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Syzygy endgame tablebases

Black is losing with DTZ 240

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

KRRRvKQP.pgn

Histogram: KRRR winning (log scale)

Longest KRRRvKQP phases

KRRRvKQP statistics

858,017,196,672 (69.8%)
18,589,974 (0.0%)
298,104,364,548 (24.2%)
21,512,172 (0.0%)
73,879,959,930 (6.0%)
KRRRvKQP.json (?)