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Syzygy endgame tablebases

Black is losing with DTZ 250

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

KRRBPvKQ.pgn

Histogram: KRRBP winning (log scale)

Longest KRRBPvKQ phases

KRRBPvKQ statistics

960,470,124,464 (73.8%)
1,249,857,086 (0.1%)
300,738,003,220 (23.1%)
17,116,324 (0.0%)
39,182,881,508 (3.0%)
KRRBPvKQ.json (?)