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Syzygy endgame tablebases

Black is losing with DTZ 122

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

KQRRNvKQ.pgn

Histogram: KQRRN winning (log scale)

Longest KQRRNvKQ phases

KQRRNvKQ statistics

364,968,325,455 (96.9%)
7,908,956 (0.0%)
10,411,665,901 (2.8%)
1,299,826,278 (0.3%)
KQRRNvKQ.json (?)