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Syzygy endgame tablebases

Black is losing with DTZ 401

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

KRBNPvKQ.pgn

Histogram: KRBNP winning (log scale)

Longest KRBNPvKQ phases

KRBNPvKQ statistics

731,974,842,085 (52.6%)
392,462,577 (0.0%)
457,107,312,656 (32.9%)
1,515,408,023 (0.1%)
199,391,990,229 (14.3%)
KRBNPvKQ.json (?)