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Syzygy endgame tablebases

Black is losing with DTZ 162

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

KQRBPvKQ.pgn lichess.org

Histogram: KQRBP winning vs. KQ (log scale)

Longest KQRBPvKQ phases

KQRBPvKQ statistics

1,075,538,141,282 (89.0%)
41,065,481 (0.0%)
115,020,791,426 (9.5%)
6,400,705 (0.0%)
17,812,035,574 (1.5%)
KQRBPvKQ.json (?)