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Syzygy endgame tablebases

Black is losing with DTZ 146

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

KQRvKQB.pgn

Histogram: KQR winning (log scale)

Longest KQRvKQB phases

KQRvKQB statistics

3,190,249,626 (47.3%)
40,068 (0.0%)
2,182,749,706 (32.4%)
1,371,933,194 (20.3%)
KQRvKQB.json (?)