Syzygy endgame tablebases

Black is losing with DTZ 150

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

KQRBvKQP.pgn lichess.org

Histogram: KQRB winning vs. KQP (log scale)

Longest KQRBvKQP phases

KQRBvKQP statistics (unique positions)

White wins:
928,697,152,963 (77.2%)
Frustrated white wins:
1,749,283 (0.0%)
Draws:
153,233,000,993 (12.7%)
Frustrated black wins:
78,422,481 (0.0%)
Black wins:
120,409,611,216 (10.0%)
KQRBvKQP.json (?)