Syzygy endgame tablebases

White is losing with DTZ 181

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

KRBBvKQP.pgn lichess.org

Histogram: KRBB losing vs. KQP (log scale)

Longest KRBBvKQP phases

KRBBvKQP statistics (unique positions)

White wins:
357,514,193,500 (26.4%)
Frustrated white wins:
932,384 (0.0%)
Draws:
511,944,899,014 (37.8%)
Frustrated black wins:
5,598,745,170 (0.4%)
Black wins:
478,213,910,064 (35.3%)
KRBBvKQP.json (?)