Syzygy endgame tablebases

Black is losing with DTZ 222

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

KQBPvKQ.pgn lichess.org

Histogram: KQBP winning vs. KQ (log scale)

Longest KQBPvKQ phases

KQBPvKQ statistics (unique positions)

White wins:
15,461,045,961 (68.4%)
Frustrated white wins:
2,171,290 (0.0%)
Draws:
4,020,034,138 (17.8%)
Black wins:
3,128,774,307 (13.8%)
KQBPvKQ.json (?)