Syzygy endgame tablebases

White is losing with DTZ 135

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

KQBBvKBP.pgn lichess.org

Histogram: KQBB losing vs. KBP (log scale)

Longest KQBBvKBP phases

KQBBvKBP statistics (unique positions)

White wins:
1,274,782,933,010 (88.6%)
Frustrated white wins:
18,323,492 (0.0%)
Draws:
154,435,497,272 (10.7%)
Frustrated black wins:
200,949,962 (0.0%)
Black wins:
9,107,651,976 (0.6%)
KQBBvKBP.json (?)