Syzygy endgame tablebases

Black is winning with DTZ 118

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


Histogram: KQBB losing vs. KRP (log scale)

Longest KQBBvKRP phases

KQBBvKRP statistics (unique positions)

White wins:
1,172,905,631,082 (85.5%)
Frustrated white wins:
8,852,074 (0.0%)
177,206,092,070 (12.9%)
Frustrated black wins:
490,294,898 (0.0%)
Black wins:
21,049,412,940 (1.5%)
KQBBvKRP.json (?)