Syzygy endgame tablebases

Black is losing with DTZ 112

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


Histogram: KQRR winning vs. KRP (log scale)

Longest KQRRvKRP phases

KQRRvKRP statistics (unique positions)

White wins:
1,263,148,628,182 (98.9%)
Frustrated white wins:
131,036 (0.0%)
8,647,803,670 (0.7%)
Frustrated black wins:
31,882 (0.0%)
Black wins:
4,826,100,850 (0.4%)
KQRRvKRP.json (?)