Syzygy endgame tablebases

Black is losing with DTZ 212

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


Histogram: KQBB winning vs. KQP (log scale)

Longest KQBBvKQP phases

KQBBvKQP statistics (unique positions)

White wins:
796,937,649,402 (64.1%)
Frustrated white wins:
119,551,806 (0.0%)
247,328,800,092 (19.9%)
Frustrated black wins:
2,888,720,004 (0.2%)
Black wins:
196,729,990,616 (15.8%)
KQBBvKQP.json (?)