Syzygy endgame tablebases

Black is losing with DTZ 166

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


Histogram: KQQP winning vs. KQR (log scale)

Longest KQQPvKQR phases

KQQPvKQR statistics (unique positions)

White wins:
663,901,991,672 (63.7%)
Frustrated white wins:
21,404,858 (0.0%)
152,304,825,666 (14.6%)
Frustrated black wins:
12,432,300 (0.0%)
Black wins:
225,349,002,864 (21.6%)
KQQPvKQR.json (?)