Syzygy endgame tablebases

Black is losing with DTZ 106

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


Histogram: KQQR winning vs. KQ (log scale)

Longest KQQRvKQ phases

KQQRvKQ statistics (unique positions)

White wins:
5,991,609,794 (97.7%)
Frustrated white wins:
7,078 (0.0%)
126,387,449 (2.1%)
Black wins:
14,481,965 (0.2%)
KQQRvKQ.json (?)