Syzygy endgame tablebases

Black is losing with DTZ 146

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


Histogram: KQR winning vs. KQB (log scale)

Longest KQRvKQB phases

KQRvKQB statistics (unique positions)

White wins:
3,190,249,626 (47.3%)
Frustrated white wins:
40,068 (0.0%)
2,182,749,706 (32.4%)
Black wins:
1,371,933,194 (20.3%)
KQRvKQB.json (?)