Syzygy endgame tablebases

White is losing with DTZ 300

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


Histogram: KRBB losing vs. KQN (log scale)

Longest KRBBvKQN phases

KRBBvKQN statistics (unique positions)

White wins:
111,969,910,594 (25.6%)
Frustrated white wins:
3,577,478,684 (0.8%)
88,638,889,658 (20.3%)
Frustrated black wins:
3,338,262,052 (0.8%)
Black wins:
229,719,731,420 (52.5%)
KRBBvKQN.json (?)