Syzygy endgame tablebases

Black is winning with DTZ 104

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


Histogram: KQBN losing vs. KBB (log scale)

Longest KQBNvKBB phases

KQBNvKBB statistics (unique positions)

White wins:
382,561,435,109 (83.4%)
Frustrated white wins:
7,084,896 (0.0%)
75,786,194,061 (16.5%)
Frustrated black wins:
187,639,146 (0.0%)
Black wins:
245,094,516 (0.1%)
KQBNvKBB.json (?)