Syzygy endgame tablebases

White is winning with DTZ 261

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


Histogram: KRRR winning vs. KQN (log scale)

Longest KRRRvKQN phases

KRRRvKQN statistics (unique positions)

White wins:
244,987,550,250 (61.8%)
Frustrated white wins:
204,833,664 (0.1%)
97,647,273,366 (24.6%)
Frustrated black wins:
10,106,211,858 (2.6%)
Black wins:
43,322,338,326 (10.9%)
KRRRvKQN.json (?)