Syzygy endgame tablebases

White is winning with DTZ 123

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


Histogram: KRBN winning vs. KRR (log scale)

Longest KRBNvKRR phases

KRBNvKRR statistics (unique positions)

White wins:
96,652,307,213 (21.3%)
Frustrated white wins:
1,252,885 (0.0%)
287,824,868,821 (63.4%)
Frustrated black wins:
602,834 (0.0%)
Black wins:
69,642,679,847 (15.3%)
KRBNvKRR.json (?)