Syzygy endgame tablebases

Black is losing with DTZ 114

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


Histogram: KRRR winning vs. KBP (log scale)

Longest KRRRvKBP phases

KRRRvKBP statistics (unique positions)

White wins:
1,404,881,530,614 (98.6%)
Frustrated white wins:
450,893,886 (0.0%)
13,463,484,396 (0.9%)
Frustrated black wins:
15,286,098 (0.0%)
Black wins:
5,771,072,094 (0.4%)
KRRRvKBP.json (?)