Syzygy endgame tablebases

Black is losing with DTZ 138

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


Histogram: KBBB winning vs. KRB (log scale)

Longest KBBBvKRB phases

KBBBvKRB statistics (unique positions)

White wins:
54,350,488,131 (11.4%)
Frustrated white wins:
117,310,953 (0.0%)
411,915,607,590 (86.1%)
Frustrated black wins:
153,319,350 (0.0%)
Black wins:
11,904,124,770 (2.5%)
KBBBvKRB.json (?)