Syzygy endgame tablebases

Black is losing with DTZ 178

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


Histogram: KBBPP winning vs. KR (log scale)

Longest KBBPPvKR phases

KBBPPvKR statistics (unique positions)

White wins:
916,430,259,228 (76.3%)
Frustrated white wins:
231,133,604 (0.0%)
280,980,817,720 (23.4%)
Black wins:
3,681,936,256 (0.3%)
KBBPPvKR.json (?)