Syzygy endgame tablebases

Black is losing with DTZ 136

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


Histogram: KBBN winning vs. KR (log scale)

Longest KBBNvKR phases

KBBNvKR statistics (unique positions)

White wins:
4,018,718,741 (44.4%)
Frustrated white wins:
923,331 (0.0%)
5,016,566,613 (55.4%)
Black wins:
15,355,953 (0.2%)
KBBNvKR.json (?)