Syzygy endgame tablebases

Black is losing with DTZ 120

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


Histogram: KBBNN winning vs. KR (log scale)

Longest KBBNNvKR phases

KBBNNvKR statistics (unique positions)

White wins:
386,224,054,952 (75.8%)
Frustrated white wins:
6,827,768 (0.0%)
122,446,712,502 (24.0%)
Black wins:
605,157,358 (0.1%)
KBBNNvKR.json (?)