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.

KRBBvKR.pgn lichess.org

Histogram: KRBB winning vs. KR (log scale)

Longest KRBBvKR phases

KRBBvKR statistics (unique positions)

White wins:
6,397,603,625 (75.0%)
Frustrated white wins:
66,142 (0.0%)
Draws:
2,124,932,026 (24.9%)
Black wins:
9,635,151 (0.1%)
KRBBvKR.json (?)