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.

KRRBvKBN.pgn lichess.org

Histogram: KRRB winning vs. KBN (log scale)

Longest KRRBvKBN phases

KRRBvKBN statistics (unique positions)

White wins:
447,725,351,372 (93.3%)
Frustrated white wins:
12,551,443,230 (2.6%)
Draws:
19,802,060,698 (4.1%)
Black wins:
37,488,578 (0.0%)
KRRBvKBN.json (?)