Syzygy endgame tablebases

Black is losing with DTZ 128

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

KRBBvKBN.pgn lichess.org

Histogram: KRBB winning vs. KBN (log scale)

Longest KRBBvKBN phases

KRBBvKBN statistics (unique positions)

White wins:
404,677,520,228 (81.2%)
Frustrated white wins:
14,414,916,291 (2.9%)
Draws:
79,384,285,389 (15.9%)
Black wins:
63,263,916 (0.0%)
KRBBvKBN.json (?)