Syzygy endgame tablebases

Black is losing with DTZ 279

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

KRNvKBB.pgn lichess.org

Histogram: KRN winning vs. KBB (log scale)

Longest KRNvKBB phases

KRNvKBB statistics (unique positions)

White wins:
2,608,011,348 (28.9%)
Frustrated white wins:
1,520,960,655 (16.9%)
Draws:
4,301,853,479 (47.7%)
Frustrated black wins:
287,005,078 (3.2%)
Black wins:
302,101,878 (3.3%)
KRNvKBB.json (?)