Syzygy endgame tablebases

Black is losing with DTZ 116

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

KRRNvKBB.pgn lichess.org

Histogram: KRRN winning vs. KBB (log scale)

Longest KRRNvKBB phases

KRRNvKBB statistics (unique positions)

White wins:
411,647,588,216 (86.9%)
Frustrated white wins:
23,235,244,586 (4.9%)
Draws:
38,484,872,150 (8.1%)
Frustrated black wins:
244,892,532 (0.1%)
Black wins:
279,978,428 (0.1%)
KRRNvKBB.json (?)