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.

KRBNNvKR.pgn lichess.org

Histogram: KRBNN winning vs. KR (log scale)

Longest KRBNNvKR phases

KRBNNvKR statistics (unique positions)

White wins:
450,558,713,569 (91.2%)
Frustrated white wins:
93,910 (0.0%)
Draws:
42,771,363,262 (8.7%)
Black wins:
550,215,255 (0.1%)
KRBNNvKR.json (?)