Syzygy endgame tablebases

Black is winning with DTZ 225

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

KBNPvKRR.pgn lichess.org

Histogram: KBNP losing vs. KRR (log scale)

Longest KBNPvKRR phases

KBNPvKRR statistics (unique positions)

White wins:
152,713,401,652 (10.2%)
Frustrated white wins:
954,738,288 (0.1%)
Draws:
405,506,877,480 (27.0%)
Frustrated black wins:
1,651,615,512 (0.1%)
Black wins:
940,666,862,460 (62.6%)
KBNPvKRR.json (?)