Syzygy endgame tablebases

Black is winning with DTZ 189

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

KBBNPvKQ.pgn lichess.org

Histogram: KBBNP losing vs. KQ (log scale)

Longest KBBNPvKQ phases

KBBNPvKQ statistics (unique positions)

White wins:
506,802,820,714 (35.2%)
Frustrated white wins:
900,892,110 (0.1%)
Draws:
462,975,616,944 (32.2%)
Frustrated black wins:
14,803,848,966 (1.0%)
Black wins:
452,796,267,834 (31.5%)
KBBNPvKQ.json (?)