Syzygy endgame tablebases

Black is losing with DTZ 26

KBBBNvK.pgn lichess.org

Histogram: KBBBN winning vs. K (log scale)

Longest KBBBNvK phases

KBBBNvK statistics (unique positions)

White wins:
9,529,515,486 (98.7%)
Draws:
128,672,610 (1.3%)
KBBBNvK.json (?)