Syzygy endgame tablebases

Black is losing with DTZ 40

KBBBvKB.pgn lichess.org

Histogram: KBBB winning vs. KB (log scale)

Longest KBBBvKB phases

KBBBvKB statistics (unique positions)

White wins:
3,228,198,270 (35.1%)
Draws:
5,961,038,418 (64.9%)
Black wins:
567,984 (0.0%)
KBBBvKB.json (?)