Syzygy endgame tablebases

White is losing with DTZ 134

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

KBBNvKQB.pgn lichess.org

Histogram: KBBN losing vs. KQB (log scale)

Longest KBBNvKQB phases

KBBNvKQB statistics (unique positions)

White wins:
39,188,173,717 (8.6%)
Draws:
69,811,945,429 (15.4%)
Frustrated black wins:
1,333,799,362 (0.3%)
Black wins:
343,479,784,632 (75.7%)
KBBNvKQB.json (?)