Syzygy endgame tablebases

Black is losing with DTZ 12

KQRBBvKB.pgn lichess.org

Histogram: KQRBB winning vs. KB (log scale)

Longest KQRBBvKB phases

KQRBBvKB statistics (unique positions)

White wins:
450,440,472,556 (99.9%)
Draws:
260,147,276 (0.1%)
Black wins:
5,251,970 (0.0%)
KQRBBvKB.json (?)