Syzygy endgame tablebases

Black is losing with DTZ 112

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

KQRBNvKR.pgn lichess.org

Histogram: KQRBN winning vs. KR (log scale)

Longest KQRBNvKR phases

KQRBNvKR statistics (unique positions)

White wins:
435,572,550,338 (99.7%)
Frustrated white wins:
57,425 (0.0%)
Draws:
1,140,676,203 (0.3%)
Black wins:
245,871,532 (0.1%)
KQRBNvKR.json (?)