Syzygy endgame tablebases

Black is losing with DTZ 106

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

KQRvKNN.pgn lichess.org

Histogram: KQR winning vs. KNN (log scale)

Longest KQRvKNN phases

KQRvKNN statistics (unique positions)

White wins:
7,194,047,631 (86.7%)
Frustrated white wins:
77,498 (0.0%)
Draws:
1,105,764,819 (13.3%)
Black wins:
290,472 (0.0%)
KQRvKNN.json (?)