Syzygy endgame tablebases

Black is losing with DTZ 304

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

KQNvKRR.pgn lichess.org

Histogram: KQN winning vs. KRR (log scale)

Longest KQNvKRR phases

KQNvKRR statistics (unique positions)

White wins:
3,634,587,016 (48.0%)
Frustrated white wins:
296,625,405 (3.9%)
Draws:
1,902,659,202 (25.1%)
Black wins:
1,741,043,091 (23.0%)
KQNvKRR.json (?)