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.

KQQBNvKQ.pgn lichess.org

Histogram: KQQBN winning vs. KQ (log scale)

Longest KQQBNvKQ phases

KQQBNvKQ statistics (unique positions)

White wins:
357,686,825,865 (97.4%)
Frustrated white wins:
40,856 (0.0%)
Draws:
8,510,062,807 (2.3%)
Black wins:
867,557,132 (0.2%)
KQQBNvKQ.json (?)