Syzygy endgame tablebases

Black is losing with DTZ 144

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

KQQNvKQB.pgn lichess.org

Histogram: KQQN winning vs. KQB (log scale)

Longest KQQNvKQB phases

KQQNvKQB statistics (unique positions)

White wins:
267,740,261,762 (75.3%)
Frustrated white wins:
17,426 (0.0%)
Draws:
81,153,858,581 (22.8%)
Black wins:
6,814,112,499 (1.9%)
KQQNvKQB.json (?)