Syzygy endgame tablebases

White is winning with DTZ 134

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

KQRBvKQQ.pgn lichess.org

Histogram: KQRB winning vs. KQQ (log scale)

Longest KQRBvKQQ phases

KQRBvKQQ statistics (unique positions)

White wins:
126,709,477,461 (38.9%)
Frustrated white wins:
695,088 (0.0%)
Draws:
54,830,957,268 (16.8%)
Frustrated black wins:
46,460 (0.0%)
Black wins:
144,062,421,509 (44.2%)
KQRBvKQQ.json (?)