Fork me on GitHub

Syzygy endgame tablebases

White is winning with DTZ 109

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

KQRRvKQ.pgn lichess.org

Histogram: KQRR winning vs. KQ (log scale)

Longest KQRRvKQ phases

KQRRvKQ statistics

5,931,284,019 (90.5%)
9,022 (0.0%)
556,533,096 (8.5%)
63,650,763 (1.0%)
KQRRvKQ.json (?)