Syzygy endgame tablebases

Black is winning with DTZ 2

KQQRRvKR.pgn lichess.org

Histogram: KQQRR losing vs. KR (log scale)

Longest KQQRRvKR phases

KQQRRvKR statistics

377,574,967,702 (99.9%)
238,104,990 (0.1%)
79,553,720 (0.0%)
KQQRRvKR.json (?)