Syzygy endgame tablebases

Black is losing with DTZ 58

KQRRRvKR.pgn lichess.org

Histogram: KQRRR winning vs. KR (log scale)

Longest KQRRRvKR phases

KQRRRvKR statistics (unique positions)

White wins:
395,968,576,671 (99.9%)
Draws:
279,471,717 (0.1%)
Black wins:
132,841,782 (0.0%)
KQRRRvKR.json (?)