Syzygy endgame tablebases

Black is losing with DTZ 64

KQRRNvKR.pgn lichess.org

Histogram: KQRRN winning vs. KR (log scale)

Longest KQRRNvKR phases

KQRRNvKR statistics (unique positions)

White wins:
419,983,478,377 (99.9%)
Draws:
361,221,881 (0.1%)
Black wins:
212,104,620 (0.1%)
KQRRNvKR.json (?)