Syzygy endgame tablebases

Black is losing with DTZ 18

KQRRvKBN.pgn lichess.org

Histogram: KQRR winning vs. KBN (log scale)

Longest KQRRvKBN phases

KQRRvKBN statistics (unique positions)

White wins:
428,755,760,318 (99.6%)
Draws:
1,630,533,898 (0.4%)
Black wins:
14,783,486 (0.0%)
KQRRvKBN.json (?)