Syzygy endgame tablebases

White is winning with DTZ 1

KQRRBvKR.pgn lichess.org

Histogram: KQRRB winning vs. KR (log scale)

Longest KQRRBvKR phases

KQRRBvKR statistics (unique positions)

White wins:
412,945,276,488 (99.9%)
Frustrated white wins:
17,698 (0.0%)
Draws:
342,892,724 (0.1%)
Black wins:
163,760,354 (0.0%)
KQRRBvKR.json (?)