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Syzygy endgame tablebases

Black is losing with DTZ 8

KQRRBvK.pgn lichess.org

Histogram: KQRRB winning vs. K (log scale)

Longest KQRRBvK phases

KQRRBvK statistics

8,045,142,036 (98.1%)
159,753,868 (1.9%)
KQRRBvK.json (?)