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Syzygy endgame tablebases

White is winning with DTZ 9

KRRRBvK.pgn lichess.org

Histogram: KRRRB winning vs. K (log scale)

Longest KRRRBvK phases

KRRRBvK statistics

8,540,417,868 (98.9%)
95,911,830 (1.1%)
KRRRBvK.json (?)