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Syzygy endgame tablebases

White is winning with DTZ 21

KQBBvKR.pgn lichess.org

Histogram: KQBB winning vs. KR (log scale)

Longest KQBBvKR phases

KQBBvKR statistics

6,942,204,698 (88.0%)
938,466,778 (11.9%)
5,828,272 (0.1%)
KQBBvKR.json (?)