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Syzygy endgame tablebases

Invalid position

The given position is not a legal chess position.

Histogram: KRB losing vs. KQ (log scale)

Longest KRBvKQ phases

KRBvKQ statistics

29,695,298 (21.3%)
51,508,182 (37.0%)
58,011,918 (41.7%)
KRBvKQ.json (?)