Precompute board color coordinates - #25
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Store a fixed reverse index from each SquareColor to its CoordSet so board construction and repeated region lookups avoid full-board scans. A repeated 500-sample Criterion comparison against origin/main measures the BoardConstruction cases 28.9% faster for LinkedIn1 and 7.1% faster for GameOfCrowns1.
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Store a fixed reverse index from each SquareColor to its CoordSet so board construction and repeated region lookups avoid full-board scans.
A repeated 500-sample Criterion comparison against origin/main measures the BoardConstruction cases 28.9% faster for LinkedIn1 and 7.1% faster for GameOfCrowns1.