Documentation
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Overview ¶
Package interstrats provides strategies for handling candidate removal thanks to intersections, these are also called pointing pairs/triples and box line reductions.
Index ¶
Constants ¶
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Variables ¶
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Functions ¶
func BoxLineReduction ¶
BoxLineReduction is the dual strategy to pointing pairs/triples, it looks for rows/columns where all available locations for a digit are limited to a single box, and removes all other candidate locations of that digit from that box. If a change was made, it returns true, otherwise false.
func PointingSets ¶
PointingSets is the strategy for handling pointing pairs/triples. It iterates over the boxes, and for each box checks digits 1-9 first for row pointers, then for column pointers. It returns true as soon as one pointing set forces a change, and false if no change is forced. Note: A pointing pair/triple occurs when all candidates for where to place a digit in a given box occur in the same row or in the same column. In that case, we can remove the digit from the rest of the row/column.
Types ¶
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Source Files