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The smart Trick of sudoku hard - hard sudoku That Nobody is Discussing

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Quads tend to be rarer, and they’re a lot less beneficial in a method because they don’t Allow you to slim down a lot of candidates all of sudden, but if you see just one, it’s worth investigating. Solving single squares could also convert quads into triples or pairs, so https://walti422cir8.bmswiki.com/user

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