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Facts About sudoku hard - hard sudoku Revealed

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Quads tend to be rarer, they usually’re a lot less useful in a means considering that they don’t let you narrow down a large number of candidates all at once, however, if you spot 1, it’s really worth investigating. Fixing single squares might also transform quads into triples or pairs, https://thomass642jmq4.mappywiki.com/user

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