11 2024 档案
摘要:XY-Chains The Y-Wing Chains are infact part of a more encompassing strategy called XY-Chains. The commonality is the same pincer-like attack on candid
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摘要:Rectangle Elimination - SudokuWiki.orgThis is the first novel 'tough' strategy in a long time and replaces Empty Rectangles which I feel is an overly
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