y-wing
(idiomatic) To abide by the rules or conventions. / (idiomatic) To stand at one's mark before a footrace.
(sudoku) A three-cell combination in a sudoku grid which allows the elimination of a candidate in a fourth cell.
conversion into a glass
(philosophy) A philosophical razor which states that what cannot be settled by experiment is not worth debating.
角にある3つのマスの組み合わせによって別のマスの候補を消し、数独を完成させた。
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DiQt
Free
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