Sudoku techniques and strategies, explained

by Heloise Stanton

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Oct 30, 2026 Education & Learning

game-techniques learning puzzle-solving strategies sudoku

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I play sudoku most days, and the apps I kept trying had two problems: ads between puzzles, and "hints" that simply fill in a cell, so you never learn why. So I built Sudoku Mori, natively in Swift, on my own: - A hint first points to where to look, then explains why the number fits; you decide whether to place it - Eight short lessons cover the techniques the hints use, from single candidates to X-Wing - Three daily puzzles, and a forest that grows a tree for each day you solve - Layou...