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How-to and techniques

Solving techniques for 4×4, 6×6 and 9×9 grids, logic puzzle rules, brain game habits and casual puzzle gaming on iPhone and iPad.

How-to and techniques
Solve 6x6 grid puzzle without guessing, one step at a time
Learn to solve 6x6 grid puzzle without guessing: check each 2x3 region, row and column, and cross out digits until every cell has one answer. Laura Bennett · November 2, 2026 · 4 min read