🎯 遊び方
Sudoku Guru is a classic 9×9 Sudoku implementation focused on daily challenges, trophies, and progression tracking that basic Sudoku games often lack. You fill rows, columns, and 3×3 boxes with digits 1–9, each appearing exactly once per unit. Select a cell and fill in a number. The daily challenge resets each day, providing structured progression for regular players. Five difficulty levels, from easy up to guru, accommodate both casual solvers and puzzle enthusiasts.
