Sudoku
Calm, classic sudoku with five difficulty levels, from relaxed Easy grids to Master puzzles that need X-Wings and Swordfish. Every puzzle has exactly one solution, and the hint button explains the next logical step in one short line. Play the daily challenge to build a streak, track your best times and unlock soothing themes.
Fill the grid so every row, column and 3x3 box holds the numbers 1 to 9 once. Tap a cell, then a number; switch on Notes to pencil in candidates. Stuck? A hint shows the next step and why.
Tap pick a cell, then a number Notes pencil in small candidates Arrows, 1-9, N, Backspace move, fill, notes and erase on desktop
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