Sudoku Logica

Choose a difficulty and start a puzzle. Fill each row, column, and 3x3 box with digits 1 to 9 without repeating numbers. Tap a cell to enter a number, or switch to notes to pencil in candidates. Apply logic techniques such as singles, pairs, and scanning to deduce the next move. Use the hint button for a step by step explanation when you are stuck. Finish the grid to set a time, build your streak, and unlock tougher challenges.