Welcome to Precision Sudoku! Unlike other Sudoku games, Precision Sudoku lets you choose the exact techniques required to solve each puzzle. This approach helps you learn and practice specific methods, moving beyond arbitrary difficulty levels that can vary in meaning.
How to Play
Select a number (1-9) at the bottom of the screen.
Tap cells to eliminate that number as a candidate.
When only one number remains in a cell, it will automatically be solved with that number. This action is irreversible to discourage guessing.
Alternatively, long-press (one second) on a cell to eliminate all numbers except the selected one, instantly solving the cell.