Game ends when reaching this many errors (0 = no limit)
Sets the maximum number of errors allowed before the game ends. Set to 0 for unlimited errors.
Puzzle Generation
?
Backtracking: Classic algorithm that guarantees a unique solution. Pattern-Based: Faster generation using mathematical patterns. Hybrid: Combines both methods for variety.
Auto: Automatically matches your system theme Light: Bright theme with dark text Dark: Dark theme with light text
Highlight Related Cells
?
When enabled, highlights cells in the same row, column, and 3x3 box as the selected cell.
Highlight Same Numbers
?
When enabled, highlights all cells containing the same number as the selected cell.
Show Candidates
?
When enabled, shows possible numbers for each empty cell. Useful for advanced solving techniques.
Sound Effects
?
When enabled, plays sound effects for game actions like placing numbers, errors, and hints.
Animations
?
When enabled, shows smooth animations for number placement and UI interactions.
Message Display Time
?
Controls how long success and error messages are displayed before automatically hiding.
📊 Game Statistics
Clear Statistics
Are you sure you want to clear all your game statistics? This action cannot be undone.
Welcome to Cojoro Sudoku!
Sudoku is a logic-based number placement puzzle. The objective is to fill a 9×9 grid with digits so that each column, each row, and each of the nine 3×3 subgrids contain all of the digits from 1 to 9.
Welcome to Cojoro Sudoku!
Sudoku is a logic-based number placement puzzle. Fill a 9×9 grid so that each row, column, and 3×3 subgrid contains all digits from 1 to 9. Choose a difficulty to start playing!