Sudoku Coach

Patterns

Examples

How to play

Use the arrow keys or mouse to select cells. Enter entries directly, switch to notes for small candidate marks, and use hints or pattern pages when you want coaching.

Keyboard shortcuts

Arrow keys
Move the selected cell
1-9
Enter a digit or toggle a note
Space
Switch between entry and notes
Backspace, Delete, 0
Clear the selected cell
Ctrl/⌘ Z
Undo
Ctrl/⌘ Shift Z, Ctrl/⌘ Y
Redo