Keyboard Controls

• WASD or arrow keys for keyboard movement
• Shift+d to move in the direction (d) by a block [Try Shift+W for example]
• Space to enter pencil mode on a cell
• 1-9 to pen a digit
• Shift+n to pen a digit (n) out of pencil mode [Try Shift+1 for example, while in pencil mode]
• Tab to toggle a cells permenancy
• Ctrl+Tab to toggle all cells permenancy
• Escape to clear a cell
• Backspace to clear the board
• Ctrl+Z to undo
• Alt+Z to undo to beginning
• Ctrl+N to generate a new puzzle
• Ctrl+V to paste a puzzle from your clipboard
• Ctrl+R to retry, removing all non-permenant cells
• Enter to clear markings and automatically solve
• Shift+Enter to solve from the current board
• Ctrl+Enter instant solve

Demos

Sharing with Copy-Paste

Fast Puzzle Generation

Solving Sudokus