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HELLO
Sudoku Rules
Each row must contain the numbers 1-9, without repetition.
Each column must contain the numbers 1-9, without repetition.
Each 3x3 sub-grid must contain the numbers 1-9, without repetition.
Keyboard Instructions
Press and/or hold
(1-9)
or these keys to input numbers:
q
w
e
a
s
d
z
x
c
n
- Toggle notes mode.
u
- Undo a move.
Backspace
- Clear a square.
hjkl (vim)
or
arrow keys
- Move around the board.
Shift
- Temporarily toggle notes mode when held down.
Meta key (⌘ Mac / ⊞ Win) + click
- Select multiple squares for adding notes.