Table of Key and Mouse Commands

Selecting the Current Cell for the Keyboard Commands

When using the keyboard, data can only be changed in the highlighted "current cell". To change the current cell, use the movement keys below.

Right arrow or Tab	Move right one cell (see wrapping below)
Left arrow or Shift-Tab	Move left one cell (see wrapping below)
Down arrow	Move down one cell (see wrapping below)
Up arrow	Move up one cell (see wrapping below)
Ctrl-Right Arrow	Move to last cell of current row
Ctrl-Left Arrow	Move to first cell of current row
Ctrl-Down Arrow	Move to bottom of current column
Ctrl-Up Arrow	Move to top of current column
Home	Move to top left cell
End	Move to bottom right cell

→ Wrapping right past the right column moves the cursor to the first column and the next row.

← Wrapping left past the left column moves the cursor to the last column and the previous row.

↓ Wrapping down past the bottom row moves the cursor to the top row and the next column.

↑ Wrapping up past the top row moves the cursor to the bottom row and the previous column.

Action	Mouse	Keyboard
Enter a number in the current cell	Left-click on the small number, even if it is hidden by an existing start number	Type the number
Erase a number in the current cell	Right-click anywhere in the cell	Type a 0 (zero) or space bar

Action	Mouse	Keyboard
Un-solve cell, previous solution becomes Possible	Left-click anywhere in the cell	Any number 1 through 9
Un-solve cell, previous solution becomes Impossible	Right-click anywhere in the cell	Ctrl-(any number 1 through 9)
Un-solve cell, previous solution becomes Unknown	Double-Right-click anywhere in the cell	Ctrl-(any number 1 through 9) typed twice
Un-solve cell, un-mark all small numbers		0 (zero) or space bar
Solve cell with a new number	Double-Left-click on the small number, even if it is hidden by an existing start number	Any number 1 through 9 typed twice

Action	Mouse	Keyboard
Solve	Double-Left-click on the small number	Any number 1 through 9
Mark number Possible	Left-click on the small number	Alt-(any number 1 through 9)
Mark number Impossible	Right-click on the small number	Ctrl-(any number 1 through 9)
Change Possible to Unknown	Left-click on the small number	Alt-(any number 1 through 9)
Change Impossible to Unknown	Right-click on the small number	Ctrl-(any number 1 through 9)
Mark all numbers unknown		0 (zero) or space bar

There is a shortcut key for each strategy.

Strategy	Shortcut Key
Only one unsolved cell in group	U
Basic intersecting groups	I
Linked intersecting groups	L
Mark Conflicts As Impossible	M
Solve cell with only one number possible	C
Solve only cell with number possible in group	G
Box Intersections	B
N-tuplets	N
Hidden N-tuplets	H
Loop Through All Strategies	A