BrainTilt
Killer Sudoku

To enter a number:

Left-click in the desired square and choose a number from the popup keypad

-or-

Point to the desired square and press a number key on the keyboard

 

To clear a number:

Left-click in the desired square and choose 'x' from the popup keypad

-or-

Point to the desired square and press the space key on the keyboard

 

To create a pencil mark:

Right-click in the desired square and choose a number from the popup keypad

(For single-button mice, hold SHIFT or CTRL while clicking)

-or-

Point to the desired square and press a number key while holding SHIFT

Time
0
Finished!
4
11
20
7
11
3
12
15
12
12
20
12
11
10
7
11
18
14
8
12
7
13
17
13
9
3
11
16
9
13
13
4
19
12
3
13
123
456
789
 × 
Starting in 5