| 12345678910111213141516 |
- Keen
- <p>
- Fill in the grid with digits from 1 to the grid size, so that every
- digit appears exactly once in each row and column, and so that all
- the arithmetic clues are satisfied (i.e. the clue number in each
- thick box should be possible to construct from the digits in the box
- using the specified arithmetic operation).
- <p>
- To place a number, click in a square to select it, then type the
- number on the keyboard. To erase a number, click to select a square
- and then press Backspace.
- <p>
- Right-click in a square and then type a number to add or remove the
- number as a pencil mark, indicating numbers that you think
- <em>might</em> go in that square.
|
