Write a number in every blank square of the grid. When the grid is full, every orthogonally connected group of identical numbers should have an area equal to that number: so 1s always appear alone, 2s in pairs, and so on.
To place a number, click the mouse in a blank square to select it, then type the number you want on the keyboard. You can also drag to select multiple squares, and then type a number to place it in all of them. To erase numbers, select one or more squares in the same way and then press Backspace.
- 9×7 grid
- 13×9 grid
- 17×13 grid
- Custom width/height grid
Below is a short tutorial showing you how to download and compile the latest source code for this game, and the other 38 games in the puzzle collection. The tutorial takes place in Linux, using the Ubuntu 17.10 distribution, but the procedure will be the same, or very similar, for other Linux distributions. If you find the tutorial helpful, please give the video a like and subscribe to our YouTube channel.
|Besides the main 3 operating system, the puzzle collection has also been ported by contributors to Palm, Android, Symbian 60, iPhone, iPad, and the Windows Store.
Developer: Simon Tatham, Richard Boulton, James Harvey, Mike Pinna, Jonas Kölker, Dariusz Olszewski, Michael Schierl, Lambros Lambrou, Bernd Schmidt, Steffen Bauer, Lennard Sprong, and Rogier Goossens