Players take turns drawing a single line between two neighbouring dots. Whenever your line completes the fourth side of a box, you claim that box in your colour — and you get another go. When every line has been drawn, whoever has scored the most wins. The trick is to avoid drawing the third side of a box, which would hand your opponent an easy claim.
Our twist scatters special boxes across the grid: some are worth double or triple points, and a few are star boxes — claim one and you also snatch a box from your opponent. It swings the game right to the end. Choose a grid size, and play the computer on Easy, Normal or Hard, or pass the phone for two.
How many players? One against the CPU, or two sharing a phone.
What are the controls? Tap the gap between two dots to draw that line.
Does it need signal? No. Once the page has loaded once, it works fully offline.