How to play
- Divide the grid into regions. Every cell gets a number.
- Each number tells the size of its region: a 3 sits in a region of three cells, all 3s.
- Two regions of the same size can’t share an edge.
- Blank cells get filled too, and a region can have several numbers or none printed in it.
- Pick a cell and type or tap a number. Drag from a number to copy it into the cells you cross.
Keyboard: arrows to move, 1–9 to write, two digits quickly for 10 and up, Backspace to erase, Ctrl+Z undo, Ctrl+Shift+Z redo.
Learn how to solve it