This is the maximum number of cell centres that are allowed to be collinear on any line in the plane.
By default the collinearity limit = 3, but you can change it to whatever you like between 1 and 5.
Click on the empty bordering cells shaded green to expand your polyomino.
See how far you can get before the collinearity limit stops you going any further.
Cells shaded red are off limits and selecting them will show you why.
As well the undo undo button
you can tap existing cells to remove them.
However, some cells are not removable as breaking the polyomino into 2 is not allowed.
Attempts to remove them are rejected with a flash of red.
| square hexagon | Toggle between square and hexagonal polyominoes contexts.
The pattern you create and the collinearity limit is not lost when switch between them. |
| mop | Sweep away this rubbish and start again. |
| undo redo | Undo and Redo |
n |
Size of polyomino. |
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more_vert
3
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Change the collinearity limit. |
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dark_mode
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Toggle the light/dark theme. |