GridMewBuild your board. Find the next step.
Create your own cat placement puzzle, check it, and get a hint or solution.
- 1. Set size
- 2. Draw regions
- 3. Add marks
- 4. Check & solve
Choose a region and click cells to paint. Arrow keys move focus, Space uses the selected tool, X marks a cell. Each region must be connected.
What the solver can tell you
It distinguishes an invalid board, no solution, more than one solution, a unique solution, and a search that has not finished. A unique answer stays hidden until you choose to reveal it. A hint is offered only when a supported logical rule explains a step.
Screenshot support
Best results come from upright, evenly spaced square grids with flat, visibly different region colors. Choose the grid size, crop tightly to the board and check the prefilled regions. Similar colors, heavy markings, shadows or missing edges can confuse sampling. Edit regions and marks manually before solving. No particular third-party app or screenshot style is guaranteed.