Supported Grid Sizes
Any size from 4×4 to 15×15! Square or rectangle - we support them all.
How to Use Custom Grids
Open Manual Input
Go to blockblastsolver.com and click the "Manual Input" button to reveal the grid controls.
Adjust Grid Dimensions
Use the + and − buttons next to "Rows" and "Cols" to set your desired grid size. Range: 4 to 15 for both dimensions.
Grid Updates Instantly
The grid recreates automatically with your new dimensions. No "Apply" button needed! Your preference is saved to your browser for next time.
Fill Your Grid & Solve
Click cells to mark filled spaces (red) or empty (green). Add your figures below the grid (use the +/− buttons to adjust how many). Click "Solve Manual Input" and get instant solutions!
More Than 3 Figures? No Problem
Some Block Blast variants and challenge modes give you more than the standard 3 pieces. Our solver now supports 1 to 6 figures at once, so you can solve any scenario.
The classic Block Blast experience with 3 pieces per turn.
Extra pieces for challenge rounds and special events.
The maximum for complex scenarios and advanced planning.
How to Change the Number of Figures
In the Figures Input section, use the + and − buttons next to "Figures" to add or remove piece slots. Your preference is saved automatically.
Ready to Try Custom Grids?
Start solving puzzles of any size right now - it's free!
Frequently Asked Questions
Q: What's the minimum and maximum grid size?
A: You can create grids from 4×4 (minimum) up to 15×15 (maximum). Both square and rectangular grids are supported.
Q: Will my grid size preference be saved?
A: Yes! Your preferred dimensions are automatically saved to your browser's local storage and will be loaded next time you visit.
Q: Can I upload screenshots of custom-sized grids?
A: Currently, screenshot upload works best with standard 8×8 grids. For custom sizes, we recommend using the manual input feature for best results.
Q: Does this work on mobile?
A: Absolutely! The custom grid feature is fully responsive and works perfectly on all devices - phones, tablets, and desktops.
Q: Can I solve with more than 3 figures?
A: Yes! You can use 1 to 6 figures. Use the +/− buttons next to "Figures" in the manual input section. Your preference is saved automatically for next time.
Q: Does the solver slow down with more figures?
A: The solver explores more possibilities with extra figures, but it uses a smart time-budgeted search to always return the best solution it can find within seconds.