About This Tool
Block Blast Solver is a free online tool that finds the optimal piece placement for the Block Blast puzzle game. Input your current 8×8 or 10×10 board by scanning a screenshot or tapping cells manually, add the 3 available pieces from the shape library, and the solver instantly calculates the best move sequence to maximize line clears and boost your score. No download, no sign-up — runs entirely in your browser.
How to Use
Board tab: tap "Scan Screenshot" to auto-detect your grid from a phone screenshot, or tap cells manually to mark filled blocks. Supports 8×8 and 10×10 grids.
Blocks tab: select each of the 3 upcoming pieces shown in your game by tapping a slot then choosing the matching shape from the library.
Tap "Find Best Moves" — the solver tests all piece orderings and placements, then shows a step-by-step guide on the Solve tab with a ghost overlay showing exactly where to drop each piece.
Frequently Asked Questions
What is Block Blast?
Block Blast is a popular mobile puzzle game where you drag blocks onto a grid to fill complete rows and columns. Completed lines clear from the board, earning points. The game ends when no more pieces can be placed. It combines elements of Tetris and Sudoku into an addictive casual puzzle format.
What is the best strategy for Block Blast?
The key to a high score in Block Blast is planning multi-line clears — filling a row and column simultaneously earns bonus points. Prioritise keeping the board clear rather than filling random gaps. Always think 2–3 pieces ahead, and place pieces so future drops have room to complete lines. This solver automates that analysis for you.
How do you clear lines faster in Block Blast?
Focus on rows or columns that are already 6–7 cells filled and need only 1–2 more blocks to complete. Avoid scattering pieces in isolated spots that create holes. The solver scores every possible placement and highlights moves that trigger immediate or chain line clears.
Does the Block Blast solver work for 8×8 and 10×10 grids?
Yes. Use the size toggle on the Board tab to switch between 8×8 and 10×10. The scan feature auto-detects the grid size from your screenshot. The solving algorithm adapts to whichever size you select.
How does the Block Blast solver algorithm work?
The solver uses beam search — it tries all 6 possible orderings of your 3 pieces, and for each ordering tests every valid board position. A scoring function rewards line clears and penalises filling cells that block future moves. The top solution sequences are kept at each step, giving near-optimal results in milliseconds.
Is this Block Blast helper free?
Yes, completely free. The solver runs entirely in your browser with no server calls, no account required, and no ads interfering with the tool. Your board data never leaves your device.
Can I use this on mobile while playing Block Blast?
Yes. The interface is designed mobile-first. Take a screenshot in Block Blast, switch to this page in your browser, tap "Scan Screenshot", and your camera roll or screenshot will be loaded and analysed. The step-by-step solution fits a phone screen so you can follow along move by move.