How to use the Block Blast solver
Tap the occupied squares on the 8×8 grid, select one to three shapes from the library, match your game's rotation rules and press Find best move. Place your block on the + cells; the dashed outlines show full rows and columns that will disappear. Apply move updates this board and removes the used shape, so you can solve again for your remaining pieces.
Make room for the next block
Block Blast is a block puzzle about fitting shapes into an 8×8 board and completing horizontal or vertical lines. A row and column can clear together at their intersection, opening space for larger pieces such as a 3×3 square. This Block Blast solver compares every legal placement of your selected shapes, prioritizing line clears, then fewer enclosed empty cells and disconnected regions, and finally placements near edges and corners. The recommendation is a heuristic for your next move: it cannot know future blocks or guarantee a high score.
| Board | 8×8, with occupied or empty cells |
|---|---|
| Shapes | 1–3 selected pieces; lines, squares, rectangles, corners, L, J, T, S and Z blocks |
| Rotation | Optional; each distinct quarter-turn is checked |
| Result | One recommended placement, plus the rows and columns it clears |
| Calculation | Free, in your browser, with no upload or account |
Block Blast solver questions
Does this solver plan all three pieces?
It checks every legal next placement for each selected shape and recommends one move. It prioritizes clearing rows and columns, then fewer holes and fragments, then edges and corners. It does not guarantee that all three pieces will fit or predict future pieces.
Can I rotate the blocks?
The solver can check all four rotations. Turn off Allow rotations if your game uses fixed shapes, and use Rotate in your tray to match their orientation before solving.
Why is there no suggested move?
No selected shape fits the copied board with your rotation setting. Check the occupied cells and the shapes in your tray. A board with an already full row or column must be corrected before solving.
Is the Block Blast solver free?
Yes. It runs in your browser with no account or download. Your board and selected shapes are not sent to a server.
Play Block Blast in your browser
Looking for Block Blast unblocked? Try our free browser block puzzle and practice clearing lines.
Play Block Blast