Complete
Starter line clear
Complete all three moves and clear a nearly finished row.
Manual input
Manual Block Blast Solver
No screenshot is needed: enter your current 8×8 board and three current pieces, review them, and calculate locally.
Step 1
Mark the filled board cells
Click, tap, or drag to paint. Row 1 is the top row.
Step 2
Enter the three fixed pieces
Choose a preset or draw the exact orientation you see.
Current tray
Piece 1
Choose a preset
Single
Lines
Squares and rectangles
Corners
Draw a custom shape
Current tray
Piece 2
Choose a preset
Single
Lines
Squares and rectangles
Corners
Draw a custom shape
Current tray
Piece 3
Choose a preset
Single
Lines
Squares and rectangles
Corners
Draw a custom shape
Step 3
Choose a strategy and solve
Verified inputs
Try a verified example
Complete
Order matters
See why checking all six piece orders can preserve a complete sequence.
Partial
Honest partial result
Inspect the longest legal prefix when all three pieces cannot fit.
No first move
No legal first move
Verify a tray where none of the three entered pieces fits the current board.
Enter the board and current tray
Tap or click a board cell to mark it filled. On a computer, you can drag across cells or use the keyboard to focus a cell and toggle it. Row 1 is the top row, so enter the board in the same orientation you see on screen.
Enter exactly three current pieces. Pieces stay in their displayed fixed orientation: the solver does not rotate or reflect them automatically.
Presets and 5×5 custom entry
Use a preset when it matches a current piece exactly. Otherwise, draw the piece in its 5×5 editor, preserving its visible top-row orientation. Clear or replace each piece until all three editors match the tray.
Review, then solve
Compare the entered cells and pieces with your current game, then choose Confirm & Solve. That one action validates the 8×8 board and all three pieces before searching for the best legal move sequence.
Read the result honestly
- Complete
- All three current pieces have a legal sequence under the selected strategy.
- Partial
- One or two pieces can be placed, but no sequence places the entire current tray.
- No first move
- None of the three entered pieces fits the board as it is now.
8×8 input boundary
This tool evaluates one clear 8×8 board and the three pieces currently in the tray. It does not model a differently sized layout, future pieces, rotation controls, game scoring rules, or live game state.