Block Architect

1. Drag a piece from the tray onto the board. It snaps to the grid where it fits.
2. Rotate or mirror the selected piece before placing it. Some levels forbid mirroring.
3. Pieces may not overlap or cover the dark gaps of the board.
4. Tap a placed piece to return it to the tray.

1. Fill the shape. Cover every board cell with the pieces from the tray.
2. Drag and drop. Drag a piece onto the board. A green outline means it fits; red means it does not.
3. Turn it. Rotate or mirror a piece in the tray to find the orientation that fits.

• Drag pieces with mouse or touch
• Select a piece, then use the arrow keys and Enter to place it
• R or E to rotate, F to mirror
• Z to undo, Y to redo

Every level is generated and verified by an exact-cover solver before you see it. Easy boards use four or five small pieces, hard boards use up to ten pieces on irregular shapes.

Is Block Architect free to play?

Yes. Block Architect is free in the browser with no account, no download and no ads. Your progress is saved on your device.

How do you play Block Architect?

Drag a piece from the tray onto the board. It snaps to the grid where it fits. Rotate or mirror the selected piece before placing it. Some levels forbid mirroring. Pieces may not overlap or cover the dark gaps of the board. Tap a placed piece to return it to the tray.

How do the levels and difficulty work in Block Architect?

Every level is generated and verified by an exact-cover solver before you see it. Easy boards use four or five small pieces, hard boards use up to ten pieces on irregular shapes.

Can I play Block Architect on my phone or tablet?

Yes. Block Architect works in any modern browser on phones, tablets and computers, with touch, mouse and keyboard controls.

Is there a daily Block Architect puzzle?

Yes. Every day there is a new daily puzzle, the same for every player, alongside unlimited numbered levels.