Unblock
How to play
- Drag a block along its own axis — horizontal blocks move left/right, vertical blocks move up/down.
- Blocks stop against the walls and against each other; they cannot turn or jump.
- Clear a path so the red block can slide out through the gap on the right edge.
- Solve each level in as few moves as you can — every level has a known best.
Strategy & tips
- Work backwards from the exit: find what is directly blocking the red block, then what blocks that.
- A vertical block only helps when it slides fully clear of the red block’s row — half-way is still in the way.
- Do not shuffle blindly; each move should open a specific block’s path, not just rearrange the jam.
- Corner and edge blocks have the least freedom — plan their one useful move early.
- If you are stuck, Undo back a few moves and try freeing a different blocker first.
FAQ
How do you win at Unblock?
Slide the other blocks out of the way until the red block has a clear path, then slide it out through the gap on the right edge.
Which way can blocks move?
Only along their own length. A horizontal block slides left and right; a vertical block slides up and down. They never rotate.
How many levels are there?
There are 27 hand-made levels, verified solvable, from 2-move warm-ups up to a 25-move expert. Your best move count per level is saved locally.
Is it free and account-free?
Yes. Unblock plays free in your browser with no download and no sign-up.
Does it work on mobile?
Yes. Drag blocks with your finger, or tap a block then tap where it should go. The board scales to fit any screen.