Unblock
Slide wooden blocks along their grain to clear a path for the red block in 22 sliding block puzzles, each with a par move count and three stars to earn.
Unblock is a tactile sliding block puzzle set on a warm wooden tray. Every level is a six by six board packed with long and short planks, and each plank can only travel along its own grain: horizontal pieces slide left and right, vertical pieces slide up and down. Your job is to shuffle them out of the way so the red block can glide through the exit on the right edge, and the satisfying knock of wood on wood tells you when a piece hits something.
The 22 levels were generated and checked by a solver, so every one is solvable and has a known optimal par, starting at a single move and climbing to boards that need more than twenty. Finish in par moves for three stars, stay close for two, or simply escape for one. Solving a board unlocks the next, your best move count is saved, and the level select lets you go back to chase perfect ratings. When you get stuck, the Hint button runs the solver on your current position and outlines the best next slide, though a hinted solve caps that level at two stars.
This traffic jam style logic game suits anyone who enjoys calm, untimed brain teasers. Tip: work backwards from the exit and ask which piece blocks the red block, then what blocks that piece.
How to play
Drag a block along its grain to slide it; horizontal blocks move left and right, vertical blocks move up and down. Clear a path so the red block can slide out of the exit on the right side. Each slide counts as one move. Finish at or under par for three stars; your total stars are your score. Use Undo, Restart or Hint whenever you need them.
Controls
- Mouse / touch drag: Slide a block along its grain
- Tab / Q / E: Select another block
- Arrow keys / WASD: Move the selected block
- Z / Backspace: Undo
- H: Show a hint
- R: Restart the level
- L: Level select
- Space / Enter: Start, or go to the next level
- P / Esc: Pause
- M: Mute sound
Category: Puzzle games
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