UNBLOCK ME
Slide the blocks. Clear the exit. Beat your best score.
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Unblock Me — Free Online Sliding Block Puzzle
Unblock Me is Game CMB's original take on the classic sliding-block puzzle genre. Move the colored blocks out of the way, horizontally or vertically, to clear a path for the red block and slide it through the exit. It takes seconds to learn and gets genuinely difficult by the later levels — every one of the 64 built-in levels is verified solvable with a breadth-first search solver, so if a level feels impossible, it isn't; keep looking for the sequence that opens the path.
Tips to improve your score
Your score rewards solving in as close to the optimal move count as possible, so slow down and look for a shorter path before dragging blocks around at random. Time matters too, but accuracy matters more: a slow perfect solve usually beats a fast sloppy one. Come back daily for the Daily Challenge — everyone gets the exact same puzzle, so it's a fair way to compare your solving speed against the rest of the leaderboard.