Shunt: Unblock Puzzle

Unblock the marked block: slide each piece along its own axis to clear a lane.

A sliding block puzzle where every block is fixed to one direction. The wide ones only travel left and right; the upright ones only up and down. That single constraint is the whole puzzle: to unblock the piece you want, you usually have to move a piece you did not.

One marked block has to reach the gap in the wall. Getting it there means clearing a lane, and clearing a lane means moving something that can only go where something else already sits.

Every board is generated and then measured. The game searches for the shortest solution and shows it as "best", and a level ships only if that number is real, so the target you are chasing is one somebody can actually hit.

No timer, nothing to lose. Drag a block as far as you like: a slide of three squares is one move, not three.