No. Each vehicle is locked to its own axis for the whole level, and that restriction is the entire source of difficulty.

Is there a time limit?

No. Levels are pure logic problems with everything visible from the start, so you can think as long as you like.

Does the move count matter?

Levels have a known minimum solution, so solving efficiently earns a better rating. Simply reaching the exit is enough to progress.

Gridlock — Traffic Unblock Puzzle

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Gridlock — Traffic Unblock Puzzle

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Puzzle•Canvas2D•ADVYRA MEDIA

About Gridlock — Traffic Unblock Puzzle

Gridlock is a sliding block puzzle in the tradition of Rush Hour. Your car is trapped in a grid of other vehicles, each of which can only move along its own axis, and you have to clear a path to the exit. Nothing is hidden and nothing is timed, so a level is a pure logic problem: the solution is fully visible from the first second and still not obvious. The constraint that makes it work is directional. Horizontal vehicles move only horizontally and vertical ones only vertically, so freeing a space is never a matter of moving the blocking vehicle out of the way directly. It usually requires moving two or three other vehicles first to create room for the one that is actually in your path. That chain of prerequisites is where the difficulty lives, and it grows quickly with grid size. The best way to approach a hard level is backwards. Ask what has to be true for your car to reach the exit, then what has to move to make that possible, rather than pushing vehicles around looking for progress. Levels are rated by minimum move count, so there is a second layer for anyone who wants to solve efficiently rather than merely solve.

How to Play Gridlock — Traffic Unblock Puzzle

1Drag a vehicle to slide it along its own axis.
2Horizontal vehicles move only left and right; vertical ones only up and down.
3Vehicles cannot pass through each other or leave the grid.
4Clear a path so your car can reach the exit on the edge of the board.
5Solve in as few moves as possible for the best rating.

Controls

Input	Action
`Mouse Click / Touch & Drag`	Slide Vehicle
`R / Reset Button`	Restart Current Puzzle

Tips & Strategy

Work backwards. Identify what is blocking the exit, then what is blocking that, rather than moving vehicles at random.
The vehicle in your way is rarely the one to move first. Make room for it before you try to shift it.
Long vehicles have the fewest legal positions, so place them deliberately and early.
If you are stuck, undo several moves rather than one. Bad states usually originate a few moves back.

Frequently Asked Questions

Can vehicles turn?: No. Each vehicle is locked to its own axis for the whole level, and that restriction is the entire source of difficulty.
Is there a time limit?: No. Levels are pure logic problems with everything visible from the start, so you can think as long as you like.
Does the move count matter?: Levels have a known minimum solution, so solving efficiently earns a better rating. Simply reaching the exit is enough to progress.