Drag cars out of the way to clear a path for the red car to drive to the exit. Cars can move forwards and reverse but can't turn or move to their sides.

These traffic jams can get pretty tricky. Sometimes you'll have to move a car one way to dislodge another car, and then move it back again. If you get stuck, tap the left and right buttons to undo or redo your last move. You can also tap the hint button to see the next correct move, but you won't be eligible to get any star ranking on this level once you use a hint.

When you finish the level, you can get a Bronze, Silver or Gold Star.

Bronze Star: Solve the stage without using the hint or back button.

Silver Star: Solve the stage in less than a set number of moves.

Gold Star: Solve the stage in the minimum number of moves possible.

How to play Gridlock on your phone

To play Gridlock easily any time, you can add it directly to your phone as an app. It’s a great way to play without worrying about losing your game save data.

For iOS devices, simply tap the "Share" icon in Safari and select "Add to Home Screen". For Android devices, tap the “Menu” icon and select "Install App".