About Bridge Builder

Bridge Builder is an adding puzzle. The river gap is a certain width; tap planks whose lengths add up to exactly that width so the car can drive across. Too short and the car falls in; too long and it won't fit. Ten rivers per game.

How to play

1. Read how wide the gap is.
2. Tap planks that add up to exactly that number.
3. Watch the car cross!

Tips

Planks can be used more than once: 4 + 4 = 8.