Number Route by BrainiLab

What it is

Number Route is a free browser number puzzle from BrainiLab. Each round contains ten routes. A guided practice explains its unusual calculation rule. Play does not require an account or download; instructions are in English. Developed with Codex assistance and human creative direction.

How to play

Keep the four numbers in their displayed order and choose three operators to reach the target. Evaluate each operation strictly from left to right. Every division must give a whole-number result. Try the guided practice first to see the calculation order.