Number Route by BrainiLab

About the game

Keep four numbers in order and choose three operators to reach a target. Evaluate each operation from left to right; division must produce a whole number. Ten routes per round, with guided practice. Free browser play with English instructions and no account or download needed. Developed with Codex assistance and human direction. The constraint is to keep every number in order. Each operator changes a running total, so the route is evaluated strictly from left to right rather than with standard operator precedence. Guided practice explains this rule before an Anytime round. This is a small arithmetic puzzle for short browser sessions. The playable link opens the original BrainiLab page. Feedback on whether the calculation rule is clear is welcome.