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Visual mental arithmetic

A mental math puzzle game that feels like play

CornerWISE replaces worksheets with a visual search. You compare numbers, spot arithmetic relationships and connect the right corners before time runs out—or play without a clock and solve at your own pace.

+ − × ÷operations in every board
2distinct game modes
∞fresh random boards

From calculation to pattern recognition

The arithmetic is familiar, but the presentation changes the task. A valid answer is not written after an equals sign: it is already waiting in another corner of the same rectangle.

This makes each round a mixture of mental calculation, visual scanning and logic. CornerWISE is a game, not an intelligence test, and its IQ Points are an in-game progression system rather than a real-world IQ measurement.

Choose a comfortable pace or a demanding challenge

Endless mode removes the time pressure. Timed modes turn each decision into a speed challenge, while 10s+ starts with ten seconds and adds ten seconds for every point earned by a correct line.

Number ranges and board sizes let you keep the arithmetic approachable or create denser boards that demand more careful searching.

Progress without an account

Perfect and near-perfect boards earn in-game IQ Points, advance karate-inspired belt ranks and unlock larger Expert boards. Results are stored locally, and the best results for each setup appear on its own leaderboard.

Free on Android and iOS

Ready to think CornerWISE?

Download the full game and start with a fresh board.