- Read the target number.
- Select exactly two tiles.
- Their values must add to the target.
- You have three attempts; swap either tile to revise a pair.
- Start a new target for another round.
Target-number puzzles have long been used in classrooms and puzzle books to make mental arithmetic playful. The well-known Countdown numbers game uses the same search-for-a-sum idea.
Tiles and targets are generated in the browser. Nothing is saved remotely.
