Infinity Matchstick Quiz

The puzzles never run out — a fresh one every time. No timer. Big, clear numbers at your own pace.

Infinity Matchstick Quiz is a puzzle you can keep playing: an equation is wrong, and you fix it by moving matchsticks.

• The puzzles never run out Every puzzle is made the moment you play, so there is always a fresh one. Nothing is pre-packed, and you cannot reach the end.

• Big, clear numbers at your own pace Large digits, strong contrast, and no timer — nothing hurries you. Choose from three text sizes. A gentle practice round teaches the rules, and a hint is there if you get stuck.

How to play An equation is laid out in matchsticks and it does not add up. Move the given number of sticks so that it does. It is played with digits alone, so no reading is required.

For anyone who likes numbers or puzzles, and for a daily bit of thinking. Any age.