Fiammo: Matchstick Puzzle

A wrong equation made of matchsticks. Move exactly one match and make it true. 400 puzzles, no ads, no account, works offline.

A wrong equation, made of matchsticks. Move exactly one match and make it true.

That is the whole game. No timer, no lives, no pressure — just you and a small, stubborn puzzle.

HOW TO PLAY

• Drag a matchstick onto an empty outline, or tap the match and then tap the outline
• You may move one match, and one only
• Digits are seven-segment shapes, so a 6 becomes an 8 with a single stick
• The + and − signs are made of matches too, and the hardest puzzles hide right there

400 PUZZLES, RATED HONESTLY Every puzzle is built from a true equation and checked by a solver before it appears, so a solution always exists. Difficulty is measured rather than guessed: how many solutions there are, whether the operator has to change, and whether the match must travel between digits. Four levels, from a gentle start to genuinely hard.

FOUND A DIFFERENT ANSWER? IT COUNTS Fiammo checks your move with a solver instead of a fixed answer key. If your solution is valid, the puzzle accepts it, even when it is not the one we had in mind.

STUCK A hint first shows which match to move, then where it goes. You earn a hint for every four puzzles you solve.

BUILT TO BE QUIET No ads. No account. No sign-up. No tracking. Nothing is sent anywhere: the whole game runs on your device and works in aeroplane mode. Progress can optionally sync through your own private iCloud, which we cannot read.

FIAMMO PRO Unlimited hints and every puzzle. Available as a weekly or yearly subscription, or as a one-time lifetime purchase.

Subscriptions renew automatically at the price shown in the app unless cancelled at least 24 hours before the end of the current period. Payment is charged to your Apple Account on confirmation. You can manage or cancel in your Apple Account settings; deleting the app does not cancel a subscription.

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