Silent Logic

Silent Logic is a calm logic puzzle with no ads, no lives, and no forced waiting. 303 hand-made levels.

You place cats on a board so that they follow the rules. On every board, cats must meet the row, column, and coloured region targets, and they must not touch one another. New rules join in as you go: fences, numbered fish, dogs, directional fish. Six mechanics unlock gradually; they are not all piled on you in the first level.

303 LEVELS
It starts with introductory boards and grows to 8×8. Levels are arranged one by one, and each has a single solution.

NO ADS, NO LIVES, NO FORCED WAITING
You never watch an ad between levels. You do not run out of lives and wait for them to refill. You decide when and how long to play.

MISTAKES ARE NOT EXPENSIVE
When you place a cat in the wrong square, you do not have to rebuild the board. "Rescue" first removes the placements that break a rule; if there is no solution left along that path, it rewinds as many recent moves as needed. The cats you placed correctly stay where they are. You can also undo moves one by one, or ask for a hint when you are stuck.

COLOUR IS NEVER THE ONLY SIGNAL
The region palette was chosen with colour blindness in mind: the smallest colour difference between neighbouring regions was calculated for deuteranopia and protanopia as well as for normal vision. Region borders are also drawn with a dark outline, so the board reads even if you cannot tell the colours apart. Cats that break a rule are marked with a frame, not with colour.

NO INTERNET, NO DATA COLLECTION
The game works completely offline. Your progress is stored only on your device. You are not asked to create an account. There is no advertising network, no analytics tool, and no third-party SDK.

SETTINGS
You can turn the sound off. The "reduce animations" option stops all motion and also follows your device's own reduce-motion setting.