Logicus

Logicus Help

Unlock the secrets of deduction and improve your reasoning.

The goal is to cross-reference the provided clues to discover the exact relationship between all items. The golden rule is: each item connects with only ONE other item in each category. For example, if Mary has a dog, John cannot have the dog, and Mary cannot have the cat.

  • Right: Use when you are certain that two items are related. The game is smart: when marking a "✓", it automatically fills the entire remaining row and column of that quadrant with "X", saving you time.
  • False: Use to eliminate possibilities. If a clue says "The teacher does not drive the blue car", mark the intersection between Teacher and Blue with an "X". By filling in the "X"s, the correct options will be isolated by elimination.

In the official mobile app, the free mode allows you to play a limited number of daily matches and occasionally watch short videos to continue playing. This helps keep the server running. You can "pay with your time" to have fun and exercise your mind!

Being a Premium Logicus is for true masters of deduction. We completely remove limited lives and video ads. In addition, you unlock the Creation Mode, where our artificial intelligence engine creates logic challenges based on your own custom themes and names!
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