Deduction
Hidden key
Deduce a numeric key using clues for exact and misplaced digits.
Daily challenge · 4 difficultiesToday · daily challengeLogic pastime
Hidden key
Exact: correct digit in the right position.
Misplaced: correct digit in another position.
Easy · 4 digits · no repeats · 10 attempts
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Tap a cell and enter a digit.
Discover the secret numeric key.
Exact: correct digit in the correct position.
Misplaced: digit present in the key but in another position.
Easy does not allow repeated digits. In Medium, Hard, and Very hard, digits may repeat.
Example: secret key
→ 2 exact and 1 misplaced.
2548 · you try 2345→ 2 exact and 1 misplaced.