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helen filimonova

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Can you replace the question mark with a number? MATH PUZZLE: Can you replace the question mark with a number?
Can you replace the question mark with a number? MATH PUZZLE: Can you replace the question mark with a number?
Find the right combination The computer chose a secret code (sequence of 4 digits from 1 to 6). Your goal is to find that code. Black circles indicate the number of hits on the right spot. White circles indicate the number of hits on the wrong spot.

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