Crack the Code: Number Lock Puzzles

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Crack the Code: Number Lock Puzzles, by Elyas Oulma. Printed puzzle book in English. Read the edition details and check availability on Amazon.

Can you crack the secret code? Every puzzle hides a secret code of different digits. Each clue is a wrong guess with three simple picture hints: a filled circle means a digit is right and in the right spot, a half circle means a digit is right but in the wrong spot, and a cross means nothing matches. Cross out what cannot be true, follow the trail of hints, and deduce the one and only answer. • 240+ pure-logic deduction puzzles, no guessing required • Three levels that grow from 3-digit to 5-digit codes • Every puzzle has exactly one answer, provable by elimination • Picture hints work in black and white — no color needed • Full solutions at the back Part of the Crack the Code for Kids series — real reasoning, screen-free.

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