Logic Puzzle: The Four-Digit Lock
- Francis
- Jun 29
- 1 min read
Updated: Jul 9
Look at the image and answer the question.
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Comment the correct answer with an explanation.
The student who comments the right answer first will be declared the winner!
The Supremescentre student with the most correct answers will receive a prize in January 2026.
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4602
4602
Daniel is the winner. The correct answer is:
Clue 1: 6821 → 6 (pos 2) correct
Clue 2: 6143 → 4 (pos 1) correct but in wrong place → we have it in pos 1
Clue 3: 2067 → 0 & 2 correct but wrongly placed → fits
Clue 4: 7381 → none are in final code
Clue 5: 3801 → 0 in pos 3 is correct
🎉 Final Answer: 4602 ✅
6861
6821