Crack the code · 3 slots

Clues

1. Just like matter heats up from solid → liquid → gas, the three digits in the code go from smallest to biggest (left to right).
2. Every state of matter has an odd digit — all three digits in the code are odd numbers.
3. A solid is colder than a gas — the first digit is smaller than the last digit.
4. There are 3 states of matter, and the three digits in the code add up to 9.
5. The middle state of matter is a liquid — the middle digit of the code is 3.