Seven cards. One hidden rule.
Catalogues puzzle 21
Solve Catalogues puzzle 21, a fixed hard list: seven cards, one hidden ordering rule, five guesses.
PUZZLE 21 · Hard
Put these in order
Seven chemical elements
5 guesses left– of 7 in place0:00
- Copper
- Iodine
- Sulfur
- Tin
- Titanium
- Neon
- Calcium
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