Catalogues

Seven cards. One hidden rule.

Catalogues puzzle 195

Solve Catalogues puzzle 195, a fixed hard list: seven cards, one hidden ordering rule, five guesses.

PUZZLE 195 · Hard

Put these in order

Seven hydrocarbons

5 guesses left– of 7 in place0:00
  1. Octane
  2. Butane
  3. Nonane
  4. Pentane
  5. Decane
  6. Heptane
  7. Ethane

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