Seven cards. One hidden rule.

Catalogues puzzle 171

Solve Catalogues puzzle 171, a fixed hard list: seven cards, one hidden ordering rule, five guesses.

PUZZLE 171 · Hard

Put these in order

Seven space missions

5 guesses left– of 7 in place0:00
  1. Sputnik 1
  2. First Space Shuttle flight
  3. Galileo Jupiter orbiter
  4. Apollo 11
  5. Mars Pathfinder
  6. James Webb Space Telescope
  7. Mariner 4

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