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The Frog

Help Queen Gertrude take on the challenge thrown by the King of toads!

The King of toads challenged Queen Gertrude: she must hop on every stone in her pond, but with a few constraints. Help her succeed!

Finding a path that works for the queen won’t be easy and you’ll have to rack your brain. This puzzle will test your logical reasoning!


  • In this puzzle, Gertrude must hop on every stone in her pond, but with a few constraints. The students will have to use logic to solve this problem.

  • With the puzzle “The Frog,” you can introduce your students to problem-solving with constraints in a fun way.

  • Planning notes