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University of Cambridge

University of Cambridge: Nrich: Konigsberg Plus

For Students 9th - 10th
See if you can solve this classic problem that Leonhard Euler first presented in 1736. Use the interactive section of this website to help you.
Interactive
University of Cambridge

University of Cambridge: Nrich: Game Khun Phaen Escapes to Freedom

For Students Pre-K - 1st
This interactive game is based on a famous character in a Thai legend. See if you can figure out how he escaped! You will have to use your problem solving and spatial relationship skills to figure out this one.