A friend passes you a note with the following strange image.
She’s recently been interested in topology, the study of structures which can be morphed from one to another without cutting or tearing, such as the donut and coffee cup shown above. Can you decode the number pairs by finding five groups of topologically-equivalent letters? Try writing each group in alphabetical order on the corresponding rows of the grid…
Like in the example above, MaPP puzzles are fun challenges which get students learning and using advanced mathematics and problem-solving skills.
MaPP open-sources its game books for use by anyone under a Creative Commons license. PDFs of previous High School Challenge game books are available at the following links.