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1. The Linear Frog (solipsys.co.uk) 2 points by RiderOfGiraffes to puzzle 131 days ago | discuss 2. Powers of Two in Lexicographic Order (solipsys.co.uk) 3 points by RiderOfGiraffes to math puzzle on July 28, 2019 | 1 comment 3. Parallelogram Puzzle (solipsys.co.uk) by RiderOfGiraffes to puzzle math on April 2, 2020 | discuss 4. Wrapping Up Wrapping Up The Earth (solipsys.co.uk) 2 points by RiderOfGiraffes to math puzzle on March 10, 2019 | discuss 5. The "Wrapping The Earth" Problem (solipsys.co.uk) 2 points by RiderOfGiraffes to math puzzle on Feb 19, 2019 | discuss 6. Description of the LCS35 Time Capsule Crypto-Puzzle by Ronald L. Rivest (1999) (mit.edu) by rain1 to cryptography time.capsule puzzle on April 29, 2019 | discuss 7. What do you get when you photocopy a mirror - and *why* ?? (solipsys.co.uk) by RiderOfGiraffes to math science puzzle on March 29, 2019 | 7 comments 8. The Other Wrapping The Earth Problem (solipsys.co.uk) by RiderOfGiraffes to math puzzle on Feb 27, 2019 | discuss

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