Q&A for those who create, solve, and study puzzles

Q&A for those who create, solve, and study puzzles

Puzzling Stack Exchange is a site for puzzle-makers and puzzle enthusiasts of all levels. If you have a question about... Creating or improving puzzles A specific method of solving a type of …

Jan 26, 2024 · The D'Agapeyeff cipher is an as-yet unbroken cipher that appears in the first edition of "Codes and Ciphers", an elementary book on cryptography published by the …

Sep 18, 2019 · I had no problems with solving first 32 questions from http://test.mensa.no but the last 3 questions are totally bugging me out even knowing the answers. Could anyone ...

Puzzling Stack Exchange is a question and answer site for those who create, solve, and study puzzles. It's built and run by you as part of the Stack Exchange network of Q&A sites. With …

5 days ago · A puzzle related to mathematical facts and objects, whose solution needs mathematical arguments. General mathematics questions are off-topic but can be asked on …

Sep 3, 2014 · You are a prisoner in a room with 2 doors and 2 guards. One of the doors will guide you to freedom and behind the other is a hangman–you don't know which is which, but the …

5 days ago · Thanks for contributing an answer to Puzzling Stack Exchange! Asking for help, clarification, or responding to other answers. Making statements based on opinion; back them …

This is the second in a series of Unsolved Mysteries posts. These posts explore current unsolved real-world puzzles. Since these have been unsolved for years, it's uncertain whether anyone …