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  2. The Hardest Logic Puzzle Ever - Wikipedia

    en.wikipedia.org/wiki/The_Hardest_Logic_Puzzle_Ever

    The Hardest Logic Puzzle Ever is a logic puzzle so called by American philosopher and logician George Boolos and published in The Harvard Review of Philosophy in 1996. [ 1 ] [ 2 ] Boolos' article includes multiple ways of solving the problem.

  3. List of impossible puzzles - Wikipedia

    en.wikipedia.org/wiki/List_of_impossible_puzzles

    This is a list of puzzles that cannot be solved. An impossible puzzle is a puzzle that cannot be resolved, either due to lack of sufficient information, or any number of logical impossibilities. Kookrooster maken 23; 15 Puzzle – Slide fifteen numbered tiles into numerical order. It is impossible to solve in half of the starting positions. [1]

  4. Notpron - Wikipedia

    en.wikipedia.org/wiki/Notpron

    It has been named as "the hardest riddle available on the internet". [3] Regarded as one of the first of the online puzzle game genre, Notpron follows a standard puzzle game layout, where the player is presented with a webpage containing a riddle and must find the answer to the riddle in order to proceed to the next webpage.

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  6. Knights and Knaves - Wikipedia

    en.wikipedia.org/wiki/Knights_and_Knaves

    A large class of elementary logical puzzles can be solved using the laws of Boolean algebra and logic truth tables. Familiarity with Boolean algebra and its simplification process will help with understanding the following examples. Alice and Bob are residents of the island of knights and knaves.

  7. 10 Hard Math Problems That Even the Smartest People in the ...

    www.aol.com/10-hard-math-problems-even-150000090...

    Goldbach’s Conjecture. One of the greatest unsolved mysteries in math is also very easy to write. Goldbach’s Conjecture is, “Every even number (greater than two) is the sum of two primes ...

  8. Talk:The Hardest Logic Puzzle Ever - Wikipedia

    en.wikipedia.org/wiki/Talk:The_Hardest_Logic...

    lwr314 (continued) 'The Hardest Logic Puzzle Ever' refers to a puzzle by Boolos! That includes his interpretation. A pile of text on paper is not a puzzle, it is a pile of text on paper. An interpreted pile of text on paper can be a puzzle. Boolos' interpreted his pile of text on paper and that is called `The Hardest Logic Puzzle Ever'.

  9. Maze: Solve the World's Most Challenging Puzzle - Wikipedia

    en.wikipedia.org/wiki/MAZE:_Solve_the_World's...

    Maze: Solve the World's Most Challenging Puzzle (1985, Henry Holt and Company) is a puzzle book written and illustrated by Christopher Manson. The book was originally published as part of a contest to win $10,000. Unlike other puzzle books, each page is involved in solving the book's riddle.