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  2. Four glasses puzzle - Wikipedia

    en.wikipedia.org/wiki/Four_glasses_puzzle

    The puzzle can be generalised to n glasses instead of four. For two glasses it is trivially solved in one turn by inverting either glass. For three glasses there is a two-turn algorithm. For five or more glasses there is no algorithm that guarantees the bell will ring in a finite number of turns. [2]

  3. Missing square puzzle - Wikipedia

    en.wikipedia.org/wiki/Missing_square_puzzle

    The missing square puzzle is an optical illusion used in mathematics classes to help students reason about geometrical figures; or rather to teach them not to reason using figures, but to use only textual descriptions and the axioms of geometry. It depicts two arrangements made of similar shapes in slightly different configurations.

  4. Treasure Mountain! - Wikipedia

    en.wikipedia.org/wiki/Treasure_Mountain!

    In 1997 an updated version of the game was released on CD-ROM (version 2.0 Mac/2.01 Win) with even better graphics. Treasure Mountain! was later released in a software bundle package with both Treasure Cove! and Treasure Galaxy! under the name Treasure Trio!. This was one of the first software bundle packages ever sold. [6]

  5. Nine dots puzzle - Wikipedia

    en.wikipedia.org/wiki/Nine_dots_puzzle

    In the same year, the puzzle also appeared in A. Cyril Pearson's puzzle book. It was there named a charming puzzle and involved nine dots. [5] [2] Both versions of the puzzle thereafter appeared in newspapers. From at least 1908, Loyd's egg-version ran as advertising for Elgin Creamery Co in Washington, DC., renamed to The Elgin Creamery Egg ...

  6. The ClueFinders - Wikipedia

    en.wikipedia.org/wiki/The_ClueFinders

    The ClueFinders is an educational software series aimed at children aged 8–12 that features a group of mystery-solving teenagers. The series was created by The Learning Company (formerly SoftKey) as a counterpart to their Reader Rabbit series for older, elementary-aged students.

  7. Mathematical puzzle - Wikipedia

    en.wikipedia.org/wiki/Mathematical_puzzle

    Mathematical puzzles require mathematics to solve them. Logic puzzles are a common type of mathematical puzzle. Conway's Game of Life and fractals, as two examples, may also be considered mathematical puzzles even though the solver interacts with them only at the beginning by providing a set of initial conditions. After these conditions are set ...

  8. Recreational mathematics - Wikipedia

    en.wikipedia.org/wiki/Recreational_mathematics

    Mathematical puzzles require mathematics in order to solve them. They have specific rules, as do multiplayer games, but mathematical puzzles do not usually involve competition between two or more players. Instead, in order to solve such a puzzle, the solver must find a solution that satisfies the given conditions.

  9. 15 puzzle - Wikipedia

    en.wikipedia.org/wiki/15_puzzle

    To solve the puzzle, the numbers must be rearranged into numerical order from left to right, top to bottom. The 15 puzzle (also called Gem Puzzle, Boss Puzzle, Game of Fifteen, Mystic Square and more) is a sliding puzzle. It has 15 square tiles numbered 1 to 15 in a frame that is 4 tile positions high and 4 tile positions wide, with one ...