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  2. List of Martin Gardner Mathematical Games columns - Wikipedia

    en.wikipedia.org/wiki/List_of_Martin_Gardner...

    Dr. Matrix, like Mr. Holmes, comes to an untimely and mysterious end 1980 Oct: From counting votes to making votes count: the mathematics of elections 1980 Nov: Taxicab geometry offers a free ride to a non-Euclidean locale 1980 Dec: Patterns in primes are a clue to the strong law of small numbers 1981 Feb: Gauss's congruence theory was mod as ...

  3. Missing square puzzle - Wikipedia

    en.wikipedia.org/wiki/Missing_square_puzzle

    The apparent triangles formed from the figures are 13 units wide and 5 units tall, so it appears that the area should be S = ⁠ 13×5 / 2 ⁠ = 32.5 units. However, the blue triangle has a ratio of 5:2 (=2.5), while the red triangle has the ratio 8:3 (≈2.667), so the apparent combined hypotenuse in each figure is actually bent.

  4. List of abstract strategy games - Wikipedia

    en.wikipedia.org/wiki/List_of_abstract_strategy...

    An abstract strategy game is a board, card or other game where game play does not simulate a real world theme, and a player's decisions affect the outcome.Many abstract strategy games are also combinatorial, i.e. they provide perfect information, and rely on neither physical dexterity nor random elements such as rolling dice or drawing cards or tiles.

  5. Crossword - Wikipedia

    en.wikipedia.org/wiki/Crossword

    An American-style 15×15 crossword grid layout. A crossword (or crossword puzzle) is a word game consisting of a grid of black and white squares, into which solvers enter words or phrases ("entries") crossing each other horizontally ("across") and vertically ("down") according to a set of clues. Each white square is typically filled with one ...

  6. MacMahon Squares - Wikipedia

    en.wikipedia.org/wiki/MacMahon_Squares

    The first part of New Mathematical Diversions describes these games in general, starting with linear forms , then progressing in detail with similar games using tiles shaped as equilateral triangles, squares, right isoceles triangles, cubes, and hexagons. [1]: Part I, 1–49 There are a total of 24 distinct squares for 3 colors.

  7. The New York Times crossword - Wikipedia

    en.wikipedia.org/wiki/The_New_York_Times_crossword

    In another notable Times crossword, 27-year-old Bill Gottlieb proposed to his girlfriend, Emily Mindel, via the crossword puzzle of January 7, 1998, written by noted crossword constructor Bob Klahn. [ 55 ] [ 56 ] The answer to 14-Across, [Microsoft chief, to some] was BILLG, also Gottlieb's name and last initial. 20-Across, [1729 Jonathan Swift ...

  8. 15 Christmas Tree Desserts That Are *Almost* Too Cute to Eat

    www.aol.com/15-christmas-tree-desserts-almost...

    The shape is a giant green triangle after all. So we dug into our archives to find 15 Christmas tree dessert recipes to fit the bill. They range from cookies and cakes to fruit and candy, with ...

  9. Cryptic crossword - Wikipedia

    en.wikipedia.org/wiki/Cryptic_crossword

    A 15x15 lattice-style grid is common for cryptic crosswords. A cryptic crossword is a crossword puzzle in which each clue is a word puzzle. Cryptic crosswords are particularly popular in the United Kingdom, where they originated, [1] as well as Ireland, the Netherlands, and in several Commonwealth nations, including Australia, Canada, India, Kenya, Malta, New Zealand, and South Africa.