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  2. Playfair cipher - Wikipedia

    en.wikipedia.org/wiki/Playfair_cipher

    Playfair cipher. The Playfair cipher uses a 5×5 grid of letters, and encrypts a message by breaking the text into pairs of letters and swapping them according to their positions in a rectangle within that grid: "HI" becomes "BM". The Playfair cipher or Playfair square or Wheatstone–Playfair cipher is a manual symmetric encryption technique ...

  3. Wikipedia:Tools/Editing tools - Wikipedia

    en.wikipedia.org/wiki/Wikipedia:Tools/Editing_tools

    Although is not a visual editor, it offers the possibility to test offline most of your code in your default web browser. This tests simulate the behavior that would show the wiki code in a Wikipedia page. The installer may be downloaded free from the Offline MediaWiki Code Editor site.

  4. Crossword - Wikipedia

    en.wikipedia.org/wiki/Crossword

    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 letter, while the black squares are used to ...

  5. Nonogram - Wikipedia

    en.wikipedia.org/wiki/Nonogram

    Nonogram. Nonograms, also known as Hanjie, Paint by Numbers, Picross, Griddlers, and Pic-a-Pix, are picture logic puzzles in which cells in a grid must be colored or left blank according to numbers at the edges of the grid to reveal a hidden picture. In this puzzle, the numbers are a form of discrete tomography that measures how many unbroken ...

  6. Crosswordese - Wikipedia

    en.wikipedia.org/wiki/Crosswordese

    Crosswordese is the group of words frequently found in US crossword puzzles but seldom found in everyday conversation. The words are usually short, three to five letters, with letter combinations which crossword constructors find useful in the creation of crossword puzzles, such as words that start and/or end with vowels, abbreviations consisting entirely of consonants, unusual combinations of ...

  7. Henry Hook (crossword constructor) - Wikipedia

    en.wikipedia.org/wiki/Henry_Hook_(crossword...

    Matt Gaffney, the crossword constructor for Slate.com, described meeting Hook as being like "meeting Elvis", [7] while Will Shortz called him "ingenious, (and) a truly brilliant puzzlemaker." [ 8 ] Crossword editor and historian Ben Tausig, in his 2013 The Curious History of the Crossword , described Hook as "an under-recognized, polarizing ...

  8. Crossword Puzzles Better for Improving Memory - Healthline

    www.healthline.com/health-news/crossword-puzzles...

    Experts say crossword puzzles tend to require more cognitive effort than other games. Bianca Loðbrók/Stocksy. For people with mild cognitive impairment, stimulating mental tasks can slow the ...

  9. Wordle - Wikipedia

    en.wikipedia.org/wiki/Wordle

    Wordle is a web-based word game created and developed by Welsh software engineer Josh Wardle. Players have six attempts to guess a five-letter word, with feedback given for each guess in the form of coloured tiles indicating when letters match or occupy the correct position. Wordle has a single daily solution, with all players attempting to ...