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[2] A metapuzzle is a puzzle that unites several puzzles that feed into it. For example, five puzzles that had the answers BLACK, HAMMER, FROST, KNIFE, and UNION would lead to the metapuzzle answer JACK, which combines with all of those words to make new words and phrases. A "meta-meta" can exist in larger sets of puzzles, uniting several ...
Crossword-like puzzles, for example Double Diamond Puzzles, appeared in the magazine St. Nicholas, published since 1873. [31] Another crossword puzzle appeared on September 14, 1890, in the Italian magazine Il Secolo Illustrato della Domenica. It was designed by Giuseppe Airoldi and titled "Per passare il tempo" ("To pass the time"). Airoldi's ...
Word ladder (also known as Doublets, [1] word-links, change-the-word puzzles, paragrams, laddergrams, [2] or word golf) is a word game invented by Lewis Carroll. A word ladder puzzle begins with two words, and to solve the puzzle one must find a chain of other words to link the two, in which two adjacent words (that is, words in successive ...
An example is a skillful way in which his terrier Tony opened the garden gate, easily misunderstood as an insightful act by someone seeing the final behavior. Lloyd Morgan, however, had watched and recorded the series of approximations by which the dog had gradually learned the response, and could demonstrate that no insight was required to ...
The terms "Ariadne's thread" and "trial and error" are often used interchangeably, which is not necessarily correct. They have two distinctive differences: "Trial and error" implies that each "trial" yields some particular value to be studied and improved upon, removing "errors" from each iteration to enhance the quality of future trials.
The cutting of the Gordian Knot is a classical example. The term was first used in 1967 by Maltese psychologist Edward de Bono who used the Judgement of Solomon , the Nine Dots Puzzle , and the sewing machine (automating the work rather than adding more workers) as examples, among many others, of lateral thinking.
Raw "trial and error" is best used when only two or three words can potentially fit at a given location; temporarily assume one of the words, and see if an impossible letter combination results. If so, that word is not the one that should go in the grid at that location. [ 3 ]
An acrostic puzzle published in State Magazine in 1986. An acrostic is a type of word puzzle, related somewhat to crossword puzzles, that uses an acrostic form. It typically consists of two parts. The first part is a set of lettered clues, each of which has numbered blanks representing the letters of the answer.