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A topological problem with a fresh twist, and eight other new recreational puzzles 1972 May: Challenging chess tasks for puzzle buffs and answers to the recreational problems 1972 Jun: A miscellany of transcendental problems: simple to state but not at all easy to solve 1972 Jul: Amazing mathematical card tricks that do not require prestidigitation
For instance, with 100 gold pieces and 500 pirates, pirates #500 through #457 die, and then #456 survives (as 456 = 200 + 2 8) as they have the 128 guaranteed self-preservation votes of pirates #329 through #456, plus 100 votes from the pirates they bribe, making up the 228 votes that they need. The numbers of pirates past #200 who can ...
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 or end with vowels (or both), abbreviations consisting entirely of consonants, unusual ...
Crossword-like puzzles, for example Double Diamond Puzzles, appeared in the magazine St. Nicholas, published since 1873. [32] 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 ...
The Wason selection task (or four-card problem) is a logic puzzle devised by Peter Cathcart Wason in 1966. [1] [2] [3] It is one of the most famous tasks in the study of deductive reasoning. [4] An example of the puzzle is: You are shown a set of four cards placed on a table, each of which has a number on one side and a color on the other.
Cryptic crosswords often use abbreviations to clue individual letters or short fragments of the overall solution. These include: ... is the dictionary primarily used ...
Logic and rationality have each been taken as fundamental concepts in philosophy. They are not the same thing. They are not the same thing. Philosophical rationalism in its most extreme form is the doctrine that knowledge can ultimately be founded on pure reason, while logicism is the doctrine that mathematical concepts, among others, are ...
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 ...