1) Cardinals are placed in it 2) Challenge for the numerate 3) Craze of 2005-06 4) Crossword alternative 5) Daily paper logic puzzle 6) Digital challenge 7) Digital game 8) Digital poser 9) Fun with logic 10) Logic game 11) Logic puzzle 12) Logic puzzle in the paper 13) Logic puzzle with numbers 14) Logic-puzzle fad
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https://www.crosswordclues.com/clue/sudoku
1) Fad
Found on
https://www.crosswordclues.com/clue/sudoku
Completed puzzles are always a type of Latin square with an additional constraint on the contents of individual regions. For example, the same single integer may not appear twice in the same row, column or in any of the nine 3×3 subregions of the 9x9 playing board. The puzzle was popularized in 1986 by the Japanese puzzle company Nikoli, under th...
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http://en.wikipedia.org/wiki/Sudoku
popular form of number game. In its simplest and most common configuration, sudoku consists of a 9 9 grid with numbers appearing in some of the ... [1 related articles]
Found on
http://www.britannica.com/eb/a-z/s/180
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