Authors: Florentin Smarandache
Sudoku is a game with numbers, formed by a square with the side of 9, and on each row and column are placed the digits 1, 2, 3, 4, 5, 6, 7, 8, 9, written only one time; the square is subdivided in 9 smaller squares with the side of 3x3, which, also, must satisfy the same condition, i.e. each square to contain all digits from 1 to 9 written only once.
Comments: 3 pages.
[v1] 13 Mar 2010
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