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On August 2, the BBC's program guide Radio Times featured a weekly Super Sudoku with a 16×16 grid. In the United States, the first newspaper to publish a Sudoku puzzle by Wayne Gould was The Conway Daily Sun (New Hampshire), in 2004. The world's first live TV Sudoku show, held on July 1, 2005, Sky One
Terminology and grid layout. A Sudoku (i.e. the puzzle) is a partially completed grid. A grid has 9 rows, 9 columns and 9 boxes, each having 9 cells (81 total). Boxes can also be called blocks or regions. [1] Three horizontally adjacent blocks are a band, and three vertically adjacent blocks are a stack. [2]
Mathematical context. The general problem of solving Sudoku puzzles on n2 × n2 grids of n × n blocks is known to be NP-complete. [8] A puzzle can be expressed as a graph coloring problem. [9] The aim is to construct a 9-coloring of a particular graph, given a partial 9-coloring. The Sudoku graph has 81 vertices, one vertex for each cell.
The smallest (and unique up to rotation and reflection) non-trivial case of a magic square, order 3. In mathematics, especially historical and recreational mathematics, a square array of numbers, usually positive integers, is called a magic square if the sums of the numbers in each row, each column, and both main diagonals are the same.
Killer sudoku (also killer su doku, sumdoku, sum doku, sumoku, addoku, or samunamupure) is a puzzle that combines elements of sudoku and kakuro. Despite the name, the simpler killer sudokus can be easier to solve than regular sudokus, depending on the solver's skill at mental arithmetic; the hardest ones, however, can take hours to solve.
The Green Bay Packers won the first two Super Bowls, and also won the NFL Championship Game the preceding year. If the Super Bowl had been instituted that year, the Packers would have qualified and faced the Buffalo Bills of the AFL. The Miami Dolphins appeared in three consecutive Super Bowls (VI, VII, and VIII) – winning the last two.
Sudoku solving algorithms. A typical Sudoku puzzle. A standard Sudoku contains 81 cells, in a 9×9 grid, and has 9 boxes, each box being the intersection of the first, middle, or last 3 rows, and the first, middle, or last 3 columns. Each cell may contain a number from one to nine, and each number can only occur once in each row, column, and box.
The following 3 files are in this category, out of 3 total. Star Burst Leo Chart.JPG 913 × 663; 185 KB. Sudoku with nine empty groups 02.JPG 360 × 314; 32 KB. SudokuLive2.jpg 365 × 273; 23 KB. Categories: