8/31/2023 0 Comments 6x6 killer sudoku![]() Terminology Cell A single square that contains one number in the grid Row A horizontal line of 9 cells Column A vertical line of 9 cells Nonet A 3×3 grid of cells, as outlined by the bolder lines in the diagram above also called a box Cage The grouping of cells denoted by a dotted line or by individual colours. Other puzzle-makers may produce entirely asymmetrical puzzles. This is a matter of aesthetics, though, rather than obligatory: many Japanese puzzle-makers will make small deviations from perfect symmetry for the sake of improving the puzzle. ![]() Traditionally, as with regular sudoku puzzles, the grid layout is symmetrical around a diagonal, horizontal or vertical axis, or a quarter or half turn about the centre. Killer sudoku puzzles were already an established variant of sudoku in Japan by the mid 1990s, where they were known as "samunamupure." The name stemmed from a Japanized form of the English words "sum number place." Killer sudokus were introduced to most of the English-speaking world by The Times in 2005. More often, puzzles are printed in black and white, with thin dotted lines used to outline the "cages" (see below for terminology). 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.Ī typical problem is shown on the right, using colors to define the groups of cells. Killer sudoku (also killer su doku, sumdoku, sum doku, sumoku, addoku, or samunamupure) is a puzzle that combines elements of sudoku and kakuro. The same example problem, as it would be printed in black and white.
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