45 rule killer sudoku

2020-01-19 18:22

One of the most interesting rules that comes into killer sudoku is called the rule of 45. This tells you that the total sum of the numbers in each row, column and 3x3 box is 45. That is calculated quite simply as the sum of and results from the fact that each region (there are 27 regions in a 9x9 killer sudoku) must containAn unsolved killer sudoku puzzle. Note the color cages, and the sum for each cage. The concrete rules of killer sudoku are as thus: Fill all rows, columns and 3x3 region with numbers exactly like in regular sudoku. Every cell is a part of a cage, indicated by colors. Make sure the cells can be 45 rule killer sudoku

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This Killer Sudoku contains another example of the multiple 45 rule, using three columns. In the first, second and third columns (highlighted in Fig. 2), all cages lie completely inside, with the exception of the 13 cage. The total of all squares in three columns is 45 3 135. The 45 Rule. Another important strategy, which forms the basis for many others, is the 45 Rule. At its heart is the rule, from Sudoku, that each row, column and nonet must contain the 45 rule killer sudoku Rule of 45 Each sudoku region (i. e. , row, column, or nonet) contains the digits one through nine. Thus, each sudoku region has a total value of 45. If S is the sum of all the cages contained entirely in a region, then the cells not covered must sum to 45S. Rule of K The Ruleofk is an extension of the Ruleof1.

The Rule of 45 Another rule that can be used to solve killer sudokus is called the rule of 45. Sometimes you have to use this rule to make progress without guessing in killer sudoku, at other times it just speeds up the finding of numbers that will eventually be revealed by other logical methods. 45 rule killer sudoku Aug 31, 2019 This video describes a useful technique for helping to solve killer sudoku puzzles that is called the rule of 45. The rule uses the fact that the numbers in each region of a 9x9 killer sudoku must Rules for Greater Than Killer Sudoku The rules for Killer Sudoku apply. If there is a or, between to cages, then the sum of the values in the cages must obey the relationship specified. Rules for Greater Than Sudoku The rules for regular sudoku apply. The 45 rule is a basic solvingtechnique in Killer Sudoku. Each house (row, column, nonet) must add to 45 (the sum of the digits 1 through 9). If a set of cages fits nearly exactly into one or more houses, then the contents of the leftover cells may be deduced from the difference between the sum of the cages and 45 times the number of houses.

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