Check if any cell has more than one possible value.Remove the occurrences of the ‘n’ unique values from remaining cell’s possible’s list in that row / column / 3×3 grid.All possible values in those ‘n’ cells are exactly ‘n’ unique values.Check if any row, column or 3×3 block has ‘n’ cells such that, (n>1) This difficult sudoku board was designed to challenge even the most experienced sudoku solvers and is considered by many to be the worlds most difficult sudoku puzzle.The file is unlocked, so if you are curious, go around and poke the code.Īnd if you are interested in writing your own sudoku solver, here is a basic algorithm: It has macros, so enable them when you download the file. He is kind enough to let me share this with all of you.Ĭlick here to download the sudoku solver workbook. So naturally I jumped with joy when I saw Sanjay’s excel macro for solving sudoku. A Finnish mathematician claims to have designed the worlds most difficult Sudoku. I am a huge sudoku fan and I solve sudoku whenever I have few minutes to kill. Sudoku is a very effective way to keep your brain cells ticking. In this article, we will learn how to solve the sudoku puzzle on the basis. Each of the 9 rows, columns and 3×3 blocks should be filled in such a way that they have all the numbers from 1 to 9. Add new json value for show/hide download button. Sudoku is a very famous number based puzzle with a 9×9 grid of cells. In his spare time he wrote a small VBA macro to solve Sudoku. To quote the author of the puzzle: 'Normal sudoku puzzle logic eliminates the. There is nothing to suggest that this is the singular hardest puzzle in existence, however, its still a pretty dern difficult puzzle. Sanjay, my colleague is an avid programmer and excel enthusiast. The claim that this is the worlds hardest sudoku puzzle was actually made by the author, and popularized by the media.
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