Sudoku Fiendish
How do Sudoku setters set Sudokus?
It must be computer generated. But some are cleverer than others (and make more money at it – eg the guy in The Daily Telegraph). Is it simply the reverse of solving a sudoku, encoded? (Fiendish is no problem with logic.) Or is it more sophisticated than that?
I just finished a computer programming class in which we had to make a 9 x 9 Sudoku puzzle. It basically boils down to randomly filling in a row and then checking three conditions:
row, col, and subgrid violations. If the row doesn’t violate any of these requirements, then it’s a good row and you move down to generate the next row. If the row is bad, then you regenerate another random row.
It was actually a lot of fun for me. I was learning C++
“Guayaquil – better than anticipated” Garygapyear’s photos around Guayaquil, Ecuador
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SudokuT-shirt – Japanese Oni Mask Version BASED UPON THE JAPANESE ONI THEATRICAL MASK, THIS SUDOKU FIEND TSHIRT IS PERFECT FOR THE SUDOKU PLAYER THAT JUST CAN’T LEAVE SUDOKU ALONE. DESIGNED BY A SUDOKU PLAYER FOR SUDOKU PLAYERS, THIS SHIRT MAKES A PERFECT GIFT…. |
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Sudoku Genius: 144 of the Most Fiendish Puzzles Ever Devised $4.39 “Are you ready for the 9 Circles of Sudoku Hell?” Includes a Master Class in Advanced Strategies. “Most Sudoku books have puzzles from easy to hard; this book contains all difficult puzzles, taking you through the nine “circles” of Sudoku Hell. The levels are Daunting, Tortuous, Merciless, Harrowing, Horrific, Maddening, Murderous, Devastating, and Deadly. The introduction contains a very brief ex… |
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New York Post Fiendish Sudoku: The Official Utterly Addictive Number-Placing Puzzle $3.25 200 New Puzzles — From Fiendish to Super Fiendish Su Doku, “the crossword without words,” comes with a warning: it is seriously addictive. You don’t need to be a mathematical genius to solve these puzzles; it is simply a question of logic and a little patience. … |
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