![]() ![]() However, there are many sudoku experts and enthusiasts who have attempted to solve incredibly difficult puzzles and it is likely that someone has solved the world’s hardest sudoku at some point. There is no definitive answer to this question as there is no official record of the world’s hardest sudoku puzzle. The best solution is to force checkmate in a few moves with White. The win was confirmed by championship director Jan Zverina.Ĭhess puzzles are much more difficult than Sudoku because there are so many possibilities. China’s Wang Shiyao broke her own world record for solving a 9×9 sudoku grid in 54.44 seconds at the World Super Puzzle Championship in Prague on Wednesday, setting a new mark for a game. This article was published on April 8, 2011. Here are some well-formed rank-3 Sudoku puzzles, with 17 givens. The type of logical reasoning described during our discussion of solving strategies for an Sudoku puzzle may not be applicable in this situation. The puzzle that comes out of well-formed Sudoku puzzles is unique in its approach to solving them. As of June 2019, the Guinness World Record for the fastest time to solve the world’s hardest Sudoku puzzle is 7.36 seconds, set by Feliks Zemdegs of Australia. Each row, column, and 3×3 subgrid must contain the digits 1 through 9. ![]() The world’s hardest Sudoku puzzle is a 9×9 grid with 81 cells, and its solved state is shown in the picture. The objective is to fill a 9×9 grid with digits so that each column, each row, and each of the nine 3×3 subgrids that compose the grid contains all of the digits from 1 to 9. Sudoku is a logic-based, combinatorial number-placement puzzle. ![]()
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