Hardest Sudoku Puzzle Ever Online

Could this be the toughest sudoku puzzle ever devised. Can you solve the hardest ever sudoku. Number cruncher dr arto inkala has created this new challenge to rival the ai escargot grid he drew up in 2006 widely regarded as the.

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A calcudoku is similar to a killer sudoku except that 1 any operation can be used to compute the result of a cage not only addition 2 the puzzle can be any square size and 3 the sudoku rule of requiring the numbers 1 9 in each 3 3 set of cells does not apply.

Hardest sudoku puzzle ever online. On the difficulty scale by which most sudoku grids are graded with one star signifying the simplist and five stars the hardest this puzzle would score an eleven he explained. Try to solve it yourself then watch the absolutely thrilling way to crack the code. The world s hardest killer sudoku. You can read about making this puzzle even harder on the physics arxiv blog.

Our solver uses human logic to solve the daily puzzles so our single step help function shows the next easiest square to fill. Sudoku solver solving the hardest puzzles. Identified in the same way as the killer sudoku presented in this article the hardest calcudoku was a 9 9 puzzle published on april 2 2013 which only 9 6 of the regular puzzlers at calcudoku. The miracle sudoku may be the hardest puzzle ever.

73 of african americans said they did not have. Expert sudoku is a game for experienced sudoku players with a very high level of difficulty. Now the bbc is getting in on the act with a show that s a mixture of sudoku and a general knowledge quiz. The worlds hardest sudoku puzzle for those of us that never tire of a well made sudoku challenge finnish mathematician arto inkala has made what he claims is the hardest sudoku puzzle ever.

According to the finnish puzzle maker i called the puzzle ai escargot because it looks like a snail. Boolos called it the hardest logic puzzle ever. The hardest calcudoku puzzle. A killer sudoku is very similar to a sudoku except that the clues are given as groups of cells the sum of the numbers in those cells.

It was invented by japanese math teacher tetsuya miyamoto who called it kashikoku naru. By alon harish june 29 2012 arto inkala a finnish mathematician designed this sudoku puzzle which he claims is the hardest sudoku yet. This hardest sudoku puzzle is characterized by the fact that only a few numbers are shown in the sudoku square which consists of 9 small squares where the cells are located 3x3. The original article can be downloaded here.