What puzzle is harder than sudoku?

What puzzle is harder than sudoku?

What puzzle is harder than sudoku?

A Calcudoku
Calcudoku
KenKen and KenDoku are trademarked names for a style of arithmetic and logic puzzle invented in 2004 by Japanese math teacher Tetsuya Miyamoto, who intended the puzzles to be an instruction-free method of training the brain. The name derives from the Japanese word for cleverness (賢, ken, kashiko(i)).
https://en.wikipedia.org › wiki › KenKen
KenKen - Wikipedia
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.

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  • 2024-03-21 23:01:48
Show all Q/A Info

Are there sudoku puzzles that cannot be solved?
Realistically, no! There are 6,670,903,752,021,072,936,960 possible solvable Sudoku grids that yield a unique result (that's 6 sextillion, 670 quintillion, 903 quadrillion, 752 trillion, 21 billion, 72 million, 936 thousand, 960 in case you were wondering). That's way more than the number of stars in the universe.
2024-02-14 22:50:24


Are sudoku puzzles unique?
The short answer is no.
While people commonly think that Sudokus can only have one unique solution, any puzzle with seven or fewer starting clues must mathematically have multiple solutions. This is because in these Sudoku puzzles there cannot be a clue for every digit from 1 to 9 in the initial clue.
2024-01-18 15:31:47


What is a sudoku puzzle with a 4x4?
There are many different sudoku variations. 4x4 sudoku is one of them. It has four rows, four columns and four boxes where the classic version has nine rows, nine columns and nine boxes. The 4x4 version is often called "sudoku for kids" because they are much simpler puzzles to solve.
2023-09-23 07:14:49


What makes sudoku harder?
It is the number of logic decisions, their redundancy and their complexity which determines how hard the puzzle is going to be.
2023-04-09 07:51:08