súdoch
Súdoch, also known as Sudoku, is a popular logic-based number-placement puzzle. The objective is to fill a 9x9 grid with digits so that each column, each row, and each of the nine 3x3 subgrids that compose the grid contain all of the digits from 1 to 9. The puzzle is created by giving the player a partially completed grid, which for a well-posed puzzle, has a single solution.
The puzzle was invented by Howard Garns in 1979, but it gained widespread popularity in Japan in
Sudoku puzzles come in various difficulties, ranging from easy to extremely challenging. The difficulty of a
Sudoku can be played on paper, using a computer, or on mobile devices. There are numerous variations
The puzzle's popularity can be attributed to its simplicity, accessibility, and the satisfaction of solving it.