Sudoku is a logic-based number puzzle played on a 9x9 grid, divided into nine 3x3 subgrids. The goal is to fill the grid so that each row, column, and 3x3 box contains the numbers 1 through 9 exactly ...

Some games and puzzles have rules that are quickly learned, but still present a challenge. They become immensely popular. Free Cell, the solitaire game, is an example. Sudoku is another. Never heard ...

Mention Sudoku and the image that forms in one’s mind is possibly that of a senior citizen pondering over a section of the newspaper, armed with a pencil and a cup of tea or coffee. While that might ...