What's a Jigsaw Sudoku Puzzle?
Jigsaw Sudoku, also known as Irregular Sudoku, is a puzzle that combines the familiar Sudoku grid with irregularly shaped regions. Instead of the usual 9x9 grid divided into nine 3x3 boxes, in Jigsaw Sudoku, the regions are unique and vary in shape. This adds an extra layer of challenge and creativity to the puzzle-solving experience.