Sudoku Jigsaw: Sudoku Jigsaw: 200 Medium Puzzles 10x10 vol. 14 (Paperback)

Sudoku Puzzle is a grid with 10 squares deep and 10 squares wide. In each square you need to enter numbers from 1 to 10. The meaning of the puzzle: use the number in each row, column and 5x2 block only once.

Also the puzzle may contain the regions of random (irregular) shape; this variant is called Jigsaw Sudoku ("Geometry Sudoku", "Geometry Number Place", "Irregular Sudoku", "Kikagaku Nanpure").