Sudoku Jigsaw (also known as " Irregular ", " Nonomino " or " Geometric Sudoku ") is a logic-based, combinatorial number-placement puzzle.
The puzzle books series contain: - 500 Easy Puzzles - Handy 6 x 9 inch Book Layout - 6 Puzzles per Page - Ideal for Beginners The book.
Regular 9x9 Sudoku that row and column rules apply, but instead of a 3x3 grid they are nine Jigsaw shapes.
Jigsaw Sudokus are very similar to regular Sudoku puzzles.
Sudoku Jigsaw (also known as " Irregular ", " Nonomino " or " Geometric Sudoku ") is a logic-based, combinatorial number-placement puzzle