Adults Puzzles Book. 200 Kakuro and 200 Chain Sudoku. Very Hard Levels.

Holmes is a book of logical sudoku puzzles of very difficult levels. This is what sudoku collection is for. Fitness for the brain. The Kakuro levels are 17x17 + 18x18 + 19x19 + 20x20. Chain sudoku 9x9 levels very hard. A chain of Sudoku puzzles with the names: "Sudoku Girus", "Strymko". Book for superior mental support. In addition, there are links to download 500 puzzles. I hope you enjoy this book. Best Regards, Basford Holmes