Killer Sudoku level Hard 300 Puzzles – killer su doku, sumdoku, sum doku, sumoku, addoku, samunamupure

Killer Sudoku is a puzzle that combines sudoku and kakuro . Develop your mental arithmetic skills with these hard level puzzles. The objective is to fill the grid with numbers from 1 to 9 in a way that the following conditions are met: Each row, column, and nonet contains each number exactly once. The sum of all numbers in a cage must match the small number printed in its corner. No number appears more than once in a cage. (This is the standard rule for killer sudokus, and implies that no cage can include more than 9 cells.) This book has 300 puzzles and includes solutions provided at the end of the book. It is the ideal gift for puzzle solvers.