Download or read book Killer Sudoku: 200 Expert Puzzles 6x6 Vol. 4 written by Valentyna Uvarova and published by . This book was released on 2020-05-27 with total page 137 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sudoku Puzzle is a grid with 6 squares deep and 6 squares wide. In each square you need to enter numbers from 1 to 6. The meaning of the puzzle: use the number in each row, column and 3x2 block only once. In Killer Sudoku, sub-regions have specified sums, and no number can be repeated within a region. This variant also called "Sums Sudoku", "Sums Number Place", "Samunamupure", "Kikagaku Nampure".