Killer Sudoku: KILLER SUDOKU Vol. 55: Collection of 100 different Killer Sudokus for Adults - Easy and Advanced - Perfectly to Improve Memory, Logic and Keep the Mind Sharp - One Puzzle per Page - Inc

<p>Did you know that<strong> SUDOKU</strong> is a mental math game that, according to experts in the field of health, provides great benefits for the generation of new neurons?</p><p>The <strong>Killer Sudoku</strong> has 9 9x9 grids.</p><p>It has no initial numbers placed. It has groups of squares with dotted blocks. Each of these groups has a small black number that indicates the total sum of the cells in the group.</p><p>Each 3x3 row and column must contain a digit from 1 to 9. The numbers placed must add up to the group total, without repeating.</p><p>Each sudoku has a unique solution.</p><p>At the end, you will see the solutions for each of the sudokus. In all editions, you will have at your disposal <strong>100 Sudokus to solve</strong>. It's time for you to start playing with your mind.</p><p><strong>Let's have fun!</strong></p>