Positive energy for the brain. 2 puzzles per page. 60 Killer sudoku puzzles 6x6 easy levels. 60 Killer sudoku puzzles 8x8 easy levels. 60 Chain Sudoku 8x8 easy levels. 60 Chain Sudoku 9x9 easy levels. Killer sudoku. This Sudoku leads step by step to the top of the skill. It is necessary to fill empty cells with numbers from (1 to 6; 1 to 8; 1 to 9; 1 to 10; 1 to 12), each of the digits should appear only once in each row and column of the 6x6; 8x8; 9x9; 10x10; 12x12 square. The sum of all the numbers in the cage must correspond to the number printed in the corner. They can be called figurative or geometric, they also have names (Killer Jigsaw Sudoku, Killer Geometry Sudoku, Killer Irregular Sudoku, Killer Kikagaku Nanpure). Chain sudoku ("Strimko", "Gyrus Sudoku") is a square consisting of circles. The goal is to arrange the figures in circles so that in each horizontal and each vertical all the numbers are different. In the links of one chain all the numbers must also be different. Unique puzzles. Only 1 verified solution. All answers are at the end of the book. Killer sudoku may be called or searched with the following phrases or names: sudoku, sum sudoku, killer sudoku books, times killer sudoku, sumdoku, sudoku books, easy killer sudoku, times killer sudoku books, killer sudoku puzzles, puzzle, the times killer sudoku books, times ultimate killer sudoku books, sudoku 9x9, killer sudoku puzzle books, killer puzzle, sumoku sudoku, sudoku puzzels, sudoku game, sudoku puzzle books, daily killer sudoku, daily sudoku killer, sudoku puzzles, sudoku for kids, easy sudoku puzzles, times killer sudoku solutions, super sudoku, daily sudoku, game sudoku, sudoku tips, sudokus, how do you play sudoku, play sudoku, sudoku solver, how to do sudoku, the times ultimate killer sudoku, play killer sudoku, sudoku answers, ultimate killer sudoku, how to play sudoku, sudoku rules, sudoku challenge, how to solve sudoku, sudoku puzzle solver, su doku, jigsaw sudoku, sudoku solution, sudoku easy, simple sudoku, sudoku solutions, sumoku puzzles, sudoku addition, sudoku board game, greater than killer sudoku, sudoku grid, times sudoku, sudoku very hard, difficult sudoku, sudoku of the day, sudoku hints, sum sudoku puzzles, jigsaw sudoku puzzles, la times sudoku, sudoku x, puzzle killer, krazydad sudoku, sudoku net, killer sudoku solver, sudoku mania, fiendish sudoku, daily killer sudoku main past puzzles, times puzzles killer, sudoku uk, dkm sudoku, usa today sudoku, play sudoku game. I hope you enjoy the book. Best regards, Basford Holmes