Sudoku fans will welcome this bright new twist to the popular puzzles! Every one of these ingenious creations—from “Bold X” to “Rainbow Up”—makes colors and patterns part of the solving fun. And although each puzzle maintains the normal 9x9 grid and follows the basic rules of the game, every style adds an additional restriction to intensify the challenge. In “Worms,” for example, swirly, squirmy shapes fill the grids; the numbers increase as you work your way from head to tail. “Even/Odd” features squares in two colors, depending on whether the number to fill it is even or odd. And in “Positional Board,” no two of the red squares can be the same number. They’re all lots of fun!
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great bookUser Review - 50kat - Overstock.com
loved the fun and challenge of the book, great spin on sudoku, was really fun to learn the new ways to play, the color designs added to the fun of sudoku. A great challenge for those of us who have mastered the hardest sudoku puzzles. Read full review
Review: Color SudokuUser Review - Robert - Goodreads
Lots of fun if you like sudoku you'll find these variations on the puzzle intresting. Puzzles are ranked according to difficulty so you can get the hang of how the puzzle works and then try harder versions. Read full review