'Extreme Sudoku For Dummies' will provide readers with diabolical puzzle variations such as 9 x 9, 12 x 12, 16 x 16, jigsaw, circular and killer puzzles to challenge even the most skilled experts.
236 puzzles are included in this volume to challenge the confident Sudoku player, as well as useful strategies that will help readers filter out candidates and solve puzzlesm one step at a time. Sudoku players will also get the lowdown on advanced strategies such as Naked Pairs, Naked Triplets, Hidden Pairs, X-Wing, Y-Wing, among others. Solutions appear at the end of the book and various puzzles also feature time completion estimates so that solvers can use time to measure their progress and ability.