Sudoku For Dummies, Volume 2

Sudoku For Dummies, Volume 2 offers 240 original and addictive puzzles, including new circular and 16 x 16 puzzles. These new puzzle formats add exciting dimensions to gameplay and ensure even the most avid Sudoku fan remains entertained. Of the 240 puzzles, 220 are the popular 9x9 puzzles, 10 are 16 x 16, and 10 are circular puzzles. Within each category, there are Easy, Tricky, Tough, and Diabolical puzzle ratings, with each puzzle clearly identified by its rating.

More than just a collection of puzzles, Sudoku For Dummies, Volume 2 features a chapter explaining how to solve puzzles and the strategies involved. Additionally, readers have access to all puzzle solutions in the back of the book. For those interested, a brief history of Sudoku (or Su Doku) is also included. Descriptions of the newer types of puzzles are provided below.

Circular Sudoku (10 included: 3 Easy, 3 Tricky, 2 Tough, and 2 Diabolical)
The rules are similar to the normal 9x9 Sudoku but with some important differences. The puzzle is circular, with 8 concentric rings. Each ring must contain the numbers 1-8, and each segment running into the centre of the circle and through to the opposite side must also contain the numbers 1-8, with no duplicate numbers.

16 x 16 Sudoku (10 included: 3 Easy, 3 Tricky, 2 Tough, and 2 Diabolical)
The grid is larger at 16 x 16, and solvers must fit the letters A-F into the grid alongside the numbers 0-9. 16 x 16 Sudoku puzzles are more difficult, take more time, and are more infuriating than the normal puzzles, but they are just as addictive!