Dan Kravet

Sudoku Difficult Dan Kravet

Are you ready for the next generation of Sudoku that is certain to blow your mind?

This book will have your brain working hard to solve the problems it provides, but also gives the solutions to them at the back, just in case you encounter one that is particularly difficult to solve.

Perfect for quiet evenings, long rainy days or times when there's nobody else around and you feel like a challenge!