Sudoku für Profis

The ultimate Sudoku challenge is not for the faint of heart! Train for the black belt in cracking Sudoku: 150 devilishly tricky number puzzles await your solution. Logic alone is not enough! In this book, you will find: 150 particularly convoluted number puzzles with all solutions, helpful examples and success tips from a Sudoku professional, guidance on using candidate lists, explanations of pair, triple, and contradiction techniques, numerous other expert methods, and combined solution approaches.