Sudoku Challenge: Collection of 350 sudoku puzzles easy to hard challenge for all levels.

Sudoku is a game of logic not guessing!Training your brain with 350 puzzles will keep you entertained and focused. By using your logic to complete the puzzles you mind gets sharpened.There are different levels of difficulty throughout the book. Start easy and keep challenging yourself to finish. The book also contains the solutions conveniently located at the end of each difficulty level section in case you get stuck.Perfect gift for travellers to enjoy on the journey and all brain games enthusiasts!Product Specification: 270 pages 3 Levels of difficulty 150 Easy 100 Medium100 HardPerfect 5.5x8.5 inch size to take anywhere!