Sudoku Puzzles: 111 Sudoku Puzzles with Solving Tips

This book contains 111 puzzles, arranged in sections increasing difficulty: 28 easy; 28 medium; 21 hard; 34 very hard. For those new to Sodoku, the book also has: Sudoku –What’s That?; Introduction to Sudoku; Rules & Terminology; Solving Tips; History; Popularity; This solution of all puzzles are provided at the back of the book.