Sudoku Puzzles (Part 2): 111 Sudoku Puzzles with Solving Tips

This book contains 111 puzzles, arranged in sections increasing difficulty: 37medium; 37 hard; 37 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.