A CHALLENGE FOR Sudoku LOVER I know that regular Sudoku is too easy and less challenging for you.
The following Sudoku variants are included: 150 Sudoku X and 150 Sudoku Hyper Features: 300 Sudoku Variants Puzzle.
This Book contains 300 puzzles Sudoku Variants in normal and hard difficulty.
This specific Puzzle Book contains a top-quality Variety of Sudoku puzzles that are guaranteed to challenge you in the best way possible.
A CHALLENGE FOR Sudoku LOVER I know that regular Sudoku is too easy and less challenging for you