Sudoku Variations (Volume 4)

Welcome to volume 4 of this extraordinary collection of Sudoku Variants puzzles!
There are 75 Variations of Sudoku in this book. Two puzzles of each kind, one of the relatively easy, one relatively difficult, for a total of 150 fantastic puzzles. There are also a few surprises at the end - you will have to find what they are yourself.

The variations presented herein include:
• OUTSIDE Sudoku of all sorts
• Multi Sudoku, also known as Loco Sudoku, something really CRAZY
• Frame Sudoku
• Diagonal Sudoku X
• Jigsaw Sudoku and Jigsaw Combination
• Consecutive Sudoku
• Non-Consecutive Sudoku
• Hyper Sudoku (Windoku)
• Greater/Less Than Sudoku (inequality sudoku)
• Odd-Even Sudoku
• Killer Sudoku and Killer with all operators +*-/
• Double Sudoku
• Triple Sudoku
• Flower Sudoku
• TwoDoku
• Butterfly Sudoku
• Sudoku Ring
• Sudoku in various sizes: 6x6, 8x8, 10x10, 12x12 and 16x16
• Clueless Sudoku
• ...and all sorts of combinations of those variations!

There are too many variants for you to ever get bored with this book!
ENJOY! :)