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! :)