Huge Print Diabolical Sudoku 2

Check the sample puzzle on the back page to judge the difficulty!
Go beyond simple sudoku with this collection of diabolical sudoku puzzles.Large print with 2 puzzles per page and space for making notes.
You will need strategies like X-Cycles, BUG, XY-Chain, X-Wing, Simple Coloring, Y-Wing, Swordfish & XYZ Wing amongst others to solve the most difficult puzzles possible.
This large-print 8.5" x 11" book is great for those who love large-print font for easy visibility.
Two big puzzles on each page give you plenty of space to note candidates and the sturdy paper holds up well to erasing.
Large inside margins make it easier to solve the puzzles when you fold or tear out the pages. Great for sharing!
Large print on white paper is very easy to read (even in dim light).
The puzzles are for those that find newspaper Sudoku too easy. Use the sample on the back cover to judge if the level is right for you.