![](https://cutehuur.com/wp-content/uploads/2021/11/Screenshot-2021-11-15-at-14.01.52-791x1024.png)
Go beyond simple sudoku with this collection of diabolical sudoku puzzles.
Large print with 2 puzzles per page.
You will need strategies like X-Cycles, BUG, XY-Chain, X-Wing, Simple Colouring, Y-Wing, Swordfish & XYZ Wing amongst others to solve the most difficult puzzles possible.