And once you're ready to flex your new Sudoku muscles, 300 brand-new, hand-crafted puzzles await you: from regular Sudoku puzzles ratcheted up to severest of difficulty levels to new favourites such as Killer Sudoku, Squiffy Sudoku and Sudoku 16. You may be a Sudoku Master, but will you be able to master Extreme Sudoku?

Binding: Paperback;448 pages; Publisher: Ebury Publishing; Classification: Hobbies, quizzes and games; Weight: 436 g; Dimensions: 198 x 128 x 30

Something not quite right? You have 28 days from the day you receive it, to send something back.

Please note, we cannot offer refunds on fashion face masks, cosmetics, pierced jewellery, adult toys, and swimwear or lingerie if the hygiene seal is not in place or has been broken.

Items of footwear and/or clothing must be unworn and unwashed with the original labels attached. Also, footwear must be tried on indoors. Items of homeware including bedlinen, mattresses, and toppers, and pillows must be unused and in their original unopened packaging. This does not affect your statutory rights.

Click here to view our full Returns Policy.