Can you crack the Son of Tough Nut?
WIN £1,000
IN the long, hot summer of 2013 we unleashed the world’s hardest sudoku, known simply as the Tough Nut.
Many tried to crack the perplexing puzzle. Most failed.
Now, after years of toil we are ready to unleash a new challenge on the world.
We present: Son of Tough Nut – and it comes with a £1,000 prize.
Experts believe this is the most fiendish sudoku the world has ever seen.
Puzzles guru Dr Gareth Moore, who runs www.puzzlemix.com, said: “No one will believe it’s solvable, with just three given numbers – but it is! And what’s more, you don’t need to guess – it can be done with step-by-step logic.”
Extra rules have been added to the puzzle to make it even harder – but here, if you dare to take on the challenge, is how to play:
Place a digit from 1 to 9 into each empty square. No digit repeats in any row, column or bold-lined 3x3 box
Touching squares (left/right/up/down) cannot contain consecutive digits such as 1 and 2, or 7 and 8. Diagonally touching squares cannot contain the same digit
Squares a chess knight’s move away cannot contain the same digit – meaning that any pair of squares that are two squares vertically and one square horizontally, or two squares horizontally and one square vertically, from one another cannot contain the same digit. This is without a doubt the hardest sudoku ever devised, but those who solve it have a shot at that £1,000.
HOW TO ENTER:
Once you have completed the sudoku please send it to the below address with a piece of paper with your name and email address (phone number can be provided if you do not have an email account) and post it to: The Sunday People Competitions, Reach PLC, One Canada Square, London E14 5AP. Or you can email a photo of the completed puzzle with your details to thepuzzler@people. co.uk. The closing date will be Tuesday, December 14. See terms below.
TERMS AND CONDITIONS:
Out of all correct entries, one winner will be picked at random to win £1000. The winner will be contacted via the contact method they sent with their entry by 5pm on Friday, December 17, 2021. The £1,000 will be processed as a BACS payment, and a Reach member of staff will be in touch to obtain this information once the winner has confirmed their acceptance of the prize. Please allow up to 28 days from providing your BACS details for the £1,000 to reach your account. Please note if we cannot get in touch with the winner by Wednesday December 22 another winner will be picked and you will forfeit the prize. All personal data collected will be for the purpose of this competition only, and following the competition period ending, all entries will be destroyed. Standard competition rules apply, please see mirror.co.uk/rules