42 days ago

Has a Sudoku with 16 clues finally been discovered? How good are you at Sudoku?

Alan from Titirangi

It is supposed to be impossible for a "Sudoku" with 16 clues to have a unique solution. Try to solve the Sudoku below before you look here:
aaamazingphoenix.wordpress.com...

The “Sudoku” below has 16 clues and two solutions. However the two solutions appear to only swap around the 8s and 9s. Since there are no 8s or 9s in the original puzzle does this mean the solution is unique?

It is believed that there is no Sudoku with 16 clues i.e. with a unique solution. It was mathematically proven in 2012 by Gary McGuire and his team that 17 is the minimum number of clues possible for a valid Sudoku puzzle to have a unique solution; puzzles with 16 or fewer clues cannot have only one solution.

What about this puzzle?

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More messages from your neighbours
4 days ago

Today’s Mind-Bender is the Last of the Year! Can You Guess It Before Everyone Else? 🌟🎁🌲

The Riddler from The Neighbourly Riddler

I dance in the sky with green and gold, a spectacle few are lucky to behold; I’m best seen in the south, a celestial sight—what am I, lighting up the New Zealand night?

Do you think you know the answer? Simply 'Like' this post and we'll post the answer in the comments below at 2pm on the day!

Want to stop seeing these in your newsfeed? No worries! Simply head here and click once on the Following button.

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9 days ago

Poll: 🗑️ Would you be keen to switch to a fortnightly rubbish collection, or do you prefer things as they are?

The Team from Neighbourly.co.nz

Aucklanders, our weekly rubbish collections are staying after councillors voted to scrap a proposed trial of fortnightly pick-ups.

We want to hear from you: would you be keen to switch to a fortnightly rubbish collection, or do you prefer things as they are?

Keen for the details? Read up about the scrapped collection trial here.

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🗑️ Would you be keen to switch to a fortnightly rubbish collection, or do you prefer things as they are?
  • 83.9% Same!
    83.9% Complete
  • 16.1% Would have liked to try something different
    16.1% Complete
466 votes
9 hours ago

Time’s Running Out - Score Your Dream Bed Today!

Beds4U - Henderson

Hey neighbours!

Our Boxing Day Bed Sale is still on, but it’s ending soon! If you’ve been thinking about upgrading your bed, now’s the perfect time to act.

Enjoy some of our lowest prices of the year, with limited-time promotions across a wide range of beds and mattresses.

Stocks are limited, and once the sale ends, the deals are gone, so don’t miss out! Pop in and take advantage while you still can. A better night’s sleep is waiting for you!

Find your nearest Beds4U store: beds4u.co.nz/store-locator
Browse all Boxing Day deals: beds4u.co.nz/boxing-day

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