93 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
1 hour ago

Poll: Should complete designs be shared with the public, or should the community help shape the designs from the start?

The Team from Neighbourly.co.nz

The Post recently shared an opinion piece on the Harbour Crossing and why a more democratic approach might be needed 🚗🚲👟

While most decisions sit within the political arena, many organisations—like NZTA—manage long-term projects that go beyond party lines. Politics can sometimes disrupt progress, and the next Harbour Crossing is a big decision that will affect all Aucklanders.

We’d love your thoughts: Should near-complete, shovel-ready designs be shared with the public, or should the community have a hand in shaping the designs from the start?

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Should complete designs be shared with the public, or should the community help shape the designs from the start?
  • 0% Community feedback and transparency is needed.
    0% Complete
  • 0% No. This would be impossible in practice.
    0% Complete
0 votes
5 days ago

Poll: Should the government levy industries that contribute to financial hardship?

The Team from Neighbourly.co.nz

As reported in the Post, there’s a $30 million funding gap in financial mentoring. This has led to services closing and mentors stepping in unpaid just to keep helping people in need 🪙💰🪙

One proposed solution? Small levies on industries that profit from financial hardship — like banks, casinos, and similar companies.

So we want to hear what you think:
Should the government ask these industries to contribute?

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Should the government levy industries that contribute to financial hardship?
  • 59.6% Yes, supporting people is important!
    59.6% Complete
  • 25.9% No, individuals should take responsibility
    25.9% Complete
  • 14.5% ... It is complicated
    14.5% Complete
984 votes
6 days ago

A Neighbourly Riddle! Don’t Overthink It… Or Do?😜

The Riddler from The Neighbourly Riddler

Do you think you know the answer? Simply 'Like' this post if you know the answer and the big reveal will be posted in the comments at 2pm on the day!

If you multiply this number by any other number, the answer will always be the same. What number is this?

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