Has a Sudoku with 16 clues finally been discovered? How good are you at Sudoku?
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?
Poll: How important is the ability to book a doctor’s appointment online?
Hi Neighbours
Here at The Doctors we would love to hear how you prefer to book your doctor’s appointments. With busy schedules, different people find different methods easier.
For some, online booking is very convenient, you can make an appointment anytime without needing to wait on the phone. Others still prefer calling the clinic and speaking to a real person, especially if they have specific questions about their visit.
Your feedback helps us understand what works best for our patients and how we can improve access to care.
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0% I prefer booking online whenever possible
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0% Online booking is helpful but not essential
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0% I prefer calling the clinic
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0% I didn’t know online booking was available
Don't overthink this riddle...
I have a silver sole
but no feet,
I make my living by bringing the heat.
What am I?
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!
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Poll: Does a savoury scone require cheese on top, or folded inside?
Help settle the great kiwi debate ... cheese on top, or folded inside?
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76.4% Inside!
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23.6% On top!
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