Brain Teasers
3x3
Arrange the digits 1-9 in a 3x3 square using each once only according to the following rules. Exactly one prime is directly above a prime two less. Each pair of opposite corners sums to the same square total and exactly two columns share another square total. Exactly one prime is directly to the left of a non-prime two greater. Directly above exactly one square digit is a digit four greater. Directly to the right of exactly one cubic digit is a digit one greater
Answer
897-top635-middle
241-bottom
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Comments
I like it.
The clues confused me. I couldn't figure out what he was saying...
I try to do such maths without p&p ,and it was exactly the right thing for me. Very nice!
that was the best teaser yet. it took me a while. nice!
that was the dumbest teaser ever......
This puzzle is my kind of puzzle! I loved it! Great clues!
i'm bad at math
Very nice teaser!
Really more of a logic teaser than math, but very nice.
Really more of a logic teaser than math, but very nice.
Love it! Got an answer that fit all but one of the criteria and couldn't get any further. LOL
Thanks for your teaser.
I managed to solve it with scip (a linear, mixed integer and nonlinear programming solver). I uploaded the model file that I used to pastebin for anyone who might be interested to play with it.
https://pastebin.com/q8ssnejd
I managed to solve it with scip (a linear, mixed integer and nonlinear programming solver). I uploaded the model file that I used to pastebin for anyone who might be interested to play with it.
https://pastebin.com/q8ssnejd
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