copy pasters i guess

bro how did you even think of this

This solution is insanely crazy, I was looking to get something of this style, but couldn't figure it out and went for a much more long winded approach.

this solution burns my brain

Hi

Why is it suited for python 3.10 ? what's the feature of it involved in the refinement of the code ?

Thanks

This is crazy smart

technically correct, but i feel like the kata wanted us to find the gcd and not import a library to do it for us

wow...simple, fast and doesnt involve any nonsense... This is the best solution

Damn, this is elegant. It's not particularly efficient, worst case O(n^2) time and O(n) space, but the way you build the interval array is very pretty indeed.

NOT best practice (collections as default arguments are the source of all evil).
But damn. it's clever

I was also confused at the beginning but there is no error in this test.

For example, your two solutions have a common "!" (the first cell in the 3rd row). You can safely open that cell and continue according to the result. When you open it, the number you get will eliminate some of those possibilities.

I am in the same position and I understand that the result must be ?.

Solution 1: ( "!" are the positions that one can safelly call game.open. "X" upper case is the first guess.
x 2 3 x 2
2 ! x x 2
! x 3 3 2
! ! ! 2 x
! ! X 2 1
In this case we found one possible solution.

Solution 2:
x 2 3 x 2
2 x ! x 2
! ! 3 3 2
? ! X 2 x
? ? ! 2 1
One mine in any of the ? will also be a solution, so we have 3 more possibilities.

As we end with 4 possible solutions the return should be "?"

if a==29:map[(28,0)]=open(28,0) # Because one of the tests is wrong!!!

=> lol! No, no tests are wrong, it's just your code... ;)