5
$\begingroup$

Jim is so happy after finding three solutions to a problem, then he texts Bob this :

Bob, I have found 3 solutions for your problem. I do not know whether these three are the only solutions or not, but I am sure there must be less than 15 solutions.

1A,1C,2C,2E,3A,3B,4E,4F,5B,5D,6D,6F
1A,1C,2D,2E,3B,3F,4A,4B,5E,5F,6C,6D
1A,1C,2E,2F,3B,3E,4A,4B,5D,5F,6C,6D

Bob then replies:

Thank you Jim, your solution works perfectly.

Addition to make the puzzle clear :

2 Days later, Jim texts Bob.

I have found all the solutions, it has exactly 11 solutions,
but I hope you find the other solutions yourself

What are they trying to solve ?

$\endgroup$

3 Answers 3

2
$\begingroup$

I think it is

Planting 12 trees on a 6x6 field such that not more than 2 trees lie in the same straight line.the Apparently, the Number of solutions might turn out to be 11.

$\endgroup$
2
$\begingroup$

The problem they are trying to solve is:

How to place 12 points in a 6x6 table such that each line and each column contains exactly 2 points, and that the bottom half, the top half, the left half and the right half all contain 6 points each.

$\endgroup$
4
  • $\begingroup$ Still wrong, almost right, because the solutions must be less than 15 $\endgroup$ Commented Sep 23, 2016 at 8:15
  • $\begingroup$ @JamalSenjaya I tried harder. $\endgroup$ Commented Sep 23, 2016 at 8:18
  • $\begingroup$ your last edit is still wrong, because with your problem you will find more than 15 solutions. $\endgroup$ Commented Sep 23, 2016 at 8:24
  • $\begingroup$ @KeyurPATEL Nope $\endgroup$ Commented Sep 23, 2016 at 8:33
1
$\begingroup$

The puzzle is:

Placing 12 points in a 6x6 table such that each row and each column contains exactly 2 points and diagonally contains 1 or 2 points.

$\endgroup$
2
  • $\begingroup$ Good start, but the problem is more complex than that. $\endgroup$ Commented Sep 23, 2016 at 9:50
  • $\begingroup$ Ok, i will try.. Thank you for a nice question..Upvote for you.. $\endgroup$
    – KSR
    Commented Sep 23, 2016 at 9:51

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.