Kata

I must return index of the move right 0-8 || -1? Then why it shows some kind of error...

fun kata. I just don't understand why it is 6kyu and the other - simple result-checker kata - is 5 kyu. I think this kata looks a step further. It is fine for a 6kyu just I find the other one simpler. nvm

Hi!

Written tests allows to push partial kata solution

just look at my terrible solutions, wich passed the tests.

suggest add this case:

b = ['O', 'X', 'X', '', '', 'X', 'X', 'O', 'O'];
Test.expect(solveTTT(b.slice()) == 4, "Error with board: " + b + " - Got: " + solveTTT(b.slice()));

There's a problem with the random tests. In almost all cases, there will be at least one test with no solution. A couple examples I've encountered below:

// Example 1:
['X','O','O',
  '','X','O',
 'O','X','X']
 
// Example 2:
[ '','O','O',
 'O','O','O',
  '','O', '']

Approved

Needs random tests and example tests but good kata :)

Ok, I didn't understand that we only have to return a valid move. I used to return all winning or possible moves.

I would like to see someone solve this using a brute force recursive function.

Thanks, fixed that too. Also another bug I had.

Now my solution fails on your last case :p ['X', 'O', '', 'O', 'X', '', 'X', 'O', ''] i.e.

XO.
OX.
XO.

for which you accept 2, 7 but I think you meant 2, 8.

You are correct, I missed that one!

I don't understand why 8 isn't a valid answer for ['', 'X', 'O', 'O', '', 'O', 'X', 'X', ''] isn't that

.XO
O.O
XX.

which has both 4 and 8 as winning positions?