OP solved it, closing

Not a kata issue.

It is not a Kata issue. CW server had lots of issues back then.

Choose an appropriate language and language version from above the code section.

By the way, it's a CW problem and not a kata problem, so it's not an issue.

It's an old kata bug :( Because the test cases are already locked I've updated in the descriptions what you should do.

yes! as follows.

function scramble(str1, str2) {
  console.log(str1,str2) // shows you the input values
  return 'expected value'
}

No, the numbers 9, 5 and 8 are not adjacent to 3. So when your first digit is 3, you can't have 6 possibilities to enter. Same rules apply to your 2nd and 3rd digit.