Why are you suddenly adding strings other than numbers?

Also, needs random tests.

It's more user-friendly to provide at least 1 "sample" test case...

"You only need one line", but the example solution has umptheen. If you say it can be done in one line, show us how.

Error: caaatch not found.

• Needs sample tests
• Initial code has wrong specifications
• Outputs Human has walked 5 miles. As what? This is not a string
• Needs random tests
• This is nothing new. It's literally a amalgam of multiple existing katasmultiple, I.e still a duplicate

I suggest you to do more katas and learn from them before creating katas. Especially not tons of them ;-)

• Needs sample tests
• Needs more fixed tests: you only have 2 tests with the same letter, so it's far from full test coverage
• Needs random tests
• You do realize that what you're doing is creating jagged arrays with holes all over the place, right? At least the board should be initialized to 3x3

I suggest you to do more katas and learn from them before creating katas. Especially not tons of them ;-)

• Needs sample tests
• Needs better specifications - just saying 'there are surprises' does not make you look clever or anything
• Needs random tests
• Reversing things is a duplicate of many katas

I suggest you to do more katas and learn from them before creating katas. Especially not tons of them ;-)