Fixed. Remember to hit RESET to see the updated code of example tests.

I agree with you, however, this is a beginner-level exercise, so I believe that understanding the necessity of using a Map/Dictionary is part of the exercise. Just my perspective

fixed

no answer from OP

what does "is missing the function name" mean, could you be more precise ? is this about the sample tests or the full tests ?

Thanks for the comment. Much appreciated!

There are some kata similar to what you suggest. Check out these:

"Check and Mate?"

"Is the King in check ?"

"One line task: Is the King in check ?"

"Explain the Algebraic Chess Notation"

"Find the Final Position"

Enjoy!