We're not given at all any references to what mapping is used by the kata. Are we supposed to run the actual tests then scrape the data from the test results? This is not acceptable.

There are no code size limit at all, so what's the point? It might as well not exist.

The only check is to ban the appearance of string exec/eval, but this is case sensitive, and is pointless too.

Hi,

• issue: what is the code length restriction? (most users won't even enter the trainer if the info is not given. The others might enter it without realizing it's a code golf task... Bad idea in both cases)
• suggestion: you could give a list of all the equivalences in the description.

Cheers