For any Minecraft professionals, note that wood being converted into 4 sticks wasn't intentional. I know that wood is converted into 4 planks first and those planks are converted into 8 sticks. I just forgot about the planks being converted first some how...

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I revised the descirption to closely match your suggestion, hope you find it more clear for you and the perspective of others?

If the array has at least 3 "Cobblestones" and 2 "Sticks" you can craft a singular stone pickaxe.

Hmm. I have never played mincraft. So I found the above instructions very confusing because it looks more like just an example of what you could do with those items, rather than the actual recipe for building a pickaxe.

To remove any ambiguity it might be better to re-word that like:

A pickaxe is made from 3 "Cobblestones" and 2 "Sticks".

it was more for fun :D

approved, sorry if i kinda wasted some of your time writing all of the other items.

Great first kata! I feel like this could definitely be a relevant/useful function for a game.

regex is useful if you know it. just takes some practice.

Your secret is safe with me ;)

I may have gone against Leon and used Regex. :)

nice

See above.

Doesn't this only make a list of odd numbers?