Yeah, different levels are great! Also I'm thinking about custom one, to let user specify size explicitly (if server allows users to)
I updated the challenge so one can choose from those levels. I thought that you might be interested where the user could specify the size, but I do not really feel like it would be great. I mean it would need validations, also if there would be a very big maze like 250 x 250, 3 coins would be too few I think... :)
I didn't think about number of coins vs size. You're right
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