Beautiful!

I agree that it wouldn't add anything, it just feels weird that it's missing imho. What is the difference between 6x6 and 7x7 version? I can't imagine an approach that works for the first but not for the latter in the given time.

I feel that there should be a 5x5 version of the Skyscrapers kata series, since the 4x4, 6x6 and 7x7 are already present. Generally I would avoid to have such similar katas (I used my solution easily for all three of them), even if it rewards the solver to implement a solution for a general n. The 7x7 should be the only one present imho.

I'm just baffled thinking how many hours you've spent into this without thinking on an extendible solution that works for a general n (since you can find here the 4x4 and 7x7 versions as well). I have to say I'm quite amazed, but for next problems I suggest you spend more time on planning before jumping in to coding, you could've earned 3x times more points (for what it's worth) and saved so much effort. I didn't mean to be rude, was just a bit shocked in seeing a 2600+ lines solution.

Nice catch, thanks!

Really???

love this

I hardcoded the last test solution as well. difflib is a great library anyway

nice solution without the lambda!

wow

Awesome one-liner!