Challenging invasion question

For those interested in challenging life and death problems, I am relaying here a three year old thread posted on stackexchange:

I would label this problem pro level, but I think there’s interesting reading materials for all levels in the answers. The takeaway is that you should not take for granted that a 3-3 invasion always works (which is unfortunately what one of the answer does).

I posted a first answer 3 years ago, and another one a couple days ago with some help from Leela Zero. If you have suggestions to add to the discussion, I’ll be happy to take a look.

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thanks. really informative.

there is so much stuff it’s almost like half a book.

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