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I think these problems are in fact a bit harder than beginner level. What if I change the "difficulty" tags to "intermediate"?
I do not believe that the tesuji in these problems is single digit kyu. As for counting and calculation skill, I do not think that playing level matters. OC, it is not for the tyro, but my understanding of beginner level on SL is more advanced than introductory level, and goes up to SDK.