I opened the Dan level problems and was seriously confused by what is supposed to be the solution of the first problem. Can anybody explain to me why this is wrong?
each player has his own weaknesses You can be strong earlier at not seeing lack of liberties (especially if you have a little bit of training) so this problem may be hard for you but easy for others. So it can be a good pointer for improvement, last step being to get the adequate problems…
As a moral global answer (which was already debated in another topic) Classification by levels given by books are very often far from the reality, see for example Go problems for beginners vol 3…
ofc not. there is lack of liberties here too, and that’s far too much for a second problem…
Now the research tree is not large and neither deep, but that’s surely for a bit later…
In my personal opinion, this is a very good problem to practise visualising moves. The difficulty here does not lie in the number of variations to consider - there are only few compared to other problems. The difficulty is visualising the moves and the outcome.
I would not ask someone to solve this problem after they have just learned about the rules. But for someone who has played their first 10 games or so, this might be an appropriate problem.
Forgetting that you put yourself in Atari is a very common feature still at 13k. But Yes one has to try to eliminate this as early as possible. (if possible)