Lefrans: Ok please can someone help me ? I am 4k rank and have more than 30 fail on this tsumego, it's been months since I first try it and can't find an answer. Can someone please save me from this nightmare ?
Sadaharu: Why does this problem get so many comments lol
d4rkm4tter: Love it. This is also an example that the new rating system works. It lost 230 rating points in a month. Before it was rated too high, because Easy Capure is played mostly by beginners and they were more likely to fail. One of the advantages of the new system is, that it compares the user rating to the tsumego rating. The tsumego rating variance might still be a bit too low though.
Мопс 001: Liked the set. Simple but still requiring to think.
It was useful to discover some patterns and in particular in this last task.
I hate when my stones are captured in attacking series and it's hard to read ahead (on its own actually) taking into them account. The only thing that helps is that these were not that difficult overall.
Rene: Dear, as said: P2, Q2, R2, S3 should already lead to an error, but it does only AFTER a further move. but the 4 moves all got accepted; hence, I was believed to be on the right track initially.
Suggestion to update L200 to indicate an incorrect move sooner (as for all the other levels).
caranthir: I understood what you meant. Still, it has educational value to show also refuting moves in problems. If any incorrect move immediately ends a problem every time, one does not get to see any refuting moves that demonstrate why the line chosen was bad. What you are asking is contradictory to the preferences of the majority of users, as far as I know: usually people ask us to add in "incorrect", i.e. refuting variations, not to remove them (actually, you are the first one of the latter kind that I have seen). Btw, the existence of refuting variations does not make any difference if one is solving problems in the most rigorous fashion, that is, by reading alone and not by trial and error.
Rene: Solved it but there's an error.. it accepts P2, Q2, R2 and S3, and then no matter what you do you receive an error.. seriously no learning curve here.
Eventually, I played P2 followed by R2 (again). This time no error, and easy solution.
caranthir: The moves you played to solve the problem (if you received that message) are the only moves that work; namely, P2, then if opponent answers with Q1, we immediately play R2, then R1, S1, T1, Q2, S1, S3, T3, T2, as per the way the opponent is made to resist here. Speaking of sequences that don't work, I don't see any errors in opponent's refutation moves. That is, no move works that shouldn't work, and if it says "error", there is no possible way to continue, and either your last move *or already some earlier move* was a mistake. --- This problem is considerably harder than others in this collection. It might be helpful to look at it with real stones and board if you have those, or with an sgf editor.
aponty: To be fair to the people having trouble with this problem, it is something like a 15kyu-10kyu-ish problem in a 25kyu problem set. I think that makes it a great final problem for the set though!
Raph Ernotte:
Net and then another technique