caranthir: Also, @Dallin, about the vocabulary here: "to kill" means to kill unconditionally. Finding a ko does not necessarily a group dead make. So, in every problem (unless there is a mistake), you can always take "to kill" to mean that you have to search for an unconditional solution. -- "Ko" as a hint usually means that there simply is no unconditional kill. (Maybe in some cases there might be a problem which presents a position first time and the task is to find a ko - if the unconditional kill is very hard to find. Then the position is brought second time in another problem and now the task is to kill unconditionally).
caranthir: This is something that came to my mind while reading the exchange below between Dallin and Twt: What if the site had an option for the user to turn off all hints other than "b to play" or "w to play"? That should satisfy everyone who likes harder challenges and feels that being ruined by too many hints.
Dallin: If ko is not a solution, please make sure to list it in the title like the rest of them. The fact that other problems explicitly state that led me to believe ko was a valid option here.
TwT: Dear Dallin, Thank you for your feedback. From a High Dan perspective, we believe that tsumegos close to Dan level should not require hints. In other words, if you are genuinely committed to improving, you won't seek assistance. I'm uncertain about the best approach to support Go players in their development: should we be strict or more accommodating? What are your thoughts on this?
AnoHito: after the 2-2, 2-1 exchange, the play at 1-3 is listed as correct even though it result in a seki where b can no longer reduce the shape to a dead shape.
the correct move is at the 4-1 point since b can atari at 4-2 and still have 2 liberties. This is not possible afer b plays at the 3-1 point in the incorrect solution.
Dear Dallin, Thank you for your feedback. From a High Dan perspective, we believe that tsumegos close to Dan level should not require hints. In other words, if you are genuinely committed to improving, you won't seek assistance. I'm uncertain about the best approach to support Go players in their development: should we be strict or more accommodating? What are your thoughts on this?