Tsumego Hero
  • Sign In
    		•
    White to play. (Endgame problem)
    		Sprint Intuition Rejuvenation Refinement
    1d (2155)
    Upgrade to Premium
  • 176

    • Download SGFFind similar problems


    Link current position

    Upload SGF


    Reesha:
    A2 - C1 - B2 is incorrect, but it leads to the same position as the correct one (C2 - A3)
    Ivan Detkov:
    Your move has been added. It solves the problem but I would never make such a move in a game because it is losing a very good ko-threat. It is aji keshi.
    		24. January 2024
    18:39
    posetcay:
    Added C19 as an alternative to B19.
    		23. November 2023
    00:04
    posetcay:
    Ah yes, C18 is a nice answer to B18, I missed that :)
    		14. September 2022
    13:08
    caranthir:
    If seki is the best endgame result for Black (see my earlier answer), then White should answer B18 with C18. I added that as an option.
    		13. September 2022
    22:02
    posetcay:
    I agree that it looks much better now, but B18 should also be considered correct, since black can get a sente seki on top of getting A16 in sente.
    caranthir:
    I agree that that is the best endgame, unless White were globally very strong ko-wise. I added the seki variation with B19. If White were to start ko after that, they don't have a local threat like in the case Black had played C19.
    		13. September 2022
    13:37
    d4rkm4tter:
    This is unkillable but there is a good endgame move. I changed the sequence and mentioned it as hint.
    		13. September 2022
    13:09
    posetcay:
    After A18, A17 is a wrong response. A18-C19 and its alive. As it stands, the problem is broken and must be fixed. It can be an endgame problem at best I think.
    Ivan Detkov:
    Yes, this one is broken. I can just confirm what caranthir said already.
    		29. August 2022
    13:17
    GoDave89:
    This one is unkillable (I remember spending aaaages on this one a few years ago :'D). T2 is still correct, but only endgame, because it can be refuted by R1! (So T2-R1-T3-Q2-S2-R2)
    caranthir:
    Oh, then this should be replaced or modified somehow.
    		5. April 2022
    12:17
    Fanfate:
    Is S2-T2-R2-Q2-R1-T1 working?
    caranthir:
    Seki. Here we want a ko for life instead.
    		12. January 2022
    10:37
    Noir:
    Isn't R2, S2, S1 hane a very similar result?
    caranthir:
    Seems not so to me. after that, Q2 ate, R1 connect, T2 descend -> seki.
    		9. June 2021
    20:52
    searching...