Tsumego Hero
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  • White to kill. (No Ko)
    Sprint Intuition Rejuvenation Refinement
    5k (47.7%)



    Godzilla0:
    Hello, the shape isn't a bulky five because if black totally surround white after the correct sequence there is an atari on the white stones. In this case, if white capture, it provides a dead shape :)
    caranthir:
    If I understood correctly you are talking about the right thing. The trick in the correct solution is to force a bulky five which also encloses an eye.
    19. May 2022
    18:52
    Orbry:
    Ah okay, after thorough reading I've found out that it becomes seki :)
    caranthir:
    Resolved.
    6. November 2020
    13:07
    Orbry:
    Hmm, making a square shape inside is labeled as incorrect move, but it seems that there is no living shape inside, so how is it wrong?
    caranthir:
    Resolved.
    6. November 2020
    13:00
    Markus:
    @Alberto: Your sequence (s18 t18 s17) provides a bulky five, true. But not good enough. -> Unconditionally alive, at least with seki
    caranthir:
    [Farkas: Actually, it is not a bulky five.] To be accurate, it is a bulky five, but does not result in almost-filling the space with a bulky five. The correct solution where we enclose an eye with the shape achieves just that.
    3. September 2020
    22:13
    Alberto Andrade:
    s18 t28 s17 is a bulky five as the solution, is there anything wrong with that?
    Farkas:
    It is not a bulky five.
    3. September 2020
    21:56
    Alberto Andrade:
    What is wrong with 2? leaves a bulky 5 as well
    Fupfv:
    I couldn't follow your comment. Provide sequence, please.
    22. August 2020
    19:37
    Alexis P.:
    Can black not play S3 to create a dead shape?
    Admin:
    I disagree with your comment.
    16. August 2019
    22:17