Tsumego Hero
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  • Black to kill. (No Ko)
    Sprint Intuition Rejuvenation Refinement
    7k (59.98%)



    Paiguru:
    "No Ko" is misleading. Only dead in Japanese ruleset.
    d4rkm4tter:
    There is a direct ko that can be avoided though.
    18. October 2021
    15:17
    TherapieGo:
    "Bent four" in the corner is dead – if there are no unremovable ko threats. If there is a seki on the goban then the "Bent four" becomes a simple ko.
    6. April 2021
    11:26
    kgcsabi:
    According to the linked page: Bent four in the corner is dead – if there are no unremovable ko threats. This puzzle requires a solution that does not involve ko at all.
    Farkas:
    I disagree with your comment.
    21. March 2020
    18:58
    LastDreamer:
    It is not possible to kill the group unconditionally. Only ko or seki. Bent four it is a ko in this case
    Farkas:
    I disagree with your comment. https://senseis.xmp.net/?BentFourInTheCornerIsDead
    4. February 2020
    07:56
    Girod:
    i think it's always ko or seki ?
    d4rkm4tter:
    It's bent four.
    30. November 2019
    14:37