Tsumego Hero
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    Sprint Intuition Rejuvenation Refinement
    3k (44.54%)
    File by Fupfv



    posetcay:
    Added a stone at B11, should properly be a ko now.
    caranthir:
    Thanks.
    14. October 2022
    13:18
    caranthir:
    SGF
    d4rkm4tter:
    As this problem seems to have no solution, I will remove it soon.
    11. May 2022
    07:34
    Ivan Detkov:
    It looks like an invalid task. c-16, b-16, b-15, a-15, a-18 instead of a-17 kills.
    caranthir:
    I agree. Currently I don't see any valid living sequence (ko or otherwise). Ivan's implied refutation above.
    24. April 2022
    18:52