Tsumego Hero
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  • Problems from Professional Games 17/45
    Black: White:
    Seo Bongsu 9p Oh Gyuchol 8p
    Black to play. Find the way to kill the white group.
    Sprint Intuition Rejuvenation Refinement
    3d (23.61%)
    File by Alexandre Dinerchtein

    Are you sure F8 or F9 kills the white group? White can atari on E6 and then make a second eye on E5.
    Ivan Detkov:
    I couldn't follow your comment.
    28. June 2022