Tsumego Hero
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    Sprint Intuition Rejuvenation Refinement
    5d (17.39%)
    File by Fupfv

    Sadaharu: After E19 F18 A18 A17, playing the wedge at D18 first should work too. jhubert: D17 is said bad because of C19 but in this case A19 kills everything. So B18 as defense is not good.
    The wedge at D18 should be the only correct move. C17 results in capturing a part but give life in the corner. After D18, white should answer D17 and it is a ko. ..D18-D17-C17-D19 still a ko.
    18. March 2022