Tsumego Hero
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  • White to play. (Ko)
    Sprint Intuition Rejuvenation Refinement
    4k (48.7%)
    File by Bradford Malbon



    GUADALUPE:
    it's the only problem i hate
    5. July 2022
    00:47
    minhmon:
    if white go T19 black cant go T18 and R19, black has to find threat some where on board, if not white go R19 , white is alive
    Farkas:
    I couldn't follow your comment. Provide sequence.
    31. July 2020
    04:59
    d4rkm4tter:
    [sent via mail]
    Hello Joshka,
    Thank you for such a rapid response!
    You are doubtless a much better Go player than I am (because I need to use resources like Easy Kill on Tsumego Hero in order to improve). And yes, the instructions are indeed "Black to play", so a "best possible outcome" is what is expected.

    However: This collection is called "Easy Kill" and as far as I can tell, all the other exercises in the collection have "Xxxxx to kill" as the instruction. As the problem stands, black has no "kill", as such. I don't see a ko threat for black shown elsewhere on the board in this problem. The idea of exploiting a ko threat elsewhere on the board is not obviously part of the solution.

    Perhaps this problem could be moved to a more advanced collection, so that it does not cause confusion for those who expect all the problems in a collection called "Easy kill" to be resolved with an easy kill : )

    Best regards, James
    d4rkm4tter:
    This problem gives now the hint, that it is ko. It should remove most of the confusion that new players have here. Maybe we replace it later with a no ko problem.
    5. July 2020
    09:10
    Bryant:
    So it's not an unconditional kill; that's what I was missing. Thank you.
    Farkas:
    You are welcome.
    28. April 2020
    04:25
    Bryant:
    I think Wayne is right. After (B1, D2, A2), A1 by white is ko. If black can't find a ko threat then white is alive, right? Can someone please tell me what I'm missing here?
    Farkas:
    I don't exactly understand your comment. The task is: Black to play (and try to kill). The best solution is kill with ko. In this regard it is irrelevant if there is any ko-threat on the board.
    26. April 2020
    21:49
    Wayne Myers:
    Finally found the 'correct' answer to 127/200 (S19, Q18, T18), but surely T19 saves here.
    Admin:
    I disagree with your comment.
    1. September 2019
    07:11
    Jametto:
    Still ko
    Admin:
    Resolved.
    17. July 2019
    08:43
    Alllex:
    ko
    Admin:
    Resolved.
    3. July 2019
    03:18