Tsumego Hero
  • Sprint Intuition Rejuvenation Refinement
    1d (2142)

    Download SGFFind similar problems


    Link current position

    Upload SGF


    GoEye:
    B18 is an unconditional life and D18 is a Ko. Why do D18 is an answer here?
    posetcay:
    Resolved.
    17. May 2023
    12:32
    Lyde:
    SGF
    posetcay:
    Actually if black wants to avoid ko, black should descent at B18 as first move instead of D18 so your variation would be inferior to that. In that case should we also flag D18 as a mistake since it leads to ko and make B18 the only correct answer?
    10. October 2022
    12:25
    Lyde:
    I'm confused. The solution is KO but Q2 S2 into P1 or P2 just lives (although giving up stones)?
    Ivan Detkov:
    I do not understand the idea. Please try to explain better.
    4. October 2022
    10:37
    posetcay:
    SGF
    caranthir:
    Very good. I modified the problem according to your variations.
    12. September 2022
    12:39
    posetcay:
    W P2 is the wrong resistance, it becomes ko if W descend at R1 instead, I have uploaded the SGF with the correct variations. I recommend either removing N4 stone to give B one more liberty or switch the correct solution to ko (black takes first).
    caranthir:
    Resolved.
    12. September 2022
    12:39
    waanotan:
    i think black can live with tsuke nobi at the corner - w cut but b sacrifice thus 3 stones if atari next w can’t cut - b connect b B18/wC16/ b D18/w E15/B C18 - live in gote - dunno how w kill this shape
    Ivan Detkov:
    You answer is inferior to the correct solution.
    15. August 2022
    14:08
    SharpCoder:
    Counter-play is incorrect. Right lower corner R4, S2, T2, S1. S1 is incorrect because then R2 and tsumego is solved.
    Farkas:
    Sequence is changed.
    21. August 2020
    15:53
    stonemuncher:
    What about bC18 wD18 bC19 wC16 bE19?
    d4rkm4tter:
    c19 doesn't make sense.
    14. June 2020
    15:37
    thepope:
    Giving up 3 stones should be considered living
    d4rkm4tter:
    It is possible to live without giving up stones. So it is too suboptimal.
    11. December 2019
    00:21
    searching...