Tsumego Hero
  • Sign In
    		•
    		Sprint Intuition Rejuvenation Refinement
    1k (2011)
    Upgrade to Premium
  • 405



    • Tarek Barnes:
    It says "White to live. (No Ko)" but I found a correct variation that's a ko. Bottom left. White to play. B2 A3 A2 C1 B1 D2 D3 E1 D1. Am I missing something?
    d4rkm4tter:
    It is not really a ko, because White can play c18 later. E19 A16 G19 C18
    		22. July 2025
    22:44
    caranthir:
    I added a missing correct move.
    		18. April 2025
    00:20
    TherapieGo:
    If we play Q17 and the opponent answers S18 I don't see any unconditional life?
    Ivan Detkov:
    Good catch. I fixed it by adding your refutation.
    		23. January 2024
    15:11
    Djab:
    this sequence works but is claimed "incorrect" Human : S19 - Computer : T18 - H : T17 - C : Q17 - H : Q18 - C : P19 - H : S18 - C : N19 - H : R19 there is a bug
    Farkas:
    Please don't send the same message three times. I deleted the other two. Also, I repeat: missing sequence is NOT a bug. Anyway, your move has been added.
    		29. August 2020
    09:30
    Djab:
    B1. A2. A3. D3. D2. E1. B2. seems to work. There are 2 eyes but the pattern is said incorrect.
    Farkas:
    This seems the same comment as before.
    		24. August 2020
    11:32
    Djab:
    I have the feeling there is a bug This pattern is declared « incorrect » but it seems to work : Black b2. - White a2 - B a3. - W d3. - B d2. - W e1. - B b2 Black can make 2 eyes now. Am I wrong ?
    Farkas:
    There is no bug here, just a missing sequence. I added sequence.
    		24. August 2020
    11:22
    Thibaut PERRIN:
    SGF
    Farkas:
    Your move has been added.
    		15. June 2020
    22:37
    JeansebL:
    Seki should definitely be wrong when it's possible to live with points, just like ko is wrong when it's possible to live clean.
    d4rkm4tter:
    Depends.
    		5. June 2020
    07:40
    John:
    (LL corner) B2 guarantees live with points (right?), while in other ``correct'' variations its seki. Hence only B2 should be correct.
    Farkas:
    Seki is also alive, and is accepted here as correct solution. Furthermore not only B2, but B1 lives without seki, too. Also, I corrected a few moves (but seki is still correct).
    		15. May 2020
    15:35
    searching...