Tsumego Hero
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    		Sprint Intuition Rejuvenation Refinement
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    • TwT:
    Additionally, if a inferior solution is triggered, there is "Bily" as synonym for "opponent".
    		13. June 2025
    18:11
    TwT:
    Within my limits: I miss the idea of Sadaharu.
    		13. June 2025
    18:05
    Sadaharu:
    After checking further, I realised that after A16 A14 the player can live with B18. I suggest adding in that variation as well since it's quite interesting. The opponent responding to A16 with A15 or B16 is interesting too.
    		30. May 2025
    04:37
    Sadaharu:
    [current position] Isn't just taking at T6 a better result for the defender than the disadvantageous ko?
    Ivan Detkov:
    100%
    		29. May 2025
    20:53
    kovarex:
    Right, after checking again, it really looks like 3 move approach ko, not 2, so I updated the problem. The terminology follows this logic: https://senseis.xmp.net/?ApproachKo The idea is the 0 approach ko is normal ko, 1 move approach ko is, when you (or the opponent) need to do an extra move to start a normal ko, etc.
    		28. November 2023
    00:36
    jhubert:
    3 steps kô ? ( not 2 steps)
    posetcay:
    As far as I understand, 2 step approach ko = 3 step ko, but the exact terminology is confusing.
    		27. November 2023
    10:38
    kovarex:
    A16 B18 B17 I have no idea why this could be wrong. As long as I can see black is safely alive after playhing this. It should either be correct variation, or refutation should be added.
    posetcay:
    Added refutaions.
    		27. November 2023
    01:34
    Lyde:
    I think S2 S3 T3 (lower right) also becomes an advantageous KO, albeit not a step KO
    posetcay:
    Added refutations to S2, opponent actually take the ko first with correct sequence and if S2-S3, T4 lives without ko.
    		22. July 2023
    14:18
    posetcay:
    Removed the continuation after opponent B19 because pretty much any move works afterwards (can even tenuki).
    		9. June 2023
    08:21
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