Tsumego Hero
  • Sprint Intuition Rejuvenation Refinement
    1d (2149)

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    posetcay:
    E18-F18-E19-D19-C19-F19-A18-A16-B19: Black is alive in the corner with 2 points while white has 4 points on the side (2 territory+ 2 prisoners) E18-F18-C19-E19-A18-A16-B19: Black is alive in the corner with 2 points while white has 2 points on the side (1 territory+ 1 prisoner) Therefore if black extends at E19 it is a loss of 2 points.
    caranthir:
    Oh, I didn't first know what extension you were talking about. I still think that one could play that points-losing variation in some rare cases where one wants to keep more on the sente side and also leave behind less ko threats. Even though that variation does look a little stupid to me :)
    18. November 2021
    22:44
    posetcay:
    While extending the stone does live, it loses points compared to the optimal answer, so I think in an advanced collection like this it might not be good enough.
    caranthir:
    How exactly does it lose points?
    17. November 2021
    17:01
    Sadaharu:
    Extending the stone first should work too and it shouldn't be counted as a wrong answer.
    7. May 2021
    12:18
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