Tderz No problemo ...
-
technique learnt from a hamete variant of the taisha (which I never play - the taisha in general)
![[Diagram]](../../diagrams/49/8d5756ac46609df091325e9e55f37a34.png)
Direct ko
Direct ko,
white must search for first ko threat,
![[Diagram]](../../diagrams/30/9c8f52ef8f8422cdd4cc3d1126d27225.png)
Black to play.
Black has 1 internal ko threat.
If ..
![[Diagram]](../../diagrams/11/f79b34444459d7357a0102af675ed8ea.png)
White wants to resist ...
![[Diagram]](../../diagrams/8/f5ab311dd5c65190729c9c01e3f38751.png)
futile
![[Diagram]](../../diagrams/17/7101bdd8a34492fb1467a575022a28ba.png)
Possibility
Rich: If you start with
, why not like this?
![[Diagram]](../../diagrams/2/5aeee1efa7fd7523b6801e9b83c0a312.png)
Semeai
JoelR: Now each has 3 liberties (including
), plus the shared liberty, and it's White's move.
![[Diagram]](../../diagrams/50/2d657d782edc44b9096444345f14da72.png)
Semeai
TDerz: I missed a lot !
![[Diagram]](../../diagrams/1/efc68de5c53839269f18b44d1a309d53.png)
Semeai: White wins
![[Diagram]](../../diagrams/24/068721889127d4ee0e4c96fad45a9dda.png)
Possible danger?
Rich: Although it seems that the black corner is now dead. I've probably missed something...
Tderz:
and
are miai. Black is dead
![[Diagram]](../../diagrams/11/b0a9dd023dfe5a7c924e30dab6b18509.png)
Black to play.
Tderz: All of this excellent stuff written above proofs:
- I was indeed careless again, and
- Black should better take care of his group:
![[Diagram]](../../diagrams/47/9d81684c8a28a6fbc07fc91405bce0a4.png)
Black can't save all and lives in the corner.
![[Diagram]](../../diagrams/40/a377541ee75da8925d08adc234ba2056.png)
What if
?
![[Diagram]](../../diagrams/42/4dee6402713d4953ac43ba4f90e59e12.png)
Tderz If
above, black captures with living shape.
![[Diagram]](../../diagrams/41/106f2ff528e14018e19702565c31b2d5.png)
Or, if
here, it reverts to some upper variations (ko).
![[Diagram]](../../diagrams/48/543e177d3caba97395a99d44b1013986.png)
black loses, if he wants to avoid the ko
![[Diagram]](../../diagrams/29/c53e9c594451f59fcbbc53228d073dee.png)
Liberties
Dieter: Black cannot save his cutting stones but lures out his two stones.
![[Diagram]](../../diagrams/33/e88384cf12851c0a2aa390070124eff3.png)
More
cannot resist due to lack of liberties
![[Diagram]](../../diagrams/0/9146c7a7ddb84be82c1ad6afb2414e72.png)
Or ...
Or can White do even better?
DJ: This last diagram seems not so good for White:
![[Diagram]](../../diagrams/4/bf8feacfb755e73133b644644ef35128.png)
Black lives
Now either Black lives or captures also the two stones in the corner. A similar sequence happens if
is at a (
at
):
![[Diagram]](../../diagrams/50/ab5fe5e5e3d92c74a9ec2b682190e7b4.png)
Black still lives
Tderz: Ode to unkx80 (what a composition) - Wahnsinn - I'm lost.
I gave several careless random shots and linger for the solution:
is Black doomed on both sides??
unkx80: How embarassing... I seemed to have posted a composition that does not work. -_-
I originally have two solutions in mind.
![[Diagram]](../../diagrams/25/780c5dc473b1b7abd49352fe50097f26.png)
Alleged solution 1
![[Diagram]](../../diagrams/36/1e4f0df1367c4b95d570597ed42896b6.png)
Alleged solution 2
![[Diagram]](../../diagrams/39/e0b6dd7332e6831e37ad017fb8611496.png)
Alleged solution 2 failure
But now I think
kills.
Which means, I need to give Black more liberties as follows. Sorry for the blunder.
![[Diagram]](../../diagrams/12/d131f158105863e9832f9a79e883e219.png)
Black to play.
Bill: That's OK, unkx80. Even the gods falter. :-)