For lessons, as well as threads about specific moves, and anything else worth studying.
emeraldemon
Gosei
Posts: 1744 Joined: Sun May 02, 2010 1:33 pmGD Posts: 0KGS: greendemonTygem: greendemonDGS: smaragdaemonOGS: emeraldemonHas thanked: 697 times Been thanked: 287 times
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by emeraldemon Sat Oct 30, 2010 11:36 am
I was messing around with some stones randomly on the board and came across this, I thought it was kind of fun so I'll share. What's the status?
$$B Status?
Click Here To Show Diagram Code [go]$$B Status?
SoDesuNe
Gosei
Posts: 1810 Joined: Wed Apr 21, 2010 1:57 amRank: KGS 1-danGD Posts: 0Has thanked: 490 times Been thanked: 365 times
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by SoDesuNe Sat Oct 30, 2010 11:51 am
$$B Status?
Click Here To Show Diagram Code [go]$$B Status?Dead, I assume.
$$W Status?
Click Here To Show Diagram Code [go]$$W Status?Alive, I hope ^^
Li Kao
Lives in gote
Posts: 643 Joined: Wed Apr 21, 2010 10:37 amRank: KGS 3kGD Posts: 0KGS: LiKao / LokiLocation: Munich, GermanyHas thanked: 115 times Been thanked: 102 times
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by Li Kao Sat Oct 30, 2010 11:52 am
If b moves first it seems to be dead:
$$B Status?
Click Here To Show Diagram Code [go]$$B Status?White moving first is more complicated, but I think he can live.
Sanity is for the weak.
Bill Spight
Honinbo
Posts: 10905 Joined: Wed Apr 21, 2010 1:24 pmHas thanked: 3651 times Been thanked: 3373 times
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by Bill Spight Sat Oct 30, 2010 12:12 pm
$$W White to play
Click Here To Show Diagram Code [go]$$W White to playHow about this?
Edit: I think that this is an interesting variant. I did not want to take away from the original, but now time has passed, and I am unhiding this note.
Last edited by
Bill Spight on Sun Oct 31, 2010 11:01 am, edited 1 time in total.
The Adkins Principle:At some point, doesn't thinking have to go on?
emeraldemon
Gosei
Posts: 1744 Joined: Sun May 02, 2010 1:33 pmGD Posts: 0KGS: greendemonTygem: greendemonDGS: smaragdaemonOGS: emeraldemonHas thanked: 697 times Been thanked: 287 times
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by emeraldemon Sat Oct 30, 2010 3:22 pm
I actually think white to play is the more interesting one:
$$W Ko
Click Here To Show Diagram Code [go]$$W Ko$$W Dead
Click Here To Show Diagram Code [go]$$W DeadUnless I missed something...
Dusk Eagle
Gosei
Posts: 1758 Joined: Tue Apr 20, 2010 4:02 pmRank: 4dGD Posts: 0Has thanked: 378 times Been thanked: 375 times
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by Dusk Eagle Sat Oct 30, 2010 5:56 pm
We don't know who we are; we don't know where we are.
emeraldemon
Gosei
Posts: 1744 Joined: Sun May 02, 2010 1:33 pmGD Posts: 0KGS: greendemonTygem: greendemonDGS: smaragdaemonOGS: emeraldemonHas thanked: 697 times Been thanked: 287 times
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by emeraldemon Sat Oct 30, 2010 8:25 pm
Oh man, I completely missed that. I need to do more tsumego
ndkrempel
Beginner
Posts: 7 Joined: Wed Oct 20, 2010 3:59 pmRank: BGA 3 danGD Posts: 0KGS: ndkrempel
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by ndkrempel Sun Oct 31, 2010 1:45 pm
This is a nice shape, and I would like to put it or some variation of it on goproblems.com if it's not already there. Could I have your permission to do that (I would give credit of course), or maybe you'd like to do it yourself?
Bill Spight
Honinbo
Posts: 10905 Joined: Wed Apr 21, 2010 1:24 pmHas thanked: 3651 times Been thanked: 3373 times
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by Bill Spight Sun Oct 31, 2010 2:30 pm
$$W Approach ko
Click Here To Show Diagram Code [go]$$W Approach koI think that this is the solution.
$$W Direct ko
Click Here To Show Diagram Code [go]$$W Direct koThe direct ko is not as good, as a rule.
$$W Failure
Click Here To Show Diagram Code [go]$$W Failure attempts to avoid ko. But Black fills, sacrificing four stones.
$$B Failure {cont.}
Click Here To Show Diagram Code [go]$$B Failure {cont.} is nakade. After
White cannot capture because of shortage of liberties.
$$W Clever attack
Click Here To Show Diagram Code [go]$$W Clever attack is emeraldemon's clever attack.
is Dusk Eagle's refutation.
The Adkins Principle:At some point, doesn't thinking have to go on?
emeraldemon
Gosei
Posts: 1744 Joined: Sun May 02, 2010 1:33 pmGD Posts: 0KGS: greendemonTygem: greendemonDGS: smaragdaemonOGS: emeraldemonHas thanked: 697 times Been thanked: 287 times
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by emeraldemon Mon Nov 01, 2010 11:20 am
ndkrempel: I'll be happy to add both variants, as soon as I'm sure I understand them
Bill:
So it seems like your saying in the variant you posted, the correct solution is an approach ko, but in the original problem white can live? In particular this line:
$$W Works for W
Click Here To Show Diagram Code [go]$$W Works for WWith no stone at a, white can play 9? If that's the difference, it's certainly an interesting variation
Bill Spight
Honinbo
Posts: 10905 Joined: Wed Apr 21, 2010 1:24 pmHas thanked: 3651 times Been thanked: 3373 times
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by Bill Spight Mon Nov 01, 2010 12:12 pm
emeraldemon wrote: Bill:
So it seems like your saying in the variant you posted, the correct solution is an approach ko, but in the original problem white can live? In particular this line:
$$W Works for W
Click Here To Show Diagram Code [go]$$W Works for WWith no stone at a, white can play 9? If that's the difference, it's certainly an interesting variation
Yes, I think that White can live outright in the original.
It's amazing how much go there is in a small compass, isn't it?
The Adkins Principle:At some point, doesn't thinking have to go on?
attempts to avoid ko. But Black fills, sacrificing four stones.
is nakade. After 
White cannot capture because of shortage of liberties. 
is emeraldemon's clever attack. 
is Dusk Eagle's refutation.