For lessons, as well as threads about specific moves, and anything else worth studying.
lightvector
Lives in sente
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by lightvector Wed Dec 23, 2020 4:40 pm
Here's a puzzle in a similar shape as the last ladder position I posted. It is not anywhere close to the same level of complexity, it's much easier.
Black tries to play a ladder maker, White to respond. The correct move will break the ladder in a way that leaves Black with no good further options to re-threaten it.
$$Bc White to play
Click Here To Show Diagram Code [go]$$Bc White to play
Uberdude
Judan
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by Uberdude Wed Dec 23, 2020 7:03 pm
Just on the fact you made a post and I like empty triangles (I didn't even check the ladder):
$$Bc White to play
Click Here To Show Diagram Code [go]$$Bc White to play
Knotwilg
Oza
Posts: 2432 Joined: Fri Jan 14, 2011 6:53 amRank: KGS 2d OGS 1d Fox 4dGD Posts: 0KGS: ArteveldeOGS: KnotwilgOnline playing schedule: UTC 18:00 - 22:00Location: Ghent, BelgiumHas thanked: 360 times Been thanked: 1021 times
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by Knotwilg Fri Dec 25, 2020 1:47 pm
I came to the same conclusion as Ubderdude, for almost the same reasons and with a bit of reading
$$Bc White to play
Click Here To Show Diagram Code [go]$$Bc White to play
A and B answer the threat but don't break the ladder. E breaks the ladder but doesn't answer the threat. Only C and D do both.
$$Bc White to play
Click Here To Show Diagram Code [go]$$Bc White to play
D gives this result. I don't see how Black can take advantage.
$$Bc White to play
Click Here To Show Diagram Code [go]$$Bc White to play
Maybe this way?
lightvector
Lives in sente
Posts: 759 Joined: Sat Jun 19, 2010 10:11 pmRank: maybe 2dGD Posts: 0Has thanked: 114 times Been thanked: 916 times
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by lightvector Fri Dec 25, 2020 2:21 pm
@Knotwilg, basically yeah, but for the variation you asked about:
Black magnifies once and then wedges:
$$Bc
Click Here To Show Diagram Code [go]$$Bc
Now 'a' and 'b' do not break the ladder. Only c breaks the ladder and defends, for the moment.
$$Wc
Click Here To Show Diagram Code [go]$$Wc
Now white is in trouble. Only 'a' keeps the corner, but it does not break the ladder.
