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BeginnerExercise201

 

BeginnerExercise201/Attempts
Sub-page of BeginnerExercise201

[Diagram]
Forced response

Lithel: I don't think White can win the capturing race here. Playing at B1 forces a play at W2.


[Diagram]
White's move, tied for liberties...

Lithel: After W2, black must play B3 to open up some liberties. Now the White group inside has 3 liberties left, the Black group has 3 liberties as well, and it's White's move, but Black has an additional advantage...


[Diagram]
White's move, tied for liberties...

Lithel: In this situation, playing at a now removes one of White's liberties. Approaching from the top requires the additional move at b though.

Mikesh: How about running at c?


[Diagram]
Fail from the bottom

[Diagram]
Fail from the top

Lithel: So if I'm reading this right, white is dead and black escapes. (B6 at a)

Mikesh: After W3 black may take sente and play elsewhere. White cannot play W5. She has to connect above W3 first. Otherwise B will capture there after W5 is played. So maybe W should take sente after B2 in the first place...



[Diagram]
What happens next?

LukeNine45: Good so far, but what if white extends down like Mikesh suggests?


[Diagram]
W still dies

ChrisSchack: The clamp is the best I can see, 6 at either 7 or 8 are obvious failures ... but it fails anyway on the throw-in.

LukeNine45: I moved this to the solution page.



[Diagram]
White's move, tied for liberties...

LukeNine45: In this situation, from above, what happens if white plays W1?

JoelR: Black plays B2. White cannot play at a, it's self-atari, and if White plays at b, it transposes into "Fail from the top"; Black need not play again.



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(OC) 2004 the Authors, published under the OpenContent License V1.0.