3x4 Problems / Attempts

Sub-page of 3x4Problems
[Diagram]

Black plays at 1 to win?



unkx80: I don't think so.

[Diagram]

Black plays at 1 to win?

W2 turns the position into seki and hence it is a draw.


[Diagram]

MasamuneXGP: Found it. B1 is the winning move

[Diagram]

W4 is Pass.

If white tries to keep symetry and hope for jigo, black plays a game-winning manego breaker at B3. White can't mirror it due to shortage of liberties, and A-1 is stupid. W4 is Pass, B5 gets Black two beautiful eyes.

[Diagram]

W4 is Pass.

If instead White tries to capture, Black plays B3 and prevents white from making eyes. Again White has nothing, so she Passes, and B5 makes life for Black again.


Gul: white to play and win! (japanese rules)

[Diagram]



[Diagram]

black 3 dead

white 2 dead

hence white wins (no komi i presume:))


White to play and win! (japanese rules, no komi)

[Diagram]

Mef: I'm pretty sure W1 wins here.

[Diagram]

If black tries to prevent white from getting an eye, he is stuck with a losing ko.



[Diagram]

white can foil any attempt by black to make an eye, after that it's a simple Me Ari Me Nashi.

[Diagram]

After W3 black suffers from a liberty shortage.


[Diagram]

failure

If White tries to keep the symmetry from the start, Black can break it and win.

[Diagram]

success

With an eye, White can now mirror for a draw.

-- The Count


[Diagram]

[Diagram]

Version 1

[Diagram]

Version 2

Alex: In version 1, White throws in at the marked stone and Black recaptures, leading to a seki, but Black still wins, with 3 prisoners to 2.


[Diagram]

Black Wins

[Diagram]

Black Wins

[Diagram]

Seki (Failure)

P7A77: Are these correct?


This is a copy of the living page "3x4 Problems / Attempts" at Sensei's Library.
(OC) 2014 the Authors, published under the OpenContent License V1.0.
[Welcome to Sensei's Library!]
StartingPoints
ReferenceSection
About