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End Game Test Two White Solution 1
  Difficulty: Advanced   Keywords: EndGame

[Diagram]
Diag.: White to Play

Post your solutions here.


[Diagram]
Diag.: Ponnuki

FCS: Well, let's go with the gut reactions of a beginner... White 1 seems nice to me because it necessitates a black reply at 2, and so keeps sente. It also creates a ponnuki and connects white's territory on the left and right a little more.

Now we'll get some criticisms and start a discussion! =)



Interesting board size 11x11 :-)

[Diagram]
Diag.: Interesting areas

a
This is small (4 points?) sente for white but large (12 points?) sente for black
b
1 point gote for both
c
black needs another move before he can play here, as it is it is 1 point gote for white
d
The lower black group doesn't at all seem alive to me, but I cannot see a way of killing it. However, d is definitely sente to kill the group through ko, I think
e
1 point gote for either
f
1 point gote for white, sente for black
g
1 point sente for white, gote for black

Hmm. That leaves me wanting to play something like this:


[Diagram]
Diag.: Playable endgame?

[Diagram]
Diag.: Playable endgame?


Note by HolIgor. I am not ready to post my variation yet. Maximum I got was 7 points for white. But I can criticize others though. In the diagram above black's 6 should be at 'a', then 7 and sooner or later white is forced to defend a point at 'b'. I don't think white would play 7 and fight ko. Point 'c' is exposed to white's attack too.

MortenPahle: Don't know what I was thinking leaving 'c' :~/ But, more to the point, why would white answer black 6 at 'a' by filling the ko? The ko has no value except for a half-point in gote?


[Diagram]
Diag.: Playable endgame?

Circled points are dame. That leaves white with 30 points of territory and black with 20 + 1 prisoner, i.e. white wins with 9.

However, I have great difficulty in assessing the size of the moves, and the right sequence of play, so I'm sure that this is not optimal.

--MortenPahle



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