BQM 442

  Difficulty: Advanced   Keywords: EndGame

A problem from two different 7x7 Go investigations.

[Diagram]
what is Blacks best move?  

In 7x7 Go b is mentioned as best move. While on an [ext] SGF about the same problem a is given as best move.

Please high ranking Go players tell me (12 kyu) what is best.

[Diagram]
The throw-in  

Dieter: I am no expert, but here's what I see. Black's throw in forces an extra move inside White's territory later.

[Diagram]
 

If White inadvertently covers the neutral points, Black has the tesuji of B9 to create seki.

[Diagram]
Simple descent  

If Black simply descends, White gains a point with W4. So I'm inclined to vote for the throw-in.

[Diagram]
Ko  

White has a countermeasure though. So, I must think again.


willemien Hi Dieter Thanks for your reply. according to the [ext] Tromp sgf the following is best

[Diagram]
Tromps Continuation (1) 6 at white+circle, 9 at 2  
[Diagram]
Tromps Continuation (2) 3 at white+circle, 21 at white+square  


your remark about the neutral points is valid white needs to add a stone inside his territory so loses a point under territory rules (and this way the problem becomes an wholeboard endgame problem



BQM 442 last edited by willemien on December 13, 2008 - 10:25
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