# A sample problem. [#1537]

FredK: A sample problem. (2008-08-28 03:36) [#5035]

Here is a sample problem from Takemiya's book. I will post Takemiya's solution in about one week.

"Absolutely one best move."

White to play. There is "absolutely one move" to play, very large. Suggestions?

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tapir: Re: A sample problem. (2008-08-30 12:12) [#5044]

What about a white kosumi in the center? (a7 in Audouard Coordinates)

AndyPierce: kyu guess (2008-08-28 04:15) [#5036]
"Absolutely one best move."

Andy Pierce: I guess a. There's no urgent life-or-death moves on the board. If black gets to invade under the hoshi stone in the upper right, the usefulness of most of white's stones in this part of the board is badly hurt.

78.22.133.140: ((no subject)) (2008-08-29 10:15) [#5041]

Same here. Dieter

Unkx80: ((no subject)) (2008-08-29 10:26) [#5042]
"Absolutely one best move."

The first place that comes to my mind is or a.

One question to ask is, how big is the center?

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kokiri: Re: ((no subject)) (2008-08-29 11:52) [#5043]
"Absolutely one best move."

My first impulse is to play one of the bs. I'm not quite sure which. The middle does look a bit scary, but I can't see how to reduce it significantly.

Also, is the endgame of , , really gote for white, given something like a as a threat?

JoelR: ((no subject)) (2008-08-31 23:29) [#5050]
Status of left?

JoelR: If I were facing this board, I'd kick myself for having let the left get so big. White's chain of doesn't seem like compensation. So, can I play ?

FredK: Takemiya's solution. (2008-09-06 14:48) [#5052]

Takemiya's solution:

Solution:

According to Takemiya, is "absolutely" the best move. Otherwise, B could play as in the diagram below, giving W some evident grief.

He says also that instead of as above, at a in this diagram is comparatively small -- it might be followed by Bb, Wc, Bd, and We.

He does not discuss any other alternatives or followups.

My own choice had been to play at x in the Solution diagram, apparently a near miss.

I suppose that although moves at either of the a's in the solution diagram defend the corner, they still allow B to play at 1 in sente, erasing W a bit. Could B then still play ?

On the other hand, it seems that after Takemiya's , B could still invade at one of those a's. It would be nice to know what W should reasonably expect to happen after , to help see why is still the biggest move.

85.178.18.107: ((no subject)) (2008-09-06 12:32) [#5053]

The problem illustrates 2 of Takemiya's ideas. Connect your stones, sa a priority to make them strong (thick play) and because it is big.

The answer to white's invasion - c - also illustrates his views. B plays out to cut w's connections, and plays to surround w, even if it loses some points.

Takemiya really does not worry about territory in the middle game. Something we amateurs find it very very hard to "feel" is right, and a habit deeply ingrained.