I found some commentary on one of the 2013 Samsung Cup games between Lee Sedol and Tang Weixing.
In particular, this opening position was discussed:
The article indicated that this progression is somewhat popular, but there are pros with different opinions. Notably, apparently, Go Seigen pointed out that there are reductions from the center around A and B, and also endgame around C and D, so taking these into consideration, black on the left is not great.
In contrast, it says that Lee Sedol had reason for playing this way:
* Black played one less stone than white on the left, so he thought that it didn't have bad efficiency for black
* The shape had thickness
White has 30 points of solid territory and sente, on the other hand.
In the game, Lee Sedol lost, though, I suppose from this commentary, we can see that there are pros with varying opinions on the value of opening positions.
This is somewhat reassuring to me, since I am sometimes confused about what's best.
Can this deviation from joseki be penalized?
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Kirby
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Bill Spight
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Re: Can this deviation from joseki be penalized?
I agree with Lee Sedol about efficiency. And I am not sure that Go Seigen disagrees about that point.Kirby wrote:I found some commentary on one of the 2013 Samsung Cup games between Lee Sedol and Tang Weixing.
In particular, this opening position was discussed:
The article indicated that this progression is somewhat popular, but there are pros with different opinions. Notably, apparently, Go Seigen pointed out that there are reductions from the center around A and B, and also endgame around C and D, so taking these into consideration, black on the left is not great.
In contrast, it says that Lee Sedol had reason for playing this way:
* Black played one less stone than white on the left, so he thought that it didn't have bad efficiency for black
* The shape had thickness
White has 30 points of solid territory and sente, on the other hand.
In the game, Lee Sedol lost, though, I suppose from this commentary, we can see that there are pros with varying opinions on the value of opening positions.
This is somewhat reassuring to me, since I am sometimes confused about what's best.
Besides, if Black plays
instead, then White has 
. After that, can Black do better than to revert to the left side?Slightly OT, since Lee Sedol's play was popular, would Ootakamoku's site say that
in this diagram is WRONG?The Adkins Principle:
At some point, doesn't thinking have to go on?
— Winona Adkins
Visualize whirled peas.
Everything with love. Stay safe.
At some point, doesn't thinking have to go on?
— Winona Adkins
Visualize whirled peas.
Everything with love. Stay safe.