EdLee wrote:For Magicwand and topazg, after the game:Magicwand wrote:i am quite sure that my attack direction is correct one.if you see below..."a" is open$$Bcm11
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$$ -----------------------------------------if you see below...if black plays a then i will play b so black can not easily invade my 3-3 point.
- Click Here To Show Diagram Code
[go]$$Bcm11
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$$ | . . 6 . . . . . . . . . . . . . . . . |
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$$ -----------------------------------------[/go]
for beginners, if you see similar situation now you know which picture i prefer.$$Bcm11
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$$ | . . 7 9 . . . . . . . . . . . . . . . |
$$ | . b 8 . . . . . . . . . . . . X . . . |
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$$ -----------------------------------------
- Click Here To Show Diagram Code
[go]$$Bcm11
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$$ | . . 6 . . . . . . . . . . . . . . . . |
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$$ | . . 7 9 . . . . . . . . . . . . . . . |
$$ | . b 8 . . . . . . . . . . . . X . . . |
$$ | . . . O . 0 . . . O . . O . . , . . . |
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$$ -----------------------------------------[/go]Just to show how difficult Go is, and my ignorance, in my game a few days ago, I blocked withtopazg wrote:I figured he'd take one and I'd take the other, and I suspected this would be the one he'd take.:
$$Bcm67
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$$ | . . 1 . . . . . . . . . . . . . O O . |
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$$ | . . . . . . . . . X . X O O O O X . X |
$$ | . . 3 . . . . . . X X O O X X X . X . |
$$ | . 4 . . . . . . . . O X X X . O X X X |
$$ | . . . O . . . O . . O . . O X O . O . |
$$ | . . . . . O . . . . . O . O O O O . . |
$$ | . . . O . O X O . . . . . . . , X . . |
$$ | . . O . X X X . X . . . . X . X . X . |
$$ | . . . X . . . . . . . . . . . . X . . |
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$$ -----------------------------------------In the game review, a pro comment was I blocked the wrong direction. Instead, this is better for W:
- Click Here To Show Diagram Code
[go]$$Bcm67
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$$ | . . 3 . . . . . . X X O O X X X . X . |
$$ | . 4 . . . . . . . . O X X X . O X X X |
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$$ -----------------------------------------[/go]$$Wc
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$$ | . . 2 4 . . . . . . . . . . . . O . . |
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$$ | . . 1 . . . . . . X . X O O O O X . X |
$$ | . . . . . . . . . X X O O X X X . X . |
$$ | . . . . . . . . . . O X X X . O X X X |
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$$ | . . . O . O X O . . . . . . . , X . . |
$$ | . . O . X X X . X . . . . X . X . X . |
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$$ -----------------------------------------Noting the "similarity" (or so I thought) on the left side of the 4 variations above,
- Click Here To Show Diagram Code
[go]$$Wc
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$$ | . . 2 4 . . . . . . . . . . . . O . . |
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$$ | . . 1 . . . . . . X . X O O O O X . X |
$$ | . . . . . . . . . X X O O X X X . X . |
$$ | . . . . . . . . . . O X X X . O X X X |
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$$ | . . O . X X X . X . . . . X . X . X . |
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$$ -----------------------------------------[/go]
I said, Looks like Magicwand blocked the correct direction with(C11), as pointed out in my game.
To my surprise, pro opinion was, No, it's better in Magicwand's case to block the other direction (C7),
and then the reasons were explained to me. Go is so difficult.
I know nothing about go, but my idea is that the board positions are different in terms of influence. In MW's board position, I think Bill Spight gave a good explanation of why to try a different direction. In particular, white's marked stones have influence and play a part in giving incentive to push black's stones toward that influence:
In my opinion, white's play on the bottom left is more valuable for this reason. Namely, he gets to push black into his area of influence with a move that's probably sente, and he also gets to help the bottom left.
I feel this is a little different from the board position you posted. In particular, while there is influence in the marked area, I feel black and white kind of cancel one another out:
In particular, I really can't feel like white has great influence in the bottom left, because of black's marked stones. That makes me feel that it's less effective to "push" black into white's influence - white doesn't have that much influence, as it's cancelled out...
I don't know if that makes sense, or if it's even correct. But it's a rough idea of how I feel about the situation. I wonder what a pro might think
$$Bcm11 Prisoners: none
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$$ | . . B . . . . . . . . . . . . . . . . |
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$$ | . . B . . . . . . . . . . . . . X . . |
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$$ | . . . O . . . . W . . . . . . . . . . |
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$$ | . . B . . . . . . . . . . . . . . . . |
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$$ | . . B . . . . . . . . . . . . . X . . |
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$$ | . . O . . . . . . . . . . . . . . . . |
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$$ ---------------------------------------
- Click Here To Show Diagram Code
[go]$$Bcm11 Prisoners: none
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$$ | . . . . . X . . . . . . . . . . . . . |
$$ | . . . O . . . X . X . . . . . X . . . |
$$ | . . . . . . W . . . . . . . . . . . . |
$$ | . . . O . . . . W . . . . . . . . . . |
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$$ | . . B . . . . . . . . . . . . . . . . |
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$$ | . . B . . . . . . . . . . . . . X . . |
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$$ | . . O . . . . . . . . . . . . . . . . |
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$$ | . . . . . . . . . . . . . . . X . . . |
$$ | . . . O . . . . . O . . O . . , . . . |
$$ | . . . . . . . . . . . . . . . X . . . |
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$$ ---------------------------------------[/go]
In my opinion, white's play on the bottom left is more valuable for this reason. Namely, he gets to push black into his area of influence with a move that's probably sente, and he also gets to help the bottom left.
I feel this is a little different from the board position you posted. In particular, while there is influence in the marked area, I feel black and white kind of cancel one another out:
$$Wc
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$$ | . . . . . . . . . . . . . . . . O . . |
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$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . X . . . . . . . . . . . . . O O . |
$$ | . . . , . . . . . , B O O . . X O X . |
$$ | . . . . . . . . . B . X O O O O X . X |
$$ | . . . . . . . . . B X O O X X X . X . |
$$ | . . . . . . . . . . O X X X . O X X X |
$$ | . . . W . . . W . . O . . O X O . O . |
$$ | . . . . . W . . . . . O . O O O O . . |
$$ | . . . O . O X O . . . . . . . , X . . |
$$ | . . O . X X X . X . . . . X . X . X . |
$$ | . . . X . . . . . . . . . . . . X . . |
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$$ -----------------------------------------
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$$ | . . . . . . . . . . . . . . . . O . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . X . . . . . . . . . . . . . O O . |
$$ | . . . , . . . . . , B O O . . X O X . |
$$ | . . . . . . . . . B . X O O O O X . X |
$$ | . . . . . . . . . B X O O X X X . X . |
$$ | . . . . . . . . . . O X X X . O X X X |
$$ | . . . W . . . W . . O . . O X O . O . |
$$ | . . . . . W . . . . . O . O O O O . . |
$$ | . . . O . O X O . . . . . . . , X . . |
$$ | . . O . X X X . X . . . . X . X . X . |
$$ | . . . X . . . . . . . . . . . . X . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ -----------------------------------------
- Click Here To Show Diagram Code
[go]$$Wc
$$ -----------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . X . . . . . |
$$ | . . . O . . . . . , . . . . . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . O . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . X . . . . . . . . . . . . . O O . |
$$ | . . . , . . . . . , B O O . . X O X . |
$$ | . . . . . . . . . B . X O O O O X . X |
$$ | . . . . . . . . . B X O O X X X . X . |
$$ | . . . . . . . . . . O X X X . O X X X |
$$ | . . . W . . . W . . O . . O X O . O . |
$$ | . . . . . W . . . . . O . O O O O . . |
$$ | . . . O . O X O . . . . . . . , X . . |
$$ | . . O . X X X . X . . . . X . X . X . |
$$ | . . . X . . . . . . . . . . . . X . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ -----------------------------------------[/go]
In particular, I really can't feel like white has great influence in the bottom left, because of black's marked stones. That makes me feel that it's less effective to "push" black into white's influence - white doesn't have that much influence, as it's cancelled out...
I don't know if that makes sense, or if it's even correct. But it's a rough idea of how I feel about the situation. I wonder what a pro might think
:
(C11), as pointed out in my game.
blocking at C9 kind of makes a perfect shape with the
stones:
here is the bogie move that I can't find a resistance I'm completely satisfied with, but the principle remains. I don't want to get sealed in, and I don't want that poor marked Black stone to end up on dame serving no purpose. Worst case scenario I still score more points on the top edge, and my shape is sound.