I know I'm late to the party with this comment (didn't have internet access for a few days) but...
Magicwand wrote:he has a choice of a, b, c, d,
d is pretty recent and complicated.
i assume he will play b. but ..never know what to expect.
$$Bcm1 Prisoners: W=0, B=0
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- Click Here To Show Diagram Code
[go]$$Bcm1 Prisoners: W=0, B=0
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For weaker players reading Magicwand's comments to learn from him, this B is *not* an option. I have no idea at all why he thought Violence would play it. I read that and almost fell out of my chair. The only reason you would ever play this move is if there was some threat on the right side and you needed to defend a weak group there.
*Never* in the opening.
After I recovered I said "well, maybe he knows something I don't" and checked my database of games (gathered piecemeal here and there, but it's fairly extensive nonetheless.)
I turned it up in 6 amateur games (5 were strong amateur -- 6d+ games, one was myself as a 5k versus another 5k on KGS) and only 3 pro games.
The only one of those games where it occurred as an opening move was the 5k vs. 5k game (embarrassingly though, I was the one who played it - and I did lose that game.)
Every other time it was because the game had progressed well beyond the early opening anyway, and players were deviating from joseki to shore up weaknesses in existing groups. As far as I can see, there are no redeeming values to it whatsoever as a move with an open board to the right, and as far as my database says, stronger players tend to agree with me.
$$Bcm1 Prisoners: W=0, B=0
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- Click Here To Show Diagram Code
[go]$$Bcm1 Prisoners: W=0, B=0
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Going over the moves in order:
A: classic - shrinks black's corner, easy to make territory on the right, black is easy to make influence on the bottom. Downside in this case, black's hoshi in the upper right means the territory on the right side might not come to much.
B: awful move - no pressure on black's corner, black is easy to make influence on the bottom, black is easy to squeeze white on the right.
C: thick move - prevents black from making a moyo on the bottom or in the center. Black may catch one stone later to get a large corner.
D: recent variation - less pressure on black's corner, but still some. Black may still make influence over the bottom, but maybe a little less than with A. Easy to find eyespace, so difficult to attack from the right immediately.
Magicwand, when the game is over I
really want to know why you thought white would play B.