Not a move I was expecting. I realized looking through my old posts that it's been a while since I explained the main line of play I was expecting, so to clarify I was expecting white to move at either 'a' or 'b' below:
I guess this was double sente for both sides. If I ignore white, I think white can either kill or force me to live really small. I don't see a way to respond to white in sente.
My guess is that white wants to force me to burn the aji of my two black stones so that he can loose ladder my cutting stone. But I think I can defend without ruining the aji of my black stones.
Tactics and Variations
So the goal here is to make moves to secure my corner without forcing white to remove any liberties on my two captured black stones. Towards that end, I don't want to touch white's two stones if I don't have to.
If I were aggressively defending, I could do this sequence:
But white's removal of those two black stones makes white nice and thick.
With just descending (25 at 29), if white tries anything funny I can revert to this sequence as my ace in the hole, since it's a series of forcing moves.
As planned... I opted for one space closer to my corner to prevent his invasion + ideal extension, it makes things too easy for him to find responses.
Tactics and Variations
Not much to say here, other than my plans on my B4 probe - if he hanes, I'll clamp at D4 - it seems pretty annoying. If he extends up, I'll shoulder hit with G4 and then live in the corner. If he extends down, I'll take my point in the top left. I may not get to play it though, as it depends on his next move.
White moved in one of the two directions I was thinking he would. I think his extension here is thin, though. I could ignore it, but if he goes back and repairs the weakness it's as if he played correctly from the start (that is, it's a bad move with some good follow ups).
The other side of this is that if I try to punish white, it's very easy for me to do it wrong and end up just giving him a nice position as he treats the played stone as a sacrifice
Tactics and Variations
White is too close to my thickness on the bottom. At least, ignoring the right side he is. I'm not sure if his stones to the right change matters. I guess it does since it allows white's stone to flee towards strength.
Anyway, this is the first thought which occurs to me:
Or something like that. But since white can run towards thickness all I end up doing is creating a weak group for white to chase.
If I ignore white, and extend on the left as far as I can given white's wall, there's a good followup for white on the left. This gives white a strong moyo bordering on solid territory. (I just realize I've neglected an extension from the bottom left corner, but this is roughly how things might progress). Black ends up with more potential territory, and white still doesn't have anything moyo-like in the center to really take advantage of his thickness.
Below, I consider moves around 'a' and 'b' to be more or less miai. Black playing 'a' would obviously be too cramped (overconcentrated). 'b' approaches a strong white position, yes, but it does so from a roughly equal black position, so it mostly just ends up cramping white.
There's also a low invasion to consider. But it can't really make a base, and it can't really run effectively, and even if it lives white gains more influence.
Last, there's white's corner to consider. Ideally I want to share the corner with white, and force white to develop the left while I take the top, since it agrees well with my star stone. 'c' potentially reverts to the fight in the lower right. I don't think that ended well, so I'm not going to do that. 'b' is too cowardly. I take the corner while white gets the center and sides. 'e' can be pressed effectively by white to the 3rd line or shoved into the corner by the shoulder hit at 'f'. So it's not great in my opinion. 'a' is interesting. White will probably take the corner and I can extend to make the top work. He might also pincer, and then things get complicated, of course, but it's still situated to make an enclosure at 'b' or a line higher, if it comes to that. 'd' is also interesting, since it leads to double approach 4-4 stone joseki (not that I know them very well).
Playing in the corner seems like the biggest move to make, so I think I'll definitely do that. So it's a choice between 4-4 at 'd' and the 5-4 at 'f'. I'd be more comfortable with 'd', but I think 'f' leads more easily to controlling the top and letting white develop the left.
I don't know really how white will respond, but here's one possible continuation. I don't think it could be considered joseki since white gets practically the entire corner. But something like this is what I'd like to see.
Posts: 2116 Location: Silicon Valley Liked others: 152 Was liked: 330
Rank: 2d AGA
GD Posts: 1193
KGS: lavalamp
Tygem: imapenguin
IGS: lavalamp
OGS: daniel_the_smith
Eek!
A) I very much doubt white has made a mistake detectable at 8k level on the left. (maybe a pro would go on to crush him) B) Black has no thickness at the bottom for white to be too close to. C) Black at D6 (a) is probably not all that bad.
I was going to criticise the choice of approach, but after looking it up it turns out 5-4 is how pros most often approach a 6-4 stone.
_________________ That which can be destroyed by the truth should be. -- My (sadly neglected, but not forgotten) project: http://dailyjoseki.com
i am not much stronger than topagz. but i will say for handycap game you can not play textbook soft moves everytime. you have to bust their brain by making it complex as possible. then they will surely make mistake and when you are ahead you play textbook defense.
_________________ "The more we think we know about The greater the unknown" Words by neil peart, music by geddy lee and alex lifeson
How very remiss of me. This is the first variation I thought of, and I totally forgot to include it in my analysis above. With my general enjoyment of the 6-4 games, this move has been firmly put into my repertoire by the big brother game.
I'm a little skeptical that white can make up 70 points in this game. Black is going to have to make much larger mistakes than we've seen so far...
If Black makes 120 moves and loses 70 points, that's only a loss of 7/12 point per move, on average. I agree that he will have to make larger mistakes, but I think that he has chucked at least 7 points by now.
_________________ The Adkins Principle: At some point, doesn't thinking have to go on? — Winona Adkins
Again, I want the top. White can have the side (that's what he wanted when he played the 6-4 stone anyway). A fair exchange.
Tactics and Variations
Ah, haha. This looked really familiar to me, when I realized this is a reversion to a joseki I actually know. White's weird 6-4 stone is now totally within my comfort zone. 33 and 34 aren't exactly the joseki, but they work well with surrounding stones, so this is more or less what I'm aiming for/expecting (I'm not sure whether the high/low variations for 33 or 34 are better, so take that part of it as a rough guess).
As planned... I opted for one space closer to my corner to prevent his invasion + ideal extension, it makes things too easy for him to find responses.
Tactics and Variations
Not much to say here, other than my plans on my B4 probe - if he hanes, I'll clamp at D4 - it seems pretty annoying. If he extends up, I'll shoulder hit with G4 and then live in the corner. If he extends down, I'll take my point in the top left. I may not get to play it though, as it depends on his next move.
I hope that topazg gives up his idea of a probe at B-04.
The points plus the points are usual plays against the large knight's enclosure. The B-04 point ( ) allows Black to pull back to the 3-3, settling himself easily. With White's thickness on the right and the stone, I would naturally look for an invasion at one of the points.
_________________ The Adkins Principle: At some point, doesn't thinking have to go on? — Winona Adkins
So in passing I heard that you need "5 liberties for tactical stability". It's a weird rule of thumb I don't really understand, but this joseki is a good example of it. Check how many liberties each group has.
Users browsing this forum: No registered users and 1 guest
You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot post attachments in this forum