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BQM113
Path: BigQuestionMark · Prev: BQM112 · Next: BQM114 Path: MiddleGameAnalysis · Prev: BQM112 · Next:
Difficulty: Intermediate
Keywords: MiddleGame
As I have received quite interesting feedback to my previous posting BQM112 (a big thank you to all contributors), here is another position I have problems with:
I (playing Black) was quite happy with my position when White invaded deeply with
Again I have the usual questions:
Many thanks. Now... what I can say about the position? Estimating the score is not my strong suit, but I'd put Black up by maybe 20-30 before this invasion. There is no doubt, in my mind, anyway, that this White invasion is far too deep. It's a moyo based on thickness, and something this deep shouldn't live. On the other hand, White is far behind, and you're both fairly weak players, I imagine, so perhaps White's best hope is to make a deep invasion and hope that you make a mistake and let her live, in which case your moyo is pretty much ruined. Therefore, White is essentially staking the game on this invasion. You should be able to kill it, and need to do so in order to win.
So, how do you kill it? Obviously, there are too many variations for any of us to read out, but the first thing you should notice is that White has one, and only one escape route. So your first move should be to cut this off. Then, you just need to prevent White from making two eyes, which shouldn't be too hard if you're careful. Without any reading, my first instinct for Black would be a, but maybe even this is too close to the White stone. You should probably be able to swallow it up on a large scale.
As for White, the proper course of action would have been to reduce, not invade. Something like b looks like about the right depth to me, but this is more art than science, and you have to develop a feeling for such things.
HolIgor: This is the second such example. What I noticed is that White is 100% alive with small groups. Is Black sure he did not play a lot of aji keshi?
As to the plan of play, Black is in no hurry. Where are Black's weak points? I think Black has to fix the shape at the top where White's push is unpleasant and deprive the opponent of the pressing moves in the lower left corner. To become thick. Alex Weldon: I know what you mean in the lower left, due to the incomplete joseki (Black wants a stone at f)... but what are you talking about at the top? You must be using the term "push" in a different sense than I'm used to... Zook: Black is ahead. The moyo plus territory in both corners outweighs White's territory. Regardless of that, Black has to attack the invading stone by engulfing it. If he submits with c, White will close the gap and have a chance to come back in the game. If the attack fails, Black should still have territory on the sides. Which shifts the question to "which point" ? My intuition doesn't help me here (OK, it says d) so it's a tactical matter.
This looks a bit thin for Black, but perhaps he wins the fighting anyway.
Attacking from the strong side surely is a bad idea. White's two-space jump is a light move.
I like the shoulder hit best, although I wouldn't have considered it intuitively.
Regardless of Black's choice, White's only possibilities for sabaki lie here. [1] Charles I agree with Andrew here.
After
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