Life in 19x19. Go, Weiqi, Baduk... Thats the life.
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You can sacrifice O17 and get a good result? I'm going to have to think about that one for a while and try to understand it.Cutting there and invading the corner are miai. If black cuts, you take the 3-3. If Black defends 3-3, the cut is no longer large, so you will let him take a stone or two.
edit. I guess miai is the wrong word. Basically, the original approach stone is light.
You might like to study this game I played on OGS years ago (quiller was a lot stronger than 1k, that's a timeout rank; I lost my first game to him): https://online-go.com/game/169785. Typically after the n5 wedge and atari-connect black will o4. This makes the 3-3 somewhat harder to live (q6 high vs r6 low makes a big difference) as after r3 then if black q3 blocks white's can't q2 hane and connect in sente (same idea as in http://www.lifein19x19.com/forum/viewto ... 73#p209473) as the p3 cut doesn't work afterwards with o4, but if black cuts at o6 then that hane and connect is sente so life is fairly comfortable (maybe black wouldn't q3 block in that case). But in that game black didn't even cut, he just protected the 3-3, an interesting but somewhat greedy move. I simply tenukid, as the wedge made my outside stronger so developed my moyo. You can see that later when he cut at o6 I didn't try to save the stones but sacrificed and entered his right side moyo. I probably had some OGS games with the more normal o4 but I can't recall them atm, but that game sticks in my mind.Fedya wrote:You can sacrifice O17 and get a good result? I'm going to have to think about that one for a while and try to understand it.Cutting there and invading the corner are miai. If black cuts, you take the 3-3. If Black defends 3-3, the cut is no longer large, so you will let him take a stone or two.
edit. I guess miai is the wrong word. Basically, the original approach stone is light.
). That's giving me a good deal to think about, too.That's a good question, and one that I wish I had a good answer to. I think it has something to do with my poor sense of weak and strong groups in general. In looking at the games I've posted here, I obviously have difficulty finding the weak points in my opponents' moyos. Consider, for example the position that Bill commented on back in post #193. All I could see was a big moyo, and couldn't find any way to weaken it. And then when I do try to hit my opponents' weak points, the points I pick are often not the right ones. My play at D7 in the most recent game comes to mind.Despite getting surprised like this time and again, you have not developed your spidey sense about your own weak groups. Why is that?
How do I improve my positional evaluation?
The peep at D-07 is not a bad idea. It aims at attacking the Black stones in the bottom left. However, Black gets in the first strike.Fedya wrote:And then when I do try to hit my opponents' weak points, the points I pick are often not the right ones. My play at D7 in the most recent game comes to mind.
There are a couple of books that directly address the subject (e.g. Making Good Shape and Shape Up (free)), but I also think that studying joseki is a good way to learn about shape. If you look at the purpose of the various moves in a joseki, you'll start to get an idea of how far apart stones can be and still be connected, which shapes make the potential for eye space, and where there are weaknesses that the opponent can exploit for some gain. Evaluating joseki also helps you get a good picture of how strong players value territory versus influence, which is key to understanding what kind of shapes you should be making in a particular situation.Fedya wrote:What's the best way to improve knowledge of good/bad shape?
Solving life and death problems probably also helps with shape.jeromie wrote:There are a couple of books that directly address the subject (e.g. Making Good Shape and Shape Up (free)), but I also think that studying joseki is a good way to learn about shape. If you look at the purpose of the various moves in a joseki, you'll start to get an idea of how far apart stones can be and still be connected, which shapes make the potential for eye space, and where there are weaknesses that the opponent can exploit for some gain. Evaluating joseki also helps you get a good picture of how strong players value territory versus influence, which is key to understanding what kind of shapes you should be making in a particular situation.Fedya wrote:What's the best way to improve knowledge of good/bad shape?
In addition to other suggestions, study handicap games, particularly pro-pro handicap games, as Black will almost always make good shape.Fedya wrote:What's the best way to improve knowledge of good/bad shape?
Black to play.