Life in 19x19. Go, Weiqi, Baduk... Thats the life.
https://lifein19x19.com/
Well, I didn't know that when I was at Fedya's level. I didn't even know it when I was 4 kyu.dfan wrote: This should be standard knowledge by your level.
in this diagram gives Black the good move at 
.Ha, so the answer really is #4! But yes, White is alive because Black hasn't blocked it yet (or White could just start with a in my diagram and then pull back to make the L+2 which is alive). Thank you!Majordomo wrote:Isn't the L+1 unsettled? Aka whoever has sente can kill? However in your example black would need to block at A so white is alive.
Wow, that is surprising. I thought that both the sente-threaten-to-connect sequence (which you learn as soon as you get your 4-4 keima approach pincered, jump in to the 3-3, and then get cut off) and the L group knowledge (which of course I embarrassingly misworded) were things ones learns around 10k. It just goes to show you that everybody learns things in a different order.Bill Spight wrote:Well, I didn't know that when I was at Fedya's level. I didn't even know it when I was 4 kyu.dfan wrote: This should be standard knowledge by your level.
Things have advanced quite a bit since you were 4k. For one thing, 4k then is probably 8k now.Bill Spight wrote: Well, I didn't know that when I was at Fedya's level. I didn't even know it when I was 4 kyu.
Apparently I have some pretty big holes in my game.dfan wrote: This should be standard knowledge by your level.
No, I didn't know that. All I saw was that I was well behind, and couldn't see any better way of reducing Black's big group on the right side.(Maybe you can playat a, but at the very least
In the game I played:My advice for how to see this next time depends on which of the following is true:
- You didn't know the standard 1-2-3-4 sente sequence, threatening to connect
- You didn't know that the L+1 shape is alive (edit: that is, White to move can live, thanks Majordomo)
- You knew all this but somehow couldn't put it all together
- I am wrong about whether this sequence works
didn't seem right since I realized Black would clamp at S18. It was only after playing T18 that I realized Black would play S19.I thought I was way behind! Trying to take away some of Black's territory was more urgent than playing gote moves just to make certain another group wouldn't be attacked!(Edit: By the way, I think it was more important to look to the safety of your bottom right group than play the 3-3 invasion. Urgent before big.)
The sequence was actually approach, pincer, jump, Black jump to P8, slide, Black jump to O4, jump, 3-3, J3. After the jump to P8, I didn't know what to do next. I've since looked it up on josekipedia; I don't particularly understand the ideas behind their suggestions. I'll have to think about that for a while.Question about your game Fedya - in the lower right, did it play out something like approach, pincer, jump, extend, slide, 3-3, and then you tenuki? I always thought (as a general rule) you avoided to do the slide because you can play Q9 after you jump up and your opponent plays 04 - then you save the 3-3 for later, since if you slide you remove the possibility of that?
Or shodan in Japan.DrStraw wrote:Things have advanced quite a bit since you were 4k. For one thing, 4k then is probably 8k now.Bill Spight wrote: Well, I didn't know that when I was at Fedya's level. I didn't even know it when I was 4 kyu.
That's great! It means there is a really obvious and easy hole to patch. I am always really happy when I find out that I was missing some fundamental knowledge that I should have acquired by now, because addressing it now is usually pretty easy and makes a noticeable difference, as opposed to the laborious task of upgrading a maxed-out 6k brain to a 5k brain.Fedya wrote:Apparently I have some pretty big holes in my game.dfan wrote: This should be standard knowledge by your level.
OK, that is another thing to learn for next time. Usually when you jump into the 3-3 point, your opponent will seal you in, which means he will have more strength against your nearby stones than before. You have probably seen this happen a hundred times, perhaps without thinking about it; now you can think about it.No, I didn't know that. All I saw was that I was well behind, and couldn't see any better way of reducing Black's big group on the right side.(Maybe you can play
In the saying "urgent before big", "urgent" refers to life or death and "big" refers to points. By the way, your 3-3 invasion is almost certainly going to be gote.I thought I was way behind! Trying to take away some of Black's territory was more urgent than playing gote moves just to make certain another group wouldn't be attacked!(Edit: By the way, I think it was more important to look to the safety of your bottom right group than play the 3-3 invasion. Urgent before big.)
Hear, hear!dfan wrote:That's great! It means there is a really obvious and easy hole to patch. I am always really happy when I find out that I was missing some fundamental knowledge that I should have acquired by now, because addressing it now is usually pretty easy and makes a noticeable difference, as opposed to the laborious task of upgrading a maxed-out 6k brain to a 5k brain.Fedya wrote:Apparently I have some pretty big holes in my game.dfan wrote: This should be standard knowledge by your level.
Every middle SDK has large gaps in their go knowledge. Getting a good grounding in the basics is a good way to make progress.
stones. The reducing play at "d" is interesting, and is locally a shape play, but it, too, can end up weakening the already weak White group. "e" is an interesting invasion, threatening to go into the corner or into the side. But it is only an invasion. "f" is big, threatening to kill the corner; almost double sente. "g" is big, the double keima on the frontier of frameworks. Don't let the double keima get away.
and 
prepare the way for the double keima at 
, preventing the push and cut. White has strengthened his weak stones, and weakened the 
stones. Now plays like "a" and "b" are live options, and White still has the possibilities of "c" and "d".Leaning attacks are by definition aji-keshi -- you are cashing in on the aji in one particular way (asking your opponent to repair a defect), in order to gain strength to advance an attack elsewhere. In this particular situation, B is already low on the bottom, so forcing him to make territory there is fine. Since these moves are aji-keshi, they should be played only after B commits to running in this direction, when you know they will be useful in the attack.Fedya wrote:P4 and N4 are strong moves? P4 in particular looks like aji keshi to me, just asking Black to repair the defect at P3.3) Consider the possibility of a leaning attack, as a means of strengthening your position in the direction where B will be running. On the bottom, you have several really strong forcing moves like P4 and N4. This means that the Q5 stones are really much stronger than they may appear. On the top, you have only O14, and that move is not very severe.
aji keshi & aji cash-in.Leaning attacks are by definition aji-keshi -- you are cashing in on the aji