Life In 19x19

Posted: **Sat Nov 05, 2011 10:24 am**

Here it is, try not to laugh too hard (At me that is.)

Thanks and God bless,
Adam

Posted: **Sat Nov 05, 2011 10:38 am**

Just a few comments on the first few moves, on some general mistakes during them.

7: Usually it is not so great to do the 3-3 invasion so soon, because white will have the whole game to use the big wall he gets, so the wall is usually better than the territory that you get in return.

15: Very bad shape. IF you feel you need to protect yourself here, always look at N2 first - if white plays M2, you get O2 anyway to save your stone, but white has a cutting point at M3. In the game, white can play N2 himself and have no cutting point there.

19: Same as before applies, but again white does not make the wall so it turns out okay.

25: White has two cutting points in the top right, but he can fix them both if you give him another move. If white plays Q15 now, for instance, your corner is sealed in and the Q13 stone is lonely in white's strong area. Instead, think about playing Q15 or P16 yourself. If you look at the variations, you'll see white can't stop you capturing at least one stone and breaking further into the middle.

Posted: **Sat Nov 05, 2011 11:08 am**

13: A good rule of thumb to keep in mind: try to connect your stones and disconnect his. P4 separates his.

Also, he should be trying to keep you in the corner. When you invade at the 3-3 point, you get the corner territory. He should be able to get compensation for that by trapping you in the corner and building a wall to use for influence.
You have gotten your territory, but if you push through at P4, he won't get the influence that he ought to be able to get.

15: As Amnal says, the hane gets you more room. S4 is a useful hane too.
But this is only a good move IF you must resort to a hane. Right now, you can walk out into the center. If he tries to stop you, some white stones die. ( You play P5, he blocks with P4, you try again with O4, he blocks with O5, you atari with Q5, he protects, then you kill Q4 and R4. )

The important thing to note here is that you want to get out in the center. Just because you can live small in the corner, does not mean that doing so should be your primary goal. Often you may settle for living small in the corner, but that is only as a last resort when you cannot get out. Here, white has failed to lock you in, and in doing so has made a serious strategic mistake.

25: Again, try to separate your opponenent's stones. When he leaves cutting points like O15 and P14, you can cut him. Maybe you kill something, or maybe you just keep him busy making small moves to defend himself.

Posted: **Sat Nov 05, 2011 11:09 am**

Since I posted about it on the other thread, I'll emphasize reading practice:

reading practice

27: what if 27 is at P16?

39: obviously o14 doesn't save the two black stones. Is there any move that does?

47: common second line shape. Verify that s15 is unconditionally dead.

49: can black's three stones in the corner make two eyes?

59: misread

69: note that e18 can be captured by white at any time. It's the same shape as s15 earlier.

74: yup.

85: excellent! did you read it out?

109: A natural idea, but also note that if black has a move to reduce the
white group at G14 to one eye. Can you spot it?

. One option would be to play around J11, sealing white in. White has to defend to live, giving you sente to continue the attack.

110: seems a misplay by white, you played well to exploit the cut.

125: Just descend to E8. That single stone doesn't matter at all. You have bigger plans!

127: again, wrong direction.

129: this painful shape is a result of the wrong plays earlier.

141: this is a very complicated fight, reading it all out is above my ability. But a few things to think about:
1) Can I win even if white lives? Maybe it's enough to seal white in.
2) C5 is very big for white, threatening your corner stones.
3) j3 is big also, preventing white from getting a base.

Posted: **Sat Nov 05, 2011 11:16 am**

Move 41 is what is known as making an 'empty triangle'. Empty triangles are generally bad.
How many liberties did you have before move 21? ( ans = 2 ) How many liberties do you have after you made it? ( ans = 2 ) So what is your net gain here? You expend a move, you invest a stone that may die, and what do you get for it?

Posted: **Sat Nov 05, 2011 11:56 am**

just some rude comments...

Life In 19x19

19k vs 19k Get ready for some Excitement!

19k vs 19k Get ready for some Excitement!

Re: 19k vs 19k Get ready for some Excitement!

Re: 19k vs 19k Get ready for some Excitement!

Re: 19k vs 19k Get ready for some Excitement!

Re: 19k vs 19k Get ready for some Excitement!

Re: 19k vs 19k Get ready for some Excitement!