Life In 19x19

Posted: **Mon Dec 22, 2014 1:45 pm**

Another loss.

Here's my review.

Posted: **Mon Dec 22, 2014 1:53 pm**

Some learning points.

Position 1

Click Here To Show Diagram Code: [go]$$ Position at move 31 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . . . . . . . . . O . . . . . | $$ | . . O , . . . . . O . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . X . . . . . . . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . W . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . X X . . . . . | $$ | . . . O . . . . . , . . X O X X X . . | $$ | . . . . . . . . . . . X X O X O O . . | $$ | . . . . . . . . . . . . O O O . O . . | $$ | . . . . . . . . . . . . . O . O . . . | $$ ---------------------------------------[/go]

In the game I pincered. Probably wiser to simply answer.

Click Here To Show Diagram Code: [go]$$ Position at move 31 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . . . . . . . . . O . . . . . | $$ | . . O , . . . . . O . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . X . . . . . . . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . X X . . . . . | $$ | . . . O . . . . . , . . X O X X X . . | $$ | . . . . . W . . . . . X X O X O O . . | $$ | . . . . . . . . . . . . O O O . O . . | $$ | . . . . . . . . . . . . . O . O . . . | $$ ---------------------------------------[/go]

Position 2

Click Here To Show Diagram Code: [go]$$ Position at move 68 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . X . . . | $$ | . . . O . . . . . . . . . O . . . . . | $$ | . . O , . . . . . O . . . . . X . . . | $$ | . . . . . . . . . . . . . O . . . . . | $$ | . . . X . . . . . . . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . O O X . . . . . . . . . . . . W . . | $$ | . . O X . . . . . . . . . . . . . . . | $$ | . O X X . . . . . , . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . O X . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . X O . . | $$ | . X X . X . . . . . . . . . . . X O . | $$ | . X O . . . . . . . . . X X . X . X O | $$ | . O . O O O . O . , . . X O X X X O . | $$ | . . . O X . . X X . . X X O X O O . . | $$ | . . . O . X . . . . . . O O O . O . . | $$ | . . . . . . . . . . . . . O . O . . . | $$ ---------------------------------------[/go]

This is probably an overplay. White is losing, but I don't think it's the right way to play. Maybe trying to aid the territorial balance?

Click Here To Show Diagram Code: [go]$$ Position at move 68 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . X . . . | $$ | . . . O . . . . . . . . . O . . . . . | $$ | . . O , . . W . . O . . . . . X . . . | $$ | . . . . . . . . . . . . . O . . . . . | $$ | . . . X . . . . . . . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . O O X . . . . . . . . . . . . . . . | $$ | . . O X . . . . . . . . . . . . . . . | $$ | . O X X . . . . . , . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . O X . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . X O . . | $$ | . X X . X . . . . . . . . . . . X O . | $$ | . X O . . . . . . . . . X X . X . X O | $$ | . O . O O O . O . , . . X O X X X O . | $$ | . . . O X . . X X . . X X O X O O . . | $$ | . . . O . X . . . . . . O O O . O . . | $$ | . . . . . . . . . . . . . O . O . . . | $$ ---------------------------------------[/go]

I'm not sure, but the move in the game seemed bad. The game is already bad after the bottom left corner, but I don't know where to do better, since I had reason for each of those moves.

Position 3

Click Here To Show Diagram Code: [go]$$ Position at move 74 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . X . . . | $$ | . . . O . . . . . . . . . O . . . . . | $$ | . . O , . . . . . O . W . . . X . . . | $$ | . . . . . . . . . . . . . O . . . . . | $$ | . . . X . . . . . . . . X X . X X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . O O X . . . . . . . . . . O . O . . | $$ | . . O X . . . . . . . . . O . . . . . | $$ | . O X X . . . . . , . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . O X . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . X O . . | $$ | . X X . X . . . . . . . . . . . X O . | $$ | . X O . . . . . . . . . X X . X . X O | $$ | . O . O O O . O . , . . X O X X X O . | $$ | . . . O X . . X X . . X X O X O O . . | $$ | . . . O . X . . . . . . O O O . O . . | $$ | . . . . . . . . . . . . . O . O . . . | $$ ---------------------------------------[/go]

Greedy. I may be behind, but I need to help the weak group.

Click Here To Show Diagram Code: [go]$$ Position at move 74 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . X . . . | $$ | . . . O . . . . . . . . . O . . . . . | $$ | . . O , . . . . . O . . . . . X . . . | $$ | . . . . . . . . . . . . . O . . . . . | $$ | . . . X . . . . . . . . X X . X X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . O O X . . . . . . . . . . O . O . . | $$ | . . O X . . . . . . . W . O . . . . . | $$ | . O X X . . . . . , . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . O X . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . X O . . | $$ | . X X . X . . . . . . . . . . . X O . | $$ | . X O . . . . . . . . . X X . X . X O | $$ | . O . O O O . O . , . . X O X X X O . | $$ | . . . O X . . X X . . X X O X O O . . | $$ | . . . O . X . . . . . . O O O . O . . | $$ | . . . . . . . . . . . . . O . O . . . | $$ ---------------------------------------[/go]

Position 4

Click Here To Show Diagram Code: [go]$$W Moves 110 to 110 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . W X . . . | $$ | . . . O X . . . . . . . . O . . . . . | $$ | . . O , X . O . . O . O . . . X . . . | $$ | . . . . . . . . . . O . . O . . . . . | $$ | . . . X . . . . . X O X X X . X X . . | $$ | . . . . . . . . O O X X . . . . . . . | $$ | . O O X . . O O . . . O X X O . O . . | $$ | . . O X . X . . X X X X O O X . . . . | $$ | . O X X . X O O . O . O . . . X . . . | $$ | . . . . . . . O . O . . O . . . X . . | $$ | . . O X . . O . X . . . . . . . . . . | $$ | . . . . . . X X . . . . . . . X O . . | $$ | . X X . X . . . . . . . . . . . X O . | $$ | . X O . . . . . . . . . X X . X . X O | $$ | . O . O O O . O . , . . X O X X X O . | $$ | . . . O X . . X X . . X X O X O O . . | $$ | . . . O . X . . . . . . O O O . O . . | $$ | . . . . . . . . . . . . . O . O . . . | $$ ---------------------------------------[/go]

I just assumed that this move was sente. But it's not clear that it is. I certainly didn't read out a way to make it work effectively in the game, even though I lived by luck.

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Overall:
1. Even though I am behind, don't be greedy - I'll get further behind.
2. Something went wrong in the bottom left corner - I don't know exactly what. But it wasn't good. Probably should have just not pincered.
3. Often, helping weak group is more urgent than defending territory.

Posted: **Tue Dec 23, 2014 2:50 am**

Kirby wrote: 2. Something went wrong in the bottom left corner - I don't know exactly what. But it wasn't good. Probably should have just not pincered.

I think pincer is ok direction, but perhaps low and close is wrong given black's influence, how about 2 space high? But the real problem was you tenukid c10 and that area was still urgent, how about one space jump? And I don't much like your choice of tenuki to r7 as it makes r12 invasion harder and that seems a bigger area to invade to me. Also the c12 invasion I don't like as black is happy to connect and make a nice wall with d12 attach (b14 slide was available so that was a small area anyway). If you do invade there I think it's got to be high at d12 to split and attack d14.

Posted: **Tue Dec 23, 2014 9:24 am**

A couple of comments.

I agree with Uberdude, the 2 space high pincer looks better.

Why not F-03?

I agree with Uberdude, the bottom left is urgent. Given Black's surrounding strength, I think that sacrificing the pincer is OK. So how about a jump to B-04?

Why do you think that you are behind? (Yeah, you are not getting komi, but this is no time to panic.

) A simple one space jump to O-13 is good. It reduces the Black moyo, expands the White moyo, and threatens to invade the right side. A bread and butter move.

Yes, your weak group is important.

W110: Yes, on the top side G-18 looks bigger. And what about the left side (B-14)?

Posted: **Tue Dec 23, 2014 2:07 pm**

Thanks for the comments. The two-space pincer is a good idea, and I especially think it's a good point about choosing the wrong invasion to start with.

Posted: **Tue Dec 23, 2014 2:09 pm**

Chalked up another loss today. I had a winning streak earlier, so I haven't quite demoted in rank. I'll try to turn it around before that happens.

Anyway, here's my review.

Posted: **Tue Dec 23, 2014 2:20 pm**

Some learning points.

Position 1

Click Here To Show Diagram Code: [go]$$B Moves 15 to 15 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . X . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . X O . . | $$ | . . O O . O B . . , . . . . . , . . . | $$ | . . X . . X . . O . . O . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

I don't have much of an excuse here. I've seen this shape before. But I responded incorrectly here:

Click Here To Show Diagram Code: [go]$$B Moves 15 to 15 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . X . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . X O . . | $$ | . . O O . O 1 . . , . . . . . , . . . | $$ | . . X 2 . X . . O . . O . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

If I go the route of protecting the corner, I should play here:

Click Here To Show Diagram Code: [go]$$B Moves 15 to 15 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . X . 8 . . . . . . . . . . . . . | $$ | . . . . . 3 6 . . . . . . . . X O . . | $$ | . . O O 4 O 1 7 . , . . . . . , . . . | $$ | . . X . 2 X . . O . . O . . . X . . . | $$ | . . . 0 9 . 5 . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

My opponent may deviate along the way, and it's complicated. But I think it's safe to say that

, above, is better than what I played - it puts more pressure on his stones, and doesn't think only of the corner stone - which still had aji, anyway!

Also, the variation I thought was bad, has been played by pros (locally), so maybe I should have considered that, too.

Click Here To Show Diagram Code: [go]$$B Moves 15 to 15 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . X . . . . . . . . . . . . . . . | $$ | . . . . . 2 . . . . . . . . . X O . . | $$ | . . O O . O 1 . . , . . . . . , . . . | $$ | . . X 3 . X 4 . O . . O . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Position 2

At the time, I didn't realize the corner aji when I played here:

Click Here To Show Diagram Code: [go]$$W Moves 22 to 22 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . X . O . . . . . . . . . . . . . | $$ | . . . . X O . . . . . . . . . X O . . | $$ | . . O O X O X . . , . . . . . , . . . | $$ | . . X O X X W . O . . O . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

I've already messed up, so maybe it's OK, but I could also consider helping the corner aji, since I've already messed up:

Click Here To Show Diagram Code: [go]$$W Moves 22 to 22 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . X . O . . . . . . . . . . . . . | $$ | . . . . X O . . . . . . . . . X O . . | $$ | . . O O X O X . . , . . . . . , . . . | $$ | . . X O X X . . O . . O . . . X . . . | $$ | . . . W . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Black is better for sure, but maybe I can recover better than in the game.

Position 3

Click Here To Show Diagram Code: [go]$$B Moves 57 to 57 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O X . W . . . . . . . . . . . . . | $$ | . . . O X . . X . . . . . O . . . . . | $$ | . . . O . . . . . O . . . . . X . . . | $$ | . . . O . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , . . . | $$ | . . X X . . . . . . . . . . . . . . . | $$ | . O O X . . . . . . . . . . . . X . . | $$ | . O X . . X . . . . . . . . . . . . . | $$ | . O . X . O . X . . . . . . . . . . . | $$ | O X X X X O . . . . . . . . . X O . . | $$ | . O O O X O X X X , . . . . . , X . . | $$ | . O . O X X O X O O . O . . . X . . . | $$ | . . O X . . O O . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

I played as above in the game, but I think it's clear that this is better:

Click Here To Show Diagram Code: [go]$$B Moves 57 to 57 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O X . . . . W . . . . . . . . . . | $$ | . . . O X . . X . . . . . O . . . . . | $$ | . . . O . . . . . O . . . . . X . . . | $$ | . . . O . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , . . . | $$ | . . X X . . . . . . . . . . . . . . . | $$ | . O O X . . . . . . . . . . . . X . . | $$ | . O X . . X . . . . . . . . . . . . . | $$ | . O . X . O . X . . . . . . . . . . . | $$ | O X X X X O . . . . . . . . . X O . . | $$ | . O O O X O X X X , . . . . . , X . . | $$ | . O . O X X O X O O . O . . . X . . . | $$ | . . O X . . O O . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Position 4

Finally, my "ko threat" here was obviously a hallucination:

Click Here To Show Diagram Code: [go]$$W Moves 76 to 76 $$ --------------------------------------- $$ | . . . . . . . . . . O . . . . . . . . | $$ | . . O X . O . . . O X O . . . . . . . | $$ | . . . O X . . X X X . X . O . . . . . | $$ | . . . O . . . . . O X . . . . X . . . | $$ | . . . O . . . X . O O . . . . . . . . | $$ | . . . . . . . . . . . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , . . . | $$ | . . X X . . . . . . . . . . . . . . . | $$ | . O O X . . . . . . . . . . . . X . . | $$ | . O X . . X O . . . . . . . . . . . . | $$ | . O . X . O X X . . . . . . . . . . . | $$ | O X X X X O . . . . . . . . . X O . . | $$ | . O O O X O X X X , . . . . . , X . . | $$ | . O . O X X O X O O . O . . . X . . . | $$ | . . O X . W O O . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

I was silly to imagine he'd save the single stone as here:

Click Here To Show Diagram Code: [go]$$W Moves 76 to 76 $$ --------------------------------------- $$ | . . . . . . . . . . O . . . . . . . . | $$ | . . O X . O . . . O X O . . . . . . . | $$ | . . . O X . . X X X . X . O . . . . . | $$ | . . . O . . . . . O X . . . . X . . . | $$ | . . . O . . . X . O O . . . . . . . . | $$ | . . . . . . . . . . . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , . . . | $$ | . . X X . . . . . . . . . . . . . . . | $$ | . O O X . 4 . . . . . . . . . . X . . | $$ | . O X 5 3 X O . . . . . . . . . . . . | $$ | . O 6 X . O X X . . . . . . . . . . . | $$ | O X X X X O . . . . . . . . . X O . . | $$ | . O O O X O X X X , . . . . . , X . . | $$ | . O . O X X O X O O . O . . . X . . . | $$ | . . O X 7 1 O O . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Of course, black can simply take my stones, still :-S

Click Here To Show Diagram Code: [go]$$W Moves 76 to 76 $$ --------------------------------------- $$ | . . . . . . . . . . O . . . . . . . . | $$ | . . O X . O . . . O X O . . . . . . . | $$ | . . . O X . . X X X . X . O . . . . . | $$ | . . . O . . . . . O X . . . . X . . . | $$ | . . . O . . . X . O O . . . . . . . . | $$ | . . . . . . . . . . . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , . . . | $$ | . . X X . . . . . . . . . . . . . . . | $$ | . O O X . 4 . . . . . . . . . . X . . | $$ | . O X 5 3 X O . . . . . . . . . . . . | $$ | . O . X 6 O X X . . . . . . . . . . . | $$ | O X X X X O . . . . . . . . . X O . . | $$ | . O O O X O X X X , . . . . . , X . . | $$ | . O . O X X O X O O . O . . . X . . . | $$ | . . O X . 1 O O . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Game over.

---

Overall:
1. Mostly, I made joseki mistakes and reading mistakes this game, I feel.
2. Position 3 was the wrong idea. I should attack while making profit, as in the variation I showed. The value I obtained by taking away some eyespace was nothing compared to what he got by attaching to my stone.

Posted: **Fri Dec 26, 2014 1:10 am**

One extra issue that you seem to have currently is that your counting looks unreliable. You keep claiming that you are behind in situations that do not look that bad to my eye. However, I am extremely poor at counting (reliably) so I needed a little support in my opinion. Since GoGoD + kombilo wouldn't do the trick this time, I turned to my other advisor, Crazy Stone 2013. I loaded up the 2-stone game that you introduced in post #258, set the analysis time to 8 hours (max), and let it rip overnight. Of course CS barfed on the variations or something (I hadn't realized this was an issue

) so all I did was waste electricity for 8 hours.

Undeterred, I stripped the variations out and ran it again. This produced two interesting issues rather than one. However, both relate to counting so we will "count" it a win-win.

Attached is the analysis printout from CS. In the sgf file the first time that you specifically comment on White being ahead is at move 158, "After this, I felt I'd be OK if I simply saved the group. However, after counting, it seemed that white was already ahead

He shrunk my corner a lot, and I didn't have any major points except for the capture. After the top right corner, things certainly turned around."

When we look at the CS analysis, however, CS has the crazy idea that Black is winning by 10 points. Hmmm... Exactly why you differ so much would be hard to analyze but be aware that you seem to be way too pessimistic these days.

Click Here To Show Diagram Code: [go]$$Bcm158 $$ --------------------------------------- $$ | . X . . . . . . . . . . X . . X O . . | $$ | . . . X O O . . . . . X X . X . X O . | $$ | X X X X O X . . . . X . O X . X X O . | $$ | O O O O X O . O . , . . O X X X . O . | $$ | O X X X X O . . . . . . O O . . O . . | $$ | O X . . . X . O . . . X X X O O O X O | $$ | O O X X . . . . . . . . . . X O X O . | $$ | O . O . . 1 . . . . . . . X X X X O . | $$ | . O . . O . . . . . . . . . O . X X . | $$ | . . . , . . . . . , . . . . . , . . . | $$ | . . . . . . . . . . . . . O O O . . . | $$ | . . . O . . . . X . O O X O X O . . . | $$ | . . . O . O . O X X X O O X X O . . . | $$ | . . O X X . . O X X . X X X . . . . . | $$ | . . O X . . X O . X . . X O O O X . . | $$ | . . X X . . . O . X . . . X . , O . . | $$ | . . . . X O . O X X X . X X . O . . . | $$ | . . . X O . . . X . . . X . . . . . . | $$ | . . . . . . . . . X X X . . . . . . . | $$ ---------------------------------------[/go]

The second situation and the second comment is easier to analyze. At 179 you wrote, "I connected, but am still way behind. After he connected K12, his group doesn't have many weaknesses. After counting, I estimate black is around 10 points behind."

Nevertheless, CS persists in this idea that Black is 12 points ahead. But notice this is down from a 25 (!) point lead before your previous move. CS was extremely critical of White 177 and was like a little boy bouncing up and down in his seat wanting Black to play 178 at E10. What happens if Black does so and White then cuts at J10?

Click Here To Show Diagram Code: [go]$$Wcm177 $$ --------------------------------------- $$ | . X . . . . . . . . . . X . . X O . . | $$ | . . . X O O O . . . . X X . X . X O . | $$ | X X X X O X X . . . X . O X . X X O . | $$ | O O O O X O . O . , . . O X X X . O . | $$ | O X X X X O . O . . . . O O . . O . . | $$ | O X . . . X X O . . . X X X O O O X O | $$ | O O X X . X O . . . . . . . X O X O . | $$ | O . O . O X O . O O . . . X X X X O . | $$ | . O . . O X X X X O . . . . O . X X . | $$ | . . . . 2 . . . 3 . . . . . . , . . . | $$ | . . . . . X 1 O X . . . . O O O . . . | $$ | . . . O . . . . X . O O X O X O . . . | $$ | . . . O a O . O X X X O O X X O . . . | $$ | . . O X X . . O X X . X X X . . . . . | $$ | . . O X . . X O . X . . X O O O X . . | $$ | . . X X . . . O . X . . . X . , O . . | $$ | . . . . X O . O X X X . X X . O . . . | $$ | . . . X O . . . X . . . X . . . . . . | $$ | . . . . . . . . . X X X . . . . . . . | $$ ---------------------------------------[/go]

Black jumps down to C10 and a big 'Whoops!' goes out from all the kibitzers. Black threatens to capture the entire upper left with B10 next so White has to take that point. If Black simply plays 3, White seems to be too busy. If 4 to save the two stones, Black plays 5 in sente and cuts with 7. If White continues along the left side instead, Black can just pick up the two stones and be safe. Meanwhile, Black is still threatening to cut at 7 and 'a'.

Click Here To Show Diagram Code: [go]$$Bc $$ --------------------------------------- $$ | . X . . . . . . . . . . X . . X O . . | $$ | . . . X O O O . . . . X X . X . X O . | $$ | X X X X O X X . . . X . O X . X X O . | $$ | O O O O X O . O . , . . O X X X . O . | $$ | O X X X X O . O . . . . O O a . O . . | $$ | O X . . . X X O . . . X X X O O O X O | $$ | O O X X . X O . . . . . . . X O X O . | $$ | O . O . O X O . O O . . . X X X X O . | $$ | . O 4 . O X X X X O . . . . O . X X . | $$ | 6 2 1 . X . . . O , . . . . . , . . . | $$ | . 5 3 . . X O O X . . . . O O O . . . | $$ | . . . O . . . . X . O O X O X O . . . | $$ | . . . O 7 O . O X X X O O X X O . . . | $$ | . . O X X . . O X X . X X X . . . . . | $$ | . . O X . . X O . X . . X O O O X . . | $$ | . . X X . . . O . X . . . X . , O . . | $$ | . . . . X O . O X X X . X X . O . . . | $$ | . . . X O . . . X . . . X . . . . . . | $$ | . . . . . . . . . X X X . . . . . . . | $$ ---------------------------------------[/go]

Meanwhile, the other "counting" issue comes at the end of the game.

Kirby wrote:Some learning points...

Position 4
$$ Position at move 199
$$ ---------------------------------------
$$ | . X . . . . . . . . . . X . . X O . . |
$$ | . . . X O O O B X . . X X . X . X O . |
$$ | X X X X O X X O . . X . O X . X X O . |
$$ | O O O O X O . O . X X O O X X X . O . |
$$ | O X X X X O . O O O O X O O O . O . . |
$$ | O X . . . X X O O X X X X X O O O X O |
$$ | O O X X . X O O X X . . . . X O X O . |
$$ | O . O . O X O X O O . . O X X X X O . |
$$ | . O . . O X X X X O O . O . O . X X . |
$$ | . . . , . . . . . X . X . . . , . . . |
$$ | . . . . . X O O X . . . . O O O . . . |
$$ | . . . O . . . . X . O O X O X O . . . |
$$ | . . . O . O . O X X X O O X X O . . . |
$$ | . . O X X . . O X X . X X X . . . . . |
$$ | . . O X . . X O . X . . X O O O X . . |
$$ | . . X X . . . O . X . . . X . , O . . |
$$ | . . . . X O . O X X X . X X . O . . . |
$$ | . . . X O . . . X . . . X . . . . . . |
$$ | . . . . . . . . . X X X . . . . . . . |
$$ ---------------------------------------
Click Here To Show Diagram Code
[go]$$ Position at move 199 $$ --------------------------------------- $$ | . X . . . . . . . . . . X . . X O . . | $$ | . . . X O O O B X . . X X . X . X O . | $$ | X X X X O X X O . . X . O X . X X O . | $$ | O O O O X O . O . X X O O X X X . O . | $$ | O X X X X O . O O O O X O O O . O . . | $$ | O X . . . X X O O X X X X X O O O X O | $$ | O O X X . X O O X X . . . . X O X O . | $$ | O . O . O X O X O O . . O X X X X O . | $$ | . O . . O X X X X O O . O . O . X X . | $$ | . . . , . . . . . X . X . . . , . . . | $$ | . . . . . X O O X . . . . O O O . . . | $$ | . . . O . . . . X . O O X O X O . . . | $$ | . . . O . O . O X X X O O X X O . . . | $$ | . . O X X . . O X X . X X X . . . . . | $$ | . . O X . . X O . X . . X O O O X . . | $$ | . . X X . . . O . X . . . X . , O . . | $$ | . . . . X O . O X X X . X X . O . . . | $$ | . . . X O . . . X . . . X . . . . . . | $$ | . . . . . . . . . X X X . . . . . . . | $$ ---------------------------------------[/go]
In the game, I played above. I didn't have enough liberties...

This is quite an interesting situation to study. White played 1-3 below and the question arises how many liberties does each side have?

Click Here To Show Diagram Code: [go]$$Wc $$ --------------------------------------- $$ | . X . . . . . . . . . . X . . X O . . | $$ | . . . X O O O B X . . X X . X . X O . | $$ | X X X X O X X O . . X . O X . X X O . | $$ | O O O O X O . O . X X O O X X X . O . | $$ | O X X X X O . O O O O X O O O . O . . | $$ | O X . . . X X O O X X X X X O O O X O | $$ | O O X X . X O O X X . . 2 1 X O X O . | $$ | O . O . O X O X O O . . O X X X X O . | $$ | . O . . O X X X X O O . O . O . X X . | $$ | . . . , . . . . . X . X . . . , . 3 . | $$ | . . . . . X O O X . . . . O O O . . . | $$ | . . . O . . . . X . O O X O X O . . . | $$ | . . . O . O . O X X X O O X X O . . . | $$ | . . O X X . . O X X . X X X . . . . . | $$ | . . O X . . X O . X . . X O O O X . . | $$ | . . X X . . . O . X . . . X . , O . . | $$ | . . . . X O . O X X X . X X . O . . . | $$ | . . . X O . . . X . . . X . . . . . . | $$ | . . . . . . . . . X X X . . . . . . . | $$ ---------------------------------------[/go]

For Black to capture the White stones, Black plays eight times (twice inside the eye) and White replies twice (once inside the eye). White has six liberties.

Click Here To Show Diagram Code: [go]$$Bc Black plays twice inside the eye and White plays once. $$ --------------------------------------- $$ | . X . . B B B . . . . . X . . X O . . | $$ | . . . X O O O X X . . X X . X . X O . | $$ | X X X X O X X O B . X . O X . X X O . | $$ | O O O O X O W O B X X O O X X X . O . | $$ | O X X X X O B O O O O X O O O . O . . | $$ | O X . . . X X O O X X X X X O O O X O | $$ | O O X X . X O O X X . . X . X O X O . | $$ | O . O . O X O X O O . . O X X X X O . | $$ | . O . . O X X X X O O . O . O . X X . | $$ | . . . , . . . . . X . X . . . , . O . | $$ | . . . . . X O O X . . . . O O O . . . | $$ | . . . O . . . . X . O O X O X O . . . | $$ | . . . O . O . O X X X O O X X O . . . | $$ | . . O X X . . O X X . X X X . . . . . | $$ | . . O X . . X O . X . . X O O O X . . | $$ | . . X X . . . O . X . . . X . , O . . | $$ | . . . . X O . O X X X . X X . O . . . | $$ | . . . X O . . . X . . . X . . . . . . | $$ | . . . . . . . . . X X X . . . . . . . | $$ ---------------------------------------[/go]

For White to capture Black, White plays six times and Black replies once. Basically Black has five liberties. It is Black to play but we might count that Black loses. There are complications however. Note the Black stone marked with a square. This is in just the right place to permit Black to win.

Click Here To Show Diagram Code: [go]$$Wc $$ --------------------------------------- $$ | . X . . . . . . . . . . X . . X O . . | $$ | . . . X O O O X X . . X X . X . X O . | $$ | X X X X O X X O . . X . O X . X X O . | $$ | O O O O X O . O . X X O O X X X . O . | $$ | O X X X X O . O O O O X O O O . O . . | $$ | O X . . . X X O O X X X X X O O O X O | $$ | O O X X . X O O X X W W X B X O X O . | $$ | O . O . O X O X O O . . O X X X X O . | $$ | . O . . O X X X X O O . O W O W X X W | $$ | . . . , . . . . . X . # . . . , W O . | $$ | . . . . . X O O X . . . . O O O . . . | $$ | . . . O . . . . X . O O X O X O . . . | $$ | . . . O . O . O X X X O O X X O . . . | $$ | . . O X X . . O X X . X X X . . . . . | $$ | . . O X . . X O . X . . X O O O X . . | $$ | . . X X . . . O . X . . . X . , O . . | $$ | . . . . X O . O X X X . X X . O . . . | $$ | . . . X O . . . X . . . X . . . . . . | $$ | . . . . . . . . . X X X . . . . . . . | $$ ---------------------------------------[/go]

Black 1 threatens to capture 4 stones so White answers with 2. Now however, White has to play 3 stones instead of 2 around L12. Naturally if White tried to avoid this by completely filling the liberties from the other direction first, Black would not connect at O13. Black is winning and can capture White six liberties to six!

Click Here To Show Diagram Code: [go]$$Bc One extra liberty $$ --------------------------------------- $$ | . X . . . . . . . . . . X . . X O . . | $$ | . . . X O O O X X . . X X . X . X O . | $$ | X X X X O X X O . . X . O X . X X O . | $$ | O O O O X O . O . X X O O X X X . O . | $$ | O X X X X O . O O O O X O O O . O . . | $$ | O X . . . X X O O X X X X X O O O X O | $$ | O O X X . X O O X X W W X B X O X O . | $$ | O . O . O X O X O O W 1 O X X X X O . | $$ | . O . . O X X X X O O 2 O W O W X X W | $$ | . . . , . . . . . X . # . . . , W O . | $$ | . . . . . X O O X . . . . O O O . . . | $$ | . . . O . . . . X . O O X O X O . . . | $$ | . . . O . O . O X X X O O X X O . . . | $$ | . . O X X . . O X X . X X X . . . . . | $$ | . . O X . . X O . X . . X O O O X . . | $$ | . . X X . . . O . X . . . X . , O . . | $$ | . . . . X O . O X X X . X X . O . . . | $$ | . . . X O . . . X . . . X . . . . . . | $$ | . . . . . . . . . X X X . . . . . . . | $$ ---------------------------------------[/go]

But Black can do better. White always starts the capturing race by filling the liberty at R10. Black should play there first (which actually happened in the game), forcing White to answer at S9 and gaining one liberty - Black now already has six!. Next Black should atari at T12, preventing White from easily connecting underneath. White has to answer or Black captures two stones and kills the upper right corner. Now Black might play E10 ('a' below)! The magic of M12 works even if we wait for White to play first (e.g. 6-8)!

One final complication is that White can start a ko with 'b' through 'd' below if Black plays 'a'. As a result, Black is probably happy to simply hane at 5, as in the game, and win "quietly".

Click Here To Show Diagram Code: [go]$$Bc Two extra liberties = tenuki $$ --------------------------------------- $$ | . X c b 5 d . . . . . . X . . X O . . | $$ | . . . X O O O X X . . X X . X . X O . | $$ | X X X X O X X O 9 . X . O X . X X O . | $$ | O O O O X O . O . X X O O X X X . O . | $$ | O X X X X O . O O O O X O O O . O 4 . | $$ | O X . . . X X O O X X X X X O O O X O | $$ | O O X X . X O O X X . 6 X . X O X O . | $$ | O . O . O X O X O O . 7 O X X X X O 3 | $$ | . O . . O X X X X O O 8 O . O . X X . | $$ | . . . , a . . . . X . # . . . , 1 O . | $$ | . . . . . X O O X . . . . O O O . 2 . | $$ | . . . O . . . . X . O O X O X O . . . | $$ | . . . O . O . O X X X O O X X O . . . | $$ | . . O X X . . O X X . X X X . . . . . | $$ | . . O X . . X O . X . . X O O O X . . | $$ | . . X X . . . O . X . . . X . , O . . | $$ | . . . . X O . O X X X . X X . O . . . | $$ | . . . X O . . . X . . . X . . . . . . | $$ | . . . . . . . . . X X X . . . . . . . | $$ ---------------------------------------[/go]

Edit: add 9 in last diagram.

Posted: **Fri Dec 26, 2014 12:18 pm**

@ez4u: I have relatives over at the moment for the holiday season, so I don't have the resources at the moment to respond in depth. I will do so once they've left.

But I simply have to take the time to say that I am impressed with your efforts to assist in both the counting analysis, and your review in general - for a game that you didn't even play! Very impressive!

Posted: **Fri Dec 26, 2014 3:16 pm**

Kirby wrote:@ez4u: I have relatives over at the moment for the holiday season, so I don't have the resources at the moment to respond in depth. I will do so once they've left.

But I simply have to take the time to say that I am impressed with your efforts to assist in both the counting analysis, and your review in general - for a game that you didn't even play! Very impressive!

Once I get going on an interesting position I can't stop. It's because I can never do this kind of analysis on my own lost games - embarrassment, shame, or whatever. So I never learn from my own mistakes! As the Beatles used to say, I need a little help from my friends. Happy Holidays to you and your family.

Posted: **Mon Dec 29, 2014 1:45 pm**

ez4u wrote: It's because I can never do this kind of analysis on my own lost games - embarrassment, shame, or whatever.

Ah, so that's it. I have no shame, so that problem never occurred to me!

Regarding your comments...

I'm still surprised that CS thinks that black is ahead in the position below. My counting is roughly as follows:

Click Here To Show Diagram Code: [go]$$Bcm158 $$ --------------------------------------- $$ | C X . . . C C . . . . . X C C X O . . | $$ | C C C X O O C . . . . X X C X C X O . | $$ | X X X X O C C . . . X . O X C X X O C | $$ | O O O O X O C O . , . . O X X X . O C | $$ | O X X X X O . . . . . . O O . . O C C | $$ | O X C C C X . O . . . X X X O O O C O | $$ | O O X X . . . . . . . . . C X O X O . | $$ | O C O . . X . . . . . . . X X X X O . | $$ | C O C C O . . . . . . . . . O . X X . | $$ | C C C C . . . . . , . . . . . , . . . | $$ | C C C C . . . . . . . . . O O O . . . | $$ | C C C O . . . . X . O O X O X O . . . | $$ | C C C O . O . O X X X O O X X O C C C | $$ | . . O X X . . O X X C X X X . . C C C | $$ | . . O X . . X O . X C C X O O O C C C | $$ | . . X X . . . O . X C C C X . , O C C | $$ | . . C C X O . O X X X C X X . O C C C | $$ | . C C X O . . . X C C C X . . . . C C | $$ | . C C . . . . . . X X X . . . . . . . | $$ ---------------------------------------[/go]

Black - about 39, counting twice for the large capture area.
White - about 49.

Maybe I am a little generous to white on the right, but I'm surprised CS thinks black is ahead.

Regarding this sequence:

Click Here To Show Diagram Code: [go]$$Bc $$ --------------------------------------- $$ | . X . . . . . . . . . . X . . X O . . | $$ | . . . X O O O . . . . X X . X . X O . | $$ | X X X X O X X . . . X . O X . X X O . | $$ | O O O O X O . O . , . . O X X X . O . | $$ | O X X X X O . O . . . . O O a . O . . | $$ | O X . . . X X O . . . X X X O O O X O | $$ | O O X X . X O . . . . . . . X O X O . | $$ | O . O . O X O . O O . . . X X X X O . | $$ | . O 4 . O X X X X O . . . . O . X X . | $$ | 6 2 1 . X . . . O , . . . . . , . . . | $$ | . 5 3 . . X O O X . . . . O O O . . . | $$ | . . . O . . . . X . O O X O X O . . . | $$ | . . . O 7 O . O X X X O O X X O . . . | $$ | . . O X X . . O X X . X X X . . . . . | $$ | . . O X . . X O . X . . X O O O X . . | $$ | . . X X . . . O . X . . . X . , O . . | $$ | . . . . X O . O X X X . X X . O . . . | $$ | . . . X O . . . X . . . X . . . . . . | $$ | . . . . . . . . . X X X . . . . . . . | $$ ---------------------------------------[/go]

That's awesome. The possibility never occurred to me.

Finally, regarding your liberty race analysis, I'm starting to think that it'd be beneficial for me to learn how to count liberties well. Usually, I just read out, "white-black-white-black", etc., to determine the result. When there are several liberties like this, especially if there's time pressure, I guess I can't calculate precisely.

I have a book, written in English, actually, about counting liberties. Maybe it's time to finally read it thoroughly.

Posted: **Mon Dec 29, 2014 1:59 pm**

I broke my losing streak today. It doesn't exactly feel like a win, but I'll take it.

Here is my review.

Posted: **Mon Dec 29, 2014 2:07 pm**

Learning points.

Position 1

Click Here To Show Diagram Code: [go]$$ Position at move 44 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . X . . . . . . . X . . O . . | $$ | . . . O . . . . . , . . . . . X . O . | $$ | . . . . . . . . . . . . . . . . X O . | $$ | . . O . . . . . . . . . . . . X O O . | $$ | . . . . . . . . . . . . . . X O X . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . X . . . | $$ | . . O . . . . . . . . . . . O X . . . | $$ | . . . . . . . . . X . O . . . . . . . | $$ | . . . O . . B . . , . . O O O , X . . | $$ | . . . . . X . O . X . X O X . O O X . | $$ | . . . O . . . . . . X X X O . . . X . | $$ | . . . . . . . . . . . . O . . . . . . | $$ ---------------------------------------[/go]

I played the marked move, above. In some ways, it helps my weak-ish group. On the other hand, it's hard to see a good attack for white on the stones, and maybe the top is bigger.

Maybe this?

Click Here To Show Diagram Code: [go]$$ Position at move 44 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . X . . . . . . . X . . O . . | $$ | . . . O . . . . B , . . . . . X . O . | $$ | . . . . . . . . . . . . . . . . X O . | $$ | . . O . . . . . . . . . . . . X O O . | $$ | . . . . . . . . . . . . . . X O X . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . X . . . | $$ | . . O . . . . . . . . . . . O X . . . | $$ | . . . . . . . . . X . O . . . . . . . | $$ | . . . O . . . . . , . . O O O , X . . | $$ | . . . . . X . O . X . X O X . O O X . | $$ | . . . O . . . . . . X X X O . . . X . | $$ | . . . . . . . . . . . . O . . . . . . | $$ ---------------------------------------[/go]

Position 2

Click Here To Show Diagram Code: [go]$$ Position at move 70 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X X O a . . . . . . . . . . . . . | $$ | . . X O O X . O . . . . . X . . O . . | $$ | . . X O . . . . . , . . . . . X . O . | $$ | . X X O . . . . . . . . . . . . X O . | $$ | . O O b . . . . . . . . . . . X O O . | $$ | . . . . . . . . . . . . . . X O X . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . X . . . | $$ | . . . W . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . X . . . | $$ | . . O . . . . O . . . . . . O X . . . | $$ | . . . . . . X O . X . O . . . . . . . | $$ | . . . O . . X O . , . . O O O , X . . | $$ | . . . . X X X O . X . X O X . O O X . | $$ | . . . O O O X O X . X X X O . . . X . | $$ | . . . . . . . X . . . . O . . . . . . | $$ ---------------------------------------[/go]

After white played the marked stone, I went for the funny business at 'a', aiming at the cut at 'b'. This helped white to solidify a lot of points, without a clear way for me to attack his group.

Maybe a better strategy is to aim at the weak-ish white group on the bottom. For example:

Click Here To Show Diagram Code: [go]$$ Position at move 70 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X X O . . . . . . . . . . . . . . | $$ | . . X O O X . O . . . . . X . . O . . | $$ | . . X O . . . . . , . . . . . X . O . | $$ | . X X O . . . . . . . . . . . . X O . | $$ | . O O . . . . . . . . . . . . X O O . | $$ | . . . . . . . . . . . . . . X O X . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . 2 . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . X . . . | $$ | . . . O . 1 . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . 3 . . . . . X . . . | $$ | . . O . . . . W . . . . . . O X . . . | $$ | . . . . . . X W . X . O . . . . . . . | $$ | . . . O . . X W . , . . O O O , X . . | $$ | . . . . X X X W . X . X O X . O O X . | $$ | . . . O O O X W X . X X X O . . . X . | $$ | . . . . . . . X . . . . O . . . . . . | $$ ---------------------------------------[/go]

On one hand, the marked group, above, looks weaker... On the other hand, it's hard for me to see what profit I'm getting from attacking...

Maybe attack first, then invade the left?

Click Here To Show Diagram Code: [go]$$ Position at move 70 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X X O . . . . . . . . . . . . . . | $$ | . . X O O X . O . . . . . X . . O . . | $$ | . . X O . . . . . , . . . . . X . O . | $$ | . X X O . . . . . . . . . . . . X O . | $$ | . O O . . . . . . . . . . . . X O O . | $$ | . . . . . . . . . . . . . . X O X . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . X . . . | $$ | . . . O . . . . . . . . . . . . . . . | $$ | . . . . . . B . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . X . . . | $$ | . . O . . . . O . . . . . . O X . . . | $$ | . . . . . . X O . X . O . . . . . . . | $$ | . . . O . . X O . , . . O O O , X . . | $$ | . . . . X X X O . X . X O X . O O X . | $$ | . . . O O O X O X . X X X O . . . X . | $$ | . . . . . . . X . . . . O . . . . . . | $$ ---------------------------------------[/go]

Maybe if i can get stones in the area, I can invade the left easier?

Click Here To Show Diagram Code: [go]$$ Position at move 70 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X X O . . . . . . . . . . . . . . | $$ | . . X O O X . O . . . . . X . . O . . | $$ | . . X O . . . . . , . . . . . X . O . | $$ | . X X O . . . . . . . . . . . . X O . | $$ | . O O . . . . . . . . . . . . X O O . | $$ | . . . . . . . . . . . . . . X O X . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . 7 . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . X . . . | $$ | . . . O . . 5 3 . . . . . . . . . . . | $$ | . . . . . . 1 2 4 . . . . . . . . . . | $$ | . . . . . . . . . . 6 . . . . X . . . | $$ | . . O . . . . O . . . . . . O X . . . | $$ | . . . . . . X O . B . O . . . . . . . | $$ | . . . O . . X O . , . . O O O , X . . | $$ | . . . . X X X O . B . B O X . O O X . | $$ | . . . O O O X O B . B B B O . . . X . | $$ | . . . . . . . X . . . . O . . . . . . | $$ ---------------------------------------[/go]

On the other hand, the marked black stones could get weaker. Plus, it seems like the invasion is still overplay on this board.

To be honest, I don't know what to do, exactly in this position.

Maybe invading the 3-3 was preemptive.

Position 3

Click Here To Show Diagram Code: [go]$$ Position at move 105 $$ --------------------------------------- $$ | . . . . X . . . . . . . . . . . . . . | $$ | . . X X O X . . . . . . . . . . . . . | $$ | . . X O O X . O . . . O . X . . O . . | $$ | . . X O O O O . O , O . . . . X . O . | $$ | . X X O . X . O X X . . . . . . X O . | $$ | . O O X X X . X . . . B . . . X O O . | $$ | . . . O X . X . . . . . . . X O X . . | $$ | . . . O O X . . . . . . . . . . X . . | $$ | . . . X O O . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . X . . . | $$ | . . . O . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . X . . . | $$ | . . O . . . . O . . . . . . O X . . . | $$ | . . . . . . X O . X . O . . . . . . . | $$ | . . . O . . X O . , . . O O O , X . . | $$ | . O O X X X X O . X . X O X . O O X . | $$ | . O . O O O X O X . X X X O . . . X . | $$ | . X O X . . . X . . . . O . . . . . . | $$ ---------------------------------------[/go]

The marked move was too risky, but I don't know if I had another choice.

Learning points
1. Play bigger area in the opening when you have the chance. I think it was bad that white played first to pincer my stone on the top, as in the first position. He gained more profit, and really pulled ahead, I feel.
2. ? Something else feels wrong, but I can't pinpoint it.

Posted: **Tue Dec 30, 2014 2:46 pm**

I played a handicap game against KGS 2k today. I won, but it was pretty sloppy. I should be more careful. My friend, Josh, also helped a bit in reviewing after the game.

Here is the game.

Posted: **Tue Dec 30, 2014 3:17 pm**

Learning points.

Position 1

Click Here To Show Diagram Code: [go]$$ Position at move 18 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . O X X . . . . | $$ | . . . . . . . . . . . . O O X . O . . | $$ | . . . , . . . . . , . . O X X X X . . | $$ | . . . . . . . . . . . X X O . . . . . | $$ | . . . . . . . . . . . W O . O . O . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . X . . . . . , . . . . . , . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Obviously, the marked move is an overplay. I need to help the 4 stones on top.

Position 2

Click Here To Show Diagram Code: [go]$$ Position at move 22 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . O X X . . . . | $$ | . . . . . . . . . O . . O O X . O . . | $$ | . . . , . . . . . , . . O X X X X . . | $$ | . . . . . . . . . . X X X O . . . . . | $$ | . . . . . . . . . . X O O . O . O . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . W . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . X . . . . . , . . . . . , . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

This is also an overplay. For example:

Click Here To Show Diagram Code: [go]$$ Position at move 22 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . O X X . . . . | $$ | . . . . . . . . . O . . O O X . O . . | $$ | . . . , . . . . . , . . O X X X X . . | $$ | . . . . . . . . . . X X X O . . . . . | $$ | . . . . . . . . . . X O O 4 O 2 O . . | $$ | . . . . . . . . . . . . . 3 . 1 . . . | $$ | . . . . . . . . . . . 5 . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . W . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . X . . . . . , . . . . . , . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Instead, I should help the stones.

Click Here To Show Diagram Code: [go]$$ Position at move 22 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . O X X . . . . | $$ | . . . . . . . . . O . . O O X . O . . | $$ | . . . , . . . . . , . . O X X X X . . | $$ | . . . . . . . . . . X X X O . . . . . | $$ | . . . . . . . . . . X O O . O . O . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . W . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . X . . . . . , . . . . . , . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Position 3

Click Here To Show Diagram Code: [go]$$ Position at move 34 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . O X X . . . . | $$ | . . . . X . X . . O . . O O X . O . . | $$ | . . . , . . O O . , . . O X X X X . . | $$ | . . . . . . . . . . X X X O . . . . . | $$ | . . . . . . . X . . X O O . O . O . . | $$ | . . . . . . . . . . X . . . . . . . . | $$ | . . . . . . . . . . O O . . . . . . . | $$ | . . . . . . . . . . . . . O . . . . . | $$ | . . . , . . . . . , W . X X . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . X . . . . . , . . . . . , . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

The marked move is kind of random. I should help the white group - otherwise, black gets huge corner, while pressuring white, as in the game:

Click Here To Show Diagram Code: [go]$$ Position at move 34 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . O X X . . . . | $$ | . . . . X . X . . O . . O O X . O . . | $$ | . . . , . 1 O O . , . . O X X X X . . | $$ | . . . . . . . . . . X X X O . . . . . | $$ | . . . . . . . X . . X O O . O . O . . | $$ | . . . . . . . . . . X . . . . . . . . | $$ | . . . . . . . . . . O O . . . . . . . | $$ | . . . . . . . . . . . . . O . . . . . | $$ | . . . , . . . . . , O . X X . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . X . . . . . , . . . . . , . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Instead, maybe just play in the same area myself:

Click Here To Show Diagram Code: [go]$$ Position at move 34 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . 1 . . . . . . O X X . . . . | $$ | . . . . X W X . . O . . O O X . O . . | $$ | . . . , . 2 O O . , . . O X X X X . . | $$ | . . . . . . . . . . X X X O . . . . . | $$ | . . . . . . . X . . X O O . O . O . . | $$ | . . . . . . . . . . X . . . . . . . . | $$ | . . . . . . . . . . O O . . . . . . . | $$ | . . . . . . . . . . . . . O . . . . . | $$ | . . . , . . . . . , . . X X . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . X . . . . . , . . . . . , . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Position 4

Click Here To Show Diagram Code: [go]$$ Position at move 42 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . O X X . . . . | $$ | . . . . X . X X . O . . O O X . O . . | $$ | . . . , . X O O O , . . O X X X X . . | $$ | . . . . . . . . . . X X X O . . . . . | $$ | . . . . . . O X . . X O O . O . O . . | $$ | . . . . . . X W . . X . . . . . . . . | $$ | . . . . . . . . . . O O . . . . . . . | $$ | . . . . . . . . . . . . . O . . . . . | $$ | . . . , . . . . . , O . X X . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . X . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . X . . . . . , . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Again, an overplay. As black can even sacrifice and get a big corner, it's best for me to just split black and reduce the area.

Click Here To Show Diagram Code: [go]$$ Position at move 42 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . O X X . . . . | $$ | . . . . X . X X . O . . O O X . O . . | $$ | . . . , . X O O O , . . O X X X X . . | $$ | . . . . . W . . . . X X X O . . . . . | $$ | . . . . . . O X . . X O O . O . O . . | $$ | . . . . . . X . . . X . . . . . . . . | $$ | . . . . . . . . . . O O . . . . . . . | $$ | . . . . . . . . . . . . . O . . . . . | $$ | . . . , . . . . . , O . X X . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . X . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . X . . . . . , . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Position 5

Click Here To Show Diagram Code: [go]$$ Position at move 82 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . O X X . . . . | $$ | . . . . X . X X . O . . O O X . O . . | $$ | . . . , . X O O O , . . O X X X X . . | $$ | . . . . . X X O . . X X X O . . . . . | $$ | . . . . O O O X X . X O O . O . O . . | $$ | . . . . . . X O X X X . . . . . . . . | $$ | . . . . . . X O O X O O . . . . . . . | $$ | . . . . . . . . O X . . O O X . . . . | $$ | . . . , . . X O O X O O X X . X . . . | $$ | . . . . . . X O X O O . . . . . . . . | $$ | . . . . . . . O X X O . O X . . . . . | $$ | . . . . . . . . . X X O X . . O . . . | $$ | . . . . . . . . O . X O . . . . . . . | $$ | . . . . . . . . . . X . . . . . . . . | $$ | . . . X . . . . W , . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Again... Overplay. Black can disconnect white.

Click Here To Show Diagram Code: [go]$$ Position at move 82 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . O X X . . . . | $$ | . . . . X . X X . O . . O O X . O . . | $$ | . . . , . X O O O , . . O X X X X . . | $$ | . . . . . X X O . . X X X O . . . . . | $$ | . . . . O O O X X . X O O . O . O . . | $$ | . . . . . . X O X X X . . . . . . . . | $$ | . . . . . . X O O X O O . . . . . . . | $$ | . . . . . . . . O X . . O O X . . . . | $$ | . . . , . . X O O X O O X X . X . . . | $$ | . . . . . . X O X O O . . . . . . . . | $$ | . . . . . 6 4 O X X O . O X . . . . . | $$ | . . . . . . 5 3 . X X O X . . O . . . | $$ | . . . . . . . . O . X O . . . . . . . | $$ | . . . . . . . 1 2 . X . . . . . . . . | $$ | . . . X . . . . W , . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

There were several other issues, but these ones stick out as big overplays by me.

I think the key learning point from this game is:
1. Do not overplay.

Maybe it was because I was playing handicap game, but I didn't have any defense - only offense. I left myself exposed and vulnerable. Against a stronger opponent, these vulnerabilities would have surely been noticed, and I would have been crushed.

Be careful, Kirby...

Life In 19x19

Kirby's Study Journal

Re: Kirby's Study Journal

Re: Kirby's Study Journal

Re: Kirby's Study Journal

Re: Kirby's Study Journal

Re: Kirby's Study Journal

Re: Kirby's Study Journal

Re: Kirby's Study Journal

Re: Kirby's Study Journal

Re: Kirby's Study Journal

Re: Kirby's Study Journal

Re: Kirby's Study Journal

Re: Kirby's Study Journal

Re: Kirby's Study Journal

Re: Kirby's Study Journal

Re: Kirby's Study Journal