Page 4 of 6

Re: dutchie's journal

Posted: Tue May 08, 2018 4:46 pm
by dutchie
Sunday was the Bar Low tournament in London! It didn't go quite as well as I'd hoped; I decided that I'd be pretty happy if I could win half my games, but I ended up with a final record of 0-5. I didn't keep records of the games, but overall I think I struggled most with the time control. 25 minutes then 25 stones in 5, increasing to 30, 35 and so on felt really brisk, and I often ended up using way too much time thinking in the opening and early midgame, leaving not much thinking for late game.

Games 1 & 2 I was never really ahead, and in the end both of those opponents went on to win all their games. I'm more upset with the latter 3, all of which I went into the endgame if not ahead with a decent winning chance. Game 3, while I was feeling nicely ahead going into endgame, my opponent played a very deep invasion right as my main time ran out and it all fell to pieces in the ensuing complications. Game 4 was a 2 point loss, which really could have gone either way. Game 3 was again annoying, this time I was playing way too fast in the overtimes. Worst moment was after restarting the clocks from counting out overtime stones, I connected a 2 point atari when there were way bigger moves left. Ended up losing by 10.

Still, it was a fun day out, and nice to chat to some other people playing go!

I played a couple more games on KGS tonight and didn't manage to break the losing streak, so I'm feeling a little discouraged at the moment. Hopefully a little sleep will fix that and I can post some sensible analysis soon.

Re: dutchie's journal

Posted: Thu Jun 07, 2018 1:47 pm
by dutchie
So after that post, I went on a truly ridiculous losing streak, which must have been well over a dozen losses in a row by the end (counting the tournament). I don't remember how a lot of the games went now, and maybe I'll review them some other time, but I finally broke it on Tuesday and got another win just now! I'll post up both of the games, with a post game review on today's since my opponent stuck around. Any thoughts welcome as always!



Re: dutchie's journal

Posted: Tue Jun 12, 2018 3:40 pm
by dutchie
Another couple of games tonight. The second had aspects of a thing I've noticed happening somewhat often in my games where I just suddenly end up in the midgame with a bunch of influence and no territory and I do a terrible job of converting it all into points. Any tips and a review greatly appreciated!


Re: dutchie's journal

Posted: Tue Jun 12, 2018 4:11 pm
by dfan
The first move that looks funny to me is :w23:. You need to make a base (and this move doesn't really do anything to Black's group on the left, which is totally alive). Extend to H3; it threatens Black's group as well.

:w29: and :w31: also don't feel right; you're forcing Black to connect two groups and make territory. The C14/D14 stones were potentially weak; now they're fine. You kind of owe a move at F16 or F17 to finish that pattern off; another big point is O17.

:w33:: One usually plays this at J4 and then jumps back to G4, but I don't like this much anyway, since Black is not weak so there's nothing much to attack. If you're going to play in this area I prefer the shoulder hit at L4. Of course your wall is not doing much but I wasn't a fan of its creation in the first place. :)

Posted: Tue Jun 12, 2018 4:12 pm
by EdLee
Hi dutchie,

Re: dutchie's journal

Posted: Tue Jun 12, 2018 6:43 pm
by Bill Spight
A few comments. :)



Main focus: White should make life difficult for Black.

Re: dutchie's journal

Posted: Tue Jun 12, 2018 11:02 pm
by Joaz Banbeck
My reflex would be to play B3 at move 19. But I notice that no reviewer suggests it. Any opinions?

Re: dutchie's journal

Posted: Wed Jun 13, 2018 1:41 am
by Bill Spight
Joaz Banbeck wrote:My reflex would be to play B3 at move 19. But I notice that no reviewer suggests it. Any opinions?
W B-03 - B E-04
W F-03

looks better than the usual sequence, because White threatens B-06. :)

Re: dutchie's journal

Posted: Wed Jun 13, 2018 3:17 am
by dutchie
Thanks for the reviews all. Seems like I misevaluated the E3 cut at various points and need to play a little more forcefully.

Posted: Wed Jun 13, 2018 4:01 am
by EdLee
Hi Bill,
W B-03 - B E-04
W F-03
Do you think :b2: hane is too much, or playable ?
Click Here To Show Diagram Code
[go]$$Wc
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . X . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . O . . . . . . . . . . . . O O . . |
$$ | . X . . . . . . . . . . . . . O X . . |
$$ | . . X X 3 . . . . , . . . . X , X . . |
$$ | . 1 O O 2 4 . . . X . . . . . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ -----------------------------------------[/go]
( B has the ladder. )

Re: dutchie's journal

Posted: Wed Jun 13, 2018 4:27 am
by Uberdude
Ed, 3 as clamp at 4 is maybe better, but still as black has k3 I wouldn't be sure to get a good result. So 2 looks playable to me, at least not easy to refute if it. Also black could play 2 at 4, then white doesn't have the choice of the clamp variation, only this cut one, or just submitting to crawling and taking sente (which might actually be ok).

Posted: Wed Jun 13, 2018 5:17 am
by EdLee
Uberdude, thanks.

If :b4: drop is too much...
Click Here To Show Diagram Code
[go]$$W
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . X . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . O . . . . . . . . . . . . O O . . |
$$ | . X . . . . . . . . . . . . . O X . . |
$$ | . . X X 5 . . . . , . . . . X , X . . |
$$ | . 1 O O 2 3 . . . X . . . . . X . . . |
$$ | . . . . 4 . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ -----------------------------------------[/go]
...then :b4: connect:
Click Here To Show Diagram Code
[go]$$W
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . X . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . O . . . . . . . . . . . . O O . . |
$$ | . X . . . . . . . . . . . . . O X . . |
$$ | . . X X 4 . . . . , . . . . X , X . . |
$$ | . 1 O O 2 3 . . . X . . . . . X . . . |
$$ | . . . . 5 . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ -----------------------------------------[/go]
( Trying to figure out :w1: . )

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

Re:

Posted: Wed Jun 13, 2018 8:39 am
by Joaz Banbeck
EdLee wrote:Hi Bill,
W B-03 - B E-04
W F-03
Do you think :b2: hane is too much, or playable ?
Click Here To Show Diagram Code
[go]$$Wc
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . X . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . O . . . . . . . . . . . . O O . . |
$$ | . X . . . . . . . . . . . . . O X . . |
$$ | . . X X 3 . . . . , . . . . X , X . . |
$$ | . 1 O O 2 4 . . . X . . . . . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ -----------------------------------------[/go]
( B has the ladder. )
White doesn't have to play 3 like that. Instead:
Click Here To Show Diagram Code
[go]$$Wc
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . X . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . 3 O . . . . . . . . . . . . O O . . |
$$ | . X . . . . . . . . . . . . . O X . . |
$$ | . . X X . . . . . , . . . . X , X . . |
$$ | . 1 O O 2 . . . . X . . . . . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ -----------------------------------------[/go]
Now black has to allow the connection underneath. If he fights it, the cut is horrible:
Click Here To Show Diagram Code
[go]$$Wc
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . X . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . 3 O . . . . . . . . . . . . O O . . |
$$ | . X 4 . 6 . . . . . . . . . . O X . . |
$$ | . . X X 5 7 . . . , . . . . X , X . . |
$$ | . 1 O O 2 8 9 . . X . . . . . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ -----------------------------------------[/go]
Black must play 6, or white kills by playing it himself. Then 8 is forced or 2 dies.

I'm not going to claim that B3 is a forced win, but it seems to give black some serious problems.
One amusing variation follows from the above diagram if black plays too defensively:
Click Here To Show Diagram Code
[go]$$Bc
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . X . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . O O 6 . 8 . . . . . . . . . O O . . |
$$ | . X X 7 X . . . . . . . . . . O X . . |
$$ | . . X X O O 2 . . , . . . . X , X . . |
$$ | . O O O X X O . . X . . . . . X . . . |
$$ | . . . 4 . 5 1 3 . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ -----------------------------------------[/go]

Re: Re:

Posted: Wed Jun 13, 2018 9:42 am
by Bill Spight
Joaz Banbeck wrote:
EdLee wrote:Hi Bill,
W B-03 - B E-04
W F-03
Do you think :b2: hane is too much, or playable ?
Click Here To Show Diagram Code
[go]$$Wc
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . X . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . O . . . . . . . . . . . . O O . . |
$$ | . X . . . . . . . . . . . . . O X . . |
$$ | . . X X 3 . . . . , . . . . X , X . . |
$$ | . 1 O O 2 4 . . . X . . . . . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ -----------------------------------------[/go]
( B has the ladder. )
White doesn't have to play 3 like that. Instead:
Click Here To Show Diagram Code
[go]$$Wc
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . X . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . 3 O . . . . . . . . . . . . O O . . |
$$ | . X . . . . . . . . . . . . . O X . . |
$$ | . . X X . . . . . , . . . . X , X . . |
$$ | . 1 O O 2 . . . . X . . . . . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ -----------------------------------------[/go]
Now black has to allow the connection underneath.
What's the problem? (WTP)
Click Here To Show Diagram Code
[go]$$Wc WTP
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . X . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . 3 O 8 . . . . . . . . . . . O O . . |
$$ | 7 X 6 . . . . . . . . . . . . O X . . |
$$ | . 5 X X 4 . . . . , . . . . X , X . . |
$$ | . 1 O O 2 . . . . X . . . . . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ -----------------------------------------[/go]

Posted: Wed Jun 13, 2018 12:20 pm
by EdLee
Hi dutchie,

Do you have access to Leela, etc. ?
Curious to see a nice engine's evaluations for :w19: ,
including E4 and B3.