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 Post subject: Re: Knotwilg's practice
Post #101 Posted: Thu Mar 08, 2018 1:14 am 
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Gomoto wrote:
(Just for your info: download the sgf of your latest game not working)


So it seems. But I don't know how to fix that.


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 Post subject: Re: Knotwilg's practice
Post #102 Posted: Thu Mar 08, 2018 3:07 am 
Judan

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Knotwilg wrote:
Gomoto wrote:
(Just for your info: download the sgf of your latest game not working)

So it seems. But I don't know how to fix that.

It's because you embedded the sgf content directly (which is quite large with all your comments, ~10KB), and the eidogo download link tries to put all the sgf in a http GET url and exceeds server limits (often 8 KB). If you hosted the sgf elsewhere and linked the url, or uploaded it as a file to L19, then I expect the download would work.


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 Post subject: Re: Knotwilg's practice
Post #103 Posted: Thu Apr 26, 2018 11:50 am 
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It's the end of the 2017-2018 table tennis season, which frees up at least my Wednesdays, which happens to be the club night organized by my new friend Ian Butler. His enthusiasm has been contageous so I thought I'd pick up the study rhythm again, for as long as it will last.

I'm following my own study program, which tells me to play 10 blitz games and not resign. Whatever happens, play it out till the end, aspiring to come back when behind and maintain the lead when ahead.

See https://senseis.xmp.net/?DieterVerhofst ... ingProgram

Given that such an attitude may not be welcomed by human players, I may play bots only. Here's game 1:



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 Post subject: Re: Knotwilg's practice
Post #104 Posted: Fri Apr 27, 2018 8:06 am 
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2nd blitz game of theme 1: develop fighting spirit by not resigning (at least not too soon)

Somehow I seem able to confirm a 3d rank on KGS, which I was never able to do before. So it must be an effect of the small sample of games I've played over the past months, or KGS has become a bit weaker. Chances that I have become stronger by mostly doing L19 reviews are slim.

There's a bit of blitzbluff to be enjoyed at the top, reviving a group in seki. Otherwise, fairly happy with the level here.


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 Post subject: Re: Knotwilg's practice
Post #105 Posted: Fri Apr 27, 2018 8:34 am 
Judan

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Knotwilg wrote:
Somehow I seem able to confirm a 3d rank on KGS, which I was never able to do before.

:clap: :salute: :bow:

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 Post subject: Re: Knotwilg's practice
Post #106 Posted: Fri Apr 27, 2018 9:31 am 
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Awesome game and congratulations on the 3D status. That's only good for our Go-club when you drop by, adds to our prestige :lol: :lol:

I'm happy I played a little part in your playing more often again! That seki is brilliant, by the way!

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 Post subject: Re: Knotwilg's practice
Post #107 Posted: Fri Apr 27, 2018 11:23 pm 
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Just curious... The second game, at 0:00 + 5x0:10, most people would say is blitz. The first, at 10 + 5x0:30, do you also consider that blitz? I remember a great page you had on SL some time ago where you preferred bonus time. (I do too, but have few chances to play that way.)

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 Post subject: Re: Knotwilg's practice
Post #108 Posted: Sat Apr 28, 2018 2:12 am 
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Calvin Clark wrote:
Just curious... The second game, at 0:00 + 5x0:10, most people would say is blitz. The first, at 10 + 5x0:30, do you also consider that blitz? I remember a great page you had on SL some time ago where you preferred bonus time. (I do too, but have few chances to play that way.)


No, the settings weren't blitz. But I played it like blitz, not using my thinking time.
Well spotted though!

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 Post subject: Re: Knotwilg's practice
Post #109 Posted: Mon May 07, 2018 2:50 pm 
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Series 1: fighting spirit, is done.

I'm not too happy overall: my fighting spirit looks more like desperado blitzing, which is not what I intended. The last game is symbolic: I was 60 points ahead and still lost through careless play. Not a display of Dan strength ...

Focus is thus on steady play. Series 2 will be about time management: play 10 games at 5/30, use my time and the opponent's. Play steady moves.


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 Post subject: Knotwilg's practice - being Otake Hideo
Post #110 Posted: Wed May 16, 2018 3:21 am 
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While I'm playing more games, now with the focus on time management, I also picked up an old idea: "being Otake Hideo".

I chose Otake as my role model because he's known for playing shape and using thickness in the endgame to nibble away the opponent's points. His style may be easier to emulate than the sharpness of Lee Sedol or the imagination of Go Seigen, although I'm probably underestimating Otake's sharpness and imagination.

Anyway, here's the idea: I pick a game by Otake and for every move choose 3 alternatives.

My score of "being Otake Hideo":

1. ratio of his move being among my 3 chosen alternatives: 62/94 ~ 66%
2. ratio of his move being my first choice: 37/94 ~ 39%

Incidentally, this was not his best game: he gave up in the endgame. So this was more like "being behind with Otake Hideo".

Oh and don't look at 1,2,3 but at A,B,C. I did a similar exercise with this game a long time ago.


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 Post subject: Re: Knotwilg's practice
Post #111 Posted: Fri May 18, 2018 2:40 pm 
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Game two in "being Otake Hideo":

top 3 hit rate: 57/93 = 61%
top 1 hit rate: 40/93 = 43%

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 Post subject: Re: Knotwilg's practice
Post #112 Posted: Tue Aug 14, 2018 2:28 am 
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Knotwilg's pro games endgame study

I'll post some examples later. First I'll explain what I'm trying to do

Idea: use close professional games for endgame study
Procedure:
- browse the game until I find
a) all important groups to be stable
b) no major areas left to develop
- then make the following evaluation
- who has sente (say: Black)
- which (major) sente moves does Black have
1) threatening a group
2) threatening to enter a territory
3) NOT ~1 point sente moves, which are really ko threats
- which big gote moves are there
- and so what are the moves I can expect (being: Black's sente and the biggest gote)
- repeat this evaluation after most of the expected moves have been played, or the game has taken an unexpected turn for me

Lessons learnt:


At my level there is really only one major lesson to be learnt and that's "Endgame = Life & death". Wherever my analysis deviates most from the pros', it's because I wrongly evaluated a group to be so alive that there were no immediate sente moves against it.

A variation on the theme is connectivity. Pros are very clever in finding big moves that affect the connectivity of a dragon. Both are examples of how pros squeeze out the available major sente before turning to a big gote. Every game I've analyzed has one or more big gote that are played much later than I had expected.

At a higher level, there are probably many more lessons to learn, such as fighting spirit, precise evaluation, kos (which can severely disturb the equilibrium) and other potential swaps.

The amateur's focus on "big gote" tells me that my/our theoretical framework overly emphasizes techniques to count the value of moves at the expense of techniques to find sente. It's sufficiently clear that we should play big sente first but we are not really offered a framework for being relentless at finding them.


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 Post subject: Re: Knotwilg's practice
Post #113 Posted: Tue Aug 14, 2018 3:07 am 
Judan

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Knotwilg wrote:
Lessons learnt:[/b]

At my level there is really only one major lesson to be learnt and that's "Endgame = Life & death".


Good point. :)

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