My week in numbers (was "Tiny steps towards shodan")

RBerenguel · **#201**

SoDesuNe wrote:

Sounds really cool! Maybe I have the chance to join someday (next year?) =)

I'd definitely love to meet you there (or somewhere else would work, but this is being awesome so far, and we have 2 other Germans already here, although for now I haven't tried to test my rusty knowledge of Deutsch mit ihnen – or was it Ihnen? –

)

RBerenguel · **#202**

Feeling tsumego-tiredness, Törmänätor style

RBerenguel · **#203**

Friday is here already, meaning the camp is coming to a close. Today was the last lecture, and tomorrow we have an EGF C-class tournament with 4 rounds (IIRC, -2 reduced handicap.) I think it has been very worthwhile, and that actually my reading ability has gotten up a level since even this Sunday.

As commented above, we've had Törmänätor-flavoured tsumego levels (a pun with Finnish pronunciation of Antti's family name, since he compiled the tsumego packages.) Supposedly, on first day, levels were supposed to be:

A class: Dan
B class: 1k-5/6k
C class: lower than that

Juri decided to in addition print Cho Elementary and Intermediate for people finding C difficult. I was supposed to do B, but after day 2 it was clear the ranks/class had some kind of shift...

A class: high dan
B class: 2d-2/3k
C class: lower than that

So, I started to do C and whatever I could manage from B. C class problems are relatively common shapes, but not straightforward ones (they are considerably harder in average than LCH's tsumego books up to 3, which are the ones I've checked, for instance.) But of course, we are here to do this, so I've spent up to 30 minutes in reading B class problems. Even then, some still leave me puzzled, but some I read. And this stubborness seems to have already made my reading much, much clearer. Let's hope I can keep this flow when I'm back home!

SoDesuNe · **#204**

I remember a similar experience when I was in the NGA.
I could easily solve the B-class Tsumego and even got a discount for the next month because I got the highest score. Then I decided to go for A-class Tsumego and I was lucky when I could solve one or two ^^

My tip for keeping up the flow: Do less but keep it consistent.

RBerenguel · **#205**

SoDesuNe wrote:

I remember a similar experience when I was in the NGA.
I could easily solve the B-class Tsumego and even got a discount for the next month because I got the highest score. Then I decided to go for A-class Tsumego and I was lucky when I could solve one or two ^^

My tip for keeping up the flow: Do less but keep it consistent.

Totally. I think I'll do 1-2 hard ones per day in addition to my usual easy anki decks.

As for NGA comparison, the easiest B class problems of the camp are among the last 3-5 of an usual NGA B-month assignment. Which are always the real hard ones :/

RBerenguel · **#206**

I'll make a write up about the camp sooner or later, but for now, here is the legged 9x9 board (with bowls) I got while in Helsinki. The first two games on it were against Cho Mikyung 8p from Korea

(I lost both, first one normal with komi, second one with reverse komi.) She said a couple of my moves were good, but I was a little too aggressive in the second, with a more normal defense I may have won.

In the picture, we were reviewing one of Go Seigen's 9x9 games with Reino, Jeff and IIRC, Marcus.

Attachment:

SmallBoard.jpg [ 49.43 KiB | Viewed 8724 times ]

Abyssinica · **#207**

What an interesting position for black to be alive in since white has 0 ko threats.

RBerenguel · **#208**

Yup, endgame position actually. This is a game between Go Seigen and Miyamoto Naoki, supposedly played to decide correct komi for 9x9. They alternated between B and W, and both won as black by 4 points.

RBerenguel · **#209**

I haven't yet taken time to review this game (actually, my list of "for review" in 9x9 is currently sitting at around 60 or so games, so...) but I found it quite weird. It would have been nice if I could say I read everything from move 17 onwards, but no. I just 'knew' the white group on the left was way too thin for a strong attack, the rest just followed from this.

SoDesuNe · **#210**

Click Here To Show Diagram Code: [go]$$Bc Tsumego-Time! $$ +-------------------+ $$ | . . . . X X O . . | $$ | . . . . X O O . 1 | $$ | . . , . X X O . . | $$ | . . . . . X O . . | $$ | . X X X X O O O O | $$ | X X O O O X X X O | $$ | O X O X X X , X X | $$ | O O O O X . X O X | $$ | O . O . O O O O X | $$ +-------------------+[/go]

RBerenguel · **#211**

Yup, but I had won already

SoDesuNe · **#212**

RBerenguel · **#213**

SoDesuNe wrote:

:rambo:

I know, I know

RBerenguel · **#214**

SoDesuNe wrote:

Click Here To Show Diagram Code: [go]$$Bc Tsumego-Time! $$ +-------------------+ $$ | . . . . X X O . . | $$ | . . . . X O O . 1 | $$ | . . , . X X O . . | $$ | . . . . . X O . . | $$ | . X X X X O O O O | $$ | X X O O O X X X O | $$ | O X O X X X , X X | $$ | O O O O X . X O X | $$ | O . O . O O O O X | $$ +-------------------+[/go]

Hmmmm also, this does not tick as the correct one? I can't find a non-seki (and non-dying) solution for W, though, so maybe it works, too.

Bill Spight · **#215**

Click Here To Show Diagram Code: [go]$$Bc Yose time $$ +-------------------+ $$ | . . . . X X O . . | $$ | . . . . X O O . 1 | $$ | . . , . X X O 2 3 | $$ | . . . . . X O . . | $$ | . X X X X O O O O | $$ | X X O O O X X X O | $$ | O X O X X X , X X | $$ | O O O O X . X O X | $$ | O . O . O O O O X | $$ +-------------------+[/go]

OC, the ko threat situation matters, but :b1:

is normally not best because :w2:

can make an eye, and then :b3:

can only make seki in gote.

RBerenguel · **#216**

Ah, I see. Here gote or sente were already gone, so not a big issue. I was aware of 8-in-the-corner being "something," but since I wasn't sure if it was ko or seki, I didn't even bother to check as I was already way ahead. But handy to refresh it for the future

SoDesuNe · **#217**

Ahhh, nice!
I thought Gote Seki was the best but after seeing the Sensei's page something clicked ^^

Refreshment is always nice ; )

Abyssinica · **#218**

RBerenguel wrote:

Yup, endgame position actually. This is a game between Go Seigen and Miyamoto Naoki, supposedly played to decide correct komi for 9x9. They alternated between B and W, and both won as black by 4 points.

I'm thinking about this position again.

White plays the dame to put the black group in atari and black takes the ko. White, not wanting to lose any points, passes as his ko threat. If black passes, does the game end or does white retake the ko?

Bill Spight · **#219**

Abyssinica wrote:

RBerenguel wrote:

Yup, endgame position actually. This is a game between Go Seigen and Miyamoto Naoki, supposedly played to decide correct komi for 9x9. They alternated between B and W, and both won as black by 4 points.

I'm thinking about this position again.

White plays the dame to put the black group in atari and black takes the ko. White, not wanting to lose any points, passes as his ko threat. If black passes, does the game end or does white retake the ko?

I expect that the game was played under the Japanese '49 rules, which did not allow an unresolved ko to remain on the board at the end of the game. So Black had to capture the White stones.

The situation is more complicated under the '89 rules, but the result should be the same, I think.

RBerenguel · **#220**

The game, indeed is quite old, so probably '49 rules

My week in numbers (was "Tiny steps towards shodan")

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