115 - robinz v. 1986

Banaan · Post by **Banaan** » Tue May 10, 2011 12:20 am

for obs:

It looks better, but it isnt

If black goes underneath (e2), white cannot really fix at f2, because that leaves a cutting point if white pushes through at e3. The cutting point leaves too much aji, since theres also a cutting-stone at d5 already. White has to fix at f4, and if black goes underneath f2. White blocks not at g2, and black now probably lives in sente (b4 is not needed). Also, there is a move now for white at g2 (or even something like f3, for a nice invasion-start)

Click Here To Show Diagram Code: [go]$$Wcm82 Prisoner Count B - 0 W - 0 $$ +---------------------------------------+ $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . O X . . . . . . . O . O O O . | $$ | . . . O . X . . . X . . . . X X X O . | $$ | . . . . . . . . . . . . X . . . X X . | $$ | . . O . O . . . . . . . . . . . O . . | $$ | . . O X . . . . . . . . . . . . . . . | $$ | . O X O O O O . . . . . . . . . . . . | $$ | . O X X . X X X . . . . . . . X . . . | $$ | . . X O X . . . . , O . X . . , X . . | $$ | . . X . X . . . . . . . X O O O X . . | $$ | . . . . . . . . . . . O O X X O O . . | $$ | . . O . . . . . . . . . . O X O X O . | $$ | . O O . . . . . . . . . . O X X X X . | $$ | . X O X . . . . . . . . O X . . . . . | $$ | . . X O . 3 . . . , . . . . . X . . . | $$ | . . X O . 1 . . . . O . . O . . X . . | $$ | . . . X 2 4 5 6 . . . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ +---------------------------------------+[/go]

(

robinz · Post by **robinz** » Tue May 10, 2011 3:09 am

Click Here To Show Diagram Code: [go]$$Bcm83 Prisoner Count B - 0 W - 0 $$ +---------------------------------------+ $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . O X . . . . . . . O . O O O . | $$ | . . . O . X . . . X . . . . X X X O . | $$ | . . . . . . . . . . . . X . . . X X . | $$ | . . O . O . . . . . . . . . . . O . . | $$ | . . O X . . . . . . . . . . . . . . . | $$ | . O X O O O O . . . . . . . . . . . . | $$ | . O X X . X X X . . . . . . . X . . . | $$ | . . X O X . . . . , O . X . . , X . . | $$ | . . X . X . . . . . . . X O O O X . . | $$ | . . . . . . . . . . . O O X X O O . . | $$ | . . O . . . . . . . . . . O X O X O . | $$ | . O O . . . . . . . . . . O X X X X . | $$ | . X O X . . . . . . . . O X . . . . . | $$ | . . X O . . . . . , . . . . . X . . . | $$ | . . X O 1 O . . . . O . . O . . X . . | $$ | . . . X . . . . . . . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ +---------------------------------------+[/go]

My first instinct here was to come back to connect at B4. But then black plays E2 (I'm more than a little surprised he didn't play that for his last move - although it wouldn't surprise me at all if there were some tesujis hiding in this position that I'm unable to see) and I connect again at C2, I'm living in gote in a very small corner. But if I play this way:

Click Here To Show Diagram Code: [go]$$Bcm83 Prisoner Count B - 0 W - 0 $$ +---------------------------------------+ $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . O X . . . . . . . O . O O O . | $$ | . . . O . X . . . X . . . . X X X O . | $$ | . . . . . . . . . . . . X . . . X X . | $$ | . . O . O . . . . . . . . . . . O . . | $$ | . . O X . . . . . . . . . . . . . . . | $$ | . O X O O O O . . . . . . . . . . . . | $$ | . O X X . X X X . . . . . . . X . . . | $$ | . . X O X . . . . , O . X . . , X . . | $$ | . . X . X . . . . . . . X O O O X . . | $$ | . . . . . . . . . . . O O X X O O . . | $$ | . . O . . . . . . . . . . O X O X O . | $$ | . O O . . . . . . . . . . O X X X X . | $$ | . X O X . . . . . . . . O X . . . . . | $$ | . . X O 2 . . . . , . . . . . X . . . | $$ | . . X O 1 O . . . . O . . O . . X . . | $$ | . . . X 3 . . . . . . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ +---------------------------------------+[/go]

my life is much more comfortable - ample room to live in the corner (black B4 can be blocked at B3 in sente, and the C2 cut doesn't appear to be a problem), and perhaps some room to expand along the bottom later. Plus, let's not forget my stone at D5 - it seems to have more aji than you can shake a stick at

(Apologies for using a British colloquial expression, as I realise the readers of this forum are predominantly American - but I really like the phrase ;-)

) I'm not sure what's going to happen now, but I'm starting to feel quite good about this game for now. (That of course will change if white starts severely attacking/reducing my F17 group, but let's not worry about that until it happens ;-)

)

EDIT (a linguistic footnote): having just googled for the phrase, out of curiosity, I find that it seems to be considered an "Americanism" (at least, its first recorded use was apparently in the US), which means I'm totally wrong about it :lol:

1986 · Post by **1986** » Tue May 10, 2011 5:20 am

Click Here To Show Diagram Code: [go]$$Wcm84 Prisoner Count B - 0 W - 0 $$ +---------------------------------------+ $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . O X . . . . . . . O . O O O . | $$ | . . . O . X . . . X . . . . X X X O . | $$ | . . . . . . . . . . . . X . . . X X . | $$ | . . O . O . . . . . . . . . . . O . . | $$ | . . O X . . . . . . . . . . . . . . . | $$ | . O X O O O O . . . . . . . . . . . . | $$ | . O X X . X X X . . . . . . . X . . . | $$ | . . X O X . . . . , O . X . . , X . . | $$ | . . X . X . . . . . . . X O O O X . . | $$ | . . . . . . . . . . . O O X X O O . . | $$ | . . O . . . . . . . . . . O X O X O . | $$ | . O O . . . . . . . . . . O X X X X . | $$ | . X O X . . . . . . . . O X . . . . . | $$ | . . X O 1 . . . . , . . . . . X . . . | $$ | . . X O X O . . . . O . . O . . X . . | $$ | . . . X . . . . . . . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ +---------------------------------------+[/go]

robinz · Post by **robinz** » Tue May 10, 2011 5:42 am

Click Here To Show Diagram Code: [go]$$Bcm85 Prisoner Count B - 0 W - 0 $$ +---------------------------------------+ $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . O X . . . . . . . O . O O O . | $$ | . . . O . X . . . X . . . . X X X O . | $$ | . . . . . . . . . . . . X . . . X X . | $$ | . . O . O . . . . . . . . . . . O . . | $$ | . . O X . . . . . . . . . . . . . . . | $$ | . O X O O O O . . . . . . . . . . . . | $$ | . O X X . X X X . . . . . . . X . . . | $$ | . . X O X . . . . , O . X . . , X . . | $$ | . . X . X . . . . . . . X O O O X . . | $$ | . . . . . . . . . . . O O X X O O . . | $$ | . . O . . . . . . . . . . O X O X O . | $$ | . O O . . . . . . . . . . O X X X X . | $$ | . X O X . . . . . . . . O X . . . . . | $$ | . . X O O . . . . , . . . . . X . . . | $$ | . . X O X O . . . . O . . O . . X . . | $$ | . . . X 1 . . . . . . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ +---------------------------------------+[/go]

1986 · Post by **1986** » Tue May 10, 2011 7:31 pm

Click Here To Show Diagram Code: [go]$$Wcm86 Prisoner Count B - 0 W - 0 $$ +---------------------------------------+ $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . O X . . . . . . . O . O O O . | $$ | . . . O . X . . . X . . . . X X X O . | $$ | . . . . . . . . . . . . X . . . X X . | $$ | . . O . O . . . . . . . . . . . O . . | $$ | . . O X . . . . . . . . . . . . . . . | $$ | . O X O O O O . . . . . . . . . . . . | $$ | . O X X . X X X . . . . . . . X . . . | $$ | . . X O X . . . . , O . X . . , X . . | $$ | . . X . X . . . . . . . X O O O X . . | $$ | . . . . . . . . . . . O O X X O O . . | $$ | . . O . . . . . . . . . . O X O X O . | $$ | . O O . . . . . . . . . . O X X X X . | $$ | . X O X . . . . . . . . O X . . . . . | $$ | . . X O O 1 . . . , . . . . . X . . . | $$ | . . X O X O . . . . O . . O . . X . . | $$ | . . . X X . . . . . . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ +---------------------------------------+[/go]

robinz · Post by **robinz** » Wed May 11, 2011 1:10 am

Click Here To Show Diagram Code: [go]$$Bcm87 Prisoner Count B - 0 W - 0 $$ +---------------------------------------+ $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . O X . . . . . . . O . O O O . | $$ | . . . O . X . . . X . . . . X X X O . | $$ | . . . . . . . . . . . . X . . . X X . | $$ | . . O . O . . . . . . . . . . . O . . | $$ | . . O X . . . . . . . . . . . . . . . | $$ | . O X O O O O . . . . . . . . . . . . | $$ | . O X X . X X X . . . . . . . X . . . | $$ | . . X O X . . . . , O . X . . , X . . | $$ | . . X . X . . . . . . . X O O O X . . | $$ | . . . . . . . . . . . O O X X O O . . | $$ | . . O . . 1 . . . . . . . O X O X O . | $$ | . O O . . . . . . . . . . O X X X X . | $$ | . X O X . . . . . . . . O X . . . . . | $$ | . . X O O O . . . , . . . . . X . . . | $$ | . . X O X O . . . . O . . O . . X . . | $$ | . . . X X . . . . . . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ +---------------------------------------+[/go]

Well, I wanted to play a to save my cutting stone (even if only for the short term), but I couldn't see any good answer to white b, so I didn't play it.

Click Here To Show Diagram Code: [go]$$Bcm87 Prisoner Count B - 0 W - 0 $$ +---------------------------------------+ $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . O X . . . . . . . O . O O O . | $$ | . . . O . X . . . X . . . . X X X O . | $$ | . . . . . . . . . . . . X . . . X X . | $$ | . . O . O . . . . . . . . . . . O . . | $$ | . . O X . . . . . . . . . . . . . . . | $$ | . O X O O O O . . . . . . . . . . . . | $$ | . O X X . X X X . . . . . . . X . . . | $$ | . . X O X . . . . , O . X . . , X . . | $$ | . . X . X . . . . . . . X O O O X . . | $$ | . . . . . . . . . . . O O X X O O . . | $$ | . . O . b . . . . . . . . O X O X O . | $$ | . O O . a . . . . . . . . O X X X X . | $$ | . X O X . . . . . . . . O X . . . . . | $$ | . . X O O O . . . , . . . . . X . . . | $$ | . . X O X O . . . . O . . O . . X . . | $$ | . . . X X . . . . . . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ +---------------------------------------+[/go]

Instead, I'm using the aji while it's still there, to expand my centre group further (it's surely unkillable now), and in sente (if white tenukis, I'm pretty sure I can get away with a now and kill the four stones on the left). Perhaps my move is aji-keshi, I don't know, but I like the prospects it gives me for a massive reduction of that lower-central region, while also securing my centre group. After white protects (I presume with the net at a), I will tenuki myself - I haven't decided where yet, but it will probably be to either do something with my top group, or take that turn at H12. N6 and R2 are also both big endgame moves I want at some stage, but I don't think it's quite time yet (although it can't be too far away), and I'm also not sure which is best to play first (although, as I look more closely, I'm fairly sure it should be R2).

White still has some sente moves left against my lower-left corner (most notable that B4 cut - after I block and white captures, as far as I can read I still need another move to avoid dying), but he can't do any serious damage.

A very rough count of the game at this stage:

black has: ~6 points in the lower left, ~10 in the lower right, and ~45 in the centre right. Also some unknown (but probably small) number in the centre, and some other unknown, difficult to estimate (but not that large) number on top. Probably somewhere in the region of 70-75 in total.

white has: ~25 in the upper left, perhaps a bit more, ~15 in the upper right(probably less, but let's be pessimistic for now), and some hard-to-estimate number in the centre-bottom, perhaps pushing 30. Plus he has 6.5 komi.

Except, hmm, I freely admit to being terrible at counting. White will probably get a lot more than 30 from the bottom - but then my 45 was quite pessimistic for my centre-right. So who knows :-?

But I'm going to declare that this looks pretty close - too close for comfort really :mrgreen:

I guess we'll see who plays the best endgame...

robinz · Post by **robinz** » Wed May 11, 2011 3:31 am

EdLee · Post by **EdLee** » Wed May 11, 2011 3:32 am

1986,

EdLee · Post by **EdLee** » Wed May 11, 2011 3:54 am

Banaan · Post by **Banaan** » Wed May 11, 2011 4:03 am

obs:

White has to protect of course, but after that I think this is a nice tesuji:

Click Here To Show Diagram Code: [go]$$Bcm87 Prisoner Count B - 0 W - 0 $$ +---------------------------------------+ $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . O X . . . . . . . O . O O O . | $$ | . . . O . X . . . X . . . . X X X O . | $$ | . . . . . . . . . . . . X . . . X X . | $$ | . . O . O . . . . . . . . . . . O . . | $$ | . . O X . . . . . . . . . . . . . . . | $$ | . O X O O O O . . . . . . . . . . . . | $$ | . O X X . X X X . . . . W . . X . . . | $$ | . . X O X . . . . , O . X . . , X . . | $$ | . . X . X . . . . . . . X O O O X . . | $$ | . . . . . . . . . . . O O X X O O . . | $$ | . . O . . X . . . . . . . O X O X O . | $$ | . O O . . . . . . . . . . O X X X X . | $$ | . X O X . . . . . . . . O X . . . . . | $$ | . . X O O O . . . , . . . . . X . . . | $$ | . . X O X O . . . . O . . O . . X . . | $$ | . . . X X . . . . . . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ +---------------------------------------+[/go]

Tricky to answer, there are a lot of options

EdLee · Post by **EdLee** » Wed May 11, 2011 5:00 am

Banaan,

Banaan · Post by **Banaan** » Wed May 11, 2011 9:50 am

EdLee · Post by **EdLee** » Wed May 11, 2011 3:26 pm

Banaan,

1986 · Post by **1986** » Wed May 11, 2011 9:27 pm

Click Here To Show Diagram Code: [go]$$Wcm88 Prisoner Count B - 0 W - 0 $$ +---------------------------------------+ $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . O X . . . . . . . O . O O O . | $$ | . . . O . X . . . X . . . . X X X O . | $$ | . . . . . . . . . . . . X . . . X X . | $$ | . . O . O . . . . . . . . . . . O . . | $$ | . . O X . . . . . . . . . . . . . . . | $$ | . O X O O O O . . . . . . . . . . . . | $$ | . O X X . X X X . . . . . . . X . . . | $$ | . . X O X . . . . , O . X . . , X . . | $$ | . . X . X . . . . . . . X O O O X . . | $$ | . . . 1 . . . . . . . O O X X O O . . | $$ | . . O . . X . . . . . . . O X O X O . | $$ | . O O . . . . . . . . . . O X X X X . | $$ | . X O X . . . . . . . . O X . . . . . | $$ | . . X O O O . . . , . . . . . X . . . | $$ | . . X O X O . . . . O . . O . . X . . | $$ | . . . X X . . . . . . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ +---------------------------------------+[/go]

For Ed lee

EdLee · Post by **EdLee** » Wed May 11, 2011 10:41 pm

1986,

Life In 19x19

115 - robinz v. 1986

Re: 115 - robinz v. 1986

Re: 115 - robinz v. 1986

Re: 115 - robinz v. 1986

Re: 115 - robinz v. 1986

Re: 115 - robinz v. 1986

Re: 115 - robinz v. 1986

Re: 115 - robinz v. 1986

Re: 115 - robinz v. 1986

Re: 115 - robinz v. 1986

Re: 115 - robinz v. 1986