Life In 19x19

Posted: **Tue Jul 05, 2011 7:39 am**

Click Here To Show Diagram Code: [go]$$Bcm41 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . O . . . . . . . . . | $$ | . . . O . O . . . , . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X . . . . . . . . . . . . . O . . | $$ | . . . . O . . . . . 6 . . . . X O . . | $$ | . . X . . . . . . . . . O O X O X . . | $$ | . . . . . . . . . . . X X O O O X . . | $$ | . . . X . . . . . , . . . X X X . . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . . . X X . X . . . . . . X O . . . | $$ | . . X , X O . . . O . . X . . X O . . | $$ | . . . . . O . O . . . . X O X . O . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Click Here To Show Diagram Code: [go]$$Bcm41 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . O . . . . . . . . . | $$ | . . . O . O . . . , . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X . . . . . . . . . . . . . O . . | $$ | . . . . O . . . . . a . . . . X O . . | $$ | . . X . . . . . . . . . O O X O X . . | $$ | . . . . . . . . . . . 5 X O O O X . . | $$ | . . . X . f . . . , . . . X X X . . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . e . . . . . O . . . | $$ | . . . . X X . X . . . . . . X O . . . | $$ | . . X , X O . . . O . . X c . X O . . | $$ | . . b . . O . O . . . . X O X . O . . | $$ | . . . d . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

I wanted all of these points. 'b' is iffy because it hurts my bottom group a bit, but the rest look pretty good. 'c' is slightly less big, now that there's at least some black stones above for these to run to if I steal their base. Essentially though, it seemed TOO good for black to let it turn the curner here in the middle, so I jumped ahead to prevent it. I'll have to think about the biggest next move again in a bit, but I want this now. I like the looks of 'f' actually, not for any threatened followup, but for the safe reduction.

Posted: **Wed Jul 06, 2011 7:47 pm**

Click Here To Show Diagram Code: [go]$$Bcm41 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . O . . . . . . . . . | $$ | . . . O . O . . . , . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X . . . . . . . . . . . . . O . . | $$ | . . . . O . . . . . O . . . . X O . . | $$ | . . X . . . . . . . . . O O X O X . . | $$ | . . . . . . . . . . . X X O O O X . . | $$ | . . . X . . . . . , . . . X X X . . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . . . X X . X . . . . . . X O . . . | $$ | . . X , X O . . . O . . X . . X O . . | $$ | . . . . . O . O . . . . X O X . O . . | $$ | . . . . . . . . . 7 . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Took 17:03 to decide
value: 51.5%

Click Here To Show Diagram Code: [go]$$Bcm47 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . O . . . . . . . . . | $$ | . . . O . O . . . , . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X . . . . . . . . . . . . 2 O . . | $$ | . . . . O . . . . . O . . . . X O . . | $$ | . . X . . . . . . 3 . . O O X O X . . | $$ | . . . . . . . . . . . X X O O O X . . | $$ | . . . X . . . . . , . . . X X X . . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . . . X X . X . . . . . . X O . . . | $$ | . . X , X O . . . O . . X 5 . X O . . | $$ | . . . . . O . O . 6 9 . X O X . O . . | $$ | . . . . . . . . 7 1 8 0 . 4 . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Still seems to greatly overestimate the aji of its 2 stones in the upper right. For the people who were curious, I ran again w/ a significantly higher search count:

: revised.png (629.88 KiB) Viewed 10882 times

It came up with this sequence:

Click Here To Show Diagram Code: [go]$$Bcm47 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . O . . . . . . . . . | $$ | . . . O . O . . . , . . . . . O . . . | $$ | . . . . . . . . . . . . . . 8 . . . . | $$ | . . X . . . . . . . . . . 9 7 4 O . . | $$ | . . . . O . . . . . O . . 6 5 X O . . | $$ | . . X . . . . . . . . . O O X O X . . | $$ | . . . . . . . . . . . X X O O O X . . | $$ | . . . X . . . . . , . . . X X X . . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . O . 1 . | $$ | . . . . X X . X . . . . . . X O . . . | $$ | . . X , X O . . . O . . X 3 . X O . . | $$ | . . . . . O . O . . . . X O X . O . . | $$ | . . . . . . . . . . . . . 2 . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

seems much worse...

Posted: **Thu Jul 07, 2011 8:11 am**

Click Here To Show Diagram Code: [go]$$Bcm41 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . O . . . . . . . . . | $$ | . . . O . O . . . , . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X . . . . . . . . . . . . . O . . | $$ | . . . . O . . . . . O . . . . X O . . | $$ | . . X . . . . . . . . . O O X O X . . | $$ | . . . . . . . . . . . X X O O O X . . | $$ | . . . X . . . . . , . . . X X X . . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . . . X X . X . . . . . . X O . . . | $$ | . . X , X O . . . O . . X . . X O . . | $$ | . . . . . O . O . 8 . . X O X . O . . | $$ | . . . . . . . . 0 X 9 . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Yeah, I've been leaving this group hanging for a bit too long. Really wanted to slide into the corner more for eyespace instead, but didn't like how much white could threaten to sever connections, while undercutting my base.

Posted: **Thu Jul 07, 2011 11:46 am**

Fuego doesn't like your suggestions...

Click Here To Show Diagram Code: [go]$$Bcm41 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . O . . . . . . . . . | $$ | . . . O . O . . . , . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X . . . . . . . . . . . . . O . . | $$ | . . . . O . . . . . O . . . . X O . . | $$ | . . X . . . . . . . . . O O X O X . . | $$ | . . . . . . . . . . . X X O O O X . . | $$ | . . . X . . . . . , . . . X X X . . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . . . X X . X . . . . . . X O . . . | $$ | . . X , X O . . . O . . X . . X O . . | $$ | . . . . . O . O . O . . X O X . O . . | $$ | . . . . . . . . 9 X . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Value: 51.0%

Click Here To Show Diagram Code: [go]$$Bcm49 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . O . . . . . . . . . | $$ | . . . O . O . . . , . . . . . O . . . | $$ | . . . . . . . . . . . . . . . 8 . . . | $$ | . . X . . . . . . . . . . . . . O . . | $$ | . . . . O . . . . . O . . . . X O . . | $$ | . . X . . . . . . . . . O O X O X . . | $$ | . . . . . . . . . . . X X O O O X . . | $$ | . . . X . . . . . , . . . X X X . . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . 6 . . . . . . . . . | $$ | . . . . . . . . . 9 0 . . . 7 O . . . | $$ | . . . . X X . X . . . . . . X O . . . | $$ | . . X , X O . . . O . . X . . X O . . | $$ | . . . . . O . O . O 4 . X O X . O . . | $$ | . . . . . . . . 1 X 2 3 . . . . . . . | $$ | . . . . . . . . . . 5 . . . . . . . . | $$ ---------------------------------------[/go]

I like the undercutting that fuego is trying, but with the corner open I don't think black can really do much here. All white has to do is slide (which is pretty big). Overall I still prefer white here, but the game's not over yet (I can't help but root for Fuego).

Posted: **Thu Jul 07, 2011 12:18 pm**

Click Here To Show Diagram Code: [go]$$Bcm41 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . O . . . . . . . . . | $$ | . . . O . O . . . , . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X . . . . . . . . . . . . . O . . | $$ | . . . . O . . . . . O . . . . X O . . | $$ | . . X . . . . . . . . . O O X O X . . | $$ | . . . . . . . . . . . X X O O O X . . | $$ | . . . X . . . . . , . . . X X X . . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . . . X X . X . . . . . . X O . . . | $$ | . . X , X O . . . O . . X . . X O . . | $$ | . . . . . O . O . O . . X O X . O . . | $$ | . . . . . . . 0 X X . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Posted: **Thu Jul 07, 2011 3:34 pm**

emeraldemon wrote:
(I can't help but root for Fuego).

Posted: **Thu Jul 07, 2011 6:51 pm**

Click Here To Show Diagram Code: [go]$$Bcm51 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . O . . . . . . . . . | $$ | . . . O . O . . . , . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X . . . . . . . . . . . . . O . . | $$ | . . . . O . . . . . O . . . . X O . . | $$ | . . X . . . . . . . . . O O X O X . . | $$ | . . . . . . . . . . . X X O O O X . . | $$ | . . . X . . . . . , . . . X X X . . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . . . X X . X . . . . . . X O . . . | $$ | . . X , X O . . . O . . X . . X O . . | $$ | . . . . . O . O . O . . X O X . O . . | $$ | . . . . . . . O X X 1 . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Value: 51.9%
This is the most confident Fuego has ever been about the game, I think.

Click Here To Show Diagram Code: [go]$$Bcm51 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . O . . . . . . . . . | $$ | . . . O . O . . . , . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X . . . . . . . . . . . . . O . . | $$ | . . . . O . . . . . O . . . . X O . . | $$ | . . X . . . . . . . . . O O X O X . . | $$ | . . . . . . . . . . . X X O O O X . . | $$ | . . . X . . . . . , . . . X X X . . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . . . X X . X . . . . . . X O . . . | $$ | . . X , X O . . . O . . X 3 7 X O . . | $$ | . . . . . O . O 9 O . . X O X 6 O . . | $$ | . . 8 . 0 . . O X X 1 . 5 2 4 . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Is there anything in particular people are interested in besides the value & the main line?

Posted: **Fri Jul 08, 2011 9:46 am**

Click Here To Show Diagram Code: [go]$$Bcm51 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . O . . . . . . . . . | $$ | . . . O . O . . . , . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X . . . . . . . . . . . . . O . . | $$ | . . . . O . . . . . O . . . . X O . . | $$ | . . X . . . . . . . . . O O X O X . . | $$ | . . . . . . . . . . . X X O O O X . . | $$ | . . . X . . . . . , . . . X X X . . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . . . X X . X . . . . . . X O . . . | $$ | . . X , X O . 2 . O . . X . . X O . . | $$ | . . . . . O . O . O . . X O X . O . . | $$ | . . . . . . . O X X X . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Don't want to get cut here. Next, I'll either slide towards the corner or go up and out.

Posted: **Fri Jul 08, 2011 9:43 pm**

Click Here To Show Diagram Code: [go]$$Bcm51 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . O . . . . . . . . . | $$ | . . . O . O . . . , . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X . . . . . . . . . . . . . O . . | $$ | . . . . O . . . . . O . . . . X O . . | $$ | . . X . . . . . . . . . O O X O X . . | $$ | . . . . . . . . . . . X X O O O X . . | $$ | . . . X . . . . . , . . . X X X . . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . . . X X . X 3 . . . . . X O . . . | $$ | . . X , X O . O . O . . X . . X O . . | $$ | . . . . . O . O . O . . X O X . O . . | $$ | . . . . . . . O X X X . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

value: 51.5%

Click Here To Show Diagram Code: [go]$$Bcm53 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . 5 . . . . . O . . . . . . . . . | $$ | . . 3 O . O . . . , . . . . . O . . . | $$ | . . . . . . . . . . . . . . . 6 . . . | $$ | . . X . . . . . . . . . . . . . O . . | $$ | . . . . O . . . . . O . . . . X O . . | $$ | . . X . . . . . . . . . O O X O X . . | $$ | . . . . . . . . . . . X X O O O X . . | $$ | . . . X . . . . . , . . . X X X . . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . 9 . | $$ | . . . . . . . . . . . . . . . . 8 0 . | $$ | . . . . . . . . . . . . . . . O . 7 . | $$ | . . . . X X . X 1 . . . . . X O . . . | $$ | . . X , X O . O . O . . X . . X O . . | $$ | . . . . . O . O . O . . X O X . O . . | $$ | . . 2 . 4 . . O X X X . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

What's the deal with

and

? I know I said Fuego evaluates both sides the same way, but somehow white seems to take all the pointless gote moves in this sequence...

Posted: **Sat Jul 09, 2011 2:10 am**

Wait, I'm confused about how Fuego thinks, again.

So the numbers on the board are the quantity of MC game-play-outs it started there, and every victorious play-out adds weight to that play-out's starting move, and high placing moves (2nd, 3rd place etc) are tried earlier in later play-outs (as they become established)?

Could you give us some samples of the finished MC play-outs Fuego reaches ? I am curious how crazy they look. (Sorry if I just overlooked them earlier). Would it be useful to post a white's-move-values board for the first move after Fuego's chosen move, or can we just infer that from Fuego's predicted sequences?

Posted: **Sat Jul 09, 2011 8:46 am**

I will try to explain in a bit more detail how Fuego works. There are two parts: the tree search and the playouts.

The tree starts completely empty (just the root node). If the same move is ever tried 3 times in a position in playouts, that node is added to the tree, so the tree of variations grows over time (that number 3 is a parameter than can be tweaked). Periodically Fuego goes through and prunes nodes in the tree with few visits, so the tree is constantly being reshaped over time.

Inside the tree, moves are chosen with basically a minimax policy: black chooses the move with the highest win %, then white chooses the response with the best win % for white, and so on down the tree. When the end of the tree is reached, the pseudo-random playout begins, and Fuego plays until a win or a loss. At that point, the win % for every move in that playout is adjusted.

The thing I think you're talking about is something I explained a bit of before, called RAVE. In the tree, instead of just looking at a win% for a move at a particular position, Fuego also considers the win% for other times that move was played, elsewhere in the tree. The idea is that good moves tend to be good moves even when played at different times, so Fuego can use that information to evaluate moves more quickly (RAVE stands for Rapid Action Value Estimation).

Of course, we all now order really does matter sometimes, so RAVE is actually on a kind of clock, where as the search goes on, less and less weight is given to the move's plays at other times, until eventually only the plays from that exact node are counted.

Now the interesting part: what playouts look like! This sgf has 4 sample playouts from the last move (they take a few moves to diverge):

Notice they play until everything is single-point eyes. Also remember it's area scoring, not territory scoring. As explained earlier in the thread, these aren't really "random", rather they're somewhat random with some simple heuristics (never fill your own eyes, capture stones, extend from atari, etc). You can judge from the sgf about how they look.

Posted: **Mon Jul 11, 2011 11:34 am**

Click Here To Show Diagram Code: [go]$$Bcm51 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . O . . . . . . . . . | $$ | . . . O . O . . . , . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X . . . . . . . . . . . . . O . . | $$ | . . . . O . . . . . O . . . . X O . . | $$ | . . X . . . . . . . . . O O X O X . . | $$ | . . . . . . . . . . . X X O O O X . . | $$ | . . . X . . . . . , . . . X X X . . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . . . X X . X X . . . . . X O . . . | $$ | . . X , X O . O . O . . X . . X O . . | $$ | . . . . . O . O . O . . X O X . O . . | $$ | . . . 4 . . . O X X X . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

As painful as this is, let's see about getting some eyespace.

Posted: **Mon Jul 11, 2011 5:27 pm**

Click Here To Show Diagram Code: [go]$$Bcm51 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . O . . . . . . . . . | $$ | . . . O . O . . . , . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X . . . . . . . . . . . . . O . . | $$ | . . . . O . . . . . O . . . . X O . . | $$ | . . X . . . . . . . . . O O X O X . . | $$ | . . . . . . . . . . . X X O O O X . . | $$ | . . . X . . . . . , . . . X X X . . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . . . X X . X X . . . . . X O . . . | $$ | . . X , X O . O . O . . X . . X O . . | $$ | . . . . . O . O . O . . X O X . O . . | $$ | . . 5 O . . . O X X X . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Value: 51.2%

Click Here To Show Diagram Code: [go]$$Bcm55 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . O . . . . . . . . . | $$ | . . . O . O . . . , . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X . . . . . . . . . . . . . O . . | $$ | . . . . O . . . . . O . . . . X O . . | $$ | . . X . . . . . . . . . O O X O X . . | $$ | . . . . . . . . . . . X X O O O X . . | $$ | . . . X . . . . . , . . . X X X . . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . 5 0 . . 9 8 . . . . | $$ | . . . . . . . . . . 6 . . . 7 O . . . | $$ | . . . . X X . X X 4 . . . . X O . . . | $$ | . . X , X O . O . O . . X . . X O . . | $$ | . . 3 2 . O . O . O . . X O X . O . . | $$ | . . 1 O . . . O X X X . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

This one took Fuego a bit longer than usual, there some other points it was considering:

Click Here To Show Diagram Code: [go]$$Bcm51 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . O . . . . . . . . . | $$ | . . b O . O . . . , . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X . d . . . . . . . . . . . O . . | $$ | . . . . O . . . . . O . . . . X O . . | $$ | . . X . . . . . . c . . O O X O X . . | $$ | . . . . . . . . . . . X X O O O X . . | $$ | . . . X . . . . . , . . . X X X . . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . . . X X . X X . . . . . X O . . . | $$ | . . X , X O . O . O . . X . . X O . . | $$ | . . . . . O . O . O . . X O X . O . . | $$ | . . a O . . . O X X X . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

a: 66%
b: 11%
c: 8%
d: 4%

Considering many of the moves have been 85-95% on a particular move, there were a lot of choices in Fuego's mind for this one. I like the forcing moves here, if black can keep white weak on the bottom that middle wall may be worth something after all. That said, white may just have enough space to live outright, so maybe it doesn't matter.

I also agree that b in the diagram above is a big point, I think Chew feels that way also, it'll be really interesting to see who gets there first.

Posted: **Tue Jul 12, 2011 7:42 am**

Click Here To Show Diagram Code: [go]$$Bcm51 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . O . . . . . . . . . | $$ | . . . O . O . . . , . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X . . . . . . . . . . . . . O . . | $$ | . . . . O . . . . . O . . . . X O . . | $$ | . . X . . . . . . . . . O O X O X . . | $$ | . . . . . . . . . . . X X O O O X . . | $$ | . . . X . . . . . , . . . X X X . . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . . . X X . X X . . . . . X O . . . | $$ | . . X , X O . O . O . . X . . X O . . | $$ | . . . 6 . O . O . O . . X O X . O . . | $$ | . . X O . . . O X X X . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Protects my connection in sente against a threat to live. I'll still have to play to escape or possibly try to make eyes, regardless, so this changes little... There's a REALLY intimidating amount of black strength where I've got to run, though... I need to decide if F1 will live.

Posted: **Tue Jul 12, 2011 9:07 pm**

Life In 19x19

124. Chew (3k) vs Fuego (Bot)

Re: 124. Chew (3k) vs Fuego (Bot)

Re: 124. Chew (3k) vs Fuego (Bot)

Re: 124. Chew (3k) vs Fuego (Bot)

Re: 124. Chew (3k) vs Fuego (Bot)

Re: 124. Chew (3k) vs Fuego (Bot)

Re: 124. Chew (3k) vs Fuego (Bot)

Re: 124. Chew (3k) vs Fuego (Bot)

Re: 124. Chew (3k) vs Fuego (Bot)

Re: 124. Chew (3k) vs Fuego (Bot)

Re: 124. Chew (3k) vs Fuego (Bot)

Re: 124. Chew (3k) vs Fuego (Bot)

Re: 124. Chew (3k) vs Fuego (Bot)

Re: 124. Chew (3k) vs Fuego (Bot)

Re: 124. Chew (3k) vs Fuego (Bot)

Re: 124. Chew (3k) vs Fuego (Bot)