Life In 19x19 :: Real middle-game problem

Author:

Uberdude [ Wed Dec 11, 2019 10:00 am ]

Post subject:

Real middle-game problem

Click Here To Show Diagram Code: [go]$$Bc White to play, 7.5 komi, black 8 captures, white 2. $$ --------------------------------------- $$ | . O . . . . X . O . . . . . . . . . . | $$ | X O X X . X . X O . . X . O . . . . . | $$ | . X . X X X X O O O O X O . O . O X . | $$ | X . . , X O X O X O X X X O O O X . . | $$ | . X . X O O O X X X O . . X . . X . . | $$ | O O X X X . O . . . O . O O O O X . . | $$ | . X . X . . . O . . . . X O X X . . . | $$ | . . . X . . . . . . . . X X X . X . . | $$ | . . . . . . . . . . . . O O X O . . . | $$ | . . . O . B . . . , . . . . O O . . . | $$ | . . . . . . . . . . . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . . . . . . . X . O . O . O X O O . | $$ | . . . . . . . . . . . . . . . . X X . | $$ | . . X X X . . . . X . X X X X X X O . | $$ | . . O O O X . . . . . . O O X O O O . | $$ | . . . . . O . . . . . . . . O . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Author:	xela [ Wed Dec 11, 2019 3:03 pm ]
Post subject:	Re: Real middle-game problem
Nice! I get the feeling that something ugly has happened in the upper left earlier in the game... I got the right area but picked a different move. But LZ seems to be saying that anything in that general region will work, it's just that one point is much more LZ-intuitive than the others, and having analysed one move that's good enough to win decisively, LZ doesn't feel the need to investigate alternatives. When I do click on other moves in the same area, they're all about equally good. Actually, it's hard to find a move for white that loses from this position (A15 does the job), although there are plenty of ways to knock 10% off the winrate.

Life In 19x19 http://www.lifein19x19.com/

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Author:	Uberdude [ Wed Dec 11, 2019 10:00 am ]
Post subject:	Real middle-game problem
Click Here To Show Diagram Code [go]$$Bc White to play, 7.5 komi, black 8 captures, white 2. $$ --------------------------------------- $$ \| . O . . . . X . O . . . . . . . . . . \| $$ \| X O X X . X . X O . . X . O . . . . . \| $$ \| . X . X X X X O O O O X O . O . O X . \| $$ \| X . . , X O X O X O X X X O O O X . . \| $$ \| . X . X O O O X X X O . . X . . X . . \| $$ \| O O X X X . O . . . O . O O O O X . . \| $$ \| . X . X . . . O . . . . X O X X . . . \| $$ \| . . . X . . . . . . . . X X X . X . . \| $$ \| . . . . . . . . . . . . O O X O . . . \| $$ \| . . . O . B . . . , . . . . O O . . . \| $$ \| . . . . . . . . . . . . . . . X . . . \| $$ \| . . . . . . . . . . . . . . . . . . . \| $$ \| . . . . . . . . . . . . . . . O . . . \| $$ \| . . . . . . . . X . O . O . O X O O . \| $$ \| . . . . . . . . . . . . . . . . X X . \| $$ \| . . X X X . . . . X . X X X X X X O . \| $$ \| . . O O O X . . . . . . O O X O O O . \| $$ \| . . . . . O . . . . . . . . O . . . . \| $$ \| . . . . . . . . . . . . . . . . . . . \| $$ ---------------------------------------[/go] This move was high up my policy network, and after reading a few things I stuck with it: Click Here To Show Diagram Code [go]$$Wc $$ --------------------------------------- $$ \| . O . . . . X . O . . . . . . . . . . \| $$ \| X O X X . X . X O . . X . O . . . . . \| $$ \| . X . X X X X O O O O X O . O . O X . \| $$ \| X . . , X O X O X O X X X O O O X . . \| $$ \| . X . X O O O X X X O . . X . . X . . \| $$ \| O O X X X . O . . . O . O O O O X . . \| $$ \| . X . X . . . O . . . . X O X X . . . \| $$ \| . . . X . . . . . . . . X X X . X . . \| $$ \| . . . . . . . . . . . . O O X O . . . \| $$ \| . . . O . X . . . , . . . . O O . . . \| $$ \| . . . . . . . . . . . . . . . X . . . \| $$ \| . . . . . 1 . . . . . . . . . . . . . \| $$ \| . . . . . . . . . . . . . . . O . . . \| $$ \| . . . . . . . . X . O . O . O X O O . \| $$ \| . . . . . . . . . . . . . . . . X X . \| $$ \| . . X X X . . . . X . X X X X X X O . \| $$ \| . . O O O X . . . . . . O O X O O O . \| $$ \| . . . . . O . . . . . . . . O . . . . \| $$ \| . . . . . . . . . . . . . . . . . . . \| $$ ---------------------------------------[/go] When reviewing the game afterwards with LZ I was pleased to see it agreed: Attachment: Annotation 2019-12-11 163143.png [ 1.55 MiB \| Viewed 3357 times ]