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 Post subject: Re: LZ misses a corner tesuji
Post #21 Posted: Mon May 18, 2020 8:08 am 
Honinbo

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jlt wrote:
Bill Spight wrote:
But not in every position.


Of course I agree that some positions are more adapted to the human mind than to the engine. I just believe that KataGo makes fewer errors on average, even during the endgame phase.

In the variation showed by lightvector
Click Here To Show Diagram Code
[go]$$Wc
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . X X O X . . O . . . . O O . |
$$ | X X X X . X O X X . O . O O O O X X . |
$$ | X O O O X X O O O , . O X X X X 5 . 3 |
$$ | X X O O O O X . O X . O X . . 2 1 O . |
$$ | O O X O . . X . O O X X X . O 4 X X . |
$$ | . . . . . . . . . . O O O X O O O X . |
$$ | . O O O . . . O . . . X O O O X X . . |
$$ | . X O X O . . O . . . X X O X O X . . |
$$ | . O . X O . O X X , O X O X X , X . . |
$$ | . X X X . O X . . . . X . . . . X O . |[/go]


Black loses two stones but gets sente. Black could have saved them in gote by playing :b4: at :w5:. I wonder how a human reasoning could have come to the same conclusion that it's better to sacrifice the stones for sente.


That's a question of evaluation. Humans are not bad at it in the endgame. Two stones for sente? Not much of a sacrifice. The key is to avoid the ko. And at first glance the ko looks good for White. :)

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At some point, doesn't thinking have to go on?
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 Post subject: Re: LZ misses a corner tesuji
Post #22 Posted: Mon May 18, 2020 8:09 am 
Judan

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jlt, I need gaming hardware and time for such interesting studies. My office PC won't do.

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