I like that the variations and comments are authentic. I think they are correct but it is also interesting how KataGo evaluates some of them negatively.
I refer especially to this diagram. Btw you can make diagram easily with the copy wizard in
GoWrite2.
- Click Here To Show Diagram Code
[go]$$B "a super solid position which would be good for a handicap game"
$$ +--------------------------------------+
$$ | . . . . . . . . . . . . . . . . . . .|
$$ | . . . . . . . . . . . . . . . . . . .|
$$ | . . . . . . . . . . . . . . . . . . .|
$$ | . . . O . O . . . , . . . . . X . . .|
$$ | . . . . . . . . . . . . . . . . . . .|
$$ | . . X . . . . . . . . . . . . . . . .|
$$ | . . . . . . . . . . . . . . . . . . .|
$$ | . . . . . . . . . . . . . . . . . . .|
$$ | . . . . . . . . . . . . . . . . . . .|
$$ | . . . , . . . . . , . . . . . , . . .|
$$ | . . . . . . . . . . . . . . . . . . .|
$$ | . . . . . . . . . . . . . . . . . . .|
$$ | . . . . . . . . . . . . . . . . . . .|
$$ | . . X . . . . . . . . . . . . . X . .|
$$ | . . 3 . 8 7 . . . . . . . . . . . . .|
$$ | . . 2 X 6 5 . . . , . . . . . X . . .|
$$ | . . O . 4 X . . . . . . . O . . . . .|
$$ | . . . . O 1 . . . . . . . . . . . . .|
$$ | . . . . . . . . . . . . . . . . . . .|
$$ +--------------------------------------+[/go]
The KataGo suggested continuation follows.
- Click Here To Show Diagram Code
[go]$$Bm9 KataGo continuation
$$ +--------------------------------------+
$$ | . . . . . . . . . . . . . . . . . . .|
$$ | . . . . . . . . . . . . . . . . . . .|
$$ | . . . . . . . . . . . . . . . . . . .|
$$ | . . . O . O . . . , . . . . . X . . .|
$$ | . . . . . . . . . . . . . . . . . . .|
$$ | . . X . . . . . . . . . . . . . . . .|
$$ | . . . . . . . . . . . . . . . . . . .|
$$ | . . . . . . . . . . . . . . . . . . .|
$$ | . . . . . . . . . . . . . . . . . . .|
$$ | . . . , . . . . . , . . . . . , . . .|
$$ | . . . . . . . . . . . . . . . . . . .|
$$ | . . . . . . 5 . . . . . . . . . . . .|
$$ | . . . . . . . . . . . . . . . . . . .|
$$ | . . X 3 1 . . . . . . . . . . . X . .|
$$ | . . X 2 O X . . . . . . . . . . . . .|
$$ | . . O X O X . . . 4 . . . . . X . . .|
$$ | . . O . O X . . . . . . . O . . . . .|
$$ | . . . . O X . . . . . . . . . . . . .|
$$ | . . . . . . . . . . . . . . . . . . .|
$$ +--------------------------------------+[/go]
The comment was "a super solid position which would be good for a handicap game". Possibly black is closer to the finish line in the diagram than in the game. That is despite giving ground black could have easier time winning in the end and this is why I'm inclined to agree with the comment.
Some of the moves get a bad evaluation from KataGo.
is evaluated as -2.3 and
as -4.7. The whole sequence is -7.8. That means these are not the 100% moves and maybe not the 80% moves either. In Japan, I believe, they say you should play the 80% moves, which might come from problem books that rate answers. The idea is that it is too difficult to find the best move every time and often the best move leads to more difficult positions later. The imaginary 80% is supposed to be just right (if I recall) but it might depend on your rank. Maybe these are the 60% moves and even those moves might be good enough when they bring us closer to the finish line.
Here then might be a suggestion for a psychology of white's. That is white is much less worried about playing handicap game with someone that tries to play 100% moves all the time than someone that only just does enough to secure the win. The player that aims for 100% might keep a 30 point lead (judged by KataGo) for anything between 50 and 150 moves but he is likely to eventually have a complete collapse on the board. On the other hand, the other player can pick up the ball in the endgame and has more control of how close he allows the game to become. White might feel he has less chance against the second player.