I guess why my move is duff comes to a comparison of:
- Click Here To Show Diagram Code
[go]$$Wc Duff
$$ ---------------------------------------
$$ | . . . . . . . . . O X X O . O . O X . |
$$ | . X O O . . . . O . O X O O . O O X . |
$$ | X . X O . . O . . . O X X O . O X . . |
$$ | . X X O . O . . . , . . X O O X X . . |
$$ | . . . . . . . . O O O . X O . . . . . |
$$ | . . X . . . X . . . X . X O . X . . . |
$$ | . X . . . . . . X . . X . X X . X . . |
$$ | . . . . . . . . . . . . X O . O X . . |
$$ | . O . . . . . . . . . . X O O . . X . |
$$ | . . . , . . . . . , . X . . . O . X . |
$$ | . . O . . . . . . . . . . . O O X . . |
$$ | . . . . . . . . . . . . . . . X O O . |
$$ | . . . . . . . . . . . . . . . 1 X O . |
$$ | . . O . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . O . . . . . X . . . . 4 2 5 . . |
$$ | . . O . . X . X . . . . X . . O 3 . . |
$$ | . . . X . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]
against:
- Click Here To Show Diagram Code
[go]$$W
$$ ---------------------------------------
$$ | . . . . . . . . . O X X O . O . O X . |
$$ | . X O O . . . . O . O X O O . O O X . |
$$ | X . X O . . O . . . O X X O . O X . . |
$$ | . X X O . O . . . , . . X O O X X . . |
$$ | . . . . . . . . O O O . X O . . . . . |
$$ | . . X . . . X . . . X . X O . X . . . |
$$ | . X . . . . . . X . . X . X X . X . . |
$$ | . . . . . . . . . . . . X O . O X . . |
$$ | . O . . . . . . . . . . X O O . . X . |
$$ | . . . , . . . . . , . X . . . O . X . |
$$ | . . O . . . . . . . . . . . O O X . . |
$$ | . . . . . . . . . . . . . . . X O O . |
$$ | . . . . . . . . . . . . . 6 7 . X O . |
$$ | . . O . . . . . . . . . . . 1 . 5 . . |
$$ | . . . . . . . . . . . . . . . 4 . . . |
$$ | . . . O . . . . . X . . . . . 2 3 . . |
$$ | . . O . . X . X . . . . X . 8 O 9 . . |
$$ | . . . X . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]
It's an interesting question.
- Black seems to have more forcing moves in the centre in the second diagram.
- Black's shape in the lower right corner is worse in the second diagram.
- The lower side is more open in the first diagram.
On balance, my preference (for White) is for the first diagram. However, if a strong bot says the second is best, it's more likely to be correct than me.
Thanks for the problem - it was fun.