Doesn't B have resources in the final position?
First B cuts to see if W wants to kill the central two black stones. Assume W does:
- Click Here To Show Diagram Code
[go]$$B
$$ -----------------------------------------
$$ | . . . . . . . . . . . . . . . . O . . |
$$ | . . . O . . . . . . . . . . O O X X . |
$$ | . . X O O . O . . O . . . O X X . . . |
$$ | . X . X . . . . . , . . O O . X . . . |
$$ | . . . X . . . . . . O O X O . . . . . |
$$ | . X . . X . . . O O X X . X X . X . . |
$$ | . . O . . . . X X . . . X . . O X . . |
$$ | . . . . X . . . . . X O O X . O . . . |
$$ | . . . O O . . O X O O X X X . . . . . |
$$ | . . O , . 6 O 5 X , . X . . . X X . . |
$$ | . . . . . X 3 4 . . X . O . . O . . . |
$$ | . . . . O . . O X . . . . O . O X . . |
$$ | . X O O . . . . O . 2 . . . . X X . . |
$$ | X . X O X . . . O . X X O O . . X . . |
$$ | . X X X O . . . . . 1 O . . O O X . . |
$$ | . . O X O O . . . O X . . . . O O X . |
$$ | . X X O O X . . . O . . O . O X X . . |
$$ | . X O . . . . . . . . . . O X . X . . |
$$ | . . . . . . . . . . . . . . . X . . . |
$$ -----------------------------------------[/go]
Now B commences central operations. Again, W has a choice but W 8 below is (I think) forced if W wants the lot:
- Click Here To Show Diagram Code
[go]$$Bm7
$$ -----------------------------------------
$$ | . . . . . . . . . . . . . . . . O . . |
$$ | . . . O . . . . . . . . . . O O X X . |
$$ | . . X O O . O . . O . . . O X X . . . |
$$ | . X . X . . . . . , . . O O . X . . . |
$$ | . . . X . . . . . . O O X O . . . . . |
$$ | . X . . X . . . O O X X . X X . X . . |
$$ | . . O . . . . X X . . . X . . O X . . |
$$ | . . . . X . . . . . X O O X . O . . . |
$$ | . . . O O . . O X O O X X X . . . . . |
$$ | . . O , . O O X X , . X . . . X X . . |
$$ | . . . . . X X O 5 . X . O . . O . . . |
$$ | . . . . O . 8 O X 4 6 . . O . O X . . |
$$ | . X O O . . . 7 O 1 O 2 . . . X X . . |
$$ | X . X O X . . . O 3 X X O O . . X . . |
$$ | . X X X O . . . . . X O . . O O X . . |
$$ | . . O X O O . . . O X . . . . O O X . |
$$ | . X X O O X . . . O . . O . O X X . . |
$$ | . X O . . . . . . . . . . O X . X . . |
$$ | . . . . . . . . . . . . . . . X . . . |
$$ -----------------------------------------[/go]
Now B has a tesuji in centre:
- Click Here To Show Diagram Code
[go]$$Bm15
$$ -----------------------------------------
$$ | . . . . . . . . . . . . . . . . O . . |
$$ | . . . O . . . . . . . . . . O O X X . |
$$ | . . X O O . O . . O . . . O X X . . . |
$$ | . X . X . . . . . , . . O O . X . . . |
$$ | . . . X . . . . . . O O X O . . . . . |
$$ | . X . . X . . . O O X X . X X . X . . |
$$ | . . O . . . . X X . . . X . . O X . . |
$$ | . . . . X . . . . . X O O X . O . . . |
$$ | . . . O O . . O X O O X X X . . . . . |
$$ | . . O , . O O X X , . X . . . X X . . |
$$ | . . . . . X X O X . X . O . . O . . . |
$$ | . . . . O . O O X O O . . O . O X . . |
$$ | . X O O . . . X O X O O . . . X X . . |
$$ | X . X O X . 3 2 O X X X O O . . X . . |
$$ | . X X X O . . . 1 . X O . . O O X . . |
$$ | . . O X O O . . . O X . . . . O O X . |
$$ | . X X O O X . . . O . . O . O X X . . |
$$ | . X O . . . . . . . . . . O X . X . . |
$$ | . . . . . . . . . . . . . . . X . . . |
$$ -----------------------------------------[/go]
Now W has a choice. Suppose W captures:
- Click Here To Show Diagram Code
[go]$$Wm18
$$ -----------------------------------------
$$ | . . . . . . . . . . . . . . . . O . . |
$$ | . . . O . . . . . . . . . . O O X X . |
$$ | . . X O O . O . . O . . . O X X . . . |
$$ | . X . X . . . . . , . . O O . X . . . |
$$ | . . . X . . . . . . O O X O . . . . . |
$$ | . X . . X . . . O O X X . X X . X . . |
$$ | . . O . . . . X X . . . X . . O X . . |
$$ | . . . . X . . . . . X O O X . O . . . |
$$ | . . . O O . . O X O O X X X . . . . . |
$$ | . . O , . O O X X , . X . . . X X . . |
$$ | . . . . . X X O X . X . O . . O . . . |
$$ | . . . . O . O O X O O . . O . O X . . |
$$ | . X O O 5 . 1 3 O X O O . . . X X . . |
$$ | X . X O X 4 X O O X X X O O . . X . . |
$$ | . X X X O . . 2 X . X O . . O O X . . |
$$ | . . O X O O 6 . . O X . . . . O O X . |
$$ | . X X O O X 7 . . O . . O . O X X . . |
$$ | . X O . . . 8 . . . . . . O X . X . . |
$$ | . . . . . . . . . . . . . . . X . . . |
$$ -----------------------------------------[/go]
W may play 24 at 25. It's unclear to me what happens in this case, but B seems to get a plausible looking semeai. (I haven't included any diagrams for this line.)
Again W has a choice. Caturing the stone looks ropey, so W may well extend:
- Click Here To Show Diagram Code
[go]$$Wm26
$$ -----------------------------------------
$$ | . . . . . . . . . . . . . . . . O . . |
$$ | . . . O . . . . . . . . . . O O X X . |
$$ | . . X O O . O . . O . . . O X X . . . |
$$ | . X . X . . . . . , . . O O . X . . . |
$$ | . . . X . . . . . . O O X O . . . . . |
$$ | . X . . X . . . O O X X . X X . X . . |
$$ | . . O . . . . X X . . . X . . O X . . |
$$ | . . . . X . . . . . X O O X . O . . . |
$$ | . . . O O . . O X O O X X X . . . . . |
$$ | . . O , . O O X X , . X . . . X X . . |
$$ | . . . . a X X O X . X . O . . O . . . |
$$ | . . . . O . O O X O O . . O . O X . . |
$$ | . X O O O . O O O X O O b . . X X . . |
$$ | X . X O X X X O O X X X O O . . X . . |
$$ | . X X X O . . X X . X O . . O O X . . |
$$ | . . O X O O X . . O X . . . . O O X . |
$$ | . X X O O X O 1 . O . . O . O X X . . |
$$ | . X O . 3 2 X . . . . . . O X . X . . |
$$ | . . . 5 4 . 6 . . . . . . . . X . . . |
$$ -----------------------------------------[/go]
B gets a ko. I think B has some loacl threats (e.g. playing at a threatens the top left white group which can be cut off if W ignores the threat. The move at b is also a threat) So it's unclear B ha lost.
Going back, W may not caputre in anwer to B's tesuji:
- Click Here To Show Diagram Code
[go]$$Wm18
$$ -----------------------------------------
$$ | . . . . . . . . . . . . . . . . O . . |
$$ | . . . O . . . . . . . . . . O O X X . |
$$ | . . X O O . O . . O . . . O X X . . . |
$$ | . X . X . . . . . , . . O O . X . . . |
$$ | . . . X . . . . . . O O X O . . . . . |
$$ | . X . . X . . . O O X X . X X . X . . |
$$ | . . O . . . . X X . . . X . . O X . . |
$$ | . . . . X . . . . . X O O X . O . . . |
$$ | . . . O O . . O X O O X X X . . . . . |
$$ | . . O , . O O X X , . X . . . X X . . |
$$ | . . . . . X X O X . X . O . . O . . . |
$$ | . . . . O 2 O O X O O . . O . O X . . |
$$ | . X O O . 4 3 5 O X O O . . . X X . . |
$$ | X . X O X . X O O X X X O O . . X . . |
$$ | . X X X O . 6 1 X . X O . . O O X . . |
$$ | . . O X O O 8 7 . O X . . . . O O X . |
$$ | . X X O O X . . . O . . O . O X X . . |
$$ | . X O . . . . . . . . . . O X . X . . |
$$ | . . . . . . . . . . . . . . . X . . . |
$$ -----------------------------------------[/go]
B plays some ataris and pushes, and W seems to be in trouble.
There is an English Go proverb: Resigning never won a game of Go.