A tesuji problem from a professional game I just processed. Black ignored the ko threat . So he must have a plan for his central group. Note the group is separated because the marked stones cannot be saved. This problem requires some reading but is not too difficult.
$$B
$$ +---------------------------------------+
$$ | . . . . . . . . . X . O . O . . . . . |
$$ | . . . . . . . . X . X X O O O . . . . |
$$ | . . X X . . . O X . X X X O X . O . . |
$$ | . . O O . . . . X X O X O X . X O . . |
$$ | . . . . . . . X . . O O O . . . X . . |
$$ | . . . . . . . . . X O X X X X X O . . |
$$ | . . . . . . . . . O X O O O . X O X . |
$$ | . . . . . . . . X X X . . . . O X . X |
$$ | . O O X . . . . X O O . O O . O X X . |
$$ | . X X X . . . . . X O . O X X X O O . |
$$ | . O X 3 X O . . . . . . X . . 2 X O . |
$$ | . O O 1 O . . . . . . . X O X 4 X O . |
$$ | . . X O . . . . . . . O O X X X O . . |
$$ | . . . . . . . . . O O O X O X . O . . |
$$ | . . . . . . . . O O X X X O X O . . . |
$$ | . . . O . O X X O X . . . O . # O . . |
$$ | . . . . . X O O X . X X . O . # O . . |
$$ | . . . . O O O X . X . . X O # O O . . |
$$ | . . . . . O X X . O X . X . . . . . . |
$$ +---------------------------------------+
[go]$$B
$$ +---------------------------------------+
$$ | . . . . . . . . . X . O . O . . . . . |
$$ | . . . . . . . . X . X X O O O . . . . |
$$ | . . X X . . . O X . X X X O X . O . . |
$$ | . . O O . . . . X X O X O X . X O . . |
$$ | . . . . . . . X . . O O O . . . X . . |
$$ | . . . . . . . . . X O X X X X X O . . |
$$ | . . . . . . . . . O X O O O . X O X . |
$$ | . . . . . . . . X X X . . . . O X . X |
$$ | . O O X . . . . X O O . O O . O X X . |
$$ | . X X X . . . . . X O . O X X X O O . |
$$ | . O X 3 X O . . . . . . X . . 2 X O . |
$$ | . O O 1 O . . . . . . . X O X 4 X O . |
$$ | . . X O . . . . . . . O O X X X O . . |
$$ | . . . . . . . . . O O O X O X . O . . |
$$ | . . . . . . . . O O X X X O X O . . . |
$$ | . . . O . O X X O X . . . O . # O . . |
$$ | . . . . . X O O X . X X . O . # O . . |
$$ | . . . . O O O X . X . . X O # O O . . |
$$ | . . . . . O X X . O X . X . . . . . . |
$$ +---------------------------------------+[/go]
Hey! No peeking. Think about shortage of liberties.
Nice and easy.
$$B
$$ +---------------------------------------+
$$ | . . . . . . . . . X . O . O . . . . . |
$$ | . . . . . . . . X . X X O O O . . . . |
$$ | . . X X . . . O X . X X X O X . O . . |
$$ | . . O O . . . . X X O X O X . X O . . |
$$ | . . . . . . . X . . O O O . . . X . . |
$$ | . . . . . . . . . X O X X X X X O . . |
$$ | . . . . . . . . . O X O O O 4 X O X . |
$$ | . . . . . . . . X X X . . 3 2 O X . X |
$$ | . O O X . . . . X O O . O O 1 O X X . |
$$ | . X X X . . . . . X O . O X X X O O . |
$$ | . O X X X O . . . 5 6 9 X . . O . O . |
$$ | . O O X O . . . . . 7 8 X O X O . O . |
$$ | . . X O . . . . . . . O O X X X O . . |
$$ | . . . . . . . . . O O O X O X . O . . |
$$ | . . . . . . . . O O X X X O X O . . . |
$$ | . . . O . O X X O X . . . O . # O . . |
$$ | . . . . . X O O X . X X . O . # O . . |
$$ | . . . . O O O X . X . . X O # O O . . |
$$ | . . . . . O X X . O X . X . . . . . . |
$$ +---------------------------------------+
[go]$$B
$$ +---------------------------------------+
$$ | . . . . . . . . . X . O . O . . . . . |
$$ | . . . . . . . . X . X X O O O . . . . |
$$ | . . X X . . . O X . X X X O X . O . . |
$$ | . . O O . . . . X X O X O X . X O . . |
$$ | . . . . . . . X . . O O O . . . X . . |
$$ | . . . . . . . . . X O X X X X X O . . |
$$ | . . . . . . . . . O X O O O 4 X O X . |
$$ | . . . . . . . . X X X . . 3 2 O X . X |
$$ | . O O X . . . . X O O . O O 1 O X X . |
$$ | . X X X . . . . . X O . O X X X O O . |
$$ | . O X X X O . . . 5 6 9 X . . O . O . |
$$ | . O O X O . . . . . 7 8 X O X O . O . |
$$ | . . X O . . . . . . . O O X X X O . . |
$$ | . . . . . . . . . O O O X O X . O . . |
$$ | . . . . . . . . O O X X X O X O . . . |
$$ | . . . O . O X X O X . . . O . # O . . |
$$ | . . . . . X O O X . X X . O . # O . . |
$$ | . . . . O O O X . X . . X O # O O . . |
$$ | . . . . . O X X . O X . X . . . . . . |
$$ +---------------------------------------+[/go]
From here, it's hard for white to stop black connecting. Even if white put's 7 in atari, black can play over 9 and it's over.
On Go proverbs:
"A fine Gotation is a diamond in the hand of a dan of wit and a pebble in the hand of a kyu" —Joseph Raux misquoted.
What if I do this now? You can only follow up with 'a', saving some but not all stones.
$$W
$$ +---------------------------------------+
$$ | . . . . . . . . . X . O . O . . . . . |
$$ | . . . . . . . . X . X X O O O . . . . |
$$ | . . X X . . . O X . X X X O X . O . . |
$$ | . . O O . . . . X X O X O X . X O . . |
$$ | . . . . . . . X . . O O O . . . X . . |
$$ | . . . . . . . . . X O X X X X X O . . |
$$ | . . . . . . . . . O X O O O O X O X . |
$$ | . . . . . . . . X X X . . X O O X . X |
$$ | . O O X . . . . X O O a O O X O X X . |
$$ | . X X X . . . . . X O . O X X X O O . |
$$ | . O X X X O . . . X O X X . 1 O . O . |
$$ | . O O X O . . . . . X O X O X O . O . |
$$ | . . X O . . . . . . . O O X X X O . . |
$$ | . . . . . . . . . O O O X O X . O . . |
$$ | . . . . . . . . O O X X X O X O . . . |
$$ | . . . O . O X X O X . . . O . # O . . |
$$ | . . . . . X O O X . X X . O . # O . . |
$$ | . . . . O O O X . X . . X O # O O . . |
$$ | . . . . . O X X . O X . X . . . . . . |
$$ +---------------------------------------+
[go]$$W
$$ +---------------------------------------+
$$ | . . . . . . . . . X . O . O . . . . . |
$$ | . . . . . . . . X . X X O O O . . . . |
$$ | . . X X . . . O X . X X X O X . O . . |
$$ | . . O O . . . . X X O X O X . X O . . |
$$ | . . . . . . . X . . O O O . . . X . . |
$$ | . . . . . . . . . X O X X X X X O . . |
$$ | . . . . . . . . . O X O O O O X O X . |
$$ | . . . . . . . . X X X . . X O O X . X |
$$ | . O O X . . . . X O O a O O X O X X . |
$$ | . X X X . . . . . X O . O X X X O O . |
$$ | . O X X X O . . . X O X X . 1 O . O . |
$$ | . O O X O . . . . . X O X O X O . O . |
$$ | . . X O . . . . . . . O O X X X O . . |
$$ | . . . . . . . . . O O O X O X . O . . |
$$ | . . . . . . . . O O X X X O X O . . . |
$$ | . . . O . O X X O X . . . O . # O . . |
$$ | . . . . . X O O X . X X . O . # O . . |
$$ | . . . . O O O X . X . . X O # O O . . |
$$ | . . . . . O X X . O X . X . . . . . . |
$$ +---------------------------------------+[/go]
Hey! No peeking. Think about shortage of liberties.
Nice and easy.
$$B
$$ +---------------------------------------+
$$ | . . . . . . . . . X . O . O . . . . . |
$$ | . . . . . . . . X . X X O O O . . . . |
$$ | . . X X . . . O X . X X X O X . O . . |
$$ | . . O O . . . . X X O X O X . X O . . |
$$ | . . . . . . . X . . O O O . . . X . . |
$$ | . . . . . . . . . X O X X X X X O . . |
$$ | . . . . . . . . . O X O O O 4 X O X . |
$$ | . . . . . . . . X X X . . 3 2 O X . X |
$$ | . O O X . . . . X O O . O O 1 O X X . |
$$ | . X X X . . . . . X O . O X X X O O . |
$$ | . O X X X O . . . 5 6 9 X . . O . O . |
$$ | . O O X O . . . . . 7 8 X O X O . O . |
$$ | . . X O . . . . . . . O O X X X O . . |
$$ | . . . . . . . . . O O O X O X . O . . |
$$ | . . . . . . . . O O X X X O X O . . . |
$$ | . . . O . O X X O X . . . O . # O . . |
$$ | . . . . . X O O X . X X . O . # O . . |
$$ | . . . . O O O X . X . . X O # O O . . |
$$ | . . . . . O X X . O X . X . . . . . . |
$$ +---------------------------------------+
[go]$$B
$$ +---------------------------------------+
$$ | . . . . . . . . . X . O . O . . . . . |
$$ | . . . . . . . . X . X X O O O . . . . |
$$ | . . X X . . . O X . X X X O X . O . . |
$$ | . . O O . . . . X X O X O X . X O . . |
$$ | . . . . . . . X . . O O O . . . X . . |
$$ | . . . . . . . . . X O X X X X X O . . |
$$ | . . . . . . . . . O X O O O 4 X O X . |
$$ | . . . . . . . . X X X . . 3 2 O X . X |
$$ | . O O X . . . . X O O . O O 1 O X X . |
$$ | . X X X . . . . . X O . O X X X O O . |
$$ | . O X X X O . . . 5 6 9 X . . O . O . |
$$ | . O O X O . . . . . 7 8 X O X O . O . |
$$ | . . X O . . . . . . . O O X X X O . . |
$$ | . . . . . . . . . O O O X O X . O . . |
$$ | . . . . . . . . O O X X X O X O . . . |
$$ | . . . O . O X X O X . . . O . # O . . |
$$ | . . . . . X O O X . X X . O . # O . . |
$$ | . . . . O O O X . X . . X O # O O . . |
$$ | . . . . . O X X . O X . X . . . . . . |
$$ +---------------------------------------+[/go]
From here, it's hard for white to stop black connecting. Even if white put's 7 in atari, black can play over 9 and it's over.
Elom has the right idea. Only the execution seems suspect.
After 4 I think Black just continues with the blunt 5 and 7 to create the maximum reduction in liberties. If White tries to atari out, there is no answer to 9. As far as I can see, all alternatives produce a similar result.
$$Bc
$$ ---------------------------------------
$$ | . . . . . . . . . X . O . O . . . . . |
$$ | . . . . . . . . X . X X O O O . . . . |
$$ | . . X X . . . O X . X X X O X . O . . |
$$ | . . O O . . . . X X O X O X . X O . . |
$$ | . . . . . . . X . . O O O . . . X . . |
$$ | . . . . . . . . . X O X X X X X O . . |
$$ | . . . . . . . . . O X O O O 4 X O X . |
$$ | . . . . . . . . X X X 5 6 3 2 O X . X |
$$ | . O O X . . . . X O O . O O 1 O X X . |
$$ | . X X X . . . . . X O 9 O X X X O O . |
$$ | . O X X X O . . . 8 7 . X . . O . O . |
$$ | . O O X O . . . . . . . X O X O . O . |
$$ | . . X O . . . . . . . O O X X X O . . |
$$ | . . . . . . . . . O O O X O X . O . . |
$$ | . . . . . . . . O O X X X O X O . . . |
$$ | . . . O . O X X O X . . . O . X O . . |
$$ | . . . . . X O O X . X X . O . X O . . |
$$ | . . . . O O O X . X . . X O X O O . . |
$$ | . . . . . O X X . O X . X . . . . . . |
$$ ---------------------------------------
[go]$$Bc
$$ ---------------------------------------
$$ | . . . . . . . . . X . O . O . . . . . |
$$ | . . . . . . . . X . X X O O O . . . . |
$$ | . . X X . . . O X . X X X O X . O . . |
$$ | . . O O . . . . X X O X O X . X O . . |
$$ | . . . . . . . X . . O O O . . . X . . |
$$ | . . . . . . . . . X O X X X X X O . . |
$$ | . . . . . . . . . O X O O O 4 X O X . |
$$ | . . . . . . . . X X X 5 6 3 2 O X . X |
$$ | . O O X . . . . X O O . O O 1 O X X . |
$$ | . X X X . . . . . X O 9 O X X X O O . |
$$ | . O X X X O . . . 8 7 . X . . O . O . |
$$ | . O O X O . . . . . . . X O X O . O . |
$$ | . . X O . . . . . . . O O X X X O . . |
$$ | . . . . . . . . . O O O X O X . O . . |
$$ | . . . . . . . . O O X X X O X O . . . |
$$ | . . . O . O X X O X . . . O . X O . . |
$$ | . . . . . X O O X . X X . O . X O . . |
$$ | . . . . O O O X . X . . X O X O O . . |
$$ | . . . . . O X X . O X . X . . . . . . |
$$ ---------------------------------------[/go]
Dave Sigaty
"Short-lived are both the praiser and the praised, and rememberer and the remembered..."
- Marcus Aurelius; Meditations, VIII 21
Hey! No peeking. Think about shortage of liberties.
Nice and easy.
$$B
$$ +---------------------------------------+
$$ | . . . . . . . . . X . O . O . . . . . |
$$ | . . . . . . . . X . X X O O O . . . . |
$$ | . . X X . . . O X . X X X O X . O . . |
$$ | . . O O . . . . X X O X O X . X O . . |
$$ | . . . . . . . X . . O O O . . . X . . |
$$ | . . . . . . . . . X O X X X X X O . . |
$$ | . . . . . . . . . O X O O O 4 X O X . |
$$ | . . . . . . . . X X X . . 3 2 O X . X |
$$ | . O O X . . . . X O O . O O 1 O X X . |
$$ | . X X X . . . . . X O . O X X X O O . |
$$ | . O X X X O . . . 5 6 9 X . . O . O . |
$$ | . O O X O . . . . . 7 8 X O X O . O . |
$$ | . . X O . . . . . . . O O X X X O . . |
$$ | . . . . . . . . . O O O X O X . O . . |
$$ | . . . . . . . . O O X X X O X O . . . |
$$ | . . . O . O X X O X . . . O . # O . . |
$$ | . . . . . X O O X . X X . O . # O . . |
$$ | . . . . O O O X . X . . X O # O O . . |
$$ | . . . . . O X X . O X . X . . . . . . |
$$ +---------------------------------------+
[go]$$B
$$ +---------------------------------------+
$$ | . . . . . . . . . X . O . O . . . . . |
$$ | . . . . . . . . X . X X O O O . . . . |
$$ | . . X X . . . O X . X X X O X . O . . |
$$ | . . O O . . . . X X O X O X . X O . . |
$$ | . . . . . . . X . . O O O . . . X . . |
$$ | . . . . . . . . . X O X X X X X O . . |
$$ | . . . . . . . . . O X O O O 4 X O X . |
$$ | . . . . . . . . X X X . . 3 2 O X . X |
$$ | . O O X . . . . X O O . O O 1 O X X . |
$$ | . X X X . . . . . X O . O X X X O O . |
$$ | . O X X X O . . . 5 6 9 X . . O . O . |
$$ | . O O X O . . . . . 7 8 X O X O . O . |
$$ | . . X O . . . . . . . O O X X X O . . |
$$ | . . . . . . . . . O O O X O X . O . . |
$$ | . . . . . . . . O O X X X O X O . . . |
$$ | . . . O . O X X O X . . . O . # O . . |
$$ | . . . . . X O O X . X X . O . # O . . |
$$ | . . . . O O O X . X . . X O # O O . . |
$$ | . . . . . O X X . O X . X . . . . . . |
$$ +---------------------------------------+[/go]
From here, it's hard for white to stop black connecting. Even if white put's 7 in atari, black can play over 9 and it's over.
macelee wrote:To answer Elom:
What if I do this now? You can only follow up with 'a', saving some but not all stones.
$$W
$$ +---------------------------------------+
$$ | . . . . . . . . . X . O . O . . . . . |
$$ | . . . . . . . . X . X X O O O . . . . |
$$ | . . X X . . . O X . X X X O X . O . . |
$$ | . . O O . . . . X X O X O X . X O . . |
$$ | . . . . . . . X . . O O O . . . X . . |
$$ | . . . . . . . . . X O X X X X X O . . |
$$ | . . . . . . . . . O X O O O O X O X . |
$$ | . . . . . . . . X X X . . X O O X . X |
$$ | . O O X . . . . X O O a O O X O X X . |
$$ | . X X X . . . . . X O . O X X X O O . |
$$ | . O X X X O . . . X O X X . 1 O . O . |
$$ | . O O X O . . . . . X O X O X O . O . |
$$ | . . X O . . . . . . . O O X X X O . . |
$$ | . . . . . . . . . O O O X O X . O . . |
$$ | . . . . . . . . O O X X X O X O . . . |
$$ | . . . O . O X X O X . . . O . # O . . |
$$ | . . . . . X O O X . X X . O . # O . . |
$$ | . . . . O O O X . X . . X O # O O . . |
$$ | . . . . . O X X . O X . X . . . . . . |
$$ +---------------------------------------+
[go]$$W
$$ +---------------------------------------+
$$ | . . . . . . . . . X . O . O . . . . . |
$$ | . . . . . . . . X . X X O O O . . . . |
$$ | . . X X . . . O X . X X X O X . O . . |
$$ | . . O O . . . . X X O X O X . X O . . |
$$ | . . . . . . . X . . O O O . . . X . . |
$$ | . . . . . . . . . X O X X X X X O . . |
$$ | . . . . . . . . . O X O O O O X O X . |
$$ | . . . . . . . . X X X . . X O O X . X |
$$ | . O O X . . . . X O O a O O X O X X . |
$$ | . X X X . . . . . X O . O X X X O O . |
$$ | . O X X X O . . . X O X X . 1 O . O . |
$$ | . O O X O . . . . . X O X O X O . O . |
$$ | . . X O . . . . . . . O O X X X O . . |
$$ | . . . . . . . . . O O O X O X . O . . |
$$ | . . . . . . . . O O X X X O X O . . . |
$$ | . . . O . O X X O X . . . O . # O . . |
$$ | . . . . . X O O X . X X . O . # O . . |
$$ | . . . . O O O X . X . . X O # O O . . |
$$ | . . . . . O X X . O X . X . . . . . . |
$$ +---------------------------------------+[/go]
I can just imagine that happening in one of my games
$$B
$$ +---------------------------------------+
$$ | . . . . . . . . . X . O . O . . . . . |
$$ | . . . . . . . . X . X X O O O . . . . |
$$ | . . X X . . . O X . X X X O X . O . . |
$$ | . . O O . . . . X X O X O X . X O . . |
$$ | . . . . . . . X . . O O O . . . X . . |
$$ | . . . . . . . . . X O X X X X X O . . |
$$ | . . . . . . . . . O X O O O 4 X O X . |
$$ | . . . . . . . . X X X . . 3 2 O X . X |
$$ | . O O X . . . . X O O . O O 1 O X X . |
$$ | . X X X . . . . . X O 9 O X X X O O . |
$$ | . O X X X O . . . 8 5 6 X . . O . O . |
$$ | . O O X O . . . . . . 7 X O X O . O . |
$$ | . . X O . . . . . . . O O X X X O . . |
$$ | . . . . . . . . . O O O X O X . O . . |
$$ | . . . . . . . . O O X X X O X O . . . |
$$ | . . . O . O X X O X . . . O . # O . . |
$$ | . . . . . X O O X . X X . O . # O . . |
$$ | . . . . O O O X . X . . X O # O O . . |
$$ | . . . . . O X X . O X . X . . . . . . |
$$ +---------------------------------------+
[go]$$B
$$ +---------------------------------------+
$$ | . . . . . . . . . X . O . O . . . . . |
$$ | . . . . . . . . X . X X O O O . . . . |
$$ | . . X X . . . O X . X X X O X . O . . |
$$ | . . O O . . . . X X O X O X . X O . . |
$$ | . . . . . . . X . . O O O . . . X . . |
$$ | . . . . . . . . . X O X X X X X O . . |
$$ | . . . . . . . . . O X O O O 4 X O X . |
$$ | . . . . . . . . X X X . . 3 2 O X . X |
$$ | . O O X . . . . X O O . O O 1 O X X . |
$$ | . X X X . . . . . X O 9 O X X X O O . |
$$ | . O X X X O . . . 8 5 6 X . . O . O . |
$$ | . O O X O . . . . . . 7 X O X O . O . |
$$ | . . X O . . . . . . . O O X X X O . . |
$$ | . . . . . . . . . O O O X O X . O . . |
$$ | . . . . . . . . O O X X X O X O . . . |
$$ | . . . O . O X X O X . . . O . # O . . |
$$ | . . . . . X O O X . X X . O . # O . . |
$$ | . . . . O O O X . X . . X O # O O . . |
$$ | . . . . . O X X . O X . X . . . . . . |
$$ +---------------------------------------+[/go]
or--
$$B
$$ +---------------------------------------+
$$ | . . . . . . . . . X . O . O . . . . . |
$$ | . . . . . . . . X . X X O O O . . . . |
$$ | . . X X . . . O X . X X X O X . O . . |
$$ | . . O O . . . . X X O X O X . X O . . |
$$ | . . . . . . . X . . O O O . . . X . . |
$$ | . . . . . . . . . X O X X X X X O . . |
$$ | . . . . . . . . . O X O O O 4 X O X . |
$$ | . . . . . . . . X X X . . 3 2 O X . X |
$$ | . O O X . . . . X O O . O O 1 O X X . |
$$ | . X X X . . . . . X O 7 O X X X O O . |
$$ | . O X X X O . . . 6 5 . X . . O . O . |
$$ | . O O X O . . . . . . . X O X O . O . |
$$ | . . X O . . . . . . . O O X X X O . . |
$$ | . . . . . . . . . O O O X O X . O . . |
$$ | . . . . . . . . O O X X X O X O . . . |
$$ | . . . O . O X X O X . . . O . # O . . |
$$ | . . . . . X O O X . X X . O . # O . . |
$$ | . . . . O O O X . X . . X O # O O . . |
$$ | . . . . . O X X . O X . X . . . . . . |
$$ +---------------------------------------+
[go]$$B
$$ +---------------------------------------+
$$ | . . . . . . . . . X . O . O . . . . . |
$$ | . . . . . . . . X . X X O O O . . . . |
$$ | . . X X . . . O X . X X X O X . O . . |
$$ | . . O O . . . . X X O X O X . X O . . |
$$ | . . . . . . . X . . O O O . . . X . . |
$$ | . . . . . . . . . X O X X X X X O . . |
$$ | . . . . . . . . . O X O O O 4 X O X . |
$$ | . . . . . . . . X X X . . 3 2 O X . X |
$$ | . O O X . . . . X O O . O O 1 O X X . |
$$ | . X X X . . . . . X O 7 O X X X O O . |
$$ | . O X X X O . . . 6 5 . X . . O . O . |
$$ | . O O X O . . . . . . . X O X O . O . |
$$ | . . X O . . . . . . . O O X X X O . . |
$$ | . . . . . . . . . O O O X O X . O . . |
$$ | . . . . . . . . O O X X X O X O . . . |
$$ | . . . O . O X X O X . . . O . # O . . |
$$ | . . . . . X O O X . X X . O . # O . . |
$$ | . . . . O O O X . X . . X O # O O . . |
$$ | . . . . . O X X . O X . X . . . . . . |
$$ +---------------------------------------+[/go]
so--
$$B
$$ +---------------------------------------+
$$ | . . . . . . . . . X . O . O . . . . . |
$$ | . . . . . . . . X . X X O O O . . . . |
$$ | . . X X . . . O X . X X X O X . O . . |
$$ | . . O O . . . . X X O X O X . X O . . |
$$ | . . . . . . . X . . O O O . . . X . . |
$$ | . . . . . . . . . X O X X X X X O . . |
$$ | . . . . . . . . . O X O O O 4 X O X . |
$$ | . . . . . . . . X X X . . 3 2 O X . X |
$$ | . O O X . . . . X O O . O O 1 O X X . |
$$ | . X X X . . . . . X O . O X X X O O . |
$$ | . O X X X O . . . . 5 6 X . 8 O . O . |
$$ | . O O X O . . . . . . 7 X O X O . O . |
$$ | . . X O . . . . . . . O O X X X O . . |
$$ | . . . . . . . . . O O O X O X . O . . |
$$ | . . . . . . . . O O X X X O X O . . . |
$$ | . . . O . O X X O X . . . O . # O . . |
$$ | . . . . . X O O X . X X . O . # O . . |
$$ | . . . . O O O X . X . . X O # O O . . |
$$ | . . . . . O X X . O X . X . . . . . . |
$$ +---------------------------------------+
[go]$$B
$$ +---------------------------------------+
$$ | . . . . . . . . . X . O . O . . . . . |
$$ | . . . . . . . . X . X X O O O . . . . |
$$ | . . X X . . . O X . X X X O X . O . . |
$$ | . . O O . . . . X X O X O X . X O . . |
$$ | . . . . . . . X . . O O O . . . X . . |
$$ | . . . . . . . . . X O X X X X X O . . |
$$ | . . . . . . . . . O X O O O 4 X O X . |
$$ | . . . . . . . . X X X . . 3 2 O X . X |
$$ | . O O X . . . . X O O . O O 1 O X X . |
$$ | . X X X . . . . . X O . O X X X O O . |
$$ | . O X X X O . . . . 5 6 X . 8 O . O . |
$$ | . O O X O . . . . . . 7 X O X O . O . |
$$ | . . X O . . . . . . . O O X X X O . . |
$$ | . . . . . . . . . O O O X O X . O . . |
$$ | . . . . . . . . O O X X X O X O . . . |
$$ | . . . O . O X X O X . . . O . # O . . |
$$ | . . . . . X O O X . X X . O . # O . . |
$$ | . . . . O O O X . X . . X O # O O . . |
$$ | . . . . . O X X . O X . X . . . . . . |
$$ +---------------------------------------+[/go]
but--
$$B
$$ +---------------------------------------+
$$ | . . . . . . . . . X . O . O . . . . . |
$$ | . . . . . . . . X . X X O O O . . . . |
$$ | . . X X . . . O X . X X X O X . O . . |
$$ | . . O O . . . . X X O X O X . X O . . |
$$ | . . . . . . . X . . O O O . . . X . . |
$$ | . . . . . . . . . X O X X X X X O . . |
$$ | . . . . . . . . . O X O O O O X O X . |
$$ | . . . . . . . . X X X . . X O O X . X |
$$ | . O O X . . . . X O O . O O X O X X . |
$$ | . X X X . . . . . X O . O X X X O O . |
$$ | . O X X X O . . . . X O X 1 O O . O . |
$$ | . O O X O . . . . . . X X O X O . O . |
$$ | . . X O . . . . . . . O O X X X O . . |
$$ | . . . . . . . . . O O O X O X . O . . |
$$ | . . . . . . . . O O X X X O X O . . . |
$$ | . . . O . O X X O X . . . O . # O . . |
$$ | . . . . . X O O X . X X . O . # O . . |
$$ | . . . . O O O X . X . . X O # O O . . |
$$ | . . . . . O X X . O X . X . . . . . . |
$$ +---------------------------------------+
[go]$$B
$$ +---------------------------------------+
$$ | . . . . . . . . . X . O . O . . . . . |
$$ | . . . . . . . . X . X X O O O . . . . |
$$ | . . X X . . . O X . X X X O X . O . . |
$$ | . . O O . . . . X X O X O X . X O . . |
$$ | . . . . . . . X . . O O O . . . X . . |
$$ | . . . . . . . . . X O X X X X X O . . |
$$ | . . . . . . . . . O X O O O O X O X . |
$$ | . . . . . . . . X X X . . X O O X . X |
$$ | . O O X . . . . X O O . O O X O X X . |
$$ | . X X X . . . . . X O . O X X X O O . |
$$ | . O X X X O . . . . X O X 1 O O . O . |
$$ | . O O X O . . . . . . X X O X O . O . |
$$ | . . X O . . . . . . . O O X X X O . . |
$$ | . . . . . . . . . O O O X O X . O . . |
$$ | . . . . . . . . O O X X X O X O . . . |
$$ | . . . O . O X X O X . . . O . # O . . |
$$ | . . . . . X O O X . X X . O . # O . . |
$$ | . . . . O O O X . X . . X O # O O . . |
$$ | . . . . . O X X . O X . X . . . . . . |
$$ +---------------------------------------+[/go]
If this is correct (unlikely), it's a nice tesuji now I'll check the next post.
On Go proverbs:
"A fine Gotation is a diamond in the hand of a dan of wit and a pebble in the hand of a kyu" —Joseph Raux misquoted.
. So he must have a plan for his central group. Note the group is separated because the marked stones cannot be saved. This problem requires some reading but is not too difficult. 
