By throwing the board, I think. That is a NICE tesuji.hiyayang wrote:@ethanb:
How does white respond to this black move:ethanb wrote:$$Bc
$$ ---------------------------------------
$$ | . . . , . . . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . X . . . . . . . . . . . . . . . |
$$ | . . . . . X . . . . . . . . . . . . . |
$$ | . X X X . . . X . . . . . . . . . . . |
$$ | 1 O X O . O . . . . . . . . . . . . . |
$$ | . . O O . O X . . , . . . . . , . . . |
$$ | . . . O X X . X . . . . . . . . . . . |
$$ | . 2 . O X . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------Looks like this white lives, but black has lots of sente endgame. I'd be ok in most real games with this if I couldn't find the kill.
- Click Here To Show Diagram Code
[go]$$Bc
$$ ---------------------------------------
$$ | . . . , . . . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . X . . . . . . . . . . . . . . . |
$$ | . . . . . X . . . . . . . . . . . . . |
$$ | . X X X . . . X . . . . . . . . . . . |
$$ | 1 O X O . O . . . . . . . . . . . . . |
$$ | . . O O . O X . . , . . . . . , . . . |
$$ | . . . O X X . X . . . . . . . . . . . |
$$ | . 2 . O X . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]
$$Bc
$$ ---------------------------------------
$$ | . . . , . . . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . X . . . . . . . . . . . . . . . |
$$ | . . . . . X . . . . . . . . . . . . . |
$$ | . X X X . . . X . . . . . . . . . . . |
$$ | 1 O X O . O . . . . . . . . . . . . . |
$$ | . . O O . O X . . , . . . . . , . . . |
$$ | . . . O X X . X . . . . . . . . . . . |
$$ | 3 2 . O X . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------
- Click Here To Show Diagram Code
[go]$$Bc
$$ ---------------------------------------
$$ | . . . , . . . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . X . . . . . . . . . . . . . . . |
$$ | . . . . . X . . . . . . . . . . . . . |
$$ | . X X X . . . X . . . . . . . . . . . |
$$ | 1 O X O . O . . . . . . . . . . . . . |
$$ | . . O O . O X . . , . . . . . , . . . |
$$ | . . . O X X . X . . . . . . . . . . . |
$$ | 3 2 . O X . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]
A "Pro-Level" Tsumego
-
ethanb
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Re: A "Pro-Level" Tsumego
By throwing the board, I think. That is a NICE tesuji.hiyayang wrote:@ethanb:
How does white respond to this black move:ethanb wrote: Looks like this white lives, but black has lots of sente endgame. I'd be ok in most real games with this if I couldn't find the kill.
-
hiyayang
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Re: A "Pro-Level" Tsumego
And that would make it an interesting tsumego too.ethanb wrote:By throwing the board, I think. That is a NICE tesuji.
For those who are wondering about the status of the white corner after
, here is a diagram to show it is dead:It would not work if black switched the order of
and 
above, like this:White group has enough outside liberties to kill the black inside, even though the latter has an eye. Note that black
at 
doesn't connect. (If black plays 
instead of , white plays and the result would be the same as the diagram below.)Other black moves like the
below would also allow white to live:When white corner lacks outside liberties (e.g., the 'a' spots are taken by black),
below is another way to kill white corner, but it doesn't work in this case (because doesn't put itself in atari):Re: A "Pro-Level" Tsumego
hiyayang,
Doesn't White have a better response to your Black A5 attack?
I would answer this question myself, but I still miss bulky fives.
Doesn't White have a better response to your Black A5 attack?
I would answer this question myself, but I still miss bulky fives.
-
hiyayang
- Dies with sente
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Re: A "Pro-Level" Tsumego
Correct. White has better responses than B2. I was just expanding on ethanb's post. I think white B4 would be OK too.gonut wrote:hiyayang,
Doesn't White have a better response to your Black A5 attack?