Life In 19x19
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This 'n' that
http://lifein19x19.com/viewtopic.php?f=12&t=12327
Page 24 of 53

Author:  Bill Spight [ Sun Nov 19, 2017 10:10 am ]
Post subject:  Re: This 'n' that

This position is perhaps instructive.

Click Here To Show Diagram Code
[go]$$ Top side miai
$$ -------------------
$$ | O . . 2 X 3 4 . O |
$$ | O O O O X O O O O |
$$ | . . . . X . . . . |
$$ | . . . . . . . . . |
$$ | . . . O . . . . . |
$$ | . . . O X X X . . |
$$ | . . . O 5 . X . . |
$$ | . . . O X X X X X |
$$ | . . . O 1 . . . X |
$$ -------------------[/go]


Since the temperature is less than one, :w2: and :b3: are miai. Then, as it turns out, :w4: and :b5: are also miai. :)

Click Here To Show Diagram Code
[go]$$W White first
$$ -------------------
$$ | O . 6 4 X 3 . . O |
$$ | O O O O X O O O O |
$$ | . . . . X . . . . |
$$ | . . . . . . . . . |
$$ | . . . O . . . . . |
$$ | . . . O X X X . . |
$$ | . . . O 5 . X . . |
$$ | . . . O X X X X X |
$$ | . . . O 1 2 . . X |
$$ -------------------[/go]

Author:  Bill Spight [ Mon Dec 04, 2017 10:22 am ]
Post subject:  Re: This 'n' that

New problem. :)

Click Here To Show Diagram Code
[go]$$B Black to play
$$ ---------------------
$$ . X . . . . . . O X .
$$ . X O O . . O O O X .
$$ . X O X O O O . X . .
$$ . X X X X X X X . X .
$$ . . . . . . . . . . .[/go]


Enjoy! :D

Author:  EdLee [ Mon Dec 04, 2017 11:36 am ]
Post subject: 

Hi Bill :)
Hmm...
Click Here To Show Diagram Code
[go]$$B
$$ ---------------------
$$ . X . . . 1 . . O X .
$$ . X O O . . O O O X .
$$ . X O X O O O . X . .
$$ . X X X X X X X . X .
$$ . . . . . . . . . . .[/go]
Click Here To Show Diagram Code
[go]$$B
$$ ---------------------
$$ . X 3 5 6 1 4 . O X .
$$ . X O O 2 . O O O X .
$$ . X O X O O O . X . .
$$ . X X X X X X X . X .
$$ . . . . . . . . . . .[/go]
Maybe this is better because of 1 ko threat ? :study:
Click Here To Show Diagram Code
[go]$$B
$$ ---------------------
$$ . X . 1 . . . . O X .
$$ . X O O . . O O O X .
$$ . X O X O O O . X . .
$$ . X X X X X X X . X .
$$ . . . . . . . . . . .[/go]
Click Here To Show Diagram Code
[go]$$B
$$ ---------------------
$$ . X 3 1 4 . . . O X .
$$ . X O O 2 . O O O X .
$$ . X O X O O O . X . .
$$ . X X X X X X X . X .
$$ . . . . . . . . . . .[/go]

Author:  Bill Spight [ Mon Dec 04, 2017 12:09 pm ]
Post subject:  Re: This 'n' that

Hi, Ed. :)

Click Here To Show Diagram Code
[go]$$B
$$ ---------------------
$$ . X 4 . 5 1 3 . O X .
$$ . X O O 2 . O O O X .
$$ . X O X O O O . X . .
$$ . X X X X X X X . X .
$$ . . . . . . . . . . .[/go]


:b3: is normally better, even though it is gote.

Click Here To Show Diagram Code
[go]$$B
$$ ---------------------
$$ . X . . 2 1 . . O X .
$$ . X O O . . O O O X .
$$ . X O X O O O . X . .
$$ . X X X X X X X . X .
$$ . . . . . . . . . . .[/go]


So :w2: is normally better. :)

Keep trying. :)

Author:  EdLee [ Mon Dec 04, 2017 12:43 pm ]
Post subject: 

Thanks, Bill. :)
Only so many usual suspects... :study:
Click Here To Show Diagram Code
[go]$$B
$$ ---------------------
$$ . X . . . . . . O X .
$$ . X O O 1 . O O O X .
$$ . X O X O O O . X . .
$$ . X X X X X X X . X .
$$ . . . . . . . . . . .[/go]
Click Here To Show Diagram Code
[go]$$B :b7: at :b1:
$$ ---------------------
$$ . X 5 3 2 . 6 . O X .
$$ . X O O 1 4 O O O X .
$$ . X O X O O O . X . .
$$ . X X X X X X X . X .
$$ . . . . . . . . . . .[/go]
Click Here To Show Diagram Code
[go]$$B
$$ ---------------------
$$ . X X X O . O . O X .
$$ . X 9 8 0 O O O O X .
$$ . X . X O O O . X . .
$$ . X X X X X X X . X .
$$ . . . . . . . . . . .[/go]

Click Here To Show Diagram Code
[go]$$B reverts to above
$$ ---------------------
$$ . X 5 3 4 . . . O X .
$$ . X O O 1 2 O O O X .
$$ . X O X O O O . X . .
$$ . X X X X X X X . X .
$$ . . . . . . . . . . .[/go]
B nets +2 points in sente... :study:

Click Here To Show Diagram Code
[go]$$B seems seki; reverts to #464.1
$$ ---------------------
$$ . X . . . 3 1 . O X .
$$ . X O O 2 . O O O X .
$$ . X O X O O O . X . .
$$ . X X X X X X X . X .
$$ . . . . . . . . . . .[/go]

Still the same move...?
Click Here To Show Diagram Code
[go]$$B
$$ ---------------------
$$ . X . . . . . . O X .
$$ . X O O 1 . O O O X .
$$ . X X X O O O . X . .
$$ . . . . X X X X . X .
$$ . . . . . . . . . . .[/go]

Author:  Bill Spight [ Mon Dec 04, 2017 5:32 pm ]
Post subject:  Re:

EdLee wrote:
Thanks, Bill. :) Only so many usual suspects... :study:
Click Here To Show Diagram Code
[go]$$B
$$ ---------------------
$$ . X . . . . . . O X .
$$ . X O O 1 . O O O X .
$$ . X O X O O O . X . .
$$ . X X X X X X X . X .
$$ . . . . . . . . . . .[/go]


This is correct. A 5 pt. sente. :D

Quote:
Click Here To Show Diagram Code
[go]$$B :b7: at :b1:
$$ ---------------------
$$ . X 5 3 2 . 6 . O X .
$$ . X O O 1 4 O O O X .
$$ . X O X O O O . X . .
$$ . X X X X X X X . X .
$$ . . . . . . . . . . .[/go]


:b3: at 5 is slightly more accurate.

Forcing :w6: is neat, eh? ;)

Quote:
Click Here To Show Diagram Code
[go]$$B seems seki; reverts to #464.1
$$ ---------------------
$$ . X . . . 3 1 . O X .
$$ . X O O 2 . O O O X .
$$ . X O X O O O . X . .
$$ . X X X X X X X . X .
$$ . . . . . . . . . . .[/go]


I rather like :b1:. :D I overlooked it, but it is still not quite good enough.

Click Here To Show Diagram Code
[go]$$B Black komaster (given Black 1)
$$ ---------------------
$$ . X 4 . 3 . 1 . O X .
$$ . X O O 2 . O O O X .
$$ . X O X O O O . X . .
$$ . X X X X X X X . X .
$$ . . . . . . . . . . .[/go]


Click Here To Show Diagram Code
[go]$$B White komaster (given Black 1)
$$ ---------------------
$$ . X 3 . . 4 1 . O X .
$$ . X O O 2 . O O O X .
$$ . X O X O O O . X . .
$$ . X X X X X X X . X .
$$ . . . . . . . . . . .[/go]



Quote:
Still the same move...?
Click Here To Show Diagram Code
[go]$$B
$$ ---------------------
$$ . X . . . . a . O X .
$$ . X W W 1 . O O O X .
$$ . X X X O O O . X . .
$$ . . . . X X X X . X .
$$ . . . . . . . . . . .[/go]


With only two stones at stake ( :wc: ) I think that it depends on the ko threat situation. As a rule, when White is komaster, Black avoids ko and plays :b1:, otherwise Black plays "a".

Author:  Bill Spight [ Thu Dec 28, 2017 12:32 pm ]
Post subject:  Re: This 'n' that

lightvector has done some interesting research on semeai, and has posted his results in this thread: viewtopic.php?f=15&t=15338

I have found some interesting play in one of his semeai, and I liked it so much that I decided to post it here. :)



It is not easy to be komaster of a three move approach ko. ;)

Author:  Bill Spight [ Sun Dec 31, 2017 12:35 pm ]
Post subject:  Re: This 'n' that

I have an article in the current issue of Myosu http://www.mjubadukstudies.com/wp-conte ... -final.pdf

:)

Author:  EdLee [ Sun Dec 31, 2017 2:09 pm ]
Post subject: 

Hi Bill, Congrats. p 20. :)

Author:  Bill Spight [ Wed Feb 14, 2018 11:49 am ]
Post subject:  Re: This 'n' that

On this Valentine's Day/Ash Wednesday I am writing this note in memory of my wife, Winona Adkins, who died last month. She was ill, but her death was sudden and unexpected. We both thought that she would see the spring.

Winona was very intelligent, witty, and charming. Neither of us were extraverts, but she developed an uncanny charm in midlife. In recent years she and I, following her lead, together brought joy to many people that we met. She was truly a blessing.

Author:  tj86430 [ Wed Feb 14, 2018 1:20 pm ]
Post subject:  Re: This 'n' that

I can only offer my sincerest condolences.

Author:  daal [ Wed Feb 14, 2018 2:01 pm ]
Post subject:  Re: This 'n' that

Sorry to hear that, Bill. I'm sure many of our hearts go out to you this valentines day.

Author:  Kirby [ Wed Feb 14, 2018 2:42 pm ]
Post subject:  Re: This 'n' that

I am sorry for your loss. You must be heartbroken. From my experience, nothing I say can help the situation, but nonetheless, I'm so sorry to hear about this.

Author:  PeterHB [ Wed Feb 14, 2018 4:40 pm ]
Post subject:  Re: This 'n' that

Sorry for your loss. Feel strengthened by the positive memories of the way she added to your life.

Author:  EdLee [ Wed Feb 14, 2018 6:31 pm ]
Post subject: 

So sorry, Bill.

Author:  Calvin Clark [ Wed Feb 14, 2018 7:56 pm ]
Post subject:  Re: This 'n' that

My condolences to you and your family.

Author:  Uberdude [ Thu Feb 15, 2018 5:19 am ]
Post subject:  Re: This 'n' that

Terribly sorry to hear this Bill.

Author:  ez4u [ Thu Feb 15, 2018 10:17 pm ]
Post subject:  Re: This 'n' that

My condolences as well for you and your family.

Author:  paK0 [ Fri Feb 16, 2018 12:02 pm ]
Post subject:  Re: This 'n' that

Sorry to hear that Bill

Author:  Elom [ Sat Feb 17, 2018 6:43 am ]
Post subject:  Re: This 'n' that

Very sorry to hear. My condolences.

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