Life In 19x19 :: Redstone tsumego problem 1

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Redstone tsumego problem 1 http://www.lifein19x19.com/viewtopic.php?f=15&t=5585	Page 1 of 1

Author:	Bill Spight [ Fri Mar 02, 2012 10:05 am ]
Post subject:	Redstone tsumego problem 1
Click Here To Show Diagram Code `[go]$$B Black to play $$ ------------------ $$ \| . O . O . . . . . $$ \| . . . O X . X . . $$ \| O O O X X . . . . $$ \| . X X , . . . . . $$ \| . . . X . . . . . $$ \| . X . . . . . . . $$ \| . . . . . . . . . $$ \| . . . . . . . . .[/go]` Enjoy! All captures are made with red stones, which are immortal. A player may capture a stone or stones of either color, or both, with one play.

Author:	Dusk Eagle [ Fri Mar 02, 2012 11:13 am ]
Post subject:	Re: Redstone tsumego problem 1
Click Here To Show Diagram Code `[go]$$B $$ ------------------ $$ \| . O . O . . . . . $$ \| 1 2 3 O X . X . . $$ \| O O O X X . . . . $$ \| . X X , . . . . . $$ \| . . . X . . . . . $$ \| . X . . . . . . . $$ \| . . . . . . . . . $$ \| . . . . . . . . .[/go]` Click Here To Show Diagram Code `[go]$$B $$ ------------------ $$ \| 2 O 4 O 5 . . . . $$ \| 1 . 3 O X . X . . $$ \| O O O X X . . . . $$ \| . X X , . . . . . $$ \| . . . X . . . . . $$ \| . X . . . . . . . $$ \| . . . . . . . . . $$ \| . . . . . . . . .[/go]` Click Here To Show Diagram Code `[go]$$B If white 'a', then black . Black will\nform a dead shape using red stones.\nIf white tenukies, black fills the outside. $$ ------------------ $$ \| a O . O . . . . . $$ \| 1 3 2 O X . X . . $$ \| O O O X X . . . . $$ \| . X X , . . . . . $$ \| . . . X . . . . . $$ \| . X . . . . . . . $$ \| . . . . . . . . . $$ \| . . . . . . . . .[/go]`

Author: Bill Spight [ Fri Mar 02, 2012 11:48 am ]

Post subject: Re: Redstone tsumego problem 1

Edit: I missed this at first. The problem is well cooked.

Edit: Not much point in hiding things now. The problem is cooked, as is my goose.

Click Here To Show Diagram Code: [go]$$B $$ ------------------ $$ | 2 O 4 O 5 . . . . $$ | 1 6 3 O X . X . . $$ | O O O X X . . . . $$ | . X X , . . . . . $$ | . . . X . . . . . $$ | . X . . . . . . . $$ | . . . . . . . . . $$ | . . . . . . . . .[/go]

Click Here To Show Diagram Code: [go]$$B Life! $$ ------------------ $$ | O O O O X . . . . $$ | . + . O X . X . . $$ | O O O X X . . . . $$ | . X X , . . . . . $$ | . . . X . . . . . $$ | . X . . . . . . . $$ | . . . . . . . . . $$ | . . . . . . . . .[/go]

Edit: Wrong! As DuskEagle and topazg knew. The White stones are coptured, too. See later post.
----

But

Click Here To Show Diagram Code: [go]$$B $$ ------------------ $$ | 2 O 3 O . . . . . $$ | 1 . . O X . X . . $$ | O O O X X . . . . $$ | . X X , . . . . . $$ | . . . X . . . . . $$ | . X . . . . . . . $$ | . . . . . . . . . $$ | . . . . . . . . .[/go]

Click Here To Show Diagram Code: [go]$$B $$ ------------------ $$ | 2 O . O . . . . . $$ | 1 3 . O X . X . . $$ | O O O X X . . . . $$ | . X X , . . . . . $$ | . . . X . . . . . $$ | . X . . . . . . . $$ | . . . . . . . . . $$ | . . . . . . . . .[/go]

My solution:

Click Here To Show Diagram Code: [go]$$B $$ ------------------ $$ | . O 2 O . . . . . $$ | 3 . 1 O X . X . . $$ | O O O X X . . . . $$ | . X X , . . . . . $$ | . . . X . . . . . $$ | . X . . . . . . . $$ | . . . . . . . . . $$ | . . . . . . . . .[/go]

Click Here To Show Diagram Code: [go]$$B $$ ------------------ $$ | . O . O . . . . . $$ | 2 3 1 O X . X . . $$ | O O O X X . . . . $$ | . X X , . . . . . $$ | . . . X . . . . . $$ | . X . . . . . . . $$ | . . . . . . . . . $$ | . . . . . . . . .[/go]

I also missed this:

Click Here To Show Diagram Code: [go]$$B $$ ------------------ $$ | . O . O . . . . . $$ | 3 1 2 O X . X . . $$ | O O O X X . . . . $$ | . X X , . . . . . $$ | . . . X . . . . . $$ | . X . . . . . . . $$ | . . . . . . . . . $$ | . . . . . . . . .[/go]

Click Here To Show Diagram Code: [go]$$B $$ ------------------ $$ | . O . O . . . . . $$ | 2 1 3 O X . X . . $$ | O O O X X . . . . $$ | . X X , . . . . . $$ | . . . X . . . . . $$ | . X . . . . . . . $$ | . . . . . . . . . $$ | . . . . . . . . .[/go]

And this, which does not work:

Click Here To Show Diagram Code: [go]$$B $$ ------------------ $$ | . O 1 O 3 . . . . $$ | 2 . . O X . X . . $$ | O O O X X . . . . $$ | . X X , . . . . . $$ | . . . X . . . . . $$ | . X . . . . . . . $$ | . . . . . . . . . $$ | . . . . . . . . .[/go]

Yielding:

Click Here To Show Diagram Code: [go]$$B $$ ------------------ $$ | . O . . X . . . . $$ | O . + . X . X . . $$ | O O O X X . . . . $$ | . X X , . . . . . $$ | . . . X . . . . . $$ | . X . . . . . . . $$ | . . . . . . . . . $$ | . . . . . . . . .[/go]

Author:	cyclops [ Fri Mar 02, 2012 2:45 pm ]
Post subject:	Re: Redstone tsumego problem 1
Not sure this problem belongs to "Improve Your Game". I propose a new chapter "Deviant Go". Why? Because I didn't remember Redstone as a form of deviant go so I started to solve Bill's problem as a straight go problem and I got confused because I got slowly convinced that it is clearly alive.

Author: topazg [ Fri Mar 02, 2012 6:06 pm ]

Post subject: Re: Redstone tsumego problem 1

Bill, in Redstone there is mutual capture, so in your diagram here:

Click Here To Show Diagram Code: [go]$$B $$ ------------------ $$ | 2 O 4 O 5 . . . . $$ | 1 6 3 O X . X . . $$ | O O O X X . . . . $$ | . X X , . . . . . $$ | . . . X . . . . . $$ | . X . . . . . . . $$ | . . . . . . . . . $$ | . . . . . . . . .[/go]

actually leads to:

Click Here To Show Diagram Code: [go]$$B $$ ------------------ $$ | . . . . X . . . . $$ | . + . . X . X . . $$ | O O O X X . . . . $$ | . X X , . . . . . $$ | . . . X . . . . . $$ | . X . . . . . . . $$ | . . . . . . . . . $$ | . . . . . . . . .[/go]

It's a really funny game on L+D!

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