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Date: Sat, 19 Jun 93 17:05:04 -0400
From: smg6@po.CWRU.Edu (S. Max Golem)
To: smg6@thor.INS.CWRU.Edu
Subject: Discussion problem 2.
Reply-To: smg6@po.CWRU.Edu (S. Max Golem)



Hi --

Here's an interesting problem that Huayong Yang sent me a while
ago.  I'd like to know what you think of the position.


>Here is a question about a position that I ran into several times.  
>I don't know what the correct play is yet.  
> 
>This position is shown in the following diagram: 
> 
>   A B C D E F G H J K L M N O P Q R S T 
>19 . . . . . . . . . . . . . . . . . . . 19 
>18 . . O . . . . . . . . . . . . O . . . 18 
>17 . # # O . . . . . . O . . O . . # . . 17 
>16 . . . . O . . . . . . . . . . # . . . 16 
>15 . . # . . . . . . . . . . . . . . . . 15 
>14 . . . . O . . . . . . . . . . # . . . 14 
>13 . . . . . . . . . . . . . . . . . . . 13 
>12 . . # . . . . . . . . . . . . . O . . 12 
>11 . . . . . . . . . . . . . . . . . . . 11 
>10 . . . . . . . . . . . . . . . . # . . 10 
> 9 . . O . . . . . . . . . . . . . . . .  9 
> 8 . . . . . . . . . . . . . . . . . . .  8 
> 7 . . . . . . . . . . . . . . . . . . .  7 
> 6 . . O . . . . . . . . . . . . O O . .  6 
> 5 . . . . . . . . . . . . . . O . # . .  5 
> 4 . . . O . . . . . . . . . # . . # . .  4 
> 3 . . O . . # . . # . . . . . . # . . .  3 
> 2 . . . # . . . . . . . . . . . . . . .  2 
> 1 . . . . . . . . . . . . . . . . . . .  1 
>   A B C D E F G H J K L M N O P Q R S T 
> 
>Focus is on the right side where white R12 invades.  
>(It is the position on the upper-right that I ran into sometimes.) 
>My question is, 
>what's the correct play for black?  Of course, the answer may be 
>dependent on the stones nearby.  For example, consider the following 
>diagram: 
> 
>   A B C D E F G H J K L M N O P Q R S T 
>19 . . . . . . . . . . . . . . . . . . . 19 
>18 . . O . . . . . . . . . . . . O . . . 18 
>17 . # # O . . . . . . O . . O . . # . . 17 
>16 . . . . O . . . . . . . . . . # . . . 16 
>15 . . # . . . . . . . . . . . . . . . . 15 
>14 . . . . O . . . . . . . . . . # . . . 14 
>13 . . . . . . . . . . . . . . . . . . . 13 
>12 . . # . . . . . . . . . . . . . O . . 12 
>11 . . . . . . . . . . . . . . . . . . . 11 
>10 . . . . . . . . . . . . . . . . # . . 10
> 9 . . O . . . . . . . . . . . . . . . .  9 
> 8 . . . . . . . . . . . . . . . . . . .  8 
> 7 . . . . . . . . . . . . . . . . . . .  7 
> 6 . . O . . . . . . . . . . . . . . . .  6 
> 5 . . . . . . . . . . . . . . . . . . .  5 
> 4 . . . O . . . . . . . . . . . . . . .  4 
> 3 . . O . . # . . # . . . . . . # . . .  3 
> 2 . . . # . . . . . . . . . . . . . . .  2 
> 1 . . . . . . . . . . . . . . . . . . .  1 
>   A B C D E F G H J K L M N O P Q R S T 
> 
> 
>It is fine with me if you send the problem to other members of dojo for 
>discussion.  Actually I kind of like the discussion.  
> 
>Have a nice day.  
> 
>Huayong

Any ideas?