Smallest Groups With Two Eyes

If you're new to the game and have questions, post them here.
Post Reply
User avatar
Bonobo
Oza
Posts: 2223
Joined: Fri Dec 23, 2011 6:39 pm
Rank: OGS 9k
GD Posts: 0
OGS: trohde
Universal go server handle: trohde
Location: Germany
Has thanked: 8262 times
Been thanked: 924 times
Contact:

Smallest Groups With Two Eyes

Post by Bonobo »

I thought it might be useful to have these here …

Image (warning: it’s HUGE!):
Smallest-Groups-With-Two-Eyes.png
Smallest-Groups-With-Two-Eyes.png (1.16 MiB) Viewed 11865 times


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


From http://senseis.xmp.net/?SmallestGroupWithTwoEyes.

Image and ASCII code for the diagram created using KOCMOHABT’s Web Go Board browser plugin

If you have the plugin you can just click the “download SGF” link to open it in a new tab using this plugin.

“The only difference between me and a madman is that I’m not mad.” — Salvador Dali ★ Play a slooooow correspondence game with me on OGS? :)
User avatar
Bonobo
Oza
Posts: 2223
Joined: Fri Dec 23, 2011 6:39 pm
Rank: OGS 9k
GD Posts: 0
OGS: trohde
Universal go server handle: trohde
Location: Germany
Has thanked: 8262 times
Been thanked: 924 times
Contact:

Re: Smallest Groups With Two Eyes

Post by Bonobo »

(made a “better and bigger” image, added all due credits)
“The only difference between me and a madman is that I’m not mad.” — Salvador Dali ★ Play a slooooow correspondence game with me on OGS? :)
Sneegurd
Lives with ko
Posts: 129
Joined: Fri Mar 23, 2012 8:57 am
GD Posts: 0
Has thanked: 20 times
Been thanked: 17 times

Re: Smallest Groups With Two Eyes

Post by Sneegurd »

Such an overview is very useful for a beginner like me, thx.
User avatar
EdLee
Honinbo
Posts: 8859
Joined: Sat Apr 24, 2010 6:49 pm
GD Posts: 312
Location: Santa Barbara, CA
Has thanked: 349 times
Been thanked: 2070 times

Post by EdLee »

Sneegurd wrote:Such an overview is very useful for a beginner like me, thx.
Hi Tom,

Probably just a lucky coincidence and not done on purpose:
seems to be a 'bonus' lesson/hidden message:
if you spend most or all your effort making all tiny groups,
your opponent will likely win. :)
User avatar
tchan001
Gosei
Posts: 1582
Joined: Wed Apr 21, 2010 6:44 pm
GD Posts: 1292
Location: Hong Kong
Has thanked: 54 times
Been thanked: 534 times
Contact:

Re: Smallest Groups With Two Eyes

Post by tchan001 »

Actually I was the one who made that years ago and first posted on GoDiscussions forum. Previous to my edition SL had a version that had most of the shapes but not all :)
http://tchan001.wordpress.com
A blog on Asian go books, go sightings, and interesting tidbits
Go is such a beautiful game.
User avatar
Bonobo
Oza
Posts: 2223
Joined: Fri Dec 23, 2011 6:39 pm
Rank: OGS 9k
GD Posts: 0
OGS: trohde
Universal go server handle: trohde
Location: Germany
Has thanked: 8262 times
Been thanked: 924 times
Contact:

Re: Smallest Groups With Two Eyes

Post by Bonobo »

EdLee wrote:Probably just a lucky coincidence and not done on purpose:
seems to be a 'bonus' lesson/hidden message:
if you spend most or all your effort making all tiny groups,
your opponent will likely win. :)
Heh, yes :-D I think this is NOT meant to be a suggestion for the “architecture” of one’s game but rather as a typology of minimal survival.

While sometimes, in a tight game situation, a player may utter a sigh of relief when they manage to finish one of these shapes just in time, there perhaps are … “genes” (or vitamins? Proteins? Or are they more like fertilizer? Or perhaps the seeds we sow?) for these “minimal survival”, i.e. shapes we often play:

• Nobi (Stretch)
• Kosumi (Diagonal Move)
• Ikken Tobi (One Space Jump)
• Nikken Tobi (Two Space Jump)
• Keima (Knight’s Move)
• Ogeima (Large Knight’s Move), etc.,

and then the more complex shapes resulting from them, like …

• Table Shape, etc.

Just throw a few of these onto the board, and we have a puddle of Primordial Soup in which Life may spring into existence :-D

tchan001 wrote:Actually I was the one who made that years ago and first posted on GoDiscussions forum. Previous to my edition SL had a version that had most of the shapes but not all :)
Wow, very cool, thank you, tchan001 _/\_ (if I had known, I’d have credited you too in the image before sharing it wide and far …)


<edit>

Another thought just comes to my mind … I mentioned the “primordial soup”, and now I have an image on my “inner screen” … like:

  • some pairs or groups of stones are “solid” (solidly connected, e.g. Nobi), not dividable,
  • others are “liquid” or perhaps “fluid” in that they can be definitely connected if one plays the right move (like Kosumi),
  • while the last category could be called “gaseous”, in that they can definitely be divided (Keima, Ogeima, given appropriate circumstances)

Sadly I know too little about Chemistry and Physics but maybe some interesting analogies could be found there? (Or am I just having a manic episode again? :lol: )

</edit>



<edit>
sry, found myself in an editing muddle
</edit>
“The only difference between me and a madman is that I’m not mad.” — Salvador Dali ★ Play a slooooow correspondence game with me on OGS? :)
LifeIn9x9
Dies in gote
Posts: 47
Joined: Fri Mar 11, 2016 1:24 am
Rank: JP 1d
GD Posts: 0
Has thanked: 7 times
Been thanked: 5 times

Re: Smallest Groups With Two Eyes

Post by LifeIn9x9 »

It might be interesting to show minimal seki "shapes" as well.
Bill Spight
Honinbo
Posts: 10905
Joined: Wed Apr 21, 2010 1:24 pm
Has thanked: 3651 times
Been thanked: 3373 times

Re: Smallest Groups With Two Eyes

Post by Bill Spight »

Note that different groups have different numbers of stones. :)
The Adkins Principle:
At some point, doesn't thinking have to go on?
— Winona Adkins

Visualize whirled peas.

Everything with love. Stay safe.
User avatar
Bonobo
Oza
Posts: 2223
Joined: Fri Dec 23, 2011 6:39 pm
Rank: OGS 9k
GD Posts: 0
OGS: trohde
Universal go server handle: trohde
Location: Germany
Has thanked: 8262 times
Been thanked: 924 times
Contact:

Re: Smallest Groups With Two Eyes

Post by Bonobo »

Bill Spight wrote:Note that different groups have different numbers of stones. :)

6 … 8 … 10
“The only difference between me and a madman is that I’m not mad.” — Salvador Dali ★ Play a slooooow correspondence game with me on OGS? :)
Post Reply