Smallest Groups With Two Eyes

Bonobo · #1

I thought it might be useful to have these here …

Image (warning: it’s HUGE!):

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

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

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Bonobo · #2

(made a “better and bigger” image, added all due credits)

Sneegurd · #3

Such an overview is very useful for a beginner like me, thx.

EdLee · #4

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.

tchan001 · #5

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

Bonobo · #6

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

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>

LifeIn9x9 · #7

It might be interesting to show minimal seki "shapes" as well.

Bill Spight · #8

Note that different groups have different numbers of stones.

Bonobo · #9

Bill Spight wrote:

Note that different groups have different numbers of stones.

6 … 8 … 10

Smallest Groups With Two Eyes

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