Donut board

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Numsgil
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Donut board

Post by Numsgil »

Click Here To Show Diagram Code
[go]$$c
$$ --------------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . . . |
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$$ | . . . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . - - - - - - - - - . . . . . . |
$$ | . . . . . . - - - - - - - - - . . . . . . |
$$ | . . . . . . - - - - - - - - - . . . . . . |
$$ | . . . . . . - - - - - - - - - . . . . . . |
$$ | . . . . . . - - - - - - - - - . . . . . . |
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$$ | . . . . . . - - - - - - - - - . . . . . . |
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$$ | . . . . . . . . . . . . . . . . . . . . . |
$$ --------------------------------------------[/go]


Anybody interested in a game on this board? It has exactly one less space than a normal board. But 66% more edge :P We could play it on a server even if there's one that could do this. The convex corners have me curious, because unlike normal corners they have all 4 liberties.
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perceval
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Re: Donut board

Post by perceval »

i ll be interested why not a malkovitch ?
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shapenaji
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Re: Donut board

Post by shapenaji »

I've always wanted to do one of these!

I would totally be in.

EDIT:

Though, my initial analysis is that the battles will interact very little, this will basically be a series of local life and death problems. Pincering will almost always be the right move (and close pincers.)

An immediate pincer leads directly into a life and death struggle. BUT there IS something interesting, because of the special corners, it is actually rather difficult to kill things on the edge, if they can run along far enough, they will get free.
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Re: Donut board

Post by perceval »

shapenaji wrote:I've always wanted to do one of these!

I would totally be in.

EDIT:

Though, my initial analysis is that the battles will interact very little, this will basically be a series of local life and death problems. Pincering will almost always be the right move (and close pincers.)

An immediate pincer leads directly into a life and death struggle. BUT there IS something interesting, because of the special corners, it is actually rather difficult to kill things on the edge, if they can run along far enough, they will get free.

i more or less thought the same thing but you could also try a moyo strategy. if you take the "internal" corners there is no escape so a runnning battle would be unplayable.
for example

Click Here To Show Diagram Code
[go]$$c hard to invade ?
$$ | . . . . . . - - - - - - - - - . . . . . . |
$$ | . . . . . . - - - - - - - - - . . . . . . |
$$ | . . . . . B . . . . . . . . . B . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . . . |
$$ | . . . B . . . . . . B . . . . . . B . . . |
$$ | . . . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . . . |
$$ --------------------------------------------[/go]
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Re: Donut board

Post by emeraldemon »

When I saw "donut board", I thought at first you meant a toroid, i.e. a board where the edges wrap around. That has been tried also a few times, it would make for an interesting malkovich :)
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Re: Donut board

Post by Numsgil »

I don't mind Malkovich, I just wasn't sure I could fine anyone interested given the time commitment (it's still about the same size as a proper board).

Sounds like both shapenaji and perceval are game for a malkovich? I can set up two threads. Do we want to try and figure out how a handicap would work? Or just leave it as even (I think even is fine).
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Re: Donut board

Post by perceval »

i think even is fine between us given that its an unkown setup; please start the thread and we' :rambo: ll see
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Re: Donut board

Post by shapenaji »

Sure, I'll play one.
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Re: Donut board

Post by hyperpape »

I'm interested if anyone else is. I can already tell from the other boards that my reading is screwy...
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Re: Donut board

Post by Numsgil »

I'd volunteer but I have my hands full :)
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Re: Donut board

Post by Loons »

I have a question about donut board strategy which I will, perhaps erroneously, hide.
How does black resist mirror go, considering komi?
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Re: Donut board

Post by hyperpape »

Hiding seems like the right choice.

Loons wrote:How does black resist mirror go, considering komi?
Ruh-roh! That's a good question. Not all of the usual tricks rely on tengen, do they?
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Re: Donut board

Post by Celebrir »

This seems like a tengen variation for this board:

Click Here To Show Diagram Code
[go]$$Bc1 Mirror breaking
$$ --------------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . . . |
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$$ | . . . . . O O O O O O O O O O 7 . . . . . |
$$ | . . . . O X X X X X X X X X X O 9 . . . . |
$$ | . . . . O X - - - - - - - - - O 5 . . . . |
$$ | . . . . O X - - - - - - - - - O 3 . . . . |
$$ | . . . . O X - - - - - - - - - O 1 . . . . |
$$ | . . . . O X - - - - - - - - - O X . . . . |
$$ | . . . . O X - - - - - - - - - O X . . . . |
$$ | . . . . O X - - - - - - - - - O X . . . . |
$$ | . . . . 2 X - - - - - - - - - O X . . . . |
$$ | . . . . 4 X - - - - - - - - - O X . . . . |
$$ | . . . . 6 X - - - - - - - - - O X . . . . |
$$ | . . . . . X O O O O O O O O O O X . . . . |
$$ | . . . . . 8 X X X X X X X X X X . . . . . |
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$$ | . . . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . . . |
$$ --------------------------------------------[/go]
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Re: Donut board

Post by Numsgil »

Anyone figure out any go software that can handle this board? SmartGo and Drago both fail because they don't seem to let you make boards larger than 19x19. CGoban let's you make 21x21, but there's no way to set edges in the center, or have permanent markings on the board to show the border.

I hate trying to figure out variations with ascii diagrams.
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Re: Donut board

Post by Celebrir »

Numsgil wrote:Anyone figure out any go software that can handle this board? SmartGo and Drago both fail because they don't seem to let you make boards larger than 19x19. CGoban let's you make 21x21, but there's no way to set edges in the center, or have permanent markings on the board to show the border.

I hate trying to figure out variations with ascii diagrams.


Maybe you can make a 21x12 board with cgoban and mark the middle with squares. You can edit away captured stones and if you count just make a big seki in the middle. I know it's not really good, but the best which comes to my mind.
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