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Newsgroups: rec.games.abstract
From: rrognlie@netcom.com (Richard Rognlie)
Subject: Re: The Game of Y: rules/info ?
Date: Tue, 13 Dec 1994 23:27:31 GMT
: I am interested in learning more about the game
: I saw this reviewed in games magazine 12/94.
The game is played on a roughly triangular board that looks something
like the following:
____
/ \____
/ __/ \__
\__/ \__ \____
/ \ \____/ \__
/ / __/ \__ \____
\ \__/ \__ \____/ \__
/ / \ \____/ \__ \__
\__/ / __/ \__ \____/ \__
/ \ \__/ \__ \____/ \ \__
/ / / \ \____/ \ \____/ \__
\ \__/ / __/ \ \____/ \ \
/ / \ \__/ \__ \____/ \ \__ \__
\__/ / / \ \__/ \ \____/ \__/ \__
/ \ \__/ / / \ \____/ \ \ \
/ / / \ \____/ \____/ \ \__ \__ \__
\ \__/ \__/ \____/ \ \____/ \__/ \__/ \__
/ / \ / \ / \ \____/ \ \ \ \
\__/ \__/ \__/ \____/ \__ \__ \__ \__ \__
/ \ / \ / \ / \ / \__/ \__/ \__/ \__/ \
\ \__/ \__/ \____/ \__/ \ \ \ \ \
/ / \ / \ / \ / \ __/ __/ __/ __/ /
\__/ \__/ \__/ \____/ \__/ \__/ \__/ \__/ \__/
/ \ / \ / \ / \____/ / / / /
\ \__/ \__/ \____/ / \____/ __/ __/ __/
/ / \ / \____/ \____/ / \__/ \__/ \__/
\ \ \__/ / \ / \____/ / / /
\__/ / \ \ \__/ / \____/ __/ __/
/ \ \ \__/ __/ \____/ / \__/ \__/
\ \__/ / \__/ / \____/ / /
/ / \ \ \____/ / \____/ __/
\ \ \__/ __/ \____/ / \__/
\__/ / \__/ __/ \____/ __/
/ \ \ \____/ __/ \__/
\ \__/ __/ \____/ __/
/ / \__/ __/ \____/
\ \ \____/ __/
\__/ __/ \____/
/ \__/ __/
\ \____/
\____/
Players take turns placing stones of their colour (one player is white,
the other black) on the board, trying to connect the 3 sides of the board
with a single set of fully connected stones. The stones are placed on
the intersection points on the lines. A corner counts as being part of both
sides.
Richard
--
/\/\/\ | Richard Rognlie / Sr. Computer Analyst / PRC Inc. / McLean, VA
/ \ \ \ | E-Mail: rrognlie@netcom.com *or* rognlie_richard@prc.com
\ / / / | Phone: (Home) (703) 361-4764 (Office) (703) 556-2458
\/\/\/ | (Fax) (703) 556-1174
From: wft@math.canterbury.ac.nz (Bill Taylor)
Newsgroups: rec.games.abstract
Subject: Re: The Game of Y: rules/info ?
Date: 14 Dec 1994 02:07:00 GMT
rrognlie@netcom.com (Richard Rognlie) writes:
> The game is played on a roughly triangular board that looks something
> like the following:
[Exellent ascii board, program-drawn by Dan Hoey; snipped]
> Players take turns placing stones of their colour (one player is white,
> the other black) on the board, trying to connect the 3 sides of the board
> with a single set of fully connected stones.
And don't forget the variant invented by Dan Hoey & myself, "Projective Y":-
played on the same board, but with diametrically opposite edge points
identified, (i.e. a board on a projective plane), the winner being the
first to make a closed loop which is non-contractible-to-a-point.
This is one of the more abstract of abstract games around; it should appeal to
mathematicians in particular. J.H.Conway should have invented it!
-------------------------------------------------------------------------------
Bill Taylor wft@math.canterbury.ac.nz
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I'm not one of the main actors in the computing world, just a bit player.
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Newsgroups: rec.games.abstract
From: rrognlie@netcom.com (Richard Rognlie)
Subject: Re: The Game of Y: rules/info ?
Date: Fri, 16 Dec 1994 12:42:06 GMT
: Why was the board shaped like that, rather than a straight hexagonal
: lattice?
There are 3 points which have only 5 connection points (rather than the
normal 6). That forces the curved shape. It also reduces the 1st player
advantage a little (in theory). I still opt for 1 move equalization (e.g.,
player A moves. Player B has option of accepting player A's move as his
own, or making his own move. Play continues.)
--
/\/\/\ | Richard Rognlie / Sr. Computer Analyst / PRC Inc. / McLean, VA
/ \ \ \ | E-Mail: rrognlie@netcom.com *or* rognlie_richard@prc.com
\ / / / | Phone: (Home) (703) 361-4764 (Office) (703) 556-2458
\/\/\/ | (Fax) (703) 556-1174