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2 D On 3 D Goban
   

Playing 2-D Go on 3-D shapes.

Here, a 3D shape is used, and Go is played on the surface of it.

Locally, this means that 2D go is played, but edge and corner effects are of course different from the usual. The 3D shape used can of course be anything, but the simplest ones are a sphere and a cube.

From a post to RGG by Matthew MACFADYEN

I constructed a SPHERICAL board with 60 points on it - the "small rhombicosidodecahedron" (12 pentagons, 20 triangles, 30 squares, arranged symmetrically with 2 squares, one triangle, one pentagon at each vertex).

This was made of card, with an iron nail at each vertex so that magnetic stones stuck on, and mounted in gimbals like a globe. It worked quite well as a game, normally it proved quite difficult to make two independent live groups.

From a post to RGG by Bill TAYLOR

There is also the possibility of playing on the surface of a CUBE. This could be quite cute. There is a tiny corner effect, nowhere near that of regular boards. The edges are locally just like the interior of a regular board - no funny effects at all. Best of all, one could play on *physical* boards this way - a cubical wire grid framework, with clip-on pieces. It would be fun to turn the board over and over in one's hand!

There are two ways the corners could be arranged.

  • Points along the physical edges, and at the vertices
  • Points just alongside the physical edges (and corners)

On the former, there are 8 points with only 3 neighbours.
On the latter, all points have 4 neighbours, but there are 8 places where three points are mutual neighbours.

Both forms of irregularity can act as ladder-breakers.



This is a copy of the living page "2 D On 3 D Goban" at Sensei's Library.
(C) the Authors, published under the OpenContent License V1.0.