On the usual go board, intersections are not equal: when you place a stone, it can have four liberties, three (on the side) or two (in the corner).
Have you ever thought of a go board, on which all the intersections would have four liberties? Nikola Tsarigradski has created such a board - it has a shape of a torus (or simply a donut).
In the August edition of the European Go Journal, we will publish Nikola's article on his research.
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