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math.HO2013
Successful strategies for a queens placing game on an n x n chess board
Thomas Jenrich
In his list of open problems, Martin Erickson described a certain game: "Two players alternately put queens on an n x n chess board so that each new queen is not in range of any qu…
math.MG2013★ 8 cited
A 64-dimensional two-distance counterexample to Borsuk's conjecture
Thomas Jenrich
In 1933 Karol Borsuk asked whether each bounded set in the n-dimensional Euclidean space can be divided into n+1 parts of smaller diameter. The diameter of a set is defined as the…