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math.GM2025
Two Dimensional Silver Dollar Game
Ryohei Miyadera, Enchong Li, Akito Tsujii
We define a variant of the two-dimensional Silver Dollar game. Two coins are placed on a chessboard of unbounded size, and two players take turns choosing one of the coins and movi…
math.GM2024
A Problem of Knot
Ryohei Miyadera, Hikaru Manabe, Aoi Murakami +1
In this article, the authors give the correct answer to the following problem, which is presented in the well-known problem book "CHALLENGING MATHEMATICAL PROBLEMS WITH ELEMENTARY…