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Paper detail

Æquitas: Two-Player Counterfeit Coin Games

We discuss games involving a counterfeit coin. Given one counterfeit coin among a number of otherwise identical coins, two players with full knowledge of the fake coin take turns weighing coins on a two-pan scale, under the condition that on every turn they reveal some information to an Observer with limited prior knowledge about the coins. We study several games depending on the types of the counterfeit coin, the end-game condition, and the availability of extra genuine coins. We present the winning positions and the Grundy numbers for these games.

preprint2022arXivOpen access
Kyle BurkeTanya KhovanovaJoshua LeeRichard J. NowakowskiAmelia RowlandCraig Tennenhouse
math.COmath.HO
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Kyle BurkeTanya KhovanovaJoshua LeeRichard J. NowakowskiAmelia RowlandCraig Tennenhouse

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