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On Bichromatic Triangle Game

机译:关于双色三角游戏

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We study a combinatorial game called Bichromatic Triangle Game, defined as follows. Two players R and B construct a triangulation on a given planar point set V. Starting from no edges, they take turns drawing one straight edge that connects two points in V and does not cross any of the previously drawn edges. Player R uses color red and player B uses color blue. The first player who completes one empty monochromatic triangle is the winner. We show that each of the players can force a tie in the Bichromatic Triangle Game when the points of V are in convex position, and also in the case when there is exactly one inner point in the set V. As a consequence of those results, we obtain that the outcome of the Bichromatic Complete Triangulation Game (a modification of the Bichromatic Triangle Game) is also a tie for the same two cases regarding the set V.
机译:我们研究了一种称为双色三角游戏的组合游戏,定义如下。两个玩家R和B在给定的平面点集V上构造了一个三角剖分。他们从无边开始轮流绘制一个笔直的边,该边连接了V中的两个点,并且不与任何先前绘制的边交叉。玩家R使用红色,玩家B使用蓝色。第一个完成一个空的单色三角形的玩家是获胜者。我们证明了,当V点处于凸位置时,以及在集合V中恰好有一个内点的情况下,每位玩家都可以在双色三角游戏中强制平局。作为这些结果的结果,我们得到的结果是,双色完全三角剖分游戏(双色三角游戏的一种修改)的结果也是关于集合V的两个相同情况的平局。

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