Inspired by the inverse problems related to geomagnetism I propose an exploration game using simple devices to survey magnetic anomalies. The game, in its simplest form, has the objective to find the position and orientation of a single dipole inside a black box, based on measurements of field directions collected with a compass outside the box. The richness of the game resides partially in its set up simplicity and in the complexity that unfolds when dealing with inverse problems related to vector field analysis.

中文翻译：

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地磁反问题：磁异常探测游戏

受与地磁有关的反问题的启发，我提出了一个探索游戏，该游戏使用简单的设备来测量磁异常。以最简单的形式进行的游戏，其目的是根据黑匣子外的指南针收集到的磁场方向的测量结果，找出黑匣子内单个偶极子的位置和方向。游戏的丰富性部分在于其设置的简单性和处理与矢量场分析有关的逆问题时展现出的复杂性。