下载 APKPure App
可在安卓获取Compass Ruler的历史版本
直尺和圆规的几何结构之谜！
Fun and really hard geometry construction puzzle!
The rules are simple:
* Create a circle using the compass through two existing points
* Create a line using the ruler through two existing points
* New points are created by intersections of circles and lines
Can you beat all the levels?