No Cross Line - puzzle game

I tried to play level 11. No matter how hard I try, I cannot solve for it. So I quitted the level and restarted it. This time, I passed it easily! So I restarted the level again and again until I know the reason. Sometimes there are 2 nodes with 5 lines connected, which help me pass the level easily. Sometimes there is only one node with 5 lines connected, which makes me stuck! How can you let people keep trying if you know that it is not even a planar graph?

是不是?

十一关咋过？求解

首先想说的是，在游戏的过程中，假如能加入一些点按和拖动的音效的话，那样游戏体验会好很多。然后就是游戏界面的配色，尽量不要先红绿这样互补色，看时间长了，眼前发黑，眼睛会很累的，尽量选一些明亮柔和的配色，玩游戏本来就是为了放松嘛，对吧~~~😎😎😎

很明显，第十二关无解。

三个三角形 中间一条线 有解

虽然进入第11关有不同的情况，但至少有一种情况是无解的：题目是6个点，12条线，6个点接线数量分别为5，4，4，4，4，3条，且只有3条线的点所连接的3个点不是两两互连，这样是无解的。请开发者修正。