The extension of the classic 7-bridge problem, because this is an even number of points, so you can't draw a stroke at all.

Now look at the schematic diagram below! I will make your photos more popular.

XOXOX

OXOX

XOXOX

OXOXO

XOXOX

In this way, we can find that if we follow the rules, we will inevitably encounter X when we come out of O, and O when we come out of X. But after removing the first ring in the second row (that is, O), carefully count the number of OX in the picture above-

X- 13 O- 1 1。

That is to say, no matter how to connect, if you want to connect 24 rings, there must be two O's connected together, or duplicated, or any other illegal connection.

So there is no solution to this problem. ...

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