这种解题方法很巧妙 英语怎么说啊?

This way of solution is ingenious.

This solution is really clever.
因为solution 已经有解决问题的意思了，所以不建议把“解题”也译出来，这样会显得累赘

this method is ingenious

This kind of solution approach is very ingenious.

This problem-solving approach is a clever.

The solution is brilliant.