Couldn't agree with Tilu's comment more. But I want to add something:
The other day I got it 1st try (and didn't leave a commment), today in 2 tries. But maybe next week, many more tries, even here. So, the same level can seem easy one day, but complicated the next time you get to it. And vice-versa. At least, this is the case with me.
As often said, some levels match better our thinking pattern: got that one on first try and found it very easy, while I will need 100s of tries on other levels... pffff...
