Why chessmood.com daily puzzles are so difficult? I can't solve even one of them so far.
Based on my experience I find the Chess Mood puzzles just at the right level of difficulty. Most of them I can solve, but sometimes I get tricked and I miss a less obvious move.
As David said, the more you solve them the easier they get. Sometimes, when you see the name of the puzzle author you already know what kind of tricks are more likely.
Now, if you haven't yet solved any puzzle, you may need to try harder. At the end, if you solve a puzzle by yourself after 1 hour or 2 hours, your satisfaction will be greater that from somebody else who solved it in 5 minutes.
And very soon you will be able to solve more puzzles and faster.
Frankie was working on his candidate moves and had trouble calculating a combination. "Coach! This is so tough. I can't see beyond my second move. Why do I need to torture my brain like this? I give up! Show me the right move."
Coach Mesgen replied, "Rurr-bish! You need to fo-cus. You can do it. Okay, I tell you what, just stare at c1 square for next fo-ur mi-nutes. Do not give up! It will co-me to you."
Frankie stared at the c1 square for four minutes. To his utter surprise, he found that for the first time in his life, he could calculate very deeply like a Grandmaster. Yes! The combination was now crystal clear. Problem solved.
"Coach! That worked! But how? Why??"
Coach Mesgen said "Sim-ple. If you c1, you have se-en them all."