Show me any puzzle you think I couldn't solve

Show me a puzzles for example like this. Note: It doesn't have to be this. You can show me any puzzle or tactics you want.

For example:

Here you go, a mate in 6 for you:

I forgive you when you can't solve this puzzle as it is unsolvable. It is one of the most common misapplied game tactics!

Try out this mate in 5:

change the theme to puzzle

The problem with this thread is the OP can't prove he isn't using an engine to solve the puzzle. Kind of a waste of time to even bother.

An engine won't solve the one in post #6, it's a long mate problem by Otto Blathy, and even though I posted the solutions to the 2 that I posted (post #2 and post #5) they are difficult for engines and the vast majority of engines will fail on the mate in 6 (post #2)

I can't even upload a 130 move long puzzle, let alone a 290 move one

He can use an engine on the one I posted. I'm not sure an engine can solve it.

edit: Use any resources you like. If you think outside the box there's an easy solution.

If it is White to move then just take the rook, if it is black to move, Black can draw with 50-move rule (Best defence is Rd7+)

An engine can solve the one you posted, I'll leave it at that rather than posting the solution.

Sure you can, look at this mate in 172:

Oh, I thought you wanted everyone to post the same puzzle.

Why don't you want that?

And the OP "puzzle" isn't even a win for white...

"I challenge you to give me a puzzle... oh, but I don't know how back rank mates work"

Perhaps that is what they meant, post a puzzle that doesn't work .

This doesn't make sense, you end up with a rook on d8 against the black king on b8, it can't move pawns, I don't see why it's not a win for white.

After 1.Qe8 what is every legal move black has?