Brilliant Puzzle Collection!

First move was brilliant

There's a mate in 6 in this one, white to move:

this is a great puzzle (and mate)! thanks for showing

Here's a Black to move and mate in 10:

White to move and mate in 4:

White to move and mate in 4:

Black to move and mate in 6:

White to move, mate in 12

White to move and mate in 13:

white starts and win.

White to move and mate in 2:

Black to move and mate in 3:

Memories. I did it completely by memory instantly, I remember seeing it a while before. I guess my neurons really liked this one and it stuck with me. Do you know where is it from originally?

Ok, I looked it up in an old database on my other computer and it looks like it's from here:

Here is another nice Novotny/interference theme by Milan Vukcevich who was one of the best American problem composers ever which I also found in that same database. White to move and mate in 2:

White to move and mate in 3:

White to move and mate in 7:

puzzle in the works! still

i give up on the puzzle its not even done yet

found this on lichess 2700 elo puzzle good luck

found this as a 2450 elo lichess puzzle