Here's the solution to the mate in 16 in post #61 since apparently nobody solved it, I guess it wasn't "so easy" as my "bro" in post #57 @guynamedhayden said about the mate in 13 I posted in post #56 which he claimed to have "solved", of course I'm a bit skeptical as to whether he solved it as it is one which engines couldn't even solve.
White to move and mate in 16: