Also Keep in mind you are viewing it from the white players perspective
Hardest mate in 1 puzzles
Try to find it. Here's the answer, highlight to read
.#
But how do you know black's last move was ...f7-f5?
Dude, you have to figure that out. Otherwise how can you do the mate?
PS. Why did you show my solution?!!
I contend that your problem has no solution. That is why I did not bother to hide it.
Say you walked into a room and two players were playing this position. They've told you it's white to move. Isn't it far more likely that Black's last move was something OTHER than ...f7-f5?
hey the en passant is illegal because any move i play is incorrect. i think u forgot to add the en passant. add it or else the puzzle is unsolvable

This one is very hard....
Rather too hard. It has no solution, as en-passant is not allowed in this position by the official Chess Compositions Codex.
You can also add that the initial position is illegal.


This one is a joke that I posted on this site earlier, but I'd like to post it here again. White to move and mate in 1.
You may read the FIDE Laws of Chess carefully to solve this. I think the idea behind this joke problem is still sound under current rules taking effect from 1 January 2023, unlike some famous ones, e.g. promotion into an opponent's piece or a piece already on the board, castling with a promoted rook, parrying the check by putting one's king in triple check, etc. which have all been fixed in the later versions of FIDE rules.
Black 2 Play Mate in 1