This is the last chess composition Pal Benko shared with me when I visited him and his wife at their home in Budapest last week.
This is a a Help Mate Composition! From the starting position, White starts the game and checkmates Black by En Passant on the 9th move!
In addition, the game MUST include all the SPECIAL chess moves (at least from one side) such as Pawn Promotion, Castling, En Passant (in addition to the final checkmate), and Discovered Check. There is only one possible solution (according to Benko himself).
He was very proud of this Help Mate Masterpiece and asked me to share it with all of you! This was his final request to me.