[FEN "7k/8/8/8/6p1/4QpPb/5PpP/6K1 w - - 0 1"]
I found this interesting and unique chess problem online while surfing on the internet.
Disclaimer: This is not necessarily a position from a game. It's just a beautiful composition wherein your objective as White is to checkmate the black king. White is moving from bottom to top and Black is moving from top to bottom.
This problem was composed by the Hungarian Engineer, Ottó Bláthy.
It's White's turn. Can you find the winning move continuation for White?