I like this idea, though, with how variable the game can be, finding forced mate positions may be difficult lol...it may become more of a debate than a puzzle.
This one seems legit though, Black has zero gold.
Rook I7 takes B7, the best move I see for Black would be King C or A 10,
then White moves Rook I8 to A8 for Siegemate.
I have an idea: create puzzles from your own games and post them here to have people solve them!
I guess I'll start with this:
Goal: Mate in 2