Well, my hint would be that you should remember Stamma's Mate only works if the enemy king is in one of those two particular files on the side of the board at all times.
Now for yet another original composition, this is a different form of mating pattern called an Epaulette Mate. As with many puzzles of this type, recognizing the type of mate is the biggest clue to solving the puzzle.
Black to move and mate in three.
The FEN is:
2r5/1k4PR/1p3R2/1K6/1P6/P7/1r6/8
Last edited by Nullifidian; 04-22-2008 at 09:47 AM.