Error with puzzle

Puzzle #GYhlm has two solutions. I played Silver drop to 72 but failed the puzzle. Computer shows 2 solutions to this puzzle, silver 72 which is mate in 11, and gold 72 which is mate in 13 (engine shows it as mate in 17 though it does correct itself after making the move).

1

In case you don't like the puzzle, give it thumbs down. Eventually it will be eliminated by the system.
I agree, it shows two very close solutions...