Alright, time for puzzle #2!

 

Today's puzzle is not quite a difficult as yesterdays, but I still really enjoy it.  To go along with the new puzzle, I've changed the names of the post so that they're a bit more intuitive (I didn't want people to think I was starting a play-by-post Dungeons and Dragons game after all )

 

Same rules as yesterdays:

 

1.) White must mate in 3 moves.  No exceptions.  Assume that you have 1m30s on the clock and each move takes you 30s to make (whether it actually takes you 30 seconds, 5 minutes, 10 minutes or 10 seconds, just assume it takes 30s).  If you don't mate in 3, it's game over and black wins.

 

2.) There is only one key move to obtain mate in 3.  (If you find others, please let me know )

 

3.) No first key move will result in a check, a capture, or involve the promotion of a pawn.

 

 

 

You can find previous Dungeon Puzzles below:

Puzzle #1 

What's wrong with mate in one move with Qe4#?

My apologies Vin, I had put a bishop instead of a pawn.  I'll correct the puzzle now.  Thanks for catching that

 

*Update* I jotted out the FEN for this puzzle years ago and at the time (though the diagram was correct) accidently put a B instead of a P, ahh well.  It's corrected now. 

nice puzzle!

Why black didn't move 2....Kxd6? This would have delayed the mate by quite a few moves. Am I missing something?

 

2....Kxd6 3.Qc5#

Oh yeah! how could I miss it .... I think I had a mental block that if I loose a knight, I would not be able to mate within 3 moves. Nice puzzle though! - Vinod

Heh, yeah, wait until you see some of the later puzzles.  Several of them have to do with completely crazy sacrifices that you'd never think leads to a 3 mover.  Lots of fun

it took me 15 minutes, still I couldn't find the correct solution. all in all, great contribution to the community, thank you! But just need a little correction before posted.

Thank you Bali   I'll be posting Dungeon #3 this evening.

I really like your puzzles Nyarlathotep,they are challenging.Instead I find the daily puzzles from dailypuzzle a bit easy (no offense by any means,they are very good for less experienced players)

I got this one, but only through luck. I can't do any of your others