Good puzzle!

2...g5 would be a better resistance for Black, though after 3.hg# it is still mate in 3.

prativa.....Queen g4+ mate ,following rf1+(black rook is pinned

This position resembles a typical follow up to the classic bishop sacrifice bxh7+.  The book Sacking the Citadel was an amazing book on the subject of the classic attack bxh7+ followed by Ng5+.  With over 300 example games spanning over 400 years it was very insiteful and fascinating.  Because of this book I immediately knew the follow up moves.  The Knight move setting up the Queen mate on the focal point g7 is very common in that attacking scheme.  I would recommend that book to everyone.  Easy read and wonderfully exciting.

nice one

Good one

Ya, you're puzzle is wrong there smart guy. Maybe spend less time spamming and you would've seen. Queen to G4 on move 2 would have been Checkmate for white.

The great mate starts with a pawn move (like a journey of a thousand miles starts with a small step)

nice one

too easy

Why not 3.Bxe4?

Seems to me that that works too.

As easy as 3.14159265... oh wait, wrong one...

[FEN "3r1b2/p2k4/1p3pp1/1NP1n3/1B2P1n1/2PpPbK1/PR1P4/7r b - - 0 1"]

3r1b2/p2k4/1p3pp1/1NP1n3/1B2P1n1/2PpPbK1/PR1P4/7r b - - 0 1

Black to move and mate in 3....please list all variations in the answer (this was from an actual game I played last night.

"Great u solved it, but you didn't list all the possible variations...the white king can actually go to two squares...Kh3 or Kh4 without being mated in two (with 3. Rg8+ Kf4  4. Bh6++)as after Bxc5 any any all legal moves in the position by white lead to Rh8++...white doesn't have to take back with his/her bishop.

So how many 3 move mating variations are there....still counting. Actual game went 3. Rb8+ Kf4 4. Bh6++. I was hoping he would have played the best defense with Kh3 or Kh4 (though he was lost anyhow).

PS: By the way the white king can't go to h2 after my Rg1+ as you listed in the (much abbreviated solution)

PSS: I'm simply amazed at the reply posts which state they found the puzzle easy as no one did as I asked and listed the (massive list) of 3 move variations leading to mate in 3 by black! I'm still counting all possible three-move variations myself which makes this chess puzzle a "pain in the arse" to "properly" solve by listing all 3 move mates in the position (required for any mate-in-? puzzle)...easy?

nice puzzle

had to be!!

Congrats on your win Caissa.

nice and simple...

Sweet moves 

give me super difficult puzzle