Chess Puzzle - Series 3469

                     Black to move. How should black proceed ?

Endgame Tactics By gmknockout

(  Q + 2R + 2B + 6P + K vs Q + 2R + 2B + 2N + 5P + K )

 

GM_Knockout said ;

1. ...Ndxf3+!!
2. Bgxf3 Bgxf2+!
3. Kxf2 Qxf3+
4. Kg1 Rhg5+
5. Qg3 Qxg3#

OR

1. ...Ndxf3+!!
2. Bgxf3 Bgxf2+!
3. Qxf2 Bxf3
4. Rae1 Rhg5+
5. Kf1 Bg2+!! 
6. Qxg2 R5xg2
7. Kxg2 Rd2+
8. Kf1 Qf3+
9. Kg1 Qg2#

OR

1. ...Ndxf3+!!
2. Bgxf3 Bgxf2+!
3. Qxf2 Bxf3
4. Rae1 Rhg5+
5. Kf1 Bg2+!! 
6. Kg1 Bh3+
7. Kh2 R8d2!
8. Qxd2 Qg3#

- Black won 0-1