it was fascinating

one blink of an eye!

why white did not move RdxQe2?

You could move to Alaska. They don't have a knight. You can probably see Alaska from where you live.

Cool puzzle.

Great puzzle!

I like (and used to) that aggressive tactics ;)

That's why I could solve the puzzle!

7th

nice

a way to kill yourself

White's middle game looked like Kindergarten Chess!

Why not??...    1.Ne2+, Rdxe2. 2.Qxe2 [if 2.Qxe2, Rxe2 3.Tf1++]

1.Ne2+, Rexe2. 2.Tf1++

Very nice

interesting one!!

done

the other way is to start with Ne7+

Please show us the forced mate in two moves.

I see a sure win for black unless he blunders, but no quick forced mate.  I found several very different continuations.  I think that white must offer to trade queens on the next move (to prevent a quick mate).  So one of the variations  starts out 4. Qe3  Qxe3, 5 Rxe3  Rxf6.  (Another is 4. Qf2  Qxf2,  5. Rxf2  Kxf2)  Eventually, white is forced to trade rooks, and the knight advantage is overwhelming. 

In fact, white must be careful to avoid situations in which a check by the knight forces him to trade his rook for the knight.   For example:
4. Qe3     Qxe3
5. Rxe3    Rxf6
6. Re7     Rf7
7. Re8     Kg7
8. h3       Nc6
9. Re4     Re7
10. Rf4    g5
11. Rgr    h6
12. h4     Ne5
13. Rg3   g4
14. h5    Kf3
15. Re3  Nf3+
16. gxf3 Rxe3

I'm sure we can find less-than-best moves on both sides in this sequence (and in others I looked at), but the point is, white is forced into a losing end game.

good one!