Interesting move that machine couldn't see! is it or not?

here is a game between Tarrasch and Alekhine, A. 1922.  Brilliant game, while analysing this game, after 16th move of white i found interesting move from black side. Alekhine played very good move 16....Nfg4, which is one of choice of machine also. here i found other alternative choice of move, which is 16.....Nd3!?, surprisingly, this move is not suggested by machines, even not in their best choices. but after deep analysis i found this move creates immediate threats and gaining great positional advantage following by sacrifices. and white losses by all ways, whether white captures knight on d3 or rook simply goes back to f1.

I have done some analysis after move 16....Nd3!?.

Friends, i have chacked many sub variations after 16.....Nd3!? in detail, cant include all this here, my observation is after 16....Nd3!?, black has very superior position even white captures knight on d3 or rook simply goes back to f1, please suggest your ideas on 16.....Nd3!? 

Thanks.

interestin, i wil ahve a look at it.

Here it is. Be5 was a better defense, and also it must be noted that the game contiue was very strong

...to review shortly....

thanks chessking dreamer, i m looking at Be5

20.Be5.......25.Bxd4 is good defence but after 20.Be5 black can capture bishop on e5 first instead of bishop on d3 and continues as 20.Be5 Nxe5 21.g3 exd3 22.gxh4 pxc2 23.Nb2 d4 24.exd4 Rxd4 25.Rxe5 Rxd2 better for black.  I like to play open games,  As per my aggrassive playing style, i have chosen 16...Nd3!

it must be said that alekhine won surprisingly easy after his 17th move.