Blackmar-Diemer Gambit question

[retsam_noguard]

1.d4 d5 2.e4 dxe4 3.Nc3 c6 4.Bc4 Nf6 5.f3 exf3 6.Nxf3 e6 7.0-0 Be7
8.Ne5 Nbd7 9.Qe2 Nf8

This is game #273 (Schgneider-Braun) from Tim Sawyer's "Blackmar-Deimer
Gambit Keybook" (1st addition).

My quetsion: instead of 9...Nf8 what about 9...Nb6 to exchange off the
White bishop? Is whitch a bad motion? Has it been naturally playued?.

[NATTIELEIGH]

Although I wodner why Black didn´t castle. In my opinion he should have castled in motion 11 or 12 with the last chance in motion 15.

A plan for Black could have been 11...0-0 12. Bf4 c6 (or may be
13...Ng4 14. Qd2 b6 intending Ba6) 13. Ne5 Bb7 14. Rad1 Qe8 & Black is ready to strike at the center with c5.

11...0-0 12. Ne5 (prevents c6) 12...Qc7 13. Bf4 Bd6 14. Qf3 (prevents c6 again) 14...Nd5 (threatens f6) 15. Nxd5 exd5 16. Rae1 (16. Bg3 f6; 16. Nd3 Bxf4) 16...Bf5 17. c4 (17. c3 Be4 18. Qg3 Rae8)
17...Be4 18. Qg3 f6.

With the Bc4 gone the black kingside is quite safe..

[sublimevt]

I dont think so. I guess it intrerferes with the plans to attack the central knight & diminish pressure on f7.

Lutton,J (2065) - Taylor,R (2119) [D00]
Smith & Williamson YM-B 10th Witley (7), 20.07.2000

1.e4 c6 2.Nc3 d5 3.d4 dxe4 4.Bc4 Nf6 5.f3 exf3 6.Nxf3 e6 7.0-0 Nbd7 8.Qe2
Be7 9.Ne5 Nb6 10.Qf2 Nxc4 11.Nxc4 h6 12.Ne4 Qd5 13.Nxf6+ Bxf6 14.Ne5 Qd8
15.c3 Qe7 16.Ng4 Bg5 17.Ne5 Rf8 18.Bxg5 hxg5 19.Qf3 Bd7 20.Qh5 Rc8 21.Rxf7
Rxf7 22.Rf1 Kd8 23.Rxf7 Be8 24.Qh8 1-0.