DDG 4.Nc3 Nf6

1.e4 e6 2.d4 d5 3.c4 dxe4 4.Nc3 Nf6! [Minev]. Now White's main idea is to play f3, the move typical to all Diemer gambits. It simply confirms the gambit, which, if accepted, allows White's other knight come to play with a tempo. Instead of playing 5.f3, White can also play a few other moves to avoid some unwanted lines. 5.Nge2 may be the only line where White has a totally different plan.



A) 5...Be7


B) 5...Nbd7 6.Nxe4 c6 7.Nf3 transposes to the Cambridge Springs Defence.

One transposition could be 1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 dxe4 (French Defence, Burn Variation) 5.Nxe4 Be7 6.Bxf6 gxf6 7.Nf3 b6 8.Bd3 Bb7 9.O-O Nd7 10.c4 c6 11.Qe2, 1-0 in 23, Gdanski - Meyer, 1991.

C) 5...h6 6.Bh4 g5 7.Bg3 b6 8.f3 Bb7 transposes to game 1.d4 b6 2.c4 Bb7 3.Nc3 Nf6 4.Bg5 h6 5.Bh4 d5 6.f3 e6 7.e4 g5 8.Bg3 dxe4 9.h4 Bd6 10.Bf2 exf3 11.Nxf3 g4 12.Nd2 Nbd7 13.a3 c5 14.Nb5 Bf4 15.Qe2 a6 16.Nc3 cxd4 17.Bxd4 Bg3+ 18.Kd1 Qc7, 0-1 in 36, Guevera - Farleigh, Moscow 1994.



A) 5...Be7 6.f3

B) 5...c5! -/+ [ECO] 6.Be3 cxd4 7.Bxd4 Be7 8.Be3 O-O 9.Qxd8 Rxd8 10.Nge2 b6 11.Ng3 Bb7 12.Be2 Na6 13.b4 Rd7 14.O-O Rad8 15.Nb5 Bc6 16.Nxa7 Rxa7 17.Bxb6 Rad7 18.Bxd8 Bxd8 19.b5, 1-0 in 47, Brause - blc, FICS 1996.

C) 5...Nc6 6.Be3 e5 7.dxe5 Qxd1+ 8.Rxd1 Nxe5 9.Nb5 Bd6 10.Rxd6 cxd6 11.Nc7+ Kd7 12.Nxa8 b6 13.Nxb6+, 1-0 in 24, Brause - MinoanPrince, FICS 1996.


The king's knight on e2 became popular in the first DDG e-mail tournament. Especially the strongest players preferred this to f3, which hopes to get the knight on f3 with a tempo. Brause has also played Nge2 a lot. Quite often White manages to win the sacrificed pawn back, which, however, sounds an odd plan: why play the gambit in the first place if material is so important.


A) 5...Nc6 6.g3 (very original 6.b3 Bb4 7.Bb2 was suggested by Chessmaster 3000) Bb4 7.Bg2 Bxc3+ 8.bxc3 O-O 9.Bg5 (9.O-O b6 10.Bg5 a5 11.Bxe4, 1-0 in 26, Wall - Holsapple, 1982) h6 10.h4?! hxg5 11.hxg5 g6? 12.gxf6 Qxf6 13.Bxe4 Kg7 14.Nf4 Rd8 15.Qh5 Ne7 16.Qh6+ Kg8 17.Nh5 1-0, Clark - Rossiter, 1996.

B) 5...Bb4

C) 5...b6!? 6.Bg5 Bb7 7.d5 exd5 8.cxd5 Bc5 9.Nxe4 Nxe4?? 10.Qa4+ (10.Bxd8?? Bxf2#) Qd7 11.Qxe4+ Kf8 12.Nc3 f6 13.Bf4 Kf7 14.Bb5 c6 15.dxc6 Nxc6 16.O-O Qe6 17.Bc4 1-0, Brause - Chamaco, FICS 1997.

D) 5...c5 6.d5 exd5 7.cxd5 Bd6 8.Nxe4 Nxe4 9.Qa4+ Nd7 10.Qxe4+ Qe7 11.Qxe7+ Kxe7 12.Nc3 Nb6 13.Bd3 Re8 14.O-O g6 15.Re1+ 1-0, Brause - CME, FICS 1997.



A) 5...Nc6

B) 5...Bb4 6.Qc2

6.Qb3 Qe7 7.a3 Ba5?? 8.Qa4+ Nc6 9.b4 Bb6 10.c5 1-0, Brause - mega, FICS 1997.

C) 5...Be7 6.f3 exf3

After the modest 5...Be7, White has a wide range of choices:

D) 5...b6

The following ADG games and lines where c4 and Nc3 are deferred have similar ideas to this DDG line:

1.e4 e6 2.d4 d5 3.Be3 dxe4 4.f3 Nf6

E) 5...c6 6.f3 exf3 7.Qxf3 Qa5 8.O-O-O Nbd7 9.g4 h6 10.h4 (10.Bd3) Bb4 11.Nge2 Nb6 12.c5 Nbd5 13.Nxd5 Nxd5 14.Kb1 Bd7 15.Ng3 O-O-O 16.Ne4 Kb8 17.Bf2 Qa4 18.Bd3 f6 19.a3 Bxa3 20.Bc2 Qb4 21.Qxa3 Qxa3 22.bxa3 f5 23.Bg3+ Ka8 24.Nd6 Nc3+, draw in 39, Heikkinen - Bye, corr. 1998.


5.g4?! h6 6.h3 c6 would transpose to this Caro-Kann DDG game: 1.d4 c6 2.e4 d5 3.c4 dxe4 4.g4?! Nf6 (4...e5! -/+) 5.h3 h6 6. Nc3 e6 7.Bg2 Bb4 8.Ne2 c5 9.dxc5 Qxd1+ 10.Kxd1 Bxc3 11.Nxc3 O-O 12.Nxe4 Rd8+ 13.Kc2 Nxe4 14.Bxe4 Nc6 15.Bxc6 bxc6 16.b4 a6 17.Bb2 Rb8 18.Rad1 Bd7 19.a3 f6 20.Rd6 +/-, 1-0 in 32, Heikkinen - Villaseņor, Zone 1996.