C10: French with 3 Nc3: Unusual Black 3rd moves and 3...dxe4
1.e4 Nc6 2.d4 e6 3.Nf3 Nf6 4.Nc3 d5 5.e5 Ne4 6.Bd3 Nxc3 7.bxc3 Be7 8.0-0N a strong novelty [8.h4 is always played in this position]
8...0-0N [8...Na5 was played in Fuksik-Buran, Morava-ch U20 1992, the only game I have with this position]
9.Rb1 a5 10.h3 b6 11.Nh2 f6 [11...Ba6 12.Qg4 Kh8 13.f4+/= ]
12.exf6+/- Bxf6 13.Qh5!? this plan is a little dubious because Black's development is fine [>=13.Ba3! Be7 14.Bxe7 Qxe7 15.Re1+/- ]
13...g6= 14.Qe2 having done its job of weakening the kingside, the Queen retreats
14...e5! a good reaction in the center
15.Bb5 exd4?? Black must have either not seen the threat or had a panic over the e-pawn [after >=15...Na7 16.Bd3 (16.dxe5?! Nxb5 17.Rxb5 Bg7!-/+ Black is going to win an exchange on the a6-f1 diagonal) 16...exd4 17.cxd4 Bxd4=/+ ]
16.Bxc6+- Qd6? now there are just a few cute 'best wins' the rest of the way that are fun to look at
17.Bxa8 dxc3 18.Qd3 d4 19.Be4 Be5 20.Ng4 Kg7 21.Bh6+? Kf7 22.Bxf8 [22.Qf3+! Kg8 (22...Ke8 23.Bc6+ Kd8 24.Bg5+ Bf6 25.Bxf6+ Rxf6 26.Nxf6+- ) 23.Bd5+ Kh8 24.Bxf8 Qd7+- ]
22...Qxf8 23.Nxe5+ Kg7 24.f4 Qf6 25.Qxd4 g5 26.Nf3 [26.fxg5 Qxg5 27.Ng4+ Kg8 28.Bd5+ Qxd5 29.Nh6#! ]
26...gxf4 27.Qxf6+ Kxf6 28.Nh2 Ba6 29.Rxf4+ Ke5 30.g3 b5 31.Ng4+ Kd4 32.Bd3+ [32.Rf5! c6 (32...Kxe4 33.Rbf1 with R1f4# on the next move) 33.Rd1+ Kc4 34.a3 b4 35.Ne3# ]
32...Kc5 33.Bxb5! Bxb5 34.Rf5+ 1-0