C43: Petroff Defence: 3 d4
1.e4 e5 2.Nf3 Nf6 3.d4 Nxe4 4.Bd3 Bb4+? [4...d5 is the book move]
5.c3 Nxf2 6.Kxf2 Bd6 7.dxe5?! it might be better to avoid lines where the King is exposed [7.Nxe5 Qh4+ 8.g3 Qf6+ 9.Nf3 0-0+- ]
7...Bc5+ 8.Nd4 [8.Kg3 d5+- ]
8...0-0 [8...Nc6 9.Qg4 Kf8+- gives Black some chances]
9.Qf3 Nc6 10.Qe4 Re8?? [10...g6+- ]
11.b4? missing an early checkmate [11.Qxh7+ Kf8 12.Qh8+ Ke7 13.Bg5+ f6 14.Qxg7# ]
11...d5?? [11...Bxd4+ 12.cxd4 f5!!+- /\13.Qxf5?? Rf8-+ ]
12.Qxh7+ Kf8 13.Re1 [>=13.Qh8+ Ke7 14.Bg5+ Kd7 (14...f6 15.Qxg7# ) 15.Bf5+ Re6 16.Bxe6+ fxe6 17.Bxd8 Nxd4 18.bxc5+- ]
13...Nxd4 14.Na3? [>=14.bxc5 Ne6 15.Bf5+- ]
14...Nc2+ [14...Bf5 15.Bxf5 Nxf5+ 16.bxc5 Qh4+ 17.Qxh4 Nxh4+- at least survives the middlegame only a piece down]
15.bxc5 Nxe1 16.Qh8+ Ke7 17.Bg5+ Ke6 18.Qh3+ f5 [18...Kxe5 19.Rxe1# ]
19.Qxf5# 1-0