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3.Nc3 … 6...Qxd5 7.Qe2 Bg4 8.Nc3: Petrov Defense line
Petrov Defense line, 14 moves deep. You play Black.
e4
e5
Nf3
Nf6
Nc3
Nc6
Bc4
Nxe4
Nxe4
d5
Bxd5
Qxd5
Qe2
Bg4
Nc3
Qd6
h3
Bh5
g4
Bg6
d3
O-O-O
Be3
Nd4
Bxd4
exd4
Ne4
Qb4+