Chess: Understanding Petroff's Defense

1 e4 e5 2 Nf3 Nf6 3 d4 Nxe4 4 Bd3 d5
5 dxe5 Nc6 6 O-O Bg4 7 Nc3 Nxc3
8 bxc3 Be7 9 Re1 Qd7 10 h3 Bh5
11 Rb1 O-O-O Line



1 e4 e5 2 Nf3 Nf6:



3 d4



3 Nxe5
3 Nc3
3 d3
3 Bc4
3 Qe2
3 a3

3 ... Nxe4



3 ... d6
3 ... exd4
3 ... d5

4 Bd3



4 dxe5
4 Nxe5
4 Bc4
4 Qe2
4 Nbd2

4 ... d5



4 ... Nc6
4 ... f5
4 ... Be7
4 ... h6

5 dxe5



5 Nxe5
5 Bxe4
5 O-O
5 Qe2
5 c3

5 ... Nc6



5 ... Be7
5 ... Bb4+
5 ... Nd7
5 ... Nc5
5 ... Bg4
5 ... Bf5

6 O-O



6 Bf4
6 Nbd2
6 Bxe4
6 Qe2
6 h3
6 a3
6 Be3

6 ... Bg4



6 ... Be7
6 ... Bf5
6 ... Bc5
6 ... Qe7

7 Nc3



7 Bb5
7 Nbd2
7 Bf4
7 h3
7 Bf4
7 Qe2
7 Be3

7 ... Nxc3



7 ... Bxf3
7 ... Bf5
7 ... Nc5
7 ... Rb8
7 ... f6

8 bxc3



8 ... Be7



8 ... Bc5
8 ... Qd7
8 ... Qe8
8 ... Rb8
8 ... a6

9 Re1



9 Bf4
9 h3
9 Rb1
9 Qe2

9 ... Qd7



9 ... O-O
9 ... Rb8
9 ... Qd7
9 ... a6
9 ... h6
9 ... Rc8

10 h3



10 Rb1
10 Bb2
10 Bf4
10 a4
10 Be2

10 ... Bh5



10 ... Bf5
10 ... Bxf3
10 ... Bxh3

11 Rb1



11 Be2
11 Bf4
11 Qe2
11 Bb2
11 Be3

11 ... O-O-O



11 ... Nd8
11 ... Rb8
11 ... Na5
11 ... a6
11 ... Rd8

By ChangeIsComing