Chess Opening Theory/1. e4/1...c6/2. d4/2...d5/3. Nc3/3...dxe4/4. Nxe4/4...Bf5/5. Ng3/5...Bg6/6. h4/6...h6/7. Nf3/7...Nd7/8. h5/8...Bh7/9. Bd3/9...Bxd3/10. Qxd3/10...e6/11. Bd2/11...Ngf6/12. O-O-O/12...Be7

= Caro-Kann Defence:Classical Variation = Black prepares to castle on kingside with 13...O-O. White's most popular move is the prophylactic 13.Kb1, while other options include 13.Ne4 and 13.Qe2, continuing operations in the centre.

Theory table
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1.e4 c6 2.d4 d5 3.Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Nf3 Nd7 8. h5 Bh7 9. Bd3 Bxd3 10. Qxd3 e6 11. Bd2 Ngf6 12.O-O-O Be7