ECO chess codes B1 (thing)

B10 - Caro-Kann Defence 
1. e4 c6

B11 - Caro-Kann Defence Two Knights Variation
1. e4 c6   
2. Nf3 d5   
3. Nc3 Bg4

B12 - Caro-Kann Defence 
1. e4 c6   
2. d4

B13 - Caro-Kann Defence Exchange Variation
1. e4 c6   
2. d4 d5   
3. ed5 cd5

B14 - Caro-Kann Defence/Panov-Botvinnik attack
1. e4 c6   
2. d4 d5   
3. ed5 cd5   
4. c4 Nf6   
5. Nc3

B15 - Caro-Kann Defence 
1. e4 c6   
2. d4 d5   
3. Nc3

B16 - Caro-Kann Defence/Bronstein-Larsen variation
1. e4 c6   
2. d4 d5   
3. Nc3 de4   
4. Ne4 Nf6   
5. Nf6 gf6

B17 - Caro-Kann Defence with 4...Nd7
1. e4 c6   
2. d4 d5   
3. Nc3 de4   
4. Ne4 Nd7

B18 - Caro-Kann Defence classical variation 
1. e4 c6   
2. d4 d5   
3. Nc3 de4   
4. Ne4 Bf5

B19 
1. e4 c6   
2. d4 d5   
3. Nc3 de4   
4. Ne4 Bf5   
5. Ng3 Bg6   
6. h4 h6 
7. Nf3 Nd7