Cobo Arteaga, Eldis VS Markland, Peter Richard 1972.12.??

[Event "Reggio Emilia-15 1972/73"]
[Site "Reggio Emilia"]
[Date "1972.12.??"]
[Round "?"]
[White "Cobo Arteaga, Eldis"]
[Black "Markland, Peter Richard"]
[Result "1/2-1/2"]

1. d4 Nf6 2. c4 c5 3. Nf3 g6 4. Nc3 cxd4 5. Nxd4 Bg7 6. e4 d6 7. Be2 O-O 8. O-O Nc6 9. Be3 Bd7 10. Kh1 a6 11. f4 Nxd4 12. Bxd4 Bc6 13. Qd3 b5 1/2-1/2