[Event "Olympiad-20 Final D"]
[Site "Skopje"]
[Date "1972.10.10"]
[Round "13"]
[White "Stull, Norbert"]
[Black "Calderon, D"]
[Result "1/2-1/2"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 c6 5. e3 Nbd7 6. Nf3 Be7 7. Qc2 O-O 8. Bd3 h6 9. Bh4 dxc4 10. Bxc4 Nd5 11. Bg3 b5 12. Bb3 Bb7 13. O-O a5 14. a4 b4 15. Ne4 N7f6 1/2-1/2