[Event "URS Cup"]
[Site "?"]
[Date "1972.??.??"]
[Round "4"]
[White "Mack, Peter (GER)"]
[Black "Stean, Michael F (ENG)"]
[Result "1/2-1/2"]
[ECO "D90"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. cxd5 Nxd5 6. Bd2 O-O 7. Rc1 Nc6 8. Nxd5 Qxd5 9. e3 e5 10. Bc4 Qd6 11. d5 Ne7 12. Qb3 a5 13. Bc3 Bd7 14. a4 Nc8 1/2-1/2