[Event "Olympiad-19 Preliminaries A"]
[Site "Siegen"]
[Date "1970.09.09"]
[Round "5"]
[White "Spassky, Boris Vasilievich"]
[Black "Kostro, Jerzy"]
[Result "1-0"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 h6 6. Bh4 dxc4 7. e4 g5 8. Bg3 b5 9. Be2 Bb7
10. O-O Nbd7 11. d5 cxd5 12. exd5 Qb6 13. dxe6 fxe6 14. Nd4 Bc5 15. Ndxb5 O-O 16. Bf3 Bxf3
17. Qxf3 Rac8 18. Rad1 Qc6 19. Qe2 Nd5 20. Nd6 Bxd6 21. Qxe6+ 1-0