Cooper, Thomas L. vs Olthof, Rene
World Open Philadelphia, PA USA · Round 4 · 1990.01.01 · 1/2-1/2 · B45 Sicilian Defense: Four Knights Variation
Moves
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
23.
24.
25.
26.
27.
28.
29.
30.
31.
32.
PGN
[Event "World Open Philadelphia, PA USA"] [Site "World op Philadelphia, PA USA"] [Date "1990.01.01"] [Round "4"] [White "Cooper, Thomas L."] [Black "Olthof, Rene"] [Result "1/2-1/2"] [PlyCount "63"] [WhiteElo "2215"] [WhiteFideId "2008513"] [BlackElo "2275"] [BlackFideId "1001094"] [ECO "B45g"] [Source "Codekiddy"] [SourceQuality "3"] [ImportDate "2026-01-06"] 1. e4 c5 2. Nc3 e6 3. Nge2 Nc6 4. d4 cxd4 5. Nxd4 Nf6 6. g3 Qb6 7. Nb3 Bb4 8. Bg2 d5 9. exd5 Nxd5 10. O-O Nxc3 11. bxc3 Bxc3 12. Rb1 O-O 13. Qf3 Bf6 14. Be3 Qc7 15. Nc5 Rd8 16. Rb3 Na5 17. Rd3 Rb8 18. Ne4 Be7 19. Bxa7 Ra8 20. Be3 Nc4 21. Rc3 Ra3 22. Rxa3 Nxa3 23. Bg5 Nc4 24. Bxe7 Qxe7 25. Qb3 Qc7 26. Qc3 b5 27. g4 Qf4 28. h3 h6 29. Re1 Nd2 30. Nxd2 Qxd2 31. Qxd2 Rxd2 32. Rb1 1/2-1/2