Dahlberg, Ivars vs Donaldson, John
Lone Pine Open · Round 1 · 1981.04.01 · 1/2-1/2 · B36 Sicilian Defense: Accelerated Dragon, Maróczy Bind
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PGN
[Event "Lone Pine Open"] [Site "Lone Pine open"] [Date "1981.04.01"] [Round "1"] [White "Dahlberg, Ivars"] [Black "Donaldson, John"] [Result "1/2-1/2"] [PlyCount "58"] [WhiteElo "2480"] [WhiteFideId "2001829"] [WhiteTitle "FM"] [BlackElo "2340"] [BlackFideId "2000709"] [BlackTitle "IM"] [ECO "B36l"] [Source "TheChessDog"] [SourceQuality "3"] [ImportDate "2026-01-06"] 1. c4 c5 2. Nf3 g6 3. d4 cxd4 4. Nxd4 Nc6 5. e4 Nf6 6. Nc3 d6 7. Be2 Nxd4 8. Qxd4 Bg7 9. Bg5 O-O 10. Qe3 a6 11. O-O Be6 12. Rac1 Qa5 13. b3 Rfc8 14. Na4 Rab8 15. c5 Qb4 16. Bf3 Re8 17. cxd6 exd6 18. Qb6 Qxb6 19. Nxb6 Nd7 20. Be3 Nxb6 21. Bxb6 Rbc8 22. g3 Bd7 23. Bg2 Rxc1 24. Rxc1 Bc6 25. Rd1 Bf8 26. f3 Be7 27. Bc7 d5 28. exd5 Bc5+ 29. Kh1 Bxd5 1/2-1/2