[Event "1985 US Open"]  [White "Roman Dzindzichashvili"]  [Black "Boris Spassky"]  [Result "0-1"]  [ECO "A10"]  [WhiteElo "2678"]  [BlackElo "2690"]  [Annotator "ATH"]  [PlyCount "66"]  [EventDate "1985.08.??"]  [EventType "swiss"]  [EventRounds "12"]  [EventCountry "USA"]  [SourceTitle "StarBase 4.56"]  [SourceDate "2004.11.04"]  [SourceVersion "1"]  [SourceVersionDate "2004.11.04"]  [SourceQuality "2"]   1. c4 b6 2. e4 Bb7 3. Nc3 e6 4. d3 c5 (4... d5 $5 5. cxd5 exd5 6. Nxd5 Bxd5 7.  exd5 Bb4+ 8. Bd2 Bxd2+ 9. Qxd2 Qxd5 10. Be2 Nc6 $11 {Van der Elburg-Dal Borgo,  Kemer 2007}) 5. g3 Nc6 (5... Ne7 $5) 6. Nge2 (6. Bg2 g6 7. Nge2 Bg7 $11) 6...  g6 $6 (6... h5 $1 $11 {according to Stockfish}) 7. d4 cxd4 8. Nxd4 Nxd4 9. Qxd4  Nf6 10. Bg2 (10. Bg5 $14) 10... Bc5 $6 (10... Bg7 11. Bg5 $14) 11. Qd1 O-O 12.  O-O (12. Bh6 $16) 12... Nh5 $6 (12... Qc7 13. Bh6 Rfc8 14. Rc1 $14) 13. Bh6 Ng7  14. Qd2 $6 (14. a3 $16) 14... f6 (14... Bc6 $5 $14) 15. Rad1 (15. Rab1 $5)  15... Rf7 (15... Bc6 $5 $14) 16. Nb5 (16. a3 a5 17. Be3 $14) 16... Qc8 17. b3  Qc6 (17... a6 18. Nd6 Bxd6 19. Qxd6 $14) 18. Nd4 $2 (18. Nd6 $14) 18... Bxd4  19. Qxd4 $2 (19. Bxg7 $1 Bc5 20. Bh6 $11) 19... Nf5 $1 20. Qd2 g5 21. Bxg5 fxg5  22. Qxg5+ Rg7 (22... Ng7 $1 $17 {is slightly stronger}) 23. Qh5 Rf8 24. Rd2 Ne7  (24... e5 $1 $19) 25. Rfd1 (25. f4 $5 Qc7 $17) 25... Ng6 26. Qe2 (26. Rd6 Qc7  $19) 26... Nf4 $1 27. gxf4 Qxe4 28. Qxe4 Bxe4 29. f3 Bxf3 30. Rf1 ({Stockfish  prefers} 30. Re1 {slightly but it really doesn't matter where White puts his  rook}) 30... Rxf4 31. Rff2 (31. Rb2 e5 $19) 31... Rf5 ({The immediate} 31... e5  {is even stronger}) 32. h4 Bc6 33. Rfe2 Rf4 0-1