[Event "Piatigorsky Cup 1st"] [Site "Los Angeles"] [Date "1963.07.02"] [Round "1"] [White "Olafsson, Fridrik"] [Black "Gligoric, Svetozar"] [Result "1/2-1/2"] [BlackElo "2420"] [EventType "tourn"] [EventRounds "14"] [EventCountry "USA"] [ECO "B90"] [Opening "Sicilian: Najdorf"] 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.f4 Qc7 7.Bd3 (7.Qf3 g6 8.h3 Bg7 9.Be3 e5? 10.fxe5 dxe5 11.Bh6 {Ivanchuk,V-Kasparov,G/Amsterdam/ 1994/}) 7...g6 8.Nf3 Nbd7 9.O-O Bg7 10.Qe1 e5 (10...O-O!? 11.Kh1 e6 12.Qh4 Nc5 13.Be3 b5 $13) 11.a4 (11.Qh4 h6 12.fxe5 dxe5 13.Kh1 b5 14.Bd2 $14 {Andersson,U-Tatai,S/Siegen/1970/ Inf 10/537/}) 11...O-O 12.Kh1 b6 13.Qh4 Bb7 14.Bd2 (14.fxe5 dxe5 15.Bh6 Nh5 $13) 14...Rae8 15.Rae1 Qc5 16.fxe5 dxe5 17.b3! Nh5 18.Bc4 Ndf6 19.Qf2! Qc7 20.Qg1 {>>e3} (20.Bc1 Nd7 21.Ba3 Nc5 22.a5 $16) 20...Rb8 21.Be3 Ba8 22.Bc1 Rfd8 23.Ng5 Rd7 24.Rd1 h6!? (24...Rbd8 25.Rxd7 Rxd7 26.Be3 $16) 25.Rxd7 Qxd7 26.Nxf7 Kh7 27.Nxe5 $16 Qe8 28.Nf3 Nxe4 29.Nxe4 Qxe4 30.Bd3 (30.Qe3!? Qxc2 31.Bxa6 Rf8 32.Bd3 $16) (30.Bxa6 Rf8 31.Bd3 Qg4 32.Be3) 30...Qg4 31.Qe3 Rf8 32.Ba3 Rf4 { 33.>>d6} (32...Nf4 33.g3 $8 Nh5 (33...Nxd3? 34.Bxf8 Ne5 35.Bxg7 Nxf3 36.Qxh6+ $18) 34.Bxf8 Nxg3+ 35.hxg3 Qh3+ 36.Kg1 Qxg3+ 37.Kh1 Qh3+ $10) {#d} 1/2-1/2

[Event "Piatigorsky Cup 1st"] [Site "Los Angeles"] [Date "1963.07.03"] [Round "2"] [White "Olafsson, Fridrik"] [Black "Najdorf, Miguel"] [Result "1/2-1/2"] [EventType "tourn"] [EventRounds "14"] [EventCountry "USA"] [ECO "A15"] [Opening "English: Anglo-Indian"] 1. c4 Nf6 2. d4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 Be4 10. Bf4 c6 11. Rac1 Na6 12. Rfd1 f5 13. Ne5 (13. Bf1 $6 Nb4 14. Qb3 Bxf3 $10) (13. a3 Nc7 {Najdorf,M-Reshevsky,S/Los Angeles/1963/}) 13... Bxg2 14. Kxg2 g5 15. Bd2 Qe8 {/\d6} 16. Qf3 Rc8 {#d} 1/2-1/2

[Event "Piatigorsky Cup 1st"] [Site "Los Angeles"] [Date "1963.07.07"] [Round "3"] [White "Reshevsky, Samuel Herman"] [Black "Olafsson, Fridrik"] [Result "1/2-1/2"] [EventType "tourn"] [EventRounds "14"] [EventCountry "USA"] [ECO "A15"] [Opening "English: Anglo-Indian"] 1. c4 Nf6 2. d4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. a3 (6. d5 b5 7. dxe6 fxe6 8. cxb5 a6 9. Nge2 d5 10. O-O e5 11. a3 axb5 12. Bxb5 $14 {Korchnoi,V-Karpov,A/ Baguio/1978/ Inf 26/653/}) 6... cxd4 (6... Bxc3+ 7. bxc3 d5 $13) 7. axb4 (7. exd4 Be7 8. Nf3 $14) 7... dxc3 8. bxc3 d5 9. Qc2 dxc4 10. Bxc4 Qc7 11. Bd3 e5 12. e4 Be6 13. Nf3 Rc8 14. Bb2 Nc6 (14... Nbd7 $5 15. O-O Nb6 16. c4 (16. Ra5 Nfd7 17. Rfa1 a6 18. b5 Nc4 $15) 16... Nxc4 17. Rfc1 Nxb2 $15) 15. Qe2 Ne7 16. O-O Ng6 17. g3 Bc4 18. Bxc4 Qxc4 19. Qxc4 Rxc4 20. Nd2 $10 Rc7 21. Rfd1 Rd7 22. Kf1 h5 23. f3 Rad8 24. Ke2 b6 25. h4 Ne8 26. Nc4 Rxd1 27. Rxd1 Rxd1 28. Kxd1 f6 29. Ke2 Kf7 30. Kd3 Ke6 31. Ne3 Ne7 $6 (31... b5 32. c4 a6 33. Nd5 Ne7 $10) 32. c4 Nd6 33. Nd5 $14 Nc6 34. Bc3 Kd7 35. b5 Nd8 36. f4 Ne6 37. fxe5 Nc5+ 38. Kc2 fxe5 39. Bxe5 Nxc4 40. Bxg7 Nxe4 {#d} 1/2-1/2

[Event "Piatigorsky Cup 1st"] [Site "Los Angeles"] [Date "1963.07.08"] [Round "4"] [White "Olafsson, Fridrik"] [Black "Keres, Paul"] [Result "0-1"] [EventType "tourn"] [EventRounds "14"] [EventCountry "USA"] [ECO "A07"] [Opening "Reti: KIA, Keres Variation"] 1. Nf3 d5 2. g3 Bg4 3. Bg2 Nd7 4. c4 c6 5. cxd5 cxd5 6. O-O Ngf6 7. Nc3 e6 8. h3 Bh5 9. d3 (9. d4 $10) 9... Bc5 10. e4 O-O 11. Bf4 Nb6 $6 (11... dxe4 12. dxe4 e5 13. Bg5 (13. Bxe5 $2 Nxe5 14. Qxd8 Nxf3+ 15. Bxf3 Raxd8 $19) 13... Bxf3 14. Qxf3 h6 $10) 12. Qe2 Rc8 13. Rac1 a6 14. g4 Bg6 15. Bg3 $14 Nfd7 16. Nh4 Re8 17. Kh1 {/\f4} d4 18. Nb1 e5 19. Nf5 f6 20. f4 Bxf5 (20... Bf8 21. Nd2 Na4 22. Nf3 $14 Qb6 $2 23. Rxc8 Rxc8 24. fxe5 fxe5 25. Nxe5 Nxe5 26. Bxe5 $40) 21. gxf5 Bd6 22. fxe5 Bxe5 23. Bf2 Qe7 $6 (23... Na4 24. Rc2 (24. Rxc8 $6 Qxc8 25. Qd2 Qc6 26. Bf3 (26. Rc1 Qb5 27. Rc2 Ndc5 $40) 26... Qb5 (26... Rc8 27. Bd1 $40 ) 27. Bd1 Ndc5 $40) 24... Qb6 25. Rfc1 $13) 24. Nd2 Qb4 25. Nf3 Na4 26. Rc2 Rc5 27. Rxc5 Ndxc5 28. Rc1 $16 b6 29. Rc2 Nb7 30. Nxe5 fxe5 31. Rc7 Nd8 32. Qg4 ( 32. f6 Nf7 33. Qg4 Qf8 34. Be1 a5 35. b4 $40) 32... Qf8 33. Bh4 Nc5 34. f6 $6 ( 34. b4 $1 Nxd3 (34... Na4 35. Bf3 $16) 35. Bf1 $18) 34... Nf7 35. Re7 Rxe7 36. fxe7 Qe8 37. Bf6 g6 38. Bf1 a5 39. Be2 Nd6 $2 40. Qg5 (40. Bxe5 Qxe7 41. Bxd4 $18) 40... Nf7 41. Qc1 Nd6 42. Qg5 (42. Bxe5 Qxe7 43. Bxd4 Ncxe4 $13) 42... Nf7 43. Qg4 Qc6 44. Qg3 Ne6 45. Bd1 a4 46. Qf2 (46. Bxe5 Nxe5 47. Qxe5 Kf7 48. Qd5 Qxd5 49. exd5 Ng7 50. d6 Nf5 $10) 46... b5 47. Qc2 Qd7 48. Qd2 (48. Bg4 h5 49. Bxe6 (49. Qc7 Qxc7 50. e8=Q+ Nf8 $10) 49... Qxe6 50. Kg2 Nd6 51. Bg5 Qxa2 52. Kg3 $44) 48... Nc7 49. Bg4 Qc6 50. Qe1 $2 Ne8 $2 (50... Qxf6) 51. Bh4 h5 52. Be2 Qe6 53. Qg3 Kh7 54. a3 Ng7 55. Kh2 Kh6 56. Qf3 g5 57. Be1 (57. e8=Q Qxe8 ( 57... Nxe8 58. Qxh5+ Kg7 59. Bxg5) 58. Qf6+ Kh7 59. Bxg5 Nxg5 60. Qxg5 $10) 57... Qxe7 58. Bb4 Qe6 59. Bf8 Kh7 60. Qf1 (60. Bxg7 Kxg7 61. Qxh5 Qb3 $17) 60... Qg6 61. Qf3 h4 62. Qf2 Kg8 63. Be7 $2 (63. Bb4 Nh5 64. Bg4 $10 Nf4 65. Qc2) 63... Qe6 64. Bb4 Qb3 65. Bf1 Ne6 66. Qf5 Nf4 67. Qc8+ Kh7 68. Qf5+ Kg7 69. Be7 Qe6 $1 70. Qxe6 Nxe6 $19 71. Be2 Nh6 72. Bd1 Kf7 73. Bb4 Nf4 74. Bd2 Kf6 75. Bxf4 gxf4 76. Kg2 Nf7 77. Kf3 Kg5 78. Kf2 Nd6 79. Bg4 Kf6 80. Bd7 Ke7 81. Bc6 Kd8 82. Kf3 Kc7 83. Bd5 Kb6 84. Kg4 Kc5 85. Kxh4 Nc4 86. Kg4 Ne3+ {#R} 0-1

[Event "Piatigorsky Cup 1st"] [Site "Los Angeles"] [Date "1963.07.10"] [Round "5"] [White "Petrosian, Tigran V"] [Black "Olafsson, Fridrik"] [Result "1/2-1/2"] [WhiteElo "2379"] [EventType "tourn"] [EventRounds "14"] [EventCountry "USA"] [ECO "E10"] [Opening "Neo-Indian: 3.Nf3"] 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. e3 Nc6 6. a3 cxd4 7. exd4 Be7 8. c5 Ne4 9. Qc2 (9. Bb5 Nxc3 10. bxc3 O-O 11. Bxc6 bxc6 12. Ne5 Bd7 13. O-O f6 14. Nxd7 Qxd7 15. Bf4 $14 {Alburt,L-Dlugy,M/Philadelphia/1982/ Inf 34/496/}) 9... Nxc3 10. Qxc3 O-O (10... a5 $5 11. Bb5 O-O 12. b3 Bd7 13. O-O b6 $10) 11. b4 a6 12. Bf4 f6 13. Rd1 $14 Kh8 14. Be2 (14. Bd3 $6 e5 15. dxe5 fxe5 16. Bxe5 Rxf3 17. gxf3 d4 18. Bxd4 Qxd4 $132) (14. Bg3 $5 Bd7 15. Bd3) 14... Bd7 15. O-O g5 16. Bc1 (16. Bg3 $6 h5 17. h4 g4 18. Ne1 f5 $15) 16... b5 17. Ne1 f5 18. f4 g4 19. Be3 Bf6 20. Nc2 $6 (20. Nd3 $5 a5 21. Ne5 axb4 22. axb4 Nxe5 23. fxe5 $14) 20... Qc7 21. Ra1 Ne7 22. Bd2 Rfb8 23. Rfb1 Bg7 $10 24. Ra2 Ng8 25. Na1 Nf6 26. Nb3 Ne4 27. Qe3 Bf6 28. Bd3 Bc6 29. Na5 Rc8 30. Be1 Qg7 31. Nb3 h5 32. Rd1 Qh6 33. Na5 Qg7 (33... e5 $2 34. dxe5 Bxe5 35. Bxe4 dxe4 36. Bc3 $18) 34. Bxe4 fxe4 (34... dxe4 $2 35. Nxc6 Rxc6 36. d5 exd5 37. Rxd5 $16) 35. Nxc6 Rxc6 36. a4 Rb8 37. Bc3 Kh7 38. Rf1 Kg6 39. axb5 Rxb5 {#d} 1/2-1/2

[Event "Piatigorsky Cup 1st"] [Site "Los Angeles"] [Date "1963.07.11"] [Round "6"] [White "Olafsson, Fridrik"] [Black "Benko, Pal C"] [Result "1-0"] [EventType "tourn"] [EventRounds "14"] [EventCountry "USA"] [ECO "B32"] [Opening "Sicilian: Open, 2...Nc6"] 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e6 5. Nc3 Qc7 6. Be3 a6 7. a3 $6 Nf6 8. Be2 Bd6 $6 (8... Be7 9. f4 d6 10. O-O O-O $10) 9. Qd2 Nxd4 10. Bxd4 Bf4 11. Qd3 e5 12. Be3 Bxe3 13. fxe3 $5 (13. Qxe3 d6 14. O-O O-O $14 {Johansson-Doda,Z/ Halle/1963/}) 13... d6 14. O-O-O Ke7 15. g4 h6 16. h4 Be6 17. g5 hxg5 18. hxg5 Nd7 19. g6 Rxh1 (19... fxg6 20. Rhg1 Rh6 21. Bg4 $44) 20. Rxh1 Nf6 21. gxf7 Rf8 22. b3 $6 (22. Nd5+ Bxd5 23. exd5 e4 24. Qd4 Qc5 $10) 22... Rc8 (22... Rxf7 $10 ) 23. Kb2 (23. Nd5+ $6 Bxd5 24. exd5 e4 25. Qd2 Qc5 $17) 23... Bxf7 24. Rg1 g6 25. Bg4 Rh8 $2 (25... Nxg4 26. Rxg4 Qd7 27. Rg3 Kf6 $10) 26. Nd5+ Bxd5 27. exd5 e4 28. Qd2 Kf8 29. Be6 Rh6 30. Qd4 Kg7 31. Rf1 g5 32. Rg1 Rh5 33. Bf5 Qe7 34. Bg4 Rh4 35. Be6 Kg6 36. Qc3 $14 Qg7 $6 (36... Rh8) 37. Kb1 Rh2 $2 38. Qc8 $16 Rf2 (38... Qe7 39. Bf5+ $18) 39. Qd8 Qh7 40. Qxd6 Qh2 41. Qxh2 Rxh2 42. Rd1 g4 43. d6 Rh8 44. Kb2 Kg5 45. Kc3 Rd8 46. d7 g3 47. Kd2 Ng4 48. Ke2 Nf2 49. Rd5+ Kh4 50. Kf1 Nh3 51. Kg2 Ng5 52. Bf5 Nf3 53. Bxe4 Ne1+ 54. Kf1 g2+ 55. Bxg2 Nxc2 56. Kf2 Nxa3 57. Bf3 {#r} 1-0

[Event "Piatigorsky Cup 1st"] [Site "Los Angeles"] [Date "1963.07.14"] [Round "7"] [White "Panno, Oscar"] [Black "Olafsson, Fridrik"] [Result "1/2-1/2"] [EventType "tourn"] [EventRounds "14"] [EventCountry "USA"] [ECO "D25"] [Opening "QGA: Janowski-Larsen Variation"] 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 Bg4 5. Bxc4 e6 6. Qb3 Bxf3 7. gxf3 Nbd7 8. Nc3 Be7 (8... Nb6 9. Be2 Be7 10. Bd2 O-O 11. Rd1 c5 12. dxc5 Bxc5 13. O-O Rc8 $10 {Gligoric,S-Smyslov,V/Hastings/1962/}) 9. f4 O-O $6 10. Be2 (10. Qxb7 $5 c5 11. dxc5 Nxc5 12. Qf3 Nd3+ 13. Ke2 Nxc1+ 14. Raxc1 $14) 10... c5 11. d5 c4 $6 ( 11... exd5 12. Nxd5 Nxd5 13. Qxd5 Nb6 (13... Bf6 14. O-O) 14. Qxd8 Rfxd8 15. Bf3 Rd7 $15) 12. Bxc4 exd5 (12... Nc5 13. Qd1 exd5 14. Nxd5 Nxd5 15. Qxd5 $14) 13. Nxd5 Nxd5 14. Bxd5 Nc5 15. Qc4 Qd7 16. e4 Rac8 17. Be3 Qg4 18. h3 Qg2 19. e5 $6 (19. Ke2 $5 Qg6 (19... Ne6 20. Qd3 $16) 20. Rag1 Qh5+ 21. Rg4 $14) 19... Qg6 20. Rd1 Rfd8 $44 21. a4 Kf8 {#d} 1/2-1/2

[Event "Piatigorsky Cup 1st"] [Site "Los Angeles"] [Date "1963.07.15"] [Round "8"] [White "Gligoric, Svetozar"] [Black "Olafsson, Fridrik"] [Result "0-1"] [WhiteElo "2420"] [EventType "tourn"] [EventRounds "14"] [EventCountry "USA"] [ECO "E60"] [Opening "King's Indian: 3.g3"] 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 d5 5. cxd5 Nxd5 6. Nf3 O-O 7. O-O c5 (7... Nb6 8. Nc3 Nc6 9. e3 $13) 8. dxc5 Na6 9. Ng5 Ndb4 10. Nc3 h6 11. Nf3 Qxd1 12. Rxd1 Be6 13. Ne1 $6 (13. Be3 Nc2 14. Rac1 Nxe3 15. fxe3 Nxc5 16. b4 Bxc3 17. Rxc3 Ne4 18. Rc7 $14 {Ogaard,L-Olafsson,F/Reykjavik/1974/ Inf 18/599/}) 13... Nxc5 14. Be3 Rac8 15. Nb5 (15. Bd4 a5 $10 {Panno,O-Szabo,L/Amsterdam/1956/}) 15... Na4 16. Nxa7 Rcd8 $44 17. a3 Nd5 $6 (17... Na2 $5 $44) 18. Bd4 Nxb2 19. Bxg7 Kxg7 20. Rdb1 Nc4 21. Rxb7 (21. Nb5 $10) 21... Nc3 22. e3 $2 (22. Nc6 $1 $8 Nxe2+ 23. Kf1 Rd2 24. Nf3 Rc2 25. Rxe7 $14) 22... Na5 23. Rc7 Nb3 24. Rxc3 Nxa1 $17 25. Nd3 Nb3 26. h4 Na5 27. Nf4 Bc4 28. Nc6 Rd1+ 29. Kh2 Nxc6 30. Bxc6 (30. Rxc4 Ne5 31. Rc2 Ng4+ 32. Kh3 h5 $19) 30... Ba6 31. Bf3 Rd2 32. Kg2 Rc8 33. Rxc8 Bxc8 34. Nd5 e6 35. Nb4 Bd7 36. g4 Rb2 $6 (36... g5 $1 $19) 37. Nd3 Ra2 38. Ne5 Bb5 39. g5 h5 (39... f6 $5 40. gxf6+ Kxf6 41. Ng4+ Kg7 $17) 40. Be4 Rxa3 41. Kg3 Rb3 42. Bc2 Rb2 43. Be4 Ba6 44. Nd7 Bb7 45. Bd3 Rd2 46. Ne5 Rd1 47. f3 Ra1 48. e4 Kf8 49. Nd7+ Ke7 50. Ne5 Ba6 51. Bxa6 Rxa6 52. Kf2 Ra2+ 53. Kg3 Rc2 54. f4 Re2 55. Kf3 Re1 56. Nc6+ Kf8 57. Ne5 Kg7 58. Nd3 Ra1 59. Ne5 Ra3+ 60. Kf2 Kf8 61. Nf3 Ke7 62. Ke2 Rb3 (62... Kd6 63. Ne5 Kc5 $1 (63... Ra7 64. Ke3 Kc5 65. Nd3+ Kc4 66. Ne5+ Kc3 67. f5) 64. Nxf7 Kd4 $19) 63. Kf2 Rb2+ 64. Ke3 Rc2 65. Ne5 Rh2 66. Nf3 Rh3 67. Ke2 Kd6 68. Ne5 Rxh4 69. Nxf7+ Kc5 70. Ne5 Rh2+ 71. Kf3 Rh3+ 72. Kg2 (72. Kf2 Kd4 $19) 72... Re3 73. Nxg6 Rxe4 74. Kg3 Re1 75. Ne5 Kd6 76. Nf7+ (76. g6 Ke7 77. Kh4 Rh1+ 78. Kg5 h4 79. Nf3 h3 80. Kh6 Rg1 $1 $19) 76... Ke7 77. Ne5 Kf8 78. Kh4 Rh1+ 79. Kg3 Kg7 80. Nf3 Rf1 81. Ne5 Re1 82. Kf3 Ra1 83. Kg3 Ra4 84. Nf3 Rb4 85. Ne5 h4+ 86. Kxh4 Rxf4+ 87. Kh5 Re4 88. Nd3 Kf7 89. Nf2 Re3 90. Kg4 Kg6 91. Kf4 Ra3 92. Ke5 Rf3 93. Ne4 Re3 94. Kf4 Re1 95. Ke5 Kf7 96. Kf4 Rf1+ 97. Ke5 Rf5+ 98. Kd4 Kg6 99. Ke3 Ra5 100. Kf4 e5+ {#R} 0-1

[Event "Piatigorsky Cup 1st"] [Site "Los Angeles"] [Date "1963.07.17"] [Round "9"] [White "Najdorf, Miguel"] [Black "Olafsson, Fridrik"] [Result "0-1"] [EventType "tourn"] [EventRounds "14"] [EventCountry "USA"] [ECO "E41"] [Opening "Nimzo-Indian: 4.e3 c5 5.Bd3"] 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. Nf3 d5 7. O-O dxc4 8. Bxc4 b6 9. Qe2 (9. a3 Bxc3 10. bxc3 Qc7 11. Bd3 Bb7 12. Re1 $14) 9... Bb7 10. Rd1 Qc8 11. Nb5 (11. Bd2 $5) 11... cxd4 12. Nbxd4 Nc6 13. a3 Nxd4 14. Nxd4 Be7 15. b4 $6 (15. f3 Rd8 16. Bd2 e5 17. Nb5 a6 18. Nc3 b5 $10 {Reshevsky,S-Mednis,E/ USA/1964/}) 15... a5 16. b5 (16. bxa5 Rxa5 17. Bb2 Rg5 18. f3 e5 $40) 16... e5 17. Nf3 Bxf3 18. gxf3 e4 19. fxe4 Nxe4 20. Bb2 Bf6 21. Bxf6 Nxf6 $15 22. Rd6 ( 22. Bd5 $5 Nxd5 23. Rxd5 Qc3 24. Qd1 Rac8 25. Qd4 $15) 22... Rb8 23. Rc6 Qf5 24. Rd1 Rbd8 25. Bd3 (25. Rxb6 Ne4 26. Rxd8 Rxd8 $17) 25... Qh3 26. f3 Rfe8 27. Bc2 Rxd1+ 28. Bxd1 Nd5 29. Rd6 Nc3 30. Qd3 $6 (30. Qc4 $5 Nxd1 31. Qc6 $1 Rc8 32. Rxd1 $15) 30... Nxd1 31. Qxd1 (31. Rd8 Qe6 32. e4 Qg6+ (32... Nb2 $2 33. Qd4 $15) 33. Kf1 Ne3+ 34. Ke2 Qg2+ 35. Ke1 (35. Kxe3 $2 Qg5+ $19) 35... Qg1+ 36. Ke2 Qf1+ $1 37. Kxe3 Qe1+ 38. Kf4 Qh4+ $19) 31... Qf5 32. Rd5 (32. Rd8 $4 Qg5+ $19) 32... Qf6 33. e4 h6 $17 34. Kh1 Rc8 35. Rd6 Qg5 36. Rc6 Rd8 37. Qg1 Qxb5 38. Rxb6 Qe2 39. Rb1 Qxf3+ 40. Qg2 Rd1+ 41. Rxd1 Qxd1+ {#R} 0-1

[Event "Piatigorsky Cup 1st"] [Site "Los Angeles"] [Date "1963.07.18"] [Round "10"] [White "Olafsson, Fridrik"] [Black "Reshevsky, Samuel Herman"] [Result "1-0"] [EventType "tourn"] [EventRounds "14"] [EventCountry "USA"] [ECO "E60"] [Opening "King's Indian: 3.g3"] 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nf3 d6 6. O-O Nbd7 7. Qc2 e5 8. Rd1 Re8 9. e4 c6 10. Nc3 exd4 (10... Qe7 11. d5 (11. b3 exd4 12. Nxd4 Nc5 13. f3 a5 14. Bb2 Qc7 $13) 11... c5 12. a3 Rf8 13. b4 Ne8 $13) 11. Nxd4 a5 12. h3 (12. b3 Nc5 13. Bf4 Ng4 14. h3 Ne5 15. Be3 Qe7 16. f4 $14 {Reshevsky,S-Evans,L/Dallas/ 1957/}) 12... Qe7 13. Bf4 Rd8 (13... Nc5 $2 14. Ndb5 cxb5 15. Bxd6 $16) 14. Rd2 Nc5 15. Rad1 Ne8 16. Be3 (16. b3 $2 Bxd4 17. Rxd4 Ne6 $15) 16... Bd7 (16... a4 $2 17. Nxc6 bxc6 18. Bxc5) 17. Re2 Nc7 18. f4 Rac8 19. Bf2 $16 Be8 20. Kh2 Qf8 21. Qd2 N7a6 22. Nf3 f5 $6 (22... Qe7 23. Bd4 Bf8 $16) 23. Bd4 fxe4 24. Bxg7 Qxg7 25. Nxe4 Nxe4 26. Rxe4 $16 {Xa5} d5 27. Rd4 Nb4 28. Ng5 Bf7 29. Nxf7 Qxf7 30. a3 c5 31. Rxd5 Nxd5 32. Bxd5 Rxd5 33. cxd5 Re8 34. d6 Qd7 35. g4 b6 36. Qd5+ Kg7 37. Rd2 Re6 38. Qxe6 {#r} 1-0

[Event "Piatigorsky Cup 1st"] [Site "Los Angeles"] [Date "1963.07.21"] [Round "11"] [White "Benko, Pal C"] [Black "Olafsson, Fridrik"] [Result "1-0"] [EventType "tourn"] [EventRounds "14"] [EventCountry "USA"] [ECO "A15"] [Opening "English: Anglo-Indian"] 1. c4 Nf6 2. d4 e6 3. Nf3 b6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. Na3 O-O 8. Bg2 c6 9. O-O d6 (9... d5 10. Ne5 Nfd7 11. Nxd7 Nxd7 12. Rac1 $14 {Keene, R-Miles,A/1982/Inf 34/628/}) 10. Rfd1 Nbd7 11. Rac1 Qe7 12. Nc2 Rac8 (12... Bxc4 13. Nb4 Bd5 14. Nxc6 Bxc6 15. Rxc6 Rac8 16. Rdc1 Rxc6 17. Rxc6 Nb8 18. Rc2 $16) 13. Qb4 Bb7 14. Qa3 Rc7 15. Ne3 (15. Nh4 $5 g6 16. e4 g5 $2 17. e5 $1 $16) 15... g6 16. Ne5 c5 17. Bxb7 dxe5 (17... Rxb7 $2 18. Nc6 Qe8 19. Nxa7 $16) 18. Bg2 exd4 19. Rxd4 Ne5 20. Rdd1 {/\20...Rd7 21.f4!+/=} (20. Rd2 Rd8 21. Rcd1 Rcd7 $10) 20... Nc6 21. Bxc6 Rxc6 22. Rd3 Rd6 23. Rcd1 Rxd3 24. Qxd3 Rc8 25. f3 (25. h3 Kf8 26. Ng4 Nxg4 27. hxg4 $14) 25... Kf8 26. Kf2 Ke8 27. Qa3 Rc7 28. Qc3 Rd7 29. Rxd7 Kxd7 $10 30. Qe5 Qd8 (30... Kc8 31. Nd5 Nxd5 32. cxd5 $10) 31. g4 h6 32. h4 Ne8 33. g5 hxg5 34. hxg5 Nd6 (34... Qc7 35. Ng4 Qd6 $10) 35. Qf4 Nf5 $6 (35... Qh8 $1 36. Ng4 Qxb2 37. Ne5+ Ke8 38. Nc6 (38. Nxg6 Qd4+ 39. Qxd4 cxd4 40. Ne5 Ke7 $10) 38... Kd7) 36. Nxf5 exf5 37. e4 Ke6 $2 (37... Qh8 38. Qd2+ Kc7 39. exf5 Qh2+ 40. Ke1 Qe5+ $10) 38. exf5+ $18 gxf5 39. Qe3+ Kd7 40. Qd3+ Ke8 41. Qxd8+ Kxd8 42. Kg3 {42...Ke7 43.Kf4 Ke6 44.a3! a6 45.a4 a5 46.b3 +-} {#r} 1-0

[Event "Piatigorsky Cup 1st"] [Site "Los Angeles"] [Date "1963.07.22"] [Round "12"] [White "Olafsson, Fridrik"] [Black "Petrosian, Tigran V"] [Result "1/2-1/2"] [BlackElo "2379"] [EventType "tourn"] [EventRounds "14"] [EventCountry "USA"] [ECO "E21"] [Opening "Nimzo-Indian: Three Knights"] 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 c5 5. e3 O-O 6. Bd3 d5 7. O-O cxd4 8. exd4 dxc4 9. Bxc4 Nc6 10. Bg5 (10. a3 Be7 11. Re1 a6 12. Ba2 $14) 10... Be7 11. Re1 a6 12. a4 Bd7 $10 13. Qe2 Nb4 14. Ne5 Be8 (14... Bc6 $6 15. Nxf7 Rxf7 16. Qxe6 Nbd5 (16... Nfd5 17. Bxe7 Qxe7 18. Qxe7 $16) 17. Bxf6) 15. Rad1 Rc8 16. Bb3 Kh8 17. Qf3 Bc6 18. Qh3 Nfd5 (18... Bd5 $5 19. Nxd5 Nfxd5 $10) 19. Bxe7 Qxe7 20. Qg3 Nf6 21. Qh4 Bd5 22. Nxd5 Nbxd5 23. Rd3 Rc7 24. Rf3 Rd8 25. g4 g5 (25... g5 26. Qxg5 Rg8 27. Qh4 (27. Qd2 Nxg4 28. Nxf7+ Qxf7 29. Rxf7 Rxf7 30. Bxd5 Nxf2+ 31. Bg2 Nh3+ 32. Kh1 Nf2+ $10) 27... Nxg4 28. Nxf7+ (28. Qxe7 Nxe5+ 29. Rg3 Rxg3+ 30. fxg3 (30. hxg3 $2 Nf3+ $19) 30... Nxe7 $15) 28... Qxf7 29. Rxf7 Rxf7 30. Kf1 Nxf2 31. Qxf2 Rxf2+ 32. Kxf2 $14) {#d} 1/2-1/2

[Event "Piatigorsky Cup 1st"] [Site "Los Angeles"] [Date "1963.07.24"] [Round "13"] [White "Keres, Paul"] [Black "Olafsson, Fridrik"] [Result "1-0"] [EventType "tourn"] [EventRounds "14"] [EventCountry "USA"] [ECO "D81"] [Opening "Gruenfeld: Early Russian Variation"] 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Qb3 c6 (4... dxc4 5. Qxc4 Bg7 6. e4 O-O $13) 5. cxd5 cxd5 6. Nf3 Nc6 (6... Bg7 7. Bg5 e6 8. e3 O-O 9. Bd3 Nc6 $13) 7. Bg5 Na5 8. Qd1 Bg7 9. e3 Ne4 $2 (9... O-O 10. Ne5 Be6 11. Bd3 Nd7 $10) 10. Nxe4 dxe4 11. Nd2 Qd5 12. Bh4 $16 Nc6 13. Bc4 Qf5 14. Qc2 O-O 15. Qxe4 Qh5 16. Bg3 e5 17. d5 Bf5 (17... Nb4 $2 18. Be2 $18) 18. Qh4 Qxh4 19. Bxh4 Nb4 20. Ke2 b5 21. Bxb5 Nxd5 22. Bc6 Nb4 (22... Bd3+ 23. Kxd3 Nb4+ 24. Ke2 Nxc6 25. Rhc1 $16) 23. Bxa8 Bd3+ 24. Kf3 Rxa8 25. g4 $1 f5 26. gxf5 gxf5 27. Rac1 e4+ 28. Kg2 f4 29. exf4 Nd5 30. Rhe1 (30. Bg3 Bh6 31. Rhe1 Nxf4+ 32. Bxf4 Bxf4 $14) 30... Nxf4+ (30... Bxb2 31. Rc5 Nxf4+ 32. Kh1 Ng6 33. Bg5 Bd4 34. Rc7 Bxf2 35. Nxe4 $1 $18) 31. Kh1 Bxb2 32. Rc7 Re8 33. Rg1+ Ng6 34. Bg5 a5 35. h4 Kh8 36. h5 Nf8 37. Re7 Rxe7 38. Bxe7 $18 Ne6 39. Rg4 Ng7 40. Nxe4 Be2 41. Rf4 Nxh5 42. Rf5 a4 43. Kg1 h6 44. Ra5 Bd1 45. Bb4 Kh7 46. Nc3 Bxc3 47. Bxc3 Nf4 48. Bd2 Ne2+ 49. Kf1 Nd4 50. Rd5 Nc2 51. Rd7+ Kg6 52. Bxh6 {#r} 1-0

[Event "Piatigorsky Cup 1st"] [Site "Los Angeles"] [Date "1963.07.28"] [Round "14"] [White "Olafsson, Fridrik"] [Black "Panno, Oscar"] [Result "1/2-1/2"] [EventType "tourn"] [EventRounds "14"] [EventCountry "USA"] [ECO "C70"] [Opening "Spanish: 4.Ba4"] 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. h3 h6 10. d4 Re8 11. a4 (11. Nbd2 Bf8 12. Nf1 Bb7 13. Ng3) 11... Bb7 12. axb5 $6 (12. Nbd2 Bf8 13. Bc2 exd4 14. cxd4 Nb4) 12... axb5 13. Rxa8 Qxa8 $10 14. Na3 b4 15. Nc4 Bf8 16. d5 Na5 17. Nxa5 Qxa5 18. cxb4 Qxb4 19. Bd2 Qb6 20. Qc2 c6 21. dxc6 Bxc6 22. Bc4 Qb7 23. Bd3 Nd7 24. b4 d5 25. exd5 Bxd5 26. Be4 Bxe4 27. Rxe4 Nf6 28. Rxe5 Rxe5 29. Nxe5 Bxb4 {31.Qb2 Nd5 32.Nd3+-} {#d} 1/2-1/2