Round One, Game #1 Ulf Andersson vs Ribli, 1980 (E10) Queen's Pawn Game, 24 moves, 1/2-1/2 Round One, Game #2 Portisch vs Kavalek, 1980 (A04) Reti Opening, 26 moves, 1-0 Round One, Game #3 Spassky vs Huebner, 1980 (A07) King's Indian Attack, 63 moves, 1/2-1/2 Round One, Game #4 Hort vs Timman, 1980 (B07) Pirc, 20 moves, 1/2-1/2 Round One, Game #5 Tal vs Larsen, 1980 (B18) Caro-Kann, Classical, 37 moves, 1/2-1/2 Round One, Game #6 Sosonko vs Karpov, 1980  (E06) Catalan, Closed, 5.Nf3, 17 moves, 1/2-1/2 Round Two, Game #7 Ribli vs Karpov, 1980  (A25) English, 25 moves, 0-1 Round Two, Game #8 Larsen vs Sosonko, 1980 (E07) Catalan, Closed, 47 moves, 1/2-1/2 Round Two, Game #9 Timman vs Tal, 1980 (A29) English, Four Knights, Kingside Fianchetto, 30 moves, 1/2-1/2 Round Two, Game #10 Huebner vs Hort, 1980 (A00) Uncommon Opening, 15 moves, 1/2-1/2 Round Two, Game #11 Kavalek vs Spassky, 1980 (B80) Sicilian, Scheveningen, 16 moves, 1/2-1/2 Round Two, Game #12 Ulf Andersson vs Portisch, 1980 (D13) Queen's Gambit Declined Slav, Exchange Variation, 41 moves, 1/2-1/2 Round Three, Game #13 Portisch vs Ribli, 1980 (A17) English, 17 moves, 1/2-1/2 Round Three, Game #14 Spassky vs Ulf Andersson, 1980  (B80) Sicilian, Scheveningen, 31 moves, 1-0 Round Three, Game #15 Hort vs Kavalek, 1980 (D78) Neo-Grunfeld, 6.O-O c6, 25 moves, 1/2-1/2 Round Three, Game #16 Tal vs Huebner, 1980 (B92) Sicilian, Najdorf, Opocensky Variation, 16 moves, 1/2-1/2 Round Three, Game #17 Sosonko vs Timman, 1980 (D99) Grunfeld Defense, Smyslov, 16 moves, 1/2-1/2 Round Three, Game #18 Karpov vs Larsen, 1980  (C43) Petrov, Modern Attack, 66 moves, 0-1 Round Four, Game #19 Ribli vs Larsen, 1980 (A06) Reti Opening, 56 moves, 1-0 Round Four, Game #20 Timman vs Karpov, 1980  (C42) Petrov Defense, 36 moves, 0-1 Round Four, Game #21 Huebner vs Sosonko, 1980 (B64) Sicilian, Richter-Rauzer Attack, 48 moves, 1/2-1/2 Round Four, Game #22 Kavalek vs Tal, 1980 (C42) Petrov Defense, 18 moves, 1/2-1/2 Round Four, Game #23 Ulf Andersson vs Hort, 1980 (A04) Reti Opening, 35 moves, 1/2-1/2 Round Four, Game #24 Portisch vs Spassky, 1980 (A25) English, 27 moves, 1/2-1/2 Round Five, Game #25 Spassky vs Ribli, 1980  (E14) Queen's Indian, 27 moves, 1-0 Round Five, Game #26 Hort vs Portisch, 1980 (C45) Scotch Game, 41 moves, 1/2-1/2 Round Five, Game #27 Tal vs Ulf Andersson, 1980 (E42) Nimzo-Indian, 4.e3 c5, 5.Ne2 (Rubinstein), 59 moves, 1/2-1/2 Round Five, Game #28 Sosonko vs Kavalek, 1980 (E98) King's Indian, Orthodox, Taimanov, 9.Ne1, 22 moves, 1/2-1/2 Round Five, Game #29 Karpov vs Huebner, 1980  (D85) Grunfeld, 58 moves, 1-0 Round Five, Game #30 Larsen vs Timman, 1980 (A47) Queen's Indian, 55 moves, 0-1 Round Six, Game #31 Ribli vs Timman, 1980 (A35) English, Symmetrical, 23 moves, 1/2-1/2 Round Six, Game #32 Huebner vs Larsen, 1980 (B18) Caro-Kann, Classical, 81 moves, 0-1 Round Six, Game #33 Kavalek vs Karpov, 1980 (C93) Ruy Lopez, Closed, Smyslov Defense, 19 moves, 1/2-1/2 Round Six, Game #34 Ulf Andersson vs Sosonko, 1980 (E12) Queen's Indian, 14 moves, 1/2-1/2 Round Six, Game #35 Portisch vs Tal, 1980  (D58) Queen's Gambit Declined, Tartakower (Makagonov-Bondarevsky) Syst, 33 moves, 1-0 Round Six, Game #36 Spassky vs Hort, 1980 (E53) Nimzo-Indian, 4.e3, 14 moves, 1/2-1/2 Round Seven, Game #37 Hort vs Ribli, 1980 (E48) Nimzo-Indian, 4.e3 O-O 5.Bd3 d5, 30 moves, 1/2-1/2 Round Seven, Game #38 Tal vs Spassky, 1980  (C95) Ruy Lopez, Closed, Breyer, 44 moves, 1-0 Round Seven, Game #39 Sosonko vs Portisch, 1980 (E19) Queen's Indian, Old Main line, 9.Qxc3, 48 moves, 1/2-1/2 Round Seven, Game #40 Karpov vs Ulf Andersson, 1980  (E14) Queen's Indian, 81 moves, 1-0 Round Seven, Game #41 Larsen vs Kavalek, 1980 (A48) King's Indian, 32 moves, 1/2-1/2 Round Seven, Game #42 Timman vs Huebner, 1980 (E16) Queen's Indian, 38 moves, 1-0 Round Eight, Game #43 Ribli vs Huebner, 1980 (D15) Queen's Gambit Declined Slav, 24 moves, 1/2-1/2 Round Eight, Game #44 Kavalek vs Timman, 1980 (E88) King's Indian, Samisch, Orthodox, 7.d5 c6, 36 moves, 0-1 Round Eight, Game #45 Ulf Andersson vs Larsen, 1980 (D02) Queen's Pawn Game, 77 moves, 1/2-1/2 Round Eight, Game #46 Portisch vs Karpov, 1980  (E17) Queen's Indian, 25 moves, 1/2-1/2 Round Eight, Game #47 Spassky vs Sosonko, 1980 (E59) Nimzo-Indian, 4.e3, Main line, 19 moves, 1/2-1/2 Round Eight, Game #48 Hort vs Tal, 1980 (E15) Queen's Indian, 16 moves, 1/2-1/2 Round Nine, Game #49 Tal vs Ribli, 1980 (B90) Sicilian, Najdorf, 48 moves, 1/2-1/2 Round Nine, Game #50 Sosonko vs Hort, 1980 (D24) Queen's Gambit Accepted, 16 moves, 1/2-1/2 Round Nine, Game #51 Karpov vs Spassky, 1980  (B81) Sicilian, Scheveningen, Keres Attack, 35 moves, 1-0 Round Nine, Game #52 Larsen vs Portisch, 1980 (A46) Queen's Pawn Game, 65 moves, 0-1 Round Nine, Game #53 Timman vs Ulf Andersson, 1980 (D03) Torre Attack (Tartakower Variation), 40 moves, 1/2-1/2 Round Nine, Game #54 Huebner vs Kavalek, 1980 (C79) Ruy Lopez, Steinitz Defense Deferred, 35 moves, 1-0 Round Ten, Game #55 Ribli vs Kavalek, 1980 (D42) Queen's Gambit Declined, Semi-Tarrasch, 7.Bd3, 29 moves, 1/2-1/2 Round Ten, Game #56 Ulf Andersson vs Huebner, 1980 (A40) Queen's Pawn Game, 28 moves, 1/2-1/2 Round Ten, Game #57 Portisch vs Timman, 1980 (A34) English, Symmetrical, 23 moves, 1/2-1/2 Round Ten, Game #58 Spassky vs Larsen, 1980  (B18) Caro-Kann, Classical, 38 moves, 1-0 Round Ten, Game #59 Hort vs Karpov, 1980 (D59) Queen's Gambit Declined, Tartakower, 19 moves, 1/2-1/2 Round Ten, Game #60 Tal vs Sosonko, 1980 (A28) English, 20 moves, 1/2-1/2 Round Eleven, Game #61 Karpov vs Tal, 1980 (C84) Ruy Lopez, Closed, 21 moves, 1/2-1/2 Round Eleven, Game #62 Huebner vs Portisch, 1980 (C92) Ruy Lopez, Closed, 23 moves, 1/2-1/2 Round Eleven, Game #63 Kavalek vs Ulf Andersson, 1980 (B87) Sicilian, Fischer-Sozin with ...a6 and ...b5, 20 moves, 1/2-1/2 Round Eleven, Game #64 Timman vs Spassky, 1980 (B81) Sicilian, Scheveningen, Keres Attack, 57 moves, 1/2-1/2 Round Eleven, Game #65 Larsen vs Hort, 1980 (E21) Nimzo-Indian, Three Knights, 37 moves, 1-0 65 games