Round 1 (November 13) Timman vs W Schmidt, 1983  (D84) Grunfeld, Grunfeld Gambit Accepted, 36 moves, 1-0 Round 1 (November 13) Andersson vs E E Miolo, 1983 (E91) King's Indian, 37 moves, 1-0 Round 1 (November 13) R Gunawan vs Romanishin, 1983 (E10) Queen's Pawn Game, 34 moves, 1-0 Round 1 (November 13) E Torre vs Adorjan, 1983  (E15) Queen's Indian, 12 moves, 1/2-1/2 Round 1 (November 13) E Handoko vs K Hulak, 1983 (B22) Sicilian, Alapin, 58 moves, 1/2-1/2 Round 1 (November 13) H Ardiansyah vs I Radulov, 1983 (D23) Queen's Gambit Accepted, 35 moves, 0-1 Round 1 (November 13) Lobron vs Kurajica, 1983 (B44) Sicilian, 44 moves, 0-1 Round 1 (November 13) Portisch vs Yusupov, 1983 (A25) English, 43 moves, 0-1 Round 1 (November 13) V Kovacevic vs Henley, 1983 (A46) Queen's Pawn Game, 25 moves, 1/2-1/2 Round 1 (November 13) Seirawan vs Tarjan, 1983 (D30) Queen's Gambit Declined, 41 moves, 0-1 Round 1 (November 13) Ljubojevic vs Adianto, 1983 (A07) King's Indian Attack, 54 moves, 1-0 Round 2 (November 14) W Schmidt vs Adianto, 1983  (D66) Queen's Gambit Declined, Orthodox Defense, Bd3 line, 45 moves, 1-0 Round 2 (November 14) Tarjan vs Ljubojevic, 1983  (E15) Queen's Indian, 33 moves, 0-1 Round 2 (November 14) Henley vs Seirawan, 1983  (E00) Queen's Pawn Game, 46 moves, 1-0 Round 2 (November 14) Yusupov vs V Kovacevic, 1983  (A55) Old Indian, Main line, 39 moves, 1-0 Round 2 (November 14) Kurajica vs Portisch, 1983 (A46) Queen's Pawn Game, 16 moves, 1/2-1/2 Round 2 (November 14) I Radulov vs Lobron, 1983 (B42) Sicilian, Kan, 24 moves, 1-0 Round 2 (November 14) K Hulak vs H Ardiansyah, 1983 (A92) Dutch, 53 moves, 0-1 Round 2 (November 14) Adorjan vs E Handoko, 1983 (A33) English, Symmetrical, 30 moves, 1/2-1/2 Round 2 (November 14) Romanishin vs E Torre, 1983  (A07) King's Indian Attack, 45 moves, 1-0 Round 2 (November 14) E E Miolo vs R Gunawan, 1983 (E97) King's Indian, 46 moves, 0-1 Round 2 (November 14) Timman vs Andersson, 1983  (A46) Queen's Pawn Game, 85 moves, 1/2-1/2 Round 3 (November 15) Andersson vs W Schmidt, 1983 (E92) King's Indian, 29 moves, 1/2-1/2 Round 3 (November 15) R Gunawan vs Timman, 1983 (E15) Queen's Indian, 46 moves, 1/2-1/2 Round 3 (November 15) E Torre vs E E Miolo, 1983 (A10) English, 42 moves, 1-0 Round 3 (November 15) E Handoko vs Romanishin, 1983 (A22) English, 72 moves, 0-1 Round 3 (November 15) H Ardiansyah vs Adorjan, 1983 (E15) Queen's Indian, 57 moves, 1-0 Round 3 (November 15) Lobron vs K Hulak, 1983 (B97) Sicilian, Najdorf, 26 moves, 1-0 Round 3 (November 15) Portisch vs I Radulov, 1983 (A30) English, Symmetrical, 42 moves, 1-0 Round 3 (November 15) V Kovacevic vs Kurajica, 1983 (D02) Queen's Pawn Game, 21 moves, 1/2-1/2 Round 3 (November 15) Seirawan vs Yusupov, 1983 (D14) Queen's Gambit Declined Slav, Exchange Variation, 39 moves, 1/2-1/2 Round 3 (November 15) Ljubojevic vs Henley, 1983 (C42) Petrov Defense, 22 moves, 1/2-1/2 Round 3 (November 15) Adianto vs Tarjan, 1983 (B83) Sicilian, 29 moves, 0-1 Round 4 W Schmidt vs Tarjan, 1983  (E92) King's Indian, 48 moves, 1-0 Round 4 Henley vs Adianto, 1983  (E12) Queen's Indian, 46 moves, 0-1 Round 4 Yusupov vs Ljubojevic, 1983  (A46) Queen's Pawn Game, 16 moves, 1/2-1/2 Round 4 Kurajica vs Seirawan, 1983 (D23) Queen's Gambit Accepted, 38 moves, 0-1 Round 4 I Radulov vs V Kovacevic, 1983 (C49) Four Knights, 19 moves, 1/2-1/2 Round 4 K Hulak vs Portisch, 1983 (B92) Sicilian, Najdorf, Opocensky Variation, 41 moves, 0-1 Round 4 Adorjan vs Lobron, 1983 (D34) Queen's Gambit Declined, Tarrasch, 82 moves, 1/2-1/2 Round 4 Romanishin vs H Ardiansyah, 1983 (A29) English, Four Knights, Kingside Fianchetto, 63 moves, 1/2-1/2 Round 4 E E Miolo vs E Handoko, 1983 (A30) English, Symmetrical, 18 moves, 1/2-1/2 Round 4 Timman vs E Torre, 1983  (C99) Ruy Lopez, Closed, Chigorin, 12...cd, 50 moves, 1-0 Round 4 Andersson vs R Gunawan, 1983  (E92) King's Indian, 42 moves, 1/2-1/2 Round 5 R Gunawan vs W Schmidt, 1983 (A57) Benko Gambit, 31 moves, 1/2-1/2 Round 5 E Torre vs Andersson, 1983 (E11) Bogo-Indian Defense, 55 moves, 1/2-1/2 Round 5 E Handoko vs Timman, 1983  (B22) Sicilian, Alapin, 36 moves, 0-1 Round 5 H Ardiansyah vs E E Miolo, 1983 (A72) Benoni, Classical without 9.O-O, 18 moves, 1-0 Round 5 Lobron vs Romanishin, 1983  (C96) Ruy Lopez, Closed, 65 moves, 0-1 Round 5 Portisch vs Adorjan, 1983 (E12) Queen's Indian, 28 moves, 1/2-1/2 Round 5 V Kovacevic vs K Hulak, 1983 (E66) King's Indian, Fianchetto, Yugoslav Panno, 22 moves, 1/2-1/2 Round 5 Seirawan vs I Radulov, 1983 (D03) Torre Attack (Tartakower Variation), 48 moves, 1-0 Round 5 Ljubojevic vs Kurajica, 1983  (B44) Sicilian, 25 moves, 1/2-1/2 Round 5 Adianto vs Yusupov, 1983  (C19) French, Winawer, Advance, 31 moves, 0-1 Round 5 Tarjan vs Henley, 1983 (D52) Queen's Gambit Declined, 23 moves, 1/2-1/2 Round 6 W Schmidt vs Henley, 1983  (D44) Queen's Gambit Declined Semi-Slav, 27 moves, 0-1 Round 6 Yusupov vs Tarjan, 1983 (E32) Nimzo-Indian, Classical, 31 moves, 1/2-1/2 Round 6 Kurajica vs Adianto, 1983 (D34) Queen's Gambit Declined, Tarrasch, 32 moves, 1-0 Round 6 I Radulov vs Ljubojevic, 1983 (B93) Sicilian, Najdorf, 6.f4, 68 moves, 0-1 Round 6 K Hulak vs Seirawan, 1983  (B18) Caro-Kann, Classical, 43 moves, 0-1 Round 6 Adorjan vs V Kovacevic, 1983 (D16) Queen's Gambit Declined Slav, 14 moves, 1/2-1/2 Round 6 Romanishin vs Portisch, 1983 (E12) Queen's Indian, 33 moves, 1/2-1/2 Round 6 E E Miolo vs Lobron, 1983 (B06) Robatsch, 89 moves, 0-1 Round 6 Timman vs H Ardiansyah, 1983  (D25) Queen's Gambit Accepted, 26 moves, 1-0 Round 6 Andersson vs E Handoko, 1983  (D30) Queen's Gambit Declined, 47 moves, 1-0 Round 6 R Gunawan vs E Torre, 1983 (E80) King's Indian, Samisch Variation, 39 moves, 0-1 Round 7 E Torre vs W Schmidt, 1983 (B46) Sicilian, Taimanov Variation, 43 moves, 1-0 Round 7 E Handoko vs R Gunawan, 1983 (E63) King's Indian, Fianchetto, Panno Variation, 40 moves, 0-1 Round 7 H Ardiansyah vs Andersson, 1983 (E11) Bogo-Indian Defense, 32 moves, 1/2-1/2 Round 7 Lobron vs Timman, 1983 (C80) Ruy Lopez, Open, 21 moves, 0-1 Round 7 Portisch vs E E Miolo, 1983  (D45) Queen's Gambit Declined Semi-Slav, 25 moves, 1-0 Round 7 V Kovacevic vs Romanishin, 1983 (A45) Queen's Pawn Game, 80 moves, 1/2-1/2 Round 7 Seirawan vs Adorjan, 1983 (E15) Queen's Indian, 18 moves, 1/2-1/2 Round 7 Ljubojevic vs K Hulak, 1983  (B46) Sicilian, Taimanov Variation, 29 moves, 1-0 Round 7 Adianto vs I Radulov, 1983 (D24) Queen's Gambit Accepted, 32 moves, 1/2-1/2 Round 7 Tarjan vs Kurajica, 1983 (E11) Bogo-Indian Defense, 44 moves, 1/2-1/2 Round 7 Henley vs Yusupov, 1983 (D30) Queen's Gambit Declined, 8 moves, 1/2-1/2 Round 8 (November 23) W Schmidt vs Yusupov, 1983 (E11) Bogo-Indian Defense, 25 moves, 1/2-1/2 Round 8 (November 23) Kurajica vs Henley, 1983 (D02) Queen's Pawn Game, 24 moves, 1/2-1/2 Round 8 (November 23) I Radulov vs Tarjan, 1983 (B93) Sicilian, Najdorf, 6.f4, 42 moves, 0-1 Round 8 (November 23) K Hulak vs Adianto, 1983 (E06) Catalan, Closed, 5.Nf3, 40 moves, 1-0 Round 8 (November 23) Adorjan vs Ljubojevic, 1983 (A27) English, Three Knights System, 13 moves, 1/2-1/2 Round 8 (November 23) Romanishin vs Seirawan, 1983 (E12) Queen's Indian, 50 moves, 1-0 Round 8 (November 23) E E Miolo vs V Kovacevic, 1983 (B05) Alekhine's Defense, Modern, 20 moves, 0-1 Round 8 (November 23) Timman vs Portisch, 1983 (E15) Queen's Indian, 41 moves, 1/2-1/2 Round 8 (November 23) Andersson vs Lobron, 1983 (A15) English, 53 moves, 1/2-1/2 Round 8 (November 23) R Gunawan vs H Ardiansyah, 1983 (A08) King's Indian Attack, 30 moves, 0-1 Round 8 (November 23) E Torre vs E Handoko, 1983  (C42) Petrov Defense, 21 moves, 0-1 Round 9 (November 24) E Handoko vs W Schmidt, 1983 (B83) Sicilian, 31 moves, 0-1 Round 9 (November 24) H Ardiansyah vs E Torre, 1983 (D30) Queen's Gambit Declined, 46 moves, 0-1 Round 9 (November 24) Lobron vs R Gunawan, 1983 (C05) French, Tarrasch, 41 moves, 1-0 Round 9 (November 24) Portisch vs Andersson, 1983  (E11) Bogo-Indian Defense, 49 moves, 1-0 Round 9 (November 24) V Kovacevic vs Timman, 1983 (D02) Queen's Pawn Game, 57 moves, 0-1 Round 9 (November 24) Seirawan vs E E Miolo, 1983  (D37) Queen's Gambit Declined, 81 moves, 1-0 Round 9 (November 24) Ljubojevic vs Romanishin, 1983 (B44) Sicilian, 57 moves, 1-0 Round 9 (November 24) Adianto vs Adorjan, 1983 (E15) Queen's Indian, 46 moves, 0-1 Round 9 (November 24) Tarjan vs K Hulak, 1983  (B81) Sicilian, Scheveningen, Keres Attack, 55 moves, 0-1 Round 9 (November 24) Henley vs I Radulov, 1983 (D55) Queen's Gambit Declined, 16 moves, 1/2-1/2 Round 9 (November 24) Yusupov vs Kurajica, 1983 (E11) Bogo-Indian Defense, 32 moves, 1/2-1/2 Round 10 W Schmidt vs Kurajica, 1983 (E12) Queen's Indian, 28 moves, 1/2-1/2 Round 10 I Radulov vs Yusupov, 1983 (C07) French, Tarrasch, 39 moves, 0-1 Round 10 K Hulak vs Henley, 1983 (D76) Neo-Grunfeld, 6.cd Nxd5, 7.O-O Nb6, 44 moves, 0-1 Round 10 Adorjan vs Tarjan, 1983 (D34) Queen's Gambit Declined, Tarrasch, 27 moves, 1/2-1/2 Round 10 Romanishin vs Adianto, 1983  (A05) Reti Opening, 37 moves, 1-0 Round 10 E E Miolo vs Ljubojevic, 1983 (A30) English, Symmetrical, 45 moves, 0-1 Round 10 Timman vs Seirawan, 1983  (D29) Queen's Gambit Accepted, Classical, 77 moves, 1-0 Round 10 Andersson vs V Kovacevic, 1983  (A54) Old Indian, Ukrainian Variation, 4.Nf3, 94 moves, 1/2-1/2 Round 10 R Gunawan vs Portisch, 1983 (E15) Queen's Indian, 39 moves, 0-1 Round 10 E Torre vs Lobron, 1983 (A07) King's Indian Attack, 51 moves, 1-0 Round 10 E Handoko vs H Ardiansyah, 1983 (B08) Pirc, Classical, 31 moves, 1/2-1/2 Round 11 H Ardiansyah vs W Schmidt, 1983 (A57) Benko Gambit, 39 moves, 0-1 Round 11 Lobron vs E Handoko, 1983 (C42) Petrov Defense, 77 moves, 1-0 Round 11 Portisch vs E Torre, 1983  (E73) King's Indian, 41 moves, 1/2-1/2 Round 11 V Kovacevic vs R Gunawan, 1983 (A45) Queen's Pawn Game, 39 moves, 1/2-1/2 Round 11 Seirawan vs Andersson, 1983  (E20) Nimzo-Indian, 36 moves, 0-1 Round 11 Ljubojevic vs Timman, 1983 (C82) Ruy Lopez, Open, 28 moves, 1/2-1/2 Round 11 Adianto vs E E Miolo, 1983 (D15) Queen's Gambit Declined Slav, 11 moves, 1/2-1/2 Round 11 Tarjan vs Romanishin, 1983 (D86) Grunfeld, Exchange, 25 moves, 1/2-1/2 Round 11 Henley vs Adorjan, 1983 (C42) Petrov Defense, 16 moves, 1/2-1/2 Round 11 Yusupov vs K Hulak, 1983 (A46) Queen's Pawn Game, 34 moves, 1-0 Round 11 Kurajica vs I Radulov, 1983 (D55) Queen's Gambit Declined, 15 moves, 1/2-1/2 Round 12 (November 28) W Schmidt vs I Radulov, 1983 (D20) Queen's Gambit Accepted, 15 moves, 1/2-1/2 Round 12 (November 28) K Hulak vs Kurajica, 1983 (A36) English, 18 moves, 1/2-1/2 Round 12 (November 28) Adorjan vs Yusupov, 1983 (C43) Petrov, Modern Attack, 13 moves, 1/2-1/2 Round 12 (November 28) Romanishin vs Henley, 1983 (A05) Reti Opening, 45 moves, 1/2-1/2 Round 12 (November 28) E E Miolo vs Tarjan, 1983 (B40) Sicilian, 32 moves, 0-1 Round 12 (November 28) Timman vs Adianto, 1983 (B30) Sicilian, 34 moves, 1-0 Round 12 (November 28) Andersson vs Ljubojevic, 1983 (D18) Queen's Gambit Declined Slav, Dutch, 20 moves, 1/2-1/2 Round 12 (November 28) R Gunawan vs Seirawan, 1983  (A41) Queen's Pawn Game (with ...d6), 44 moves, 0-1 Round 12 (November 28) E Torre vs V Kovacevic, 1983 (A88) Dutch, Leningrad, Main Variation with c6, 74 moves, 1/2-1/2 Round 12 (November 28) E Handoko vs Portisch, 1983 (B90) Sicilian, Najdorf, 35 moves, 1-0 Round 12 (November 28) H Ardiansyah vs Lobron, 1983 (A34) English, Symmetrical, 35 moves, 0-1 Round 13 (November 29) Lobron vs W Schmidt, 1983 (B46) Sicilian, Taimanov Variation, 37 moves, 1/2-1/2 Round 13 (November 29) Portisch vs H Ardiansyah, 1983 (E88) King's Indian, Samisch, Orthodox, 7.d5 c6, 32 moves, 1-0 Round 13 (November 29) V Kovacevic vs E Handoko, 1983 (A47) Queen's Indian, 59 moves, 1/2-1/2 Round 13 (November 29) Seirawan vs E Torre, 1983  (D10) Queen's Gambit Declined Slav, 54 moves, 1-0 Round 13 (November 29) Ljubojevic vs R Gunawan, 1983  (C04) French, Tarrasch, Guimard Main line, 26 moves, 0-1 Round 13 (November 29) Adianto vs Andersson, 1983 (B46) Sicilian, Taimanov Variation, 37 moves, 0-1 Round 13 (November 29) Tarjan vs Timman, 1983 (E15) Queen's Indian, 53 moves, 0-1 Round 13 (November 29) Henley vs E E Miolo, 1983 (A47) Queen's Indian, 36 moves, 1-0 Round 13 (November 29) Yusupov vs Romanishin, 1983 (D85) Grunfeld, 55 moves, 1-0 Round 13 (November 29) Kurajica vs Adorjan, 1983 (A46) Queen's Pawn Game, 7 moves, 1/2-1/2 Round 13 (November 29) I Radulov vs K Hulak, 1983 (C42) Petrov Defense, 16 moves, 1/2-1/2 Round 14 (November 30) W Schmidt vs K Hulak, 1983 (A61) Benoni, 54 moves, 1-0 Round 14 (November 30) Adorjan vs I Radulov, 1983 (A33) English, Symmetrical, 27 moves, 1/2-1/2 Round 14 (November 30) Romanishin vs Kurajica, 1983 (A25) English, 16 moves, 1/2-1/2 Round 14 (November 30) E E Miolo vs Yusupov, 1983 (D05) Queen's Pawn Game, 29 moves, 1/2-1/2 Round 14 (November 30) Timman vs Henley, 1983 (D44) Queen's Gambit Declined Semi-Slav, 40 moves, 0-1 Round 14 (November 30) Andersson vs Tarjan, 1983 (D24) Queen's Gambit Accepted, 18 moves, 1/2-1/2 Round 14 (November 30) R Gunawan vs Adianto, 1983 (B99) Sicilian, Najdorf, 7...Be7 Main line, 31 moves, 1-0 Round 14 (November 30) E Torre vs Ljubojevic, 1983  (E15) Queen's Indian, 49 moves, 1-0 Round 14 (November 30) E Handoko vs Seirawan, 1983 (B08) Pirc, Classical, 41 moves, 0-1 Round 14 (November 30) H Ardiansyah vs V Kovacevic, 1983 (E46) Nimzo-Indian, 38 moves, 0-1 Round 14 (November 30) Lobron vs Portisch, 1983 (B97) Sicilian, Najdorf, 53 moves, 0-1 Round 15 (December 3) Portisch vs W Schmidt, 1983 (D86) Grunfeld, Exchange, 44 moves, 1-0 Round 15 (December 3) V Kovacevic vs Lobron, 1983 (A46) Queen's Pawn Game, 37 moves, 0-1 Round 15 (December 3) Seirawan vs H Ardiansyah, 1983  (D91) Grunfeld, 5.Bg5, 24 moves, 1-0 Round 15 (December 3) Ljubojevic vs E Handoko, 1983 (C42) Petrov Defense, 67 moves, 1/2-1/2 Round 15 (December 3) Adianto vs E Torre, 1983 (B08) Pirc, Classical, 32 moves, 1-0 Round 15 (December 3) Tarjan vs R Gunawan, 1983 (E84) King's Indian, Samisch, Panno Main line, 32 moves, 0-1 Round 15 (December 3) Henley vs Andersson, 1983 (D37) Queen's Gambit Declined, 11 moves, 1/2-1/2 Round 15 (December 3) Yusupov vs Timman, 1983 (D85) Grunfeld, 72 moves, 1/2-1/2 Round 15 (December 3) Kurajica vs E E Miolo, 1983 (A13) English, 38 moves, 1-0 Round 15 (December 3) I Radulov vs Romanishin, 1983 (B46) Sicilian, Taimanov Variation, 39 moves, 0-1 Round 15 (December 3) K Hulak vs Adorjan, 1983  (B82) Sicilian, Scheveningen, 40 moves, 0-1 Round 16 W Schmidt vs Adorjan, 1983 (A46) Queen's Pawn Game, 20 moves, 1/2-1/2 Round 16 Romanishin vs K Hulak, 1983 (A04) Reti Opening, 69 moves, 1-0 Round 16 E E Miolo vs I Radulov, 1983 (B85) Sicilian, Scheveningen, Classical, 49 moves, 1-0 Round 16 Timman vs Kurajica, 1983 (E12) Queen's Indian, 30 moves, 1/2-1/2 Round 16 Andersson vs Yusupov, 1983 (A26) English, 23 moves, 1/2-1/2 Round 16 R Gunawan vs Henley, 1983 (D43) Queen's Gambit Declined Semi-Slav, 42 moves, 1-0 Round 16 E Torre vs Tarjan, 1983  (D02) Queen's Pawn Game, 69 moves, 1/2-1/2 Round 16 E Handoko vs Adianto, 1983 (B18) Caro-Kann, Classical, 46 moves, 1/2-1/2 Round 16 H Ardiansyah vs Ljubojevic, 1983 (D02) Queen's Pawn Game, 52 moves, 0-1 Round 16 Lobron vs Seirawan, 1983  (B10) Caro-Kann, 36 moves, 0-1 Round 16 Portisch vs V Kovacevic, 1983 (A86) Dutch, 48 moves, 1-0 Round 17 (December 6) V Kovacevic vs W Schmidt, 1983 (A48) King's Indian, 51 moves, 1-0 Round 17 (December 6) Seirawan vs Portisch, 1983  (E38) Nimzo-Indian, Classical, 4...c5, 36 moves, 1-0 Round 17 (December 6) Ljubojevic vs Lobron, 1983 (B10) Caro-Kann, 30 moves, 1/2-1/2 Round 17 (December 6) Adianto vs H Ardiansyah, 1983 (B28) Sicilian, O'Kelly Variation, 34 moves, 1-0 Round 17 (December 6) Tarjan vs E Handoko, 1983 (E15) Queen's Indian, 44 moves, 1-0 Round 17 (December 6) Henley vs E Torre, 1983 (D14) Queen's Gambit Declined Slav, Exchange Variation, 16 moves, 1/2-1/2 Round 17 (December 6) Yusupov vs R Gunawan, 1983 (E92) King's Indian, 34 moves, 1-0 Round 17 (December 6) Kurajica vs Andersson, 1983 (D61) Queen's Gambit Declined, Orthodox, Rubinstein Attack, 15 moves, 1/2-1/2 Round 17 (December 6) I Radulov vs Timman, 1983 (B93) Sicilian, Najdorf, 6.f4, 38 moves, 1/2-1/2 Round 17 (December 6) K Hulak vs E E Miolo, 1983 (A04) Reti Opening, 63 moves, 1-0 Round 17 (December 6) Adorjan vs Romanishin, 1983 (E80) King's Indian, Samisch Variation, 18 moves, 1/2-1/2 Round 18 (December 7) W Schmidt vs Romanishin, 1983 (A77) Benoni, Classical, 9...Re8, 10.Nd2, 33 moves, 0-1 Round 18 (December 7) E E Miolo vs Adorjan, 1983 (B84) Sicilian, Scheveningen, 26 moves, 1/2-1/2 Round 18 (December 7) Timman vs K Hulak, 1983 (B47) Sicilian, Taimanov (Bastrikov) Variation, 24 moves, 1-0 Round 18 (December 7) Andersson vs I Radulov, 1983  (D23) Queen's Gambit Accepted, 33 moves, 1-0 Round 18 (December 7) R Gunawan vs Kurajica, 1983 (E15) Queen's Indian, 27 moves, 1/2-1/2 Round 18 (December 7) E Torre vs Yusupov, 1983 (E11) Bogo-Indian Defense, 41 moves, 1-0 Round 18 (December 7) E Handoko vs Henley, 1983 (C07) French, Tarrasch, 44 moves, 1/2-1/2 Round 18 (December 7) H Ardiansyah vs Tarjan, 1983 (D23) Queen's Gambit Accepted, 41 moves, 1-0 Round 18 (December 7) Lobron vs Adianto, 1983 (B63) Sicilian, Richter-Rauzer Attack, 45 moves, 1-0 Round 18 (December 7) Portisch vs Ljubojevic, 1983 (D10) Queen's Gambit Declined Slav, 34 moves, 1-0 Round 18 (December 7) V Kovacevic vs Seirawan, 1983  (A46) Queen's Pawn Game, 52 moves, 0-1 Round 19 (December 9) Seirawan vs W Schmidt, 1983 (A36) English, 69 moves, 0-1 Round 19 (December 9) Ljubojevic vs V Kovacevic, 1983 (C04) French, Tarrasch, Guimard Main line, 44 moves, 1-0 Round 19 (December 9) Adianto vs Portisch, 1983 (B84) Sicilian, Scheveningen, 39 moves, 1-0 Round 19 (December 9) Tarjan vs Lobron, 1983 (E90) King's Indian, 55 moves, 1-0 Round 19 (December 9) Henley vs H Ardiansyah, 1983 (D91) Grunfeld, 5.Bg5, 36 moves, 0-1 Round 19 (December 9) Yusupov vs E Handoko, 1983 (E34) Nimzo-Indian, Classical, Noa Variation, 41 moves, 1-0 Round 19 (December 9) Kurajica vs E Torre, 1983 (D12) Queen's Gambit Declined Slav, 13 moves, 1/2-1/2 Round 19 (December 9) I Radulov vs R Gunawan, 1983 (C07) French, Tarrasch, 17 moves, 1/2-1/2 Round 19 (December 9) K Hulak vs Andersson, 1983 (E00) Queen's Pawn Game, 83 moves, 1/2-1/2 Round 19 (December 9) Adorjan vs Timman, 1983 (C95) Ruy Lopez, Closed, Breyer, 18 moves, 1/2-1/2 Round 19 (December 9) Romanishin vs E E Miolo, 1983 (A07) King's Indian Attack, 41 moves, 1-0 Round 20 (December 10) W Schmidt vs E E Miolo, 1983 (D85) Grunfeld, 38 moves, 1/2-1/2 Round 20 (December 10) Timman vs Romanishin, 1983 (A21) English, 39 moves, 1-0 Round 20 (December 10) Andersson vs Adorjan, 1983 (A04) Reti Opening, 72 moves, 1/2-1/2 Round 20 (December 10) R Gunawan vs K Hulak, 1983 (E10) Queen's Pawn Game, 13 moves, 1/2-1/2 Round 20 (December 10) E Torre vs I Radulov, 1983 (D24) Queen's Gambit Accepted, 10 moves, 1/2-1/2 Round 20 (December 10) E Handoko vs Kurajica, 1983 (B83) Sicilian, 35 moves, 1-0 Round 20 (December 10) H Ardiansyah vs Yusupov, 1983 (D02) Queen's Pawn Game, 28 moves, 1/2-1/2 Round 20 (December 10) Lobron vs Henley, 1983 (C07) French, Tarrasch, 20 moves, 1/2-1/2 Round 20 (December 10) Portisch vs Tarjan, 1983 (D34) Queen's Gambit Declined, Tarrasch, 60 moves, 1-0 Round 20 (December 10) V Kovacevic vs Adianto, 1983  (A46) Queen's Pawn Game, 41 moves, 0-1 Round 20 (December 10) Seirawan vs Ljubojevic, 1983 (A61) Benoni, 24 moves, 1/2-1/2 Round 21 (December 12) Ljubojevic vs W Schmidt, 1983 (B81) Sicilian, Scheveningen, Keres Attack, 29 moves, 1/2-1/2 Round 21 (December 12) Adianto vs Seirawan, 1983 (B18) Caro-Kann, Classical, 57 moves, 1/2-1/2 Round 21 (December 12) Tarjan vs V Kovacevic, 1983 (D30) Queen's Gambit Declined, 45 moves, 1/2-1/2 Round 21 (December 12) Henley vs Portisch, 1983 (D17) Queen's Gambit Declined Slav, 12 moves, 1/2-1/2 Round 21 (December 12) Yusupov vs Lobron, 1983 (A32) English, Symmetrical Variation, 40 moves, 0-1 Round 21 (December 12) Kurajica vs H Ardiansyah, 1983 (D11) Queen's Gambit Declined Slav, 9 moves, 1/2-1/2 Round 21 (December 12) I Radulov vs E Handoko, 1983 (C50) Giuoco Piano, 32 moves, 1-0 Round 21 (December 12) K Hulak vs E Torre, 1983 (A36) English, 14 moves, 1/2-1/2 Round 21 (December 12) Adorjan vs R Gunawan, 1983 (C07) French, Tarrasch, 12 moves, 1/2-1/2 Round 21 (December 12) Romanishin vs Andersson, 1983  (A04) Reti Opening, 51 moves, 0-1 Round 21 (December 12) E E Miolo vs Timman, 1983 (D25) Queen's Gambit Accepted, 51 moves, 1/2-1/2 231 games