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IBM

  Amsterdam 1968
Date Players Type Elo Average Games Rounds
Jul, 1968 16 Tourn 120 15

  Name ELO Points
  GM Kavalek, Lubomir 10.5
  Bronstein, David 10.0
  IM Langeweg, Kick 8.5
  Shamkovich, Leonid 8.5
  GM Ree, Hans 8.5
  GM Lengyel, Levente 8.5
  GM Ciric, Dragoljub M 8.5
  Donner, Jan Hein 8.0
  GM Ivkov, Borislav 8.0
  Kotov, Alexander 7.5
  GM Marovic, Drazen 7.5
  GM Bilek, Istvan 7.0
  IM Bouwmeester, Hans 6.0
  Jongsma, Alexander 5.0
  Kuijpers, Franciscus Antonius 4.5
  Zuidema, Coenraad 3.5

IBM Games

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White Black Result Round Date Opening View
Donner, J Marovic, D ½-½ 1 1968 D36 Queen's Gambit Declined, exchange, positional line, 6.Qc2  
Ivkov, B Zuidema, C 1-0 1 1968 A22 English opening  
Jongsma, A Bronstein, D ½-½ 1 1968 B10 Caro-Kann defence  
Kavalek, L Ciric, D ½-½ 1 1968 D14 Queen's Gambit Declined Slav, exchange variation, 6.Bf4 Bf5  
Kuijpers, F Kotov, A 1-0 1 1968 B09 Pirc, Austrian attack  
Langeweg, K Bouwmeester, H ½-½ 1 1968 A14 English, Neo-Catalan declined  
Lengyel, L Bilek, I ½-½ 1 1968 E18 Queen's Indian, old main line, 7.Nc3  
Shamkovich, L Ree, H ½-½ 1 1968 E52 Nimzo-Indian, 4.e3, main line with ...b6  
Bilek, I Jongsma, A ½-½ 2 1968 A03 Bird's opening  
Bouwmeester, H Shamkovich, L 0-1 2 1968 E43 Nimzo-Indian, Fischer variation  
Ciric, D Kuijpers, F 1-0 2 1968 C93 Ruy Lopez, closed, Smyslov defence  
Ivkov, B Kavalek, L 1-0 2 1968 E62 King's Indian, fianchetto variation  
Kotov, A Langeweg, K ½-½ 2 1968 A17 English opening  
Marovic, D Lengyel, L ½-½ 2 1968 E39 Nimzo-Indian, classical, Pirc variation  
Ree, H Donner, J ½-½ 2 1968 C02 French, advance variation  
Zuidema, C Bronstein, D ½-½ 2 1968 C07 French, Tarrasch, open variation  
Bronstein, D Bilek, I ½-½ 3 1968 B06 Robatsch (modern) defence  
Donner, J Bouwmeester, H 1-0 3 1968 E54 Nimzo-Indian, 4.e3, Gligoric system with 7...dc  
Jongsma, A Marovic, D 0-1 3 1968 A15 English, 1...Nf6 (Anglo-Indian defense)  
Kavalek, L Zuidema, C 1-0 3 1968 D63 Queen's Gambit Declined, Orthodox defence, 7.Rc1  
Kuijpers, F Ivkov, B 0-1 3 1968 C97 Ruy Lopez, closed, Chigorin defence  
Langeweg, K Ciric, D ½-½ 3 1968 A14 English, Neo-Catalan declined  
Lengyel, L Ree, H ½-½ 3 1968 D47 Queen's Gambit Declined semi-Slav, 7.Bc4  
Shamkovich, L Kotov, A ½-½ 3 1968 D42 Queen's Gambit Declined, Semi-Tarrasch, 7.Bd3  
Bouwmeester, H Lengyel, L 1-0 4 1968 E53 Nimzo-Indian, 4.e3, main line with ...c5  
Ciric, D Shamkovich, L ½-½ 4 1968 B45 Sicilian, Taimanov variation  
Donner, J Kavalek, L 0-1 4 1968 E62 King's Indian, fianchetto variation  
Ivkov, B Langeweg, K 1-0 4 1968 E16 Queen's Indian, Capablanca variation  
Kavalek, L Kuijpers, F 1-0 4 1968 B42 Sicilian, Kan, 5.Bd3  
Kotov, A Donner, J ½-½ 4 1968 A15 English, 1...Nf6 (Anglo-Indian defense)  
Marovic, D Bronstein, D ½-½ 4 1968 E69 King's Indian, fianchetto, classical main line  
Ree, H Jongsma, A ½-½ 4 1968 A12 English, Caro-Kann defensive system  
Zuidema, C Bilek, I 0-1 4 1968 B78 Sicilian, dragon, Yugoslav attack, 10.O-O-O  
Bilek, I Marovic, D ½-½ 5 1968 A49 King's Indian, fianchetto without c4  
Bronstein, D Ree, H ½-½ 5 1968 B31 Sicilian, Nimzovich-Rossolimo attack (with ...g6, without ...d6)  
Donner, J Ciric, D ½-½ 5 1968 A77 Benoni, classical, 9...Re8, 10.Nd2  
Jongsma, A Bouwmeester, H ½-½ 5 1968 C44 King's pawn game  
Kuijpers, F Zuidema, C ½-½ 5 1968 C81 Ruy Lopez, open, Howell attack  
Langeweg, K Kavalek, L 0-1 5 1968 A37 English, symmetrical variation  
Lengyel, L Kotov, A 1-0 5 1968 D56 Queen's Gambit Declined, Lasker defence  
Shamkovich, L Ivkov, B 1-0 5 1968 B06 Robatsch (modern) defence  
Bouwmeester, H Bronstein, D 0-1 6 1968 A87 Dutch, Leningrad, main variation  
Ciric, D Lengyel, L 0-1 6 1968 C96 Ruy Lopez, closed (8...Na5)  
Ivkov, B Donner, J ½-½ 6 1968 C09 French, Tarrasch, open variation, main line  
Kavalek, L Shamkovich, L ½-½ 6 1968 B83 Sicilian, Scheveningen, 6.Be2  
Kotov, A Jongsma, A 1-0 6 1968 D95 Gruenfeld with e3 & Qb3  
Kuijpers, F Langeweg, K ½-½ 6 1968 C81 Ruy Lopez, open, Howell attack  
Ree, H Bilek, I ½-½ 6 1968 B30 Sicilian defence  
Zuidema, C Marovic, D ½-½ 6 1968 B16 Caro-Kann, Bronstein-Larsen variation  
Bilek, I Bouwmeester, H ½-½ 7 1968 C00 French defence  
Bronstein, D Kotov, A 1-0 7 1968 B19 Caro-Kann, classical, 7...Nd7  
Jongsma, A Ciric, D 0-1 7 1968 B30 Sicilian defence  
Langeweg, K Zuidema, C 1-0 7 1968 A14 English, Neo-Catalan declined  
Lengyel, L Ivkov, B ½-½ 7 1968 E16 Queen's Indian, Capablanca variation  
Marovic, D Ree, H 0-1 7 1968 E31 Nimzo-Indian, Leningrad, main line  
Shamkovich, L Kuijpers, F 1-0 7 1968 C95 Ruy Lopez, closed, Breyer, 10.d4  
Bouwmeester, H Marovic, D ½-½ 8 1968 E96 King's Indian, orthodox, 7...Nbd7, main line  
Ciric, D Bronstein, D ½-½ 8 1968 B08 Pirc, classical (two knights) system  
Ivkov, B Jongsma, A ½-½ 8 1968 A23 English, Bremen system, Keres variation  
Kavalek, L Lengyel, L 1-0 8 1968 C92 Ruy Lopez, closed, 9.h3  
Kotov, A Bilek, I 1-0 8 1968 B06 Robatsch (modern) defence  
Kuijpers, F Donner, J ½-½ 8 1968 C08 French, Tarrasch, open, 4.ed ed  
Langeweg, K Shamkovich, L 1-0 8 1968 D32 Queen's Gambit Declined, Tarrasch defence  
Zuidema, C Ree, H ½-½ 8 1968 B35 Sicilian, accelerated fianchetto, modern variation with Bc4  
Bilek, I Ciric, D 1-0 9 1968 B38 Sicilian, accelerated fianchetto, Maroczy bind, 6.Be3  
Bronstein, D Ivkov, B ½-½ 9 1968 C54 Giuoco Piano  
Donner, J Langeweg, K ½-½ 9 1968 E54 Nimzo-Indian, 4.e3, Gligoric system with 7...dc  
Jongsma, A Kavalek, L 0-1 9 1968 E61 King's Indian defence, 3.Nc3  
Lengyel, L Kuijpers, F ½-½ 9 1968 A14 English, Neo-Catalan declined  
Marovic, D Kotov, A 1-0 9 1968 A43 Old Benoni defence  
Ree, H Bouwmeester, H ½-½ 9 1968 C18 French, Winawer, advance variation  
Shamkovich, L Zuidema, C 1-0 9 1968 C83 Ruy Lopez, open, classical defence  
Ciric, D Marovic, D 1-0 10 1968 B02 Alekhine's defence  
Ivkov, B Bilek, I ½-½ 10 1968 A41 Queen's Pawn  
Kavalek, L Bronstein, D 0-1 10 1968 C16 French, Winawer, advance variation  
Kotov, A Ree, H 0-1 10 1968 E52 Nimzo-Indian, 4.e3, main line with ...b6  
Kuijpers, F Jongsma, A 0-1 10 1968 B75 Sicilian, dragon, Yugoslav attack  
Langeweg, K Lengyel, L ½-½ 10 1968 D42 Queen's Gambit Declined, Semi-Tarrasch, 7.Bd3  
Shamkovich, L Donner, J ½-½ 10 1968 B17 Caro-Kann, Steinitz variation  
Zuidema, C Bouwmeester, H ½-½ 10 1968 C07 French, Tarrasch, open variation  
Bilek, I Kavalek, L ½-½ 11 1968 C69 Ruy Lopez, exchange variation, 5.O-O  
Bouwmeester, H Kotov, A ½-½ 11 1968 A42 Modern defence, Averbakh system  
Bronstein, D Kuijpers, F 1-0 11 1968 D31 Queen's Gambit Declined, 3.Nc3  
Donner, J Zuidema, C ½-½ 11 1968 E45 Nimzo-Indian, 4.e3, Bronstein (Byrne) variation  
Jongsma, A Langeweg, K 0-1 11 1968 A04 Reti opening  
Lengyel, L Shamkovich, L 1-0 11 1968 E11 Bogo-Indian defence  
Marovic, D Ivkov, B ½-½ 11 1968 D22 Queen's Gambit Accepted, Alekhine defence  
Ree, H Ciric, D ½-½ 11 1968 B82 Sicilian, Scheveningen, 6.f4  
Ciric, D Bouwmeester, H 1-0 12 1968 C98 Ruy Lopez, closed, Chigorin, 12...Nc6  
Donner, J Lengyel, L ½-½ 12 1968 E56 Nimzo-Indian, 4.e3, main line with 7...Nc6  
Ivkov, B Ree, H 0-1 12 1968 A22 English opening  
Kavalek, L Marovic, D 1-0 12 1968 C11 French defence  
Kuijpers, F Bilek, I ½-½ 12 1968 B72 Sicilian, dragon, 6.Be3  
Langeweg, K Bronstein, D ½-½ 12 1968 E62 King's Indian, fianchetto variation  
Shamkovich, L Jongsma, A 1-0 12 1968 B33 Sicilian defence  
Zuidema, C Kotov, A 0-1 12 1968 B06 Robatsch (modern) defence  
Bilek, I Langeweg, K 0-1 13 1968 A03 Bird's opening  
Bouwmeester, H Ivkov, B ½-½ 13 1968 A42 Modern defence, Averbakh system  
Bronstein, D Shamkovich, L 1-0 13 1968 A41 Queen's Pawn  
Jongsma, A Donner, J ½-½ 13 1968 A04 Reti opening