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IBM

  Amsterdam 1969
Date Players Type Elo Average Games Rounds
1969 16 Tourn 120 15

  Name ELO Points
  GM Portisch, Lajos 11.5
  Liberzon, Vladimir M 10.0
  GM Vasiukov, Evgeni 9.5
  GM Damjanovic, Mato 9.0
  Stein, Leonid 9.0
  GM Ivkov, Borislav 8.5
  GM Byrne, Robert E 8.5
  GM Darga, Klaus 8.5
  GM Kavalek, Lubomir 8.0
  GM Ree, Hans 6.5
  GM Gheorghiu, Florin 6.0
  Hartoch, Robert G 6.0
  IM Tatai, Stefano 6.0
  Donner, Jan Hein 5.5
  IM Langeweg, Kick 4.5
  Barendregt, Johan Teunis 3.0

IBM Games

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White Black Result Round Date Opening View
Barendregt, J Damjanovic, M 0-1 1 1969 B31 Sicilian, Nyezhmetdinov-Rossolimo attack (with ...g6, without ...d6)  
Donner, J Ree, H ½-½ 1 1969 A79 Benoni, classical, 11.f3  
Gheorghiu, F Vasiukov, E ½-½ 1 1969 A39 English, symmetrical, main line with d4  
Hartoch, R Kavalek, L ½-½ 1 1969 E61 King's Indian defence, 3.Nc3  
Ivkov, B Byrne, R ½-½ 1 1969 E66 King's Indian, fianchetto, Yugoslav Panno  
Liberzon, V Langeweg, K 1-0 1 1969 A14 English, Neo-Catalan declined  
Portisch, L Darga, K ½-½ 1 1969 A34 English, symmetrical variation  
Tatai, S Stein, L ½-½ 1 1969 B61 Sicilian, Richter-Rauzer, Larsen variation, 7.Qd2  
Byrne, R Barendregt, J 0-1 2 1969 A36 English, symmetrical variation  
Damjanovic, M Hartoch, R ½-½ 2 1969 B62 Sicilian, Richter-Rauzer, 6...e6  
Darga, K Ivkov, B ½-½ 2 1969 E54 Nimzo-Indian, 4.e3, Gligoric system with 7...dc  
Gheorghiu, F Portisch, L 0-1 2 1969 C33 King's gambit accepted  
Kavalek, L Tatai, S ½-½ 2 1969 D78 Neo-Gruenfeld, 6.O-O c6  
Ree, H Liberzon, V 0-1 2 1969 B88 Sicilian, Sozin, Leonhardt variation  
Stein, L Donner, J 1-0 2 1969 E62 King's Indian, fianchetto variation  
Vasiukov, E Langeweg, K 1-0 2 1969 B54 Sicilian  
Barendregt, J Darga, K 0-1 3 1969 B40 Sicilian defence  
Donner, J Kavalek, L 0-1 3 1969 E92 King's Indian, classical variation  
Hartoch, R Byrne, R ½-½ 3 1969 E66 King's Indian, fianchetto, Yugoslav Panno  
Ivkov, B Gheorghiu, F 1-0 3 1969 A52 Budapest defence  
Langeweg, K Ree, H ½-½ 3 1969 A32 English, symmetrical variation  
Liberzon, V Stein, L ½-½ 3 1969 B61 Sicilian, Richter-Rauzer, Larsen variation, 7.Qd2  
Portisch, L Vasiukov, E ½-½ 3 1969 B09 Pirc, Austrian attack  
Tatai, S Damjanovic, M 1-0 3 1969 B44 Sicilian defence  
Byrne, R Tatai, S ½-½ 4 1969 B05 Alekhine's defence, modern variation, 4...Bg4  
Damjanovic, M Donner, J ½-½ 4 1969 B08 Pirc, classical (two knights) system  
Darga, K Hartoch, R ½-½ 4 1969 E07 Catalan, closed, 6...Nbd7  
Gheorghiu, F Barendregt, J ½-½ 4 1969 A43 Old Benoni defence  
Kavalek, L Liberzon, V ½-½ 4 1969 B81 Sicilian, Scheveningen, Keres attack  
Portisch, L Ivkov, B 1-0 4 1969 A07 Reti, King's Indian attack (Barcza system)  
Stein, L Langeweg, K 1-0 4 1969 E13 Queen's Indian, 4.Nc3, main line  
Vasiukov, E Ree, H 1-0 4 1969 B50 Sicilian  
Barendregt, J Portisch, L 0-1 5 1969 B40 Sicilian defence  
Donner, J Byrne, R 0-1 5 1969 E97 King's Indian, orthodox, Aronin-Taimanov variation (Yugoslav attack / Mar del Plata variation)  
Hartoch, R Gheorghiu, F ½-½ 5 1969 A25 English, Sicilian reversed  
Ivkov, B Vasiukov, E ½-½ 5 1969 A64 Benoni, fianchetto, 11...Re8  
Langeweg, K Kavalek, L ½-½ 5 1969 B93 Sicilian, Najdorf, 6.f4  
Liberzon, V Damjanovic, M ½-½ 5 1969 B36 Sicilian, accelerated fianchetto, Maroczy bind  
Ree, H Stein, L 1-0 5 1969 E80 King's Indian, Saemisch variation  
Tatai, S Darga, K ½-½ 5 1969 B43 Sicilian, Kan, 5.Nc3  
Byrne, R Liberzon, V ½-½ 6 1969 B80 Sicilian, Scheveningen variation  
Damjanovic, M Langeweg, K 1-0 6 1969 B89 Sicilian, Sozin, 7.Be3  
Darga, K Donner, J ½-½ 6 1969 C43 Petrov, modern (Steinitz) attack  
Gheorghiu, F Tatai, S 1-0 6 1969 A17 English opening  
Ivkov, B Barendregt, J ½-½ 6 1969 A42 Modern defence, Averbakh system  
Kavalek, L Ree, H ½-½ 6 1969 C96 Ruy Lopez, closed (8...Na5)  
Portisch, L Hartoch, R 1-0 6 1969 D37 Queen's Gambit Declined, 4.Nf3  
Vasiukov, E Stein, L ½-½ 6 1969 B57 Sicilian, Sozin, not Scheveningen  
Barendregt, J Vasiukov, E 0-1 7 1969 B80 Sicilian, Scheveningen variation  
Donner, J Gheorghiu, F 0-1 7 1969 D82 Gruenfeld, 4.Bf4  
Hartoch, R Ivkov, B 0-1 7 1969 A14 English, Neo-Catalan declined  
Langeweg, K Byrne, R 0-1 7 1969 A49 King's Indian, fianchetto without c4  
Liberzon, V Darga, K 1-0 7 1969 C93 Ruy Lopez, closed, Smyslov defence  
Ree, H Damjanovic, M ½-½ 7 1969 A38 English, symmetrical variation  
Stein, L Kavalek, L ½-½ 7 1969 B37 Sicilian, accelerated fianchetto, Maroczy bind, 5...Bg7  
Tatai, S Portisch, L 0-1 7 1969 B43 Sicilian, Kan, 5.Nc3  
Barendregt, J Hartoch, R 0-1 8 1969 B31 Sicilian, Nyezhmetdinov-Rossolimo attack (with ...g6, without ...d6)  
Byrne, R Ree, H ½-½ 8 1969 B81 Sicilian, Scheveningen, Keres attack  
Damjanovic, M Stein, L ½-½ 8 1969 B57 Sicilian, Sozin, not Scheveningen  
Darga, K Langeweg, K ½-½ 8 1969 A17 English opening  
Gheorghiu, F Liberzon, V ½-½ 8 1969 B85 Sicilian, Scheveningen, classical variation with ...Qc7 and ...Nc6  
Ivkov, B Tatai, S 1-0 8 1969 E17 Queen's Indian, 5.Bg2 Be7  
Portisch, L Donner, J 1-0 8 1969 A31 English, symmetrical, Benoni formation  
Vasiukov, E Kavalek, L ½-½ 8 1969 B51 Sicilian, Canal-Sokolsky (Nimzovich-Rossolimo, Moscow) attack  
Donner, J Ivkov, B ½-½ 9 1969 B06 Robatsch (modern) defence  
Hartoch, R Vasiukov, E 0-1 9 1969 A23 English, Bremen system, Keres variation  
Kavalek, L Damjanovic, M 0-1 9 1969 B32 Sicilian defence  
Langeweg, K Gheorghiu, F ½-½ 9 1969 D91 Gruenfeld, 5.Bg5  
Liberzon, V Portisch, L ½-½ 9 1969 C95 Ruy Lopez, closed, Breyer, 10.d4  
Ree, H Darga, K 0-1 9 1969 C18 French, Winawer, advance variation  
Stein, L Byrne, R ½-½ 9 1969 E64 King's Indian, fianchetto, Yugoslav system  
Tatai, S Barendregt, J ½-½ 9 1969 B07 Pirc defence  
Barendregt, J Donner, J ½-½ 10 1969 B20 Sicilian defence  
Byrne, R Kavalek, L ½-½ 10 1969 A21 English opening  
Darga, K Stein, L 1-0 10 1969 A53 Old Indian defence  
Gheorghiu, F Ree, H ½-½ 10 1969 D79 Neo-Gruenfeld, 6.O-O, main line  
Hartoch, R Tatai, S ½-½ 10 1969 A36 English, symmetrical variation  
Ivkov, B Liberzon, V ½-½ 10 1969 E69 King's Indian, fianchetto, classical main line  
Portisch, L Langeweg, K 1-0 10 1969 E56 Nimzo-Indian, 4.e3, main line with 7...Nc6  
Vasiukov, E Damjanovic, M 0-1 10 1969 B47 Sicilian, Taimanov (Bastrikov) variation  
Damjanovic, M Byrne, R 0-1 11 1969 B98 Sicilian, Najdorf, 7...Be7  
Donner, J Hartoch, R ½-½ 11 1969 D35 Queen's Gambit Declined, 3...Nf6  
Kavalek, L Darga, K ½-½ 11 1969 B42 Sicilian, Kan, 5.Bd3  
Langeweg, K Ivkov, B ½-½ 11 1969 A12 English, Caro-Kann defensive system  
Liberzon, V Barendregt, J 1-0 11 1969 A43 Old Benoni defence  
Ree, H Portisch, L ½-½ 11 1969 B48 Sicilian, Taimanov variation  
Stein, L Gheorghiu, F 1-0 11 1969 B08 Pirc, classical (two knights) system  
Tatai, S Vasiukov, E 0-1 11 1969 B48 Sicilian, Taimanov variation  
Barendregt, J Langeweg, K 0-1 12 1969 B40 Sicilian defence  
Darga, K Damjanovic, M ½-½ 12 1969 A35 English, symmetrical variation  
Gheorghiu, F Kavalek, L 0-1 12 1969 E84 King's Indian, Saemisch, Panno main line  
Hartoch, R Liberzon, V ½-½ 12 1969 A25 English, Sicilian reversed  
Ivkov, B Ree, H ½-½ 12 1969 B84 Sicilian, Scheveningen (Paulsen), classical variation  
Portisch, L Stein, L ½-½ 12 1969 D74 Neo-Gruenfeld, 6.cd Nxd5, 7.O-O  
Tatai, S Donner, J ½-½ 12 1969 B09 Pirc, Austrian attack  
Vasiukov, E Byrne, R ½-½ 12 1969 B50 Sicilian  
Byrne, R Darga, K ½-½ 13 1969 C95 Ruy Lopez, closed, Breyer, 10.d4  
Damjanovic, M Gheorghiu, F 1-0 13 1969 B07 Pirc defence  
Donner, J Vasiukov, E ½-½ 13 1969 A39 English, symmetrical, main line with d4  
Kavalek, L Portisch, L 0-1 13 1969 C93 Ruy Lopez, closed, Smyslov defence