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Interzonals 1976: Biel
Compiled by capybara
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There were two interzonal tournaments in 1976, with three players qualifying from each one to compete in the Candidates matches. This Interzonal tournament was held in Biel,Switzerland in July and August 1976. Larsen finished in first place with 12.5/19 with 8 wins,9 draws and 2 losses. There was a three-way tie for second place with Portisch,Petrosian and Tal all finishing with 12 points. Just 1/2 point behind were Byrne,Huebner and Smyslov. A play-off tournament was played in Italy, and Petrosian and Portisch qualified for the Candidates matches.


Round one
Ulf Andersson vs Sosonko, 1976
(A13) English, 25 moves, 1/2-1/2

J Diaz Diaz vs Larsen, 1976
(B41) Sicilian, Kan, 49 moves, 0-1

Gulko vs Geller, 1976
(E80) King's Indian, Samisch Variation, 41 moves, 1-0

Huebner vs A Matanovic, 1976
(A14) English, 40 moves, 1-0

A Lombard vs O Castro, 1976 
(D89) Grunfeld, 44 moves, 0-1

Portisch vs V Liberzon, 1976
(E96) King's Indian, Orthodox, 7...Nbd7, Main line, 20 moves, 1/2-1/2

K Rogoff vs Smyslov, 1976 
(C60) Ruy Lopez, 73 moves, 0-1

R Sanguineti vs Petrosian, 1976 
(A41) Queen's Pawn Game (with ...d6), 37 moves, 0-1

Smejkal vs Robert E Byrne, 1976
(E18) Queen's Indian, Old Main line, 7.Nc3, 48 moves, 1/2-1/2

Tal vs Csom, 1976
(B62) Sicilian, Richter-Rauzer, 40 moves, 1/2-1/2

Round two
Robert E Byrne vs Sosonko, 1976
(B78) Sicilian, Dragon, Yugoslav Attack, 10.castle long, 25 moves, 1/2-1/2

O Castro vs Ulf Andersson, 1976 
(B47) Sicilian, Taimanov (Bastrikov) Variation, 113 moves, 0-1

Csom vs Portisch, 1976 
(A06) Reti Opening, 26 moves, 0-1

Geller vs Tal, 1976 
(B42) Sicilian, Kan, 25 moves, 1/2-1/2

Larsen vs R Sanguineti, 1976
(A46) Queen's Pawn Game, 31 moves, 1-0

V Liberzon vs A Lombard, 1976
(D44) Queen's Gambit Declined Semi-Slav, 53 moves, 1-0

A Matanovic vs J Diaz Diaz, 1976
(B84) Sicilian, Scheveningen, 42 moves, 1-0

Petrosian vs K Rogoff, 1976
(A22) English, 19 moves, 1/2-1/2

Smejkal vs Huebner, 1976
(E08) Catalan, Closed, 33 moves, 1/2-1/2

Smyslov vs Gulko, 1976
(A05) Reti Opening, 16 moves, 1/2-1/2

Round three
Ulf Andersson vs V Liberzon, 1976
(A26) English, 20 moves, 1/2-1/2

J Diaz Diaz vs Smejkal, 1976
(B47) Sicilian, Taimanov (Bastrikov) Variation, 41 moves, 0-1

Gulko vs Petrosian, 1976
(B20) Sicilian, 25 moves, 1/2-1/2

Huebner vs Robert E Byrne, 1976
(A04) Reti Opening, 17 moves, 1/2-1/2

A Lombard vs Csom, 1976
(E41) Nimzo-Indian, 40 moves, 0-1

Portisch vs Geller, 1976 
(A58) Benko Gambit, 43 moves, 1-0

K Rogoff vs Larsen, 1976
(B38) Sicilian, Accelerated Fianchetto, Maroczy Bind, 6.Be3, 40 moves, 1/2-1/2

R Sanguineti vs A Matanovic, 1976
(E19) Queen's Indian, Old Main line, 9.Qxc3, 17 moves, 1/2-1/2

Sosonko vs O Castro, 1976
(D98) Grunfeld, Russian, 37 moves, 1/2-1/2

Tal vs Smyslov, 1976 
(C60) Ruy Lopez, 38 moves, 0-1

Round four
Robert E Byrne vs O Castro, 1976
(B00) Uncommon King's Pawn Opening, 41 moves, 1-0

Csom vs Ulf Andersson, 1976 
(E06) Catalan, Closed, 5.Nf3, 25 moves, 1-0

Geller vs A Lombard, 1976
(B33) Sicilian, 52 moves, 1-0

Huebner vs J Diaz Diaz, 1976
(A41) Queen's Pawn Game (with ...d6), 46 moves, 1-0

Larsen vs Gulko, 1976
(A14) English, 51 moves, 1/2-1/2

V Liberzon vs Sosonko, 1976
(E00) Queen's Pawn Game, 10 moves, 1/2-1/2

A Matanovic vs K Rogoff, 1976
(B85) Sicilian, Scheveningen, Classical, 21 moves, 1/2-1/2

Petrosian vs Tal, 1976 
(A04) Reti Opening, 18 moves, 1/2-1/2

Smejkal vs R Sanguineti, 1976
(A14) English, 45 moves, 1/2-1/2

Smyslov vs Portisch, 1976
(E17) Queen's Indian, 17 moves, 1/2-1/2

Round five
Ulf Andersson vs Geller, 1976
(A10) English, 74 moves, 1/2-1/2

O Castro vs V Liberzon, 1976
(B59) Sicilian, Boleslavsky Variation, 7.Nb3, 62 moves, 1/2-1/2

J Diaz Diaz vs Robert E Byrne, 1976
(B92) Sicilian, Najdorf, Opocensky Variation, 26 moves, 0-1

Gulko vs A Matanovic, 1976
(E21) Nimzo-Indian, Three Knights, 46 moves, 0-1

A Lombard vs Smyslov, 1976 
(E55) Nimzo-Indian, 4.e3, Gligoric System, Bronstein Variation, 19 moves, 1/2-1/2

Portisch vs Petrosian, 1976
(E54) Nimzo-Indian, 4.e3, Gligoric System, 60 moves, 1/2-1/2

K Rogoff vs Smejkal, 1976 
(A34) English, Symmetrical, 36 moves, 1-0

R Sanguineti vs Huebner, 1976
(B39) Sicilian, Accelerated Fianchetto, Breyer Variation, 20 moves, 1/2-1/2

Sosonko vs Csom, 1976 
(E06) Catalan, Closed, 5.Nf3, 27 moves, 1-0

Tal vs Larsen, 1976
(C96) Ruy Lopez, Closed, 36 moves, 1/2-1/2

Round six
Robert E Byrne vs V Liberzon, 1976 
(B68) Sicilian, Richter-Rauzer Attack, 7...a6 Defense, 9...Be7, 29 moves, 1-0

Csom vs O Castro, 1976
(C44) King's Pawn Game, 42 moves, 1-0

J Diaz Diaz vs R Sanguineti, 1976
(B46) Sicilian, Taimanov Variation, 24 moves, 0-1

Geller vs Sosonko, 1976
(D38) Queen's Gambit Declined, Ragozin Variation, 41 moves, 1-0

Huebner vs K Rogoff, 1976 
(A34) English, Symmetrical, 39 moves, 1/2-1/2

Larsen vs Portisch, 1976 
(A28) English, 67 moves, 1-0

A Matanovic vs Tal, 1976 
(B67) Sicilian, Richter-Rauzer Attack, 7...a6 Defense, 8...Bd7, 52 moves, 1/2-1/2

Petrosian vs A Lombard, 1976
(D43) Queen's Gambit Declined Semi-Slav, 29 moves, 1-0

Smejkal vs Gulko, 1976 
(A25) English, 40 moves, 1-0

Smyslov vs Ulf Andersson, 1976 
(A30) English, Symmetrical, 39 moves, 1-0

Round seven
Ulf Andersson vs Petrosian, 1976
(E17) Queen's Indian, 12 moves, 1/2-1/2

O Castro vs Geller, 1976 
(B31) Sicilian, Rossolimo Variation, 33 moves, 1-0

Gulko vs Huebner, 1976
(E21) Nimzo-Indian, Three Knights, 55 moves, 1/2-1/2

V Liberzon vs Csom, 1976
(B62) Sicilian, Richter-Rauzer, 49 moves, 1-0

A Lombard vs Larsen, 1976
(E45) Nimzo-Indian, 4.e3, Bronstein (Byrne) Variation, 40 moves, 0-1

Portisch vs A Matanovic, 1976
(A14) English, 41 moves, 1/2-1/2

K Rogoff vs J Diaz Diaz, 1976
(A41) Queen's Pawn Game (with ...d6), 31 moves, 1/2-1/2

R Sanguineti vs Robert E Byrne, 1976
(E99) King's Indian, Orthodox, Taimanov, 17 moves, 1/2-1/2

Sosonko vs Smyslov, 1976
(D98) Grunfeld, Russian, 20 moves, 1/2-1/2

Tal vs Smejkal, 1976
(C95) Ruy Lopez, Closed, Breyer, 41 moves, 1/2-1/2

Round eight
Robert E Byrne vs Csom, 1976
(B62) Sicilian, Richter-Rauzer, 74 moves, 0-1

J Diaz Diaz vs Gulko, 1976
(B60) Sicilian, Richter-Rauzer, 56 moves, 0-1

Geller vs V Liberzon, 1976
(D55) Queen's Gambit Declined, 92 moves, 1/2-1/2

Huebner vs Tal, 1976 
(A17) English, 41 moves, 0-1

Larsen vs Ulf Andersson, 1976
(A46) Queen's Pawn Game, 51 moves, 1/2-1/2

A Matanovic vs A Lombard, 1976
(B33) Sicilian, 24 moves, 1/2-1/2

Petrosian vs Sosonko, 1976 
(E48) Nimzo-Indian, 4.e3 O-O 5.Bd3 d5, 27 moves, 1-0

R Sanguineti vs K Rogoff, 1976
(A30) English, Symmetrical, 85 moves, 1-0

Smejkal vs Portisch, 1976
(A30) English, Symmetrical, 64 moves, 0-1

Smyslov vs O Castro, 1976 
(A04) Reti Opening, 31 moves, 1-0

Round nine
Ulf Andersson vs A Matanovic, 1976
(A14) English, 53 moves, 1-0

O Castro vs Petrosian, 1976 
(C00) French Defense, 52 moves, 1-0

Csom vs Geller, 1976
(A15) English, 18 moves, 1/2-1/2

Gulko vs R Sanguineti, 1976
(C67) Ruy Lopez, 62 moves, 1/2-1/2

V Liberzon vs Smyslov, 1976
(B17) Caro-Kann, Steinitz Variation, 61 moves, 1/2-1/2

A Lombard vs Smejkal, 1976
(D82) Grunfeld, 4.Bf4, 33 moves, 1/2-1/2

Portisch vs Huebner, 1976
(A17) English, 33 moves, 1/2-1/2

K Rogoff vs Robert E Byrne, 1976 
(E63) King's Indian, Fianchetto, Panno Variation, 23 moves, 1/2-1/2

Sosonko vs Larsen, 1976
(E00) Queen's Pawn Game, 26 moves, 1/2-1/2

Tal vs J Diaz Diaz, 1976 
(A57) Benko Gambit, 35 moves, 1-0

Round ten
Robert E Byrne vs Geller, 1976
(B62) Sicilian, Richter-Rauzer, 23 moves, 1/2-1/2

J Diaz Diaz vs Portisch, 1976
(B43) Sicilian, Kan, 5.Nc3, 34 moves, 0-1

Huebner vs A Lombard, 1976
(A15) English, 40 moves, 1-0

Larsen vs O Castro, 1976 
(A16) English, 36 moves, 1-0

A Matanovic vs Sosonko, 1976
(B70) Sicilian, Dragon Variation, 27 moves, 1/2-1/2

Petrosian vs V Liberzon, 1976
(D37) Queen's Gambit Declined, 25 moves, 1/2-1/2

K Rogoff vs Gulko, 1976
(A18) English, Mikenas-Carls, 20 moves, 1/2-1/2

R Sanguineti vs Tal, 1976
(A28) English, 34 moves, 1/2-1/2

Smejkal vs Ulf Andersson, 1976
(A36) English, 36 moves, 1-0

Smyslov vs Csom, 1976
(D63) Queen's Gambit Declined, Orthodox Defense, 21 moves, 1/2-1/2

Round eleven
Ulf Andersson vs Huebner, 1976
(A13) English, 45 moves, 1/2-1/2

O Castro vs A Matanovic, 1976
(C29) Vienna Gambit, 33 moves, 1/2-1/2

Gulko vs Robert E Byrne, 1976
(E21) Nimzo-Indian, Three Knights, 30 moves, 1/2-1/2

Csom vs Petrosian, 1976
(A14) English, 19 moves, 1/2-1/2

Geller vs Smyslov, 1976
(C43) Petrov, Modern Attack, 46 moves, 1/2-1/2

V Liberzon vs Larsen, 1976 
(B47) Sicilian, Taimanov (Bastrikov) Variation, 37 moves, 0-1

A Lombard vs J Diaz Diaz, 1976
(E00) Queen's Pawn Game, 25 moves, 1-0

Portisch vs R Sanguineti, 1976
(E53) Nimzo-Indian, 4.e3, 36 moves, 0-1

Sosonko vs Smejkal, 1976
(A62) Benoni, Fianchetto Variation, 33 moves, 1-0

Tal vs K Rogoff, 1976 
(B93) Sicilian, Najdorf, 6.f4, 45 moves, 1/2-1/2

Round twelve
Robert E Byrne vs Smyslov, 1976 
(C19) French, Winawer, Advance, 37 moves, 1-0

J Diaz Diaz vs Ulf Andersson, 1976 
(B46) Sicilian, Taimanov Variation, 49 moves, 0-1

Gulko vs Tal, 1976
(E21) Nimzo-Indian, Three Knights, 15 moves, 1/2-1/2

Huebner vs Sosonko, 1976
(E15) Queen's Indian, 25 moves, 1/2-1/2

Larsen vs Csom, 1976
(D02) Queen's Pawn Game, 61 moves, 1/2-1/2

A Matanovic vs V Liberzon, 1976
(B83) Sicilian, 45 moves, 1/2-1/2

Petrosian vs Geller, 1976
(E17) Queen's Indian, 16 moves, 1/2-1/2

K Rogoff vs Portisch, 1976 
(A29) English, Four Knights, Kingside Fianchetto, 33 moves, 0-1

R Sanguineti vs A Lombard, 1976
(D47) Queen's Gambit Declined Semi-Slav, 41 moves, 1/2-1/2

Smejkal vs O Castro, 1976
(A10) English, 41 moves, 1-0

Round thirteen
Ulf Andersson vs R Sanguineti, 1976 
(E17) Queen's Indian, 108 moves, 1-0

O Castro vs Huebner, 1976
(C00) French Defense, 36 moves, 1/2-1/2

Csom vs A Matanovic, 1976
(A15) English, 67 moves, 0-1

Geller vs Larsen, 1976
(B40) Sicilian, 13 moves, 1/2-1/2

V Liberzon vs Smejkal, 1976
(C95) Ruy Lopez, Closed, Breyer, 43 moves, 1/2-1/2

A Lombard vs K Rogoff, 1976 
(E00) Queen's Pawn Game, 26 moves, 0-1

Portisch vs Gulko, 1976
(A25) English, 65 moves, 1-0

Smyslov vs Petrosian, 1976
(D27) Queen's Gambit Accepted, Classical, 16 moves, 1/2-1/2

Sosonko vs J Diaz Diaz, 1976
(A58) Benko Gambit, 41 moves, 1-0

Tal vs Robert E Byrne, 1976 
(B53) Sicilian, 22 moves, 1-0

Round fourteen
Robert E Byrne vs Petrosian, 1976
(C41) Philidor Defense, 17 moves, 1/2-1/2

J Diaz Diaz vs O Castro, 1976
(A45) Queen's Pawn Game, 56 moves, 1/2-1/2

Gulko vs A Lombard, 1976 
(D26) Queen's Gambit Accepted, 53 moves, 1-0

Huebner vs V Liberzon, 1976
(D58) Queen's Gambit Declined, Tartakower (Makagonov-Bondarevsky) Syst, 55 moves, 1-0

Larsen vs Smyslov, 1976
(C28) Vienna Game, 43 moves, 1/2-1/2

A Matanovic vs Geller, 1976 
(B62) Sicilian, Richter-Rauzer, 41 moves, 0-1

K Rogoff vs Ulf Andersson, 1976
(A16) English, 29 moves, 1/2-1/2

R Sanguineti vs Sosonko, 1976
(A17) English, 41 moves, 1/2-1/2

Smejkal vs Csom, 1976
(D60) Queen's Gambit Declined, Orthodox Defense, 41 moves, 1-0

Tal vs Portisch, 1976 
(C91) Ruy Lopez, Closed, 37 moves, 1-0

Round fifteen
Ulf Andersson vs Gulko, 1976
(A26) English, 32 moves, 1-0

O Castro vs R Sanguineti, 1976
(B56) Sicilian, 17 moves, 1/2-1/2

Csom vs Huebner, 1976
(A14) English, 41 moves, 0-1

Geller vs Smejkal, 1976
(A30) English, Symmetrical, 43 moves, 1/2-1/2

V Liberzon vs J Diaz Diaz, 1976
(E81) King's Indian, Samisch, 55 moves, 1/2-1/2

A Lombard vs Tal, 1976
(B08) Pirc, Classical, 57 moves, 0-1

Petrosian vs Larsen, 1976 
(D60) Queen's Gambit Declined, Orthodox Defense, 56 moves, 1-0

Portisch vs Robert E Byrne, 1976
(D37) Queen's Gambit Declined, 64 moves, 1/2-1/2

Smyslov vs A Matanovic, 1976
(A50) Queen's Pawn Game, 43 moves, 1-0

Sosonko vs K Rogoff, 1976
(E06) Catalan, Closed, 5.Nf3, 29 moves, 1/2-1/2

Round sixteen
Robert E Byrne vs Larsen, 1976 
(B42) Sicilian, Kan, 52 moves, 1-0

J Diaz Diaz vs Csom, 1976
(D63) Queen's Gambit Declined, Orthodox Defense, 49 moves, 1/2-1/2

Gulko vs Sosonko, 1976
(E53) Nimzo-Indian, 4.e3, 51 moves, 1/2-1/2

Huebner vs Geller, 1976
(A30) English, Symmetrical, 22 moves, 1/2-1/2

A Matanovic vs Petrosian, 1976
(B17) Caro-Kann, Steinitz Variation, 18 moves, 1/2-1/2

Portisch vs A Lombard, 1976 
(D43) Queen's Gambit Declined Semi-Slav, 35 moves, 0-1

K Rogoff vs O Castro, 1976 
(A15) English, 29 moves, 1-0

R Sanguineti vs V Liberzon, 1976 
(E73) King's Indian, 23 moves, 0-1

Smejkal vs Smyslov, 1976
(A28) English, 41 moves, 1/2-1/2

Tal vs Ulf Andersson, 1976
(A64) Benoni, Fianchetto, 11...Re8, 26 moves, 1/2-1/2

Round seventeen
Ulf Andersson vs Portisch, 1976
(A34) English, Symmetrical, 39 moves, 0-1

O Castro vs Gulko, 1976
(A07) King's Indian Attack, 29 moves, 0-1

Csom vs R Sanguineti, 1976
(A04) Reti Opening, 59 moves, 1-0

Geller vs J Diaz Diaz, 1976
(E81) King's Indian, Samisch, 35 moves, 1-0

Larsen vs A Matanovic, 1976
(C28) Vienna Game, 39 moves, 1-0

V Liberzon vs K Rogoff, 1976 
(B17) Caro-Kann, Steinitz Variation, 39 moves, 0-1

A Lombard vs Robert E Byrne, 1976 
(D63) Queen's Gambit Declined, Orthodox Defense, 43 moves, 1/2-1/2

Petrosian vs Smejkal, 1976
(E66) King's Indian, Fianchetto, Yugoslav Panno, 24 moves, 1/2-1/2

Smyslov vs Huebner, 1976
(A05) Reti Opening, 14 moves, 1/2-1/2

Sosonko vs Tal, 1976
(E96) King's Indian, Orthodox, 7...Nbd7, Main line, 16 moves, 1/2-1/2

Round eighteen
Robert E Byrne vs A Matanovic, 1976
(C95) Ruy Lopez, Closed, Breyer, 60 moves, 1-0

J Diaz Diaz vs Smyslov, 1976 
(A45) Queen's Pawn Game, 46 moves, 1/2-1/2

Gulko vs V Liberzon, 1976
(D00) Queen's Pawn Game, 17 moves, 1/2-1/2

Huebner vs Petrosian, 1976 
(B06) Robatsch, 41 moves, 0-1

A Lombard vs Ulf Andersson, 1976
(A46) Queen's Pawn Game, 51 moves, 0-1

Portisch vs Sosonko, 1976
(E53) Nimzo-Indian, 4.e3, 25 moves, 1-0

K Rogoff vs Csom, 1976 
(A19) English, Mikenas-Carls, Sicilian Variation, 78 moves, 0-1

R Sanguineti vs Geller, 1976
(E99) King's Indian, Orthodox, Taimanov, 24 moves, 1/2-1/2

Smejkal vs Larsen, 1976
(A35) English, Symmetrical, 59 moves, 0-1

Tal vs O Castro, 1976
(B00) Uncommon King's Pawn Opening, 28 moves, 1-0

Round nineteen
Ulf Andersson vs Robert E Byrne, 1976
(D15) Queen's Gambit Declined Slav, 59 moves, 1/2-1/2

O Castro vs Portisch, 1976
(B40) Sicilian, 28 moves, 0-1

Csom vs Gulko, 1976 
(A10) English, 42 moves, 1-0

Geller vs K Rogoff, 1976 
(B17) Caro-Kann, Steinitz Variation, 28 moves, 1/2-1/2

Larsen vs Huebner, 1976 
(A15) English, 25 moves, 1/2-1/2

V Liberzon vs Tal, 1976
(B67) Sicilian, Richter-Rauzer Attack, 7...a6 Defense, 8...Bd7, 13 moves, 1/2-1/2

A Matanovic vs Smejkal, 1976
(B85) Sicilian, Scheveningen, Classical, 12 moves, 1/2-1/2

Petrosian vs J Diaz Diaz, 1976 
(E81) King's Indian, Samisch, 52 moves, 1-0

Smyslov vs R Sanguineti, 1976
(B23) Sicilian, Closed, 28 moves, 1/2-1/2

Sosonko vs A Lombard, 1976
(D43) Queen's Gambit Declined Semi-Slav, 53 moves, 1/2-1/2

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