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

J Diaz vs Larsen, 1976
(B28) Sicilian, O'Kelly Variation, 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 H Castro Rojas, 1976 
(D87) Grunfeld, Exchange, 44 moves, 0-1

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

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

O H Castro Rojas vs 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

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

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

Petrosian vs 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
Andersson vs Liberzon, 1976
(A26) English, 20 moves, 1/2-1/2

J 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 R 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

Rogoff vs Larsen, 1976
(B27) Sicilian, 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 H Castro Rojas, 1976
(D98) Grunfeld, Russian, 37 moves, 1/2-1/2

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

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

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

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

Liberzon vs Sosonko, 1976
(A13) English, 10 moves, 1/2-1/2

A Matanovic vs 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
Andersson vs Geller, 1976 
(A10) English, 74 moves, 1/2-1/2

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

J Diaz vs R 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

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
R Byrne vs Liberzon, 1976 
(B68) Sicilian, Richter-Rauzer Attack, 7...a6 Defense, 9...Be7, 29 moves, 1-0

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

J 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 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 Andersson, 1976 
(A30) English, Symmetrical, 39 moves, 1-0

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

O H Castro Rojas 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

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

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

R Sanguineti vs R 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
R Byrne vs Csom, 1976 
(B62) Sicilian, Richter-Rauzer, 74 moves, 0-1

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

Geller vs Liberzon, 1976
(D31) Queen's Gambit Declined, 92 moves, 1/2-1/2

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

Larsen vs 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 Rogoff, 1976 
(A30) English, Symmetrical, 85 moves, 1-0

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

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

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

O H Castro Rojas 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

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

Rogoff vs R 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, 1976 
(A57) Benko Gambit, 35 moves, 1-0

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

J 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 H Castro Rojas, 1976 
(A16) English, 36 moves, 1-0

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

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

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

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

Gulko vs R 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

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

A Lombard vs J Diaz, 1976
(A60) Benoni Defense, 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 Rogoff, 1976 
(B93) Sicilian, Najdorf, 6.f4, 45 moves, 1/2-1/2

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

J Diaz vs 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 Liberzon, 1976
(B83) Sicilian, 45 moves, 1/2-1/2

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

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 H Castro Rojas, 1976
(A10) English, 41 moves, 1-0

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

O H Castro Rojas 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
(A07) King's Indian Attack, 13 moves, 1/2-1/2

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

A Lombard vs Rogoff, 1976 
(A60) Benoni Defense, 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, 1976
(A58) Benko Gambit, 41 moves, 1-0

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

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

J Diaz vs O H Castro Rojas, 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 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

Rogoff vs 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
Andersson vs Gulko, 1976 
(A26) English, 32 moves, 1-0

O H Castro Rojas 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

Liberzon vs J 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 R 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 Rogoff, 1976
(E06) Catalan, Closed, 5.Nf3, 29 moves, 1/2-1/2

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

J 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

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

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

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

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

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

O H Castro Rojas 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, 1976
(E81) King's Indian, Samisch, 35 moves, 1-0

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

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

A Lombard vs R 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
R Byrne vs A Matanovic, 1976
(C95) Ruy Lopez, Closed, Breyer, 60 moves, 1-0

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

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

Huebner vs Petrosian, 1976 
(A04) Reti Opening, 41 moves, 0-1

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

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

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 H Castro Rojas, 1976 
(B00) Uncommon King's Pawn Opening, 28 moves, 1-0

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

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

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

Geller vs 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

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
(B47) Sicilian, Taimanov (Bastrikov) Variation, 12 moves, 1/2-1/2

Petrosian vs J 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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