E55e — Nimzo-Indian: Main Line, Bronstein, 9.Qe2 a6

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nf3 d5 6.Bd3 c5 7.O-O dxc4 8.Bxc4 Nbd7 9.Qe2 a6 * ○ Trait aux Blancs

Ouverture — Centre semi-ouvert

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Avantages : majorité centre (2v1), case forte e5, Bc4 actif, paire de fous, colonne c.
Faiblesses adverses : arriéré b7, Bc8 enfermé.
Problèmes : Bc1 enfermé.
Plans :
● Bd2 — Développer Bc1
● h3 — Empêcher ...Bg4
● Rc — Tour sur colonne c

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Avantages : majorité aile_dame (3v2), avant-poste d5(C), paire de fous, colonne d.
Faiblesses adverses : Bc1 enfermé.
Problèmes : Bc8 enfermé, arriéré b7.
Plans :
● b6+Bb7 — PRIORITÉ: libérer le Bc8 (b6+Bb7, ...Bg4, ...Bf5)
● ...Bg4 — Clouer Nf3
● ...e5 — Rupture
● ...Rd — Tour sur colonne d

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

E55e — Main Line Bronstein

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nf3 d5 6.Bd3 c5 7.O-O dxc4 8.Bxc4 Nbd7 9.Qe2 a6

Eval: [+0.09]

Les coups candidats

10.a3 — 43.0% (131 parties)

Ambassadeurs : Polugaevsky, Lev (3x), Portisch, Ferenc (3x), Donner, Jan-Hein (3x), Uhlmann, Wolfgang (2x), Reshevsky, Samuel (2x), Pritchett, Craig W (2x), Hein-Unzicker, Wolfgang (2x), Johansson, Martin 1979 (2x)

10.a4 — 38.0% (116 parties)

Ambassadeurs : Panno, Oscar (4x), Antoshin, Vladimir S (3x), Donner, Jan-Hein (3x), Zurakhov, Vladlen Y (3x), Hybl, Jakub (3x), Azmaiparashvili, Zurab (3x), Boleslavsky, Isaac (2x), Flum, Gerhard (2x)

10.Rd1 — 8.9% (27 parties)

Ambassadeurs : Kosten, Anthony C. (2x), Sofrevski, Jovan (1x), Puc, Stojan (1x), Kazic, Bozidar (1x), Borsony, Valt (1x), Geller, Efim P. (1x), Boleslavsky, Isaac (1x), Raisa, Unto (1x)

10.Bd3 — 8.5% (26 parties)

Ambassadeurs : Lombard, Andre (2x), Smyslov, Vasily (2x), Petersen, Flemming Petri (1x), Johansson, Ingi Randver (1x), Smyslov, Vladimir (1x), Lombardy, William J (1x), Ogaard, Leif (1x), Thorbergsson, Freysteinn (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	10.a3	10.a4	10.Rd1	10.Bd3
<1800	2	50%	50%	—	—
1800-2200	42	50%	31%	7%	7%
2200-2600	134	43%	33%	10%	12%
2600+	10	40%	50%	—	10%

Évolution par décennie (% des parties)

Décennie	N parties	10.a3	10.a4	10.Rd1	10.Bd3
1950s	19	37%	37%	26%	—
1960s	62	40%	52%	6%	2%
1970s	40	32%	45%	8%	12%
1980s	24	62%	38%	—	—
1990s	23	35%	26%	22%	17%
2000s	48	44%	27%	4%	25%
2010s	82	48%	35%	9%	5%
2020s	7	43%	29%	14%	—

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
10.a3	48%	43%	▼ -4.7%
10.a4	35%	29%	▼ -6.8%
10.Rd1	9%	14%	▲ +5.7%
10.Bd3	5%	0%	▼ -4.9%

Joueurs célèbres

Champions du monde dans cette position

Smyslov, Vladimir — 2 parties
Kasparov, Garry — 2 parties
Karpov, Aleksandr — 1 partie

Parties historiques

10.a3 — 43.0% (131 parties)

1955 — Udovcic, Mijo vs Karaklajic, Nikola — 1-0 — Zagreb CRO
1956 — Middleton, Ian vs Karaklajic, Nikola — 0-1 — Moscow RUS
1957 — Turner, Abe J vs Bisguier, Arthur B — 1-0 — New York, NY USA
1957 — Lutikov, Anatoly S vs Gipslis, Aivars — 1/2-1/2 — Sverdlovsk
1958 — Uhlmann, Wolfgang vs Handel, Horst — 1-0 — GDR-ch Schkopau GER

10.a4 — 38.0% (116 parties)

1957 — Najdorf, Miguel vs Kotov Lundqvist, Alex — 1-0 — Mar del Plata ARG
1957 — Kluger, Gyula vs Rejfir, Josef — 1-0 — Varna BUL
1957 — Najdorf, Miguel vs Kotov Lundqvist, Alex — 1-0 — Mar del Plata ARG
1958 — Boleslavsky, Isaac vs Zurakhov, Vladlen Y — 1-0 — ?
1958 — Boleslavsky, Isaac vs Zurakhov, Vladlen Y — 1-0 — Kiev UKR

10.Rd1 — 8.9% (27 parties)

1953 — Bolbochan, J. vs Rossetto, Hector — 1/2-1/2 — Mar del Plata ARG
1955 — Minev, Nikolay N vs Karaklajic, Nikola — 1/2-1/2 — Zagreb CRO
1957 — Geller, Efim P. vs Boleslavsky, Isaac — 1/2-1/2 — Kiev UKR
1958 — Sofrevski, Jovan vs Puc, Stojan — 1/2-1/2 — Sarajevo BIH
1958 — Kazic, Bozidar vs Borsony, Valt — 1/2-1/2 — ?

10.Bd3 — 8.5% (26 parties)

1967 — Petersen, Flemming Petri vs Johansson, Ingi Randver — 0-1 — Halle GER
1970 — Gligorić, Svetozar vs Unzicker, Wolfgang — 1/2-1/2 — Lugano SUI
1974 — Ogaard, Leif vs Thorbergsson, Freysteinn — 1-0 — Reykjavik ISL
1976 — Lombard, Andre vs Smyslov, Vladimir — 1/2-1/2 — Biel izt
1976 — Lombard, Andre vs Smyslov, Vasily — 1/2-1/2 — Biel IZ

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	● b7
Chaînes	● f2→e3, e3→d4	● b7→a6, f7→e6
Passés	—	—
Majorité	● centre 2v1	● aile_dame 3v2

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● e5 (2v1)	—
Cases faibles	—	—
Centre	● d4 (2v1), ● e5 (2v1)	—

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● c	● d

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 1)
Bc4	● Bc4 Actif (mob. 6)
Bb4		● Bb4 Ok (mob. 3)
Bc8		● Bc8 Non développé (mob. 0)
Paire de fous	● Oui	● Oui
Non développées	2 (c1, a1)	2 (c8, a8)

Sécurité du roi

	♔ Blancs	♚ Noirs
Statut	● Roqué	● Roqué
Droits de roque	—	—

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	semi-ouvert
Ruptures	● d4-d5, ● e3-e4	● …e6-e5

Partie
1953 Mar del Plata – Round 14 – Bolbochan, J. – 1/2-1/2 – Rossetto, Hector – G142 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 dxc4 7. Bxc4 a6 8. O-O c5 9. Qe2 Nbd7 10. Rd1 b5
1955 Zagreb – Round 6 – Minev, Nikolay N – 1/2-1/2 – Karaklajic, Nikola – G70 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. e3 O-O 6. Bd3 c5 7. O-O dxc4 8. Bxc4 Nbd7 9. Qe2 a6 10. Rd1 Qc7
1956 Moscow olm prel – Round 2 – Middleton, Ian – 0-1 – Karaklajic, Nikola – G48 1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. Nc3 Bb4 5. e3 O-O 6. Bd3 c5 7. O-O dxc4 8. Bxc4 Nbd7 9. Qe2 a6 10. a3 cxd4
1957 Mar del Plata – Round 1 – Najdorf, Miguel – 1-0 – Kotov Lundqvist, Alex – G11 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. e3 O-O 6. Bd3 c5 7. O-O dxc4 8. Bxc4 Nbd7 9. Qe2 a6 10. a4 Nb6
1957 Mar del Plata – Round 15 – Najdorf, Miguel – 1-0 – Kotov Lundqvist, Alex – G128 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5 6. Bd3 c5 7. O-O dxc4 8. Bxc4 Nbd7 9. Qe2 a6 10. a4 Nb6
1957 New York ch-USA – Round 10 – Turner, Abe J – 1-0 – Bisguier, Arthur B – G60 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Nf3 O-O 6. Bd3 d5 7. O-O dxc4 8. Bxc4 Nbd7 9. Qe2 a6 10. a3 cxd4
1957 URS Ch, semi final – Round 10 – Lutikov, Anatoly S – 1/2-1/2 – Gipslis, Aivars – G109 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. e3 O-O 6. Bd3 c5 7. O-O dxc4 8. Bxc4 Nbd7 9. Qe2 a6 10. a3 Ba5
1957 URS Ch, semi final – Round 17 – Geller, Efim P – 1/2-1/2 – Boleslavsky, Isaac – G151 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Nf3 d5 6. Bd3 O-O 7. O-O dxc4 8. Bxc4 Nbd7 9. Qe2 a6 10. Rd1 b5
1958 GDR Ch Schkopau GER – Round 7 – Uhlmann, Wolfgang – 1-0 – Handel, Horst – G41 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Nf3 O-O 6. Bd3 d5 7. O-O dxc4 8. Bxc4 Nbd7 9. Qe2 a6 10. a3 Ba5
1958 Munich olm prel – Round 7 – Dittmann, Sieghart – 1/2-1/2 – Eliskases, Erich – G56 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O dxc4 8. Bxc4 Nbd7 9. Qe2 a6 10. a4 cxd4
1958 YUG Ch 13th – Round 10 – Sofrevski, Jovan – 1/2-1/2 – Puc, Stojan – G56 1. c4 Nf6 2. Nc3 e6 3. Nf3 d5 4. d4 Bb4 5. e3 c5 6. Bd3 a6 7. O-O dxc4 8. Bxc4 O-O 9. Qe2 Nbd7 10. Rd1 b5
1958 YUG Ch 13th – Round 8 – Trifunovic, Petar – 1/2-1/2 – Puc, Stojan – G42 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 d5 5. Nf3 c5 6. Bd3 dxc4 7. Bxc4 a6 8. O-O O-O 9. Qe2 Nbd7 10. a3 Ba5
1959 Asztalos Memorial 2nd – Round 8 – Uhlmann, Wolfgang – 1-0 – Beni, Alfred – G14 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 c5 6. Bd3 d5 7. O-O dxc4 8. Bxc4 Nbd7 9. Qe2 a6 10. a3 cxd4
1959 Marianske Lazne – Round 15 – Kozma, Julius – 1/2-1/2 – Rabar, Braslav – G101 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 c5 6. Bd3 d5 7. O-O dxc4 8. Bxc4 Nbd7 9. Qe2 a6 10. a4 cxd4
1960 Moscow CCCT – Round 6 – Polugaevsky, Lev – 0-1 – Kholmov, Ratmir D – G31 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. Nf3 d5 7. O-O dxc4 8. Bxc4 Nbd7 9. Qe2 a6 10. a3 Ba5
1960 URS Ch sf – Round 16 – Antoshin, Vladimir S – 1/2-1/2 – Polugaevsky, Lev – G126 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 c5 6. Bd3 d5 7. O-O dxc4 8. Bxc4 Nbd7 9. Qe2 a6 10. a3 Ba5
1961 Soviet-ch28 – Round 16 – Polugaevsky, Lev – 0-1 – Petrosian, Tigran A. – G26 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O dxc4 8. Bxc4 Nbd7 9. Qe2 a6 10. a3 cxd4
1961 Utrecht – Round 7 – Donner, Jan-Hein – 1/2-1/2 – O'Kelly, Albéric de Galway – G32 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 d5 6. Nf3 O-O 7. O-O dxc4 8. Bxc4 Nbd7 9. Qe2 a6 10. a4 cxd4
1961 Zagreb – Round 13 – Stupica, Janez – 1/2-1/2 – Rabar, Braslav – G106 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O dxc4 8. Bxc4 Nbd7 9. Qe2 a6 10. a4 cxd4
1962 Varna olm – Round 5 – Donner, Jan-Hein – 0-1 – Darga, Klaus – G218 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 d5 6. Nf3 O-O 7. O-O dxc4 8. Bxc4 Nbd7 9. Qe2 a6 10. a4 cxd4
1963 Alekhine Memorial – Round 1 – Antoshin, Vladimir S – 1-0 – Keres, Paul – G4 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O dxc4 8. Bxc4 Nbd7 9. Qe2 a6 10. a4 Qc7
1963 Capablanca Memorial – Round 12 – Cobo Arteaga, Eldis – 0-1 – Darga, Klaus – G110 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Nf3 O-O 6. Bd3 d5 7. O-O dxc4 8. Bxc4 Nbd7 9. Qe2 a6 10. Rd1 b5
1963 Moscow RUS – Round ? – Antoshin, Vladimir S – 1-0 – Keres, Paul Petrovich – G22 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O dxc4 8. Bxc4 Nbd7 9. Qe2 a6 10. a4 Qc7
1963 New York ch-USA – Round 9 – Evans, Larry – 1/2-1/2 – Reshevsky, Samuel – G36 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. Nf3 d5 7. O-O dxc4 8. Bxc4 Nbd7 9. Qe2 a6 10. a3 cxd4
1964 Reykjavik – Round 1 – Olafsson, Fridrik – 1-0 – Thorbergsson, Freysteinn – G3 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 c5 5. e3 O-O 6. Bd3 d5 7. O-O dxc4 8. Bxc4 Nbd7 9. Qe2 a6 10. a3 cxd4
1964 Reykjavik – Round 9 – Palmason, Gudmundur – 1/2-1/2 – Thorbergsson, Freysteinn – G49 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. Nf3 d5 7. O-O dxc4 8. Bxc4 Nbd7 9. Qe2 a6 10. a4 cxd4
1964 Tel Aviv olm prel – Round 6 – Addison, Wiliam G – 1-0 – Vinje, Arne – G217 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 c5 6. Bd3 d5 7. O-O dxc4 8. Bxc4 Nbd7 9. Qe2 a6 10. Rd1 Qc7
1965 Berlin tt – Round 1 – Donner, Jan-Hein – 1/2-1/2 – Unzicker, Wolfgang – G2 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O dxc4 8. Bxc4 Nbd7 9. Qe2 a6 10. a4 b6
1965 Hamburg etc – Round 9 – Donner, Jan-Hein – 1/2-1/2 – Hein-Unzicker, Wolfgang – G109 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O dxc4 8. Bxc4 Nbd7 9. Qe2 a6 10. a3 Ba5
1965 HUN-ch21 – Round 1 – Portisch, Ferenc – 0-1 – Varnusz, Egon – G28 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O dxc4 8. Bxc4 Nbd7 9. Qe2 a6 10. a4 Qc7
1965 Hungary – Round 1 – Farago, Ivan – 0-1 – Varnusz, Egon – G37 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O dxc4 8. Bxc4 Nbd7 9. Qe2 a6 10. a4 b6
1966 Hungary – Round 1 – Portisch, Ferenc – 0-1 – Tompa, Janos – G31 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 d5 6. Nf3 O-O 7. O-O dxc4 8. Bxc4 Nbd7 9. Qe2 a6 10. a3 cxd4
1966 La Habana olm fin-A – Round 3 – Panno, Oscar – 1/2-1/2 – Szabo, Ladislav – G46 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O dxc4 8. Bxc4 Nbd7 9. Qe2 a6 10. a4 cxd4
1966 La Habana olm fin-B – Round 10 – Vranesic, Zvonko – 1/2-1/2 – Johansson, Martin 1979 – G141 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O dxc4 8. Bxc4 Nbd7 9. Qe2 a6 10. a3 cxd4
1966 Panamerican – Round 1 – Yepez, Olavo – 1/2-1/2 – Pereira Cuellar, Miguel – G17 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5 6. Bd3 c5 7. O-O dxc4 8. Bxc4 Nbd7 9. Qe2 a6 10. a3 cxd4
1966 Santa Monica – Round 1 – Donner, Jan-Hein – 1/2-1/2 – Hein-Unzicker, Wolfgang – G3 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O dxc4 8. Bxc4 Nbd7 9. Qe2 a6 10. a3 Ba5
1966 Santa Monica – Round 16 – Reshevsky, Samuel – 1/2-1/2 – Unzicker, Wolfgang – G67 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O dxc4 8. Bxc4 Nbd7 9. Qe2 a6 10. a3 cxd4
1966 URS Team Ch – Round ? – Osnos, Viatcheslav – 1/2-1/2 – Giterman, Shlomo – G108 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. O-O dxc4 8. Bxc4 Nbd7 9. Qe2 a6 10. a3 cxd4
1967 Budapest Bajnogsag 8th – Round 4 – Portisch, Ferenc – 1/2-1/2 – Varnusz, Egon – G22 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O dxc4 8. Bxc4 Nbd7 9. Qe2 a6 10. a3 cxd4
1967 Dundee – Round 3 – Gligorić, Svetozar – 1-0 – Pritchett, Craig W – G7 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O dxc4 8. Bxc4 Nbd7 9. Qe2 a6 10. a3 cxd4
1967 October Revolution 50 – Round 1 – Kortchnoi, V. – 1-0 – Shamkovich, L. – G22 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 c5 5. e3 O-O 6. Bd3 d5 7. O-O dxc4 8. Bxc4 Nbd7 9. Qe2 a6 10. a4 cxd4
1967 Sweden (ch) – Round 2 – Jansson, Borje – 1/2-1/2 – Johansson, Martin 1979 – G6 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5 6. Be2 dxc4 7. Bxc4 c5 8. O-O Nbd7 9. Qe2 a6 10. a3 Ba5
1968 Capablanca Memorial – Round 1 – Antoshin, Vladimir S – 1/2-1/2 – Jimenez Zerquera, Eleazar – G13 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 c5 5. e3 O-O 6. Bd3 d5 7. O-O dxc4 8. Bxc4 Nbd7 9. Qe2 a6 10. a4 Qc7
1968 Cardenas/Matanzas/Santa Clara – Round 10 – Yepez, Olavo – 1/2-1/2 – Cobo Arteaga, Eldis – G47 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. O-O dxc4 8. Bxc4 Nbd7 9. Qe2 a6 10. a4 b6
1968 CSR Ch – Round 9 – Kozma, Julius – 1/2-1/2 – Augustin, Josef – G76 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. O-O dxc4 8. Bxc4 Nbd7 9. Qe2 a6 10. a3 Ba5
1968 Lugano olm – Round 1 – Portisch, Lajos – 1-0 – Panno, Oscar – G1 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. Nf3 d5 7. O-O dxc4 8. Bxc4 Nbd7 9. Qe2 a6 10. a4 cxd4
1968 Olympiad Final A – Round 1 – Panno, Oscar – 1/2-1/2 – Brinck-Claussen, Bjorn – G9 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O dxc4 8. Bxc4 Nbd7 9. Qe2 a6 10. a4 cxd4
1969 Moskou ch-URS – Round 1 – Furman, Slavomir – 1/2-1/2 – Platonov, Igor – G48 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. O-O dxc4 8. Bxc4 Nbd7 9. Qe2 a6 10. a3 Ba5
1969 Zagreb – Round 1 – Udovcic, Mijo – 0-1 – Damjanovic, Marko – G5 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 d5 6. Nf3 O-O 7. O-O dxc4 8. Bxc4 Nbd7 9. Qe2 a6 10. a4 b6
1974 Manila – Round 10 – Kraidman, Yair – 1/2-1/2 – Andersson, Ulf – G51 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. Nf3 d5 7. O-O dxc4 8. Bxc4 Nbd7 9. Qe2 a6 10. a4 cxd4
41. Olympiad Open 2014 – Round 5.18 – Sambuev, Bator – 1-0 – Akobian, Varuzhan – G332 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O dxc4 8. Bxc4 Nbd7 9. Qe2 a6 10. a3 Ba5
42. Olympiad 2016 – Round 2.31 – Bogner, Sebastian – 1/2-1/2 – Mareco, Sandro – G129 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O dxc4 8. Bxc4 Nbd7 9. Qe2 a6 10. a3 Ba5
Rio de Janeiro Interzonal 1979 – Round 11 – Portisch, Lajos – 1-0 – Balashov, Yuri S – G32 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. O-O dxc4 8. Bxc4 Nbd7 9. Qe2 a6 10. a4 Qc7
XXVII SuperGM 2010 – Round 2 – Grischuk, Alexander – 1-0 – Gelfand, Boris – G4 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O dxc4 8. Bxc4 Nbd7 9. Qe2 a6 10. a4 cxd4

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