A17j — English: Nimzo-English, 4.Qc2

1.c4 Nf6 2.Nc3 e6 3.Nf3 Bb4 4.Qc2 * ● Trait aux Noirs

Ouverture — Centre semi-ouvert

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Avantages : case forte e4, case forte b5, paire de fous.
Faiblesses adverses : Bc8 enfermé, roi noir au centre.
Problèmes : roi au centre, Bc1 enfermé, Bf1 enfermé, 4 pièces non développées (C1, F1, A1, H1).
Plans :
● O-O — Mettre le roi en sécurité, connecter les tours
● e4 — Centre d4+e4, menace e5, libère Bf1
● d3 — Libérer Bc1
● h3 — Empêcher ...Bg4

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Avantages : Bb4 actif, paire de fous.
Faiblesses adverses : Bc1 enfermé, Bf1 enfermé, roi blanc au centre.
Problèmes : roi au centre, Bc8 enfermé, 4 pièces non développées (B8, C8, A8, H8).
Plans :
● O-O — Mettre le roi en sécurité, connecter les tours
● ...d6 — Libérer Bc8
● ...Nc6 — Développer Nb8
● ...Bg4 — Clouer Nf3
● ...c5 — Rupture

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

A17j — Nimzo-English

1.c4 Nf6 2.Nc3 e6 3.Nf3 Bb4 4.Qc2

Eval: [+0.23]

Les coups candidats

4…O-O — 62.3% (2729 parties) →

Ambassadeurs : Rozentalis, Eduardas (35x), Pogorelov, Ruslan (28x), Uhlmann, Wolfgang (24x), Korchnoi, Viktor (21x), Kramnik, Vladimir (19x), Timman, Jan H (18x), Drasko, Milan (18x), Kholmov, Ratmir D (15x)

4…c5 — 21.9% (959 parties)

Ambassadeurs : Romanishin, Oleg M (36x), Uhlmann, Wolfgang (9x), Naiditsch, Arkadij (9x), Balashov, Yuri (7x), Csom, Istvan (7x), Cebalo, Miso (6x), Illescas Cordoba, Miguel (6x), Shchekachev, Andrei (6x)

4…b6 — 7.4% (325 parties)

Ambassadeurs : Nestorovic, Katarina (5x), Dr. Beckhuis, Gernod (3x), Milos, Gilberto (3x), Vul, Arkadi Eremeevich (3x), Sunye Neto, Jaime (2x), Swoboda, Ernst (2x), Gheorghiu, Florin (2x), Garcia Palermo, Carlos Horacio (2x)

4…d5 — 3.0% (131 parties)

Ambassadeurs : Eingorn, Vereslav S (2x), Dambrauskas, Virginijus (2x), Stips, Felix (2x), Can, Isik (2x), Pachman, Ludek (1x), Polugaevsky, Lev (1x), Mueller von Blumencron, Heiko (1x), Fracke (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	4…O-O	4…c5	4…b6	4…d5
<1800	40	60%	12%	10%	8%
1800-2200	645	64%	14%	11%	4%
2200-2600	3062	62%	23%	7%	3%
2600+	225	69%	24%	4%	1%

Évolution par décennie (% des parties)

Décennie	N parties	4…O-O	4…c5	4…b6	4…d5
1920s	2	—	100%	—	—
1940s	3	67%	—	—	—
1950s	9	44%	33%	—	—
1960s	36	50%	42%	—	3%
1970s	207	47%	40%	5%	4%
1980s	352	65%	21%	9%	3%
1990s	682	62%	23%	9%	3%
2000s	1401	63%	20%	9%	2%
2010s	1363	63%	21%	6%	3%
2020s	323	63%	19%	4%	6%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
4…O-O	63%	63%	▼ -0.9%
4…c5	21%	19%	▼ -2.4%
4…b6	6%	4%	▼ -1.9%
4…d5	3%	6%	▲ +2.9%

Joueurs célèbres

Champions du monde dans cette position

Kramnik, Vladimir — 10 parties
Anand, Viswanathan — 9 parties
Karpov, Anatoly — 9 parties
Tal, Mikhail — 8 parties
Karpov, Aleksandr — 8 parties
Kasparov, Garry — 6 parties
Hou, Yifan — 5 parties
Smyslov, Vladimir — 4 parties
Carlsen, Magnus — 4 parties
Alekhine, Alexander — 1 partie
Euwe, Max — 1 partie
Botvinnik, Mikhail — 1 partie

Parties historiques

4…O-O — 62.3% (2729 parties)

1947 — De Souza Mendes, Joao vs De Freitas, Marcio Elisio — 1/2-1/2 — Porto Alegre
1949 — Chekhover, Vitaly vs Sokolsky, Alexey — 1/2-1/2 — Vilnius LTU
1950 — Steinmeyer, Robert vs Byrne, Robert E — 1/2-1/2 — New York ch USA
1954 — Grob, Henry vs Nievergelt, Erwin — 1-0 — Zurich SUI
1956 — Sherwin, James T vs Day, Fabian — 1-0 — Oklahoma City, OK USA

4…c5 — 21.9% (959 parties)

1927 — Bogoljubow, Efim vs Ahues, Carl — 1/2-1/2 — Berlin GER
1927 — Kmoch, Hans vs Alekhine, Alexander — 1/2-1/2 — Kecskemet I
1952 — German, Eugenio vs Vasconcellos, Fernando O — 1/2-1/2 — Sao Paulo BRA
1954 — Trifunovic, Petar vs Nievergelt, Erwin — 0-1 — Zurich SUI
1956 — Sherwin, James T vs Morrell, Phil W — 1-0 — Oklahoma City, OK USA

4…b6 — 7.4% (325 parties)

1970 — Polugaevsky, Lev vs Ghitescu, Theodor — 1/2-1/2 — Siegen olm
1976 — Butnorius, Algimantas vs Zhemajitis, G — 1-0 — Kaunas
1977 — Cummings, David H. vs Fernandez Williams, Horacio Andres — 1/2-1/2 — Brighton ch-BCF
1977 — De Roode, Peter vs Van der Wiel, John T.H. — 0-1 — Rotterdam NED
1978 — Cornelius, Paul vs De Firmian, Nick — 1/2-1/2 — San Francisco, CA USA

4…d5 — 3.0% (131 parties)

1962 — Pachman, Ludek vs Polugaevsky, Lev — 1-0 — Havana CUB
1973 — Malich, Burkhard, Dr. vs Liebert, Heinz — 1/2-1/2 — Halle/Saale
1973 — Furman, Slavomir vs Makarichev, Sergey — 1/2-1/2 — Tbilisi GEO
1975 — Gheorghiu, Florin vs Lombardy, William J — 1/2-1/2 — Teesside ENG
1978 — Olivera, Horacio vs Link, Hugo E. — 1-0 — Clarin-B Buenos Aires ARG

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	—	● d7→e6, f7→e6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● e4 (2v1), ● b5 (2v0)	—
Cases faibles	—	—
Centre	● d4 (1v0), ● e4 (2v1), ● e5 (1v0)	—

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 0)
Bf1	● Bf1 Non développé (mob. 0)
Bb4		● Bb4 Actif (mob. 7)
Bc8		● Bc8 Non développé (mob. 0)
Paire de fous	● Oui	● Oui
Non développées	4 (c1, f1, a1, h1)	4 (b8, c8, a8, h8)

Sécurité du roi

	♔ Blancs	♚ Noirs
Statut	● Au centre !	● Au centre !
Droits de roque	O-O / O-O-O	O-O / O-O-O

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	semi-ouvert
Ruptures	● c4-c5, ● d2-d3, ● e2-e3	● …c7-c6, ● …c7-c5, ● …d7-d6, ● …d7-d5, ● …e6-e5

Partie
1927 Kecskemet I – Round 2 – Kmoch, Hans – 1/2-1/2 – Alekhine, Alexander – G11 1. Nf3 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. a3 Ba5 6. e3 Nc6 7. d4 d6 8. Be2 O-O 9. O-O Qe7 10. b3 Bxc3
1941 Trencianske Teplice – Round 1 – Füster, Géza – 1-0 – Saemisch, Friedrich – G6 1. Nf3 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d6 5. d4 Qe7 6. g3 Bxc3+ 7. Qxc3 b6 8. Bg2 Bb7 9. O-O Nbd7 10. b3 O-O
1957 GBR Ch 44th – Round 1.14 – Newman Caceres, Reynaldo Adolfo – 1-0 – Milner Barry, Philip – G2 1. Nf3 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. a3 Bxc3 6. Qxc3 d6 7. g3 e5 8. d3 O-O 9. Bg2 Nh5 10. O-O f5
1962 Capablanca Memorial – Round 10 – Pachman, Ludek – 1-0 – Polugaevsky, Lev – G101 1. Nf3 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. a3 Be7 6. cxd5 exd5 7. d4 O-O 8. Bg5 Bg4 9. Ne5 Be6 10. e3 Nbd7
1964 URS Spartakiad – Round ? – Petrosian, Tigran V – 1-0 – Taimanov, Mark E – G7 1. c4 e6 2. Nc3 Bb4 3. Nf3 Nf6 4. Qc2 d6 5. d4 O-O 6. Bg5 Nbd7 7. e3 Qe8 8. Bh4 e5 9. O-O-O c6 10. Nd2 a6
1965 New York ch-USA – Round 8 – Saidy, Anthony – 1-0 – Reshevsky, Samuel – G26 1. c4 Nf6 2. Nc3 e6 3. Nf3 Bb4 4. Qc2 c5 5. a3 Ba5 6. g3 O-O 7. Bg2 d5 8. O-O Qe7 9. cxd5 exd5 10. d4 c4
1966 Asztalos Memorial – Round 12 – Lilienthal, Andor – 1/2-1/2 – Dely, Peter – G10 1. c4 e6 2. Nc3 Nf6 3. Nf3 Bb4 4. Qc2 c5 5. a3 Ba5 6. e3 b6 7. d4 Bb7 8. Bd3 O-O 9. Rb1 Bxc3+ 10. bxc3 d5
1966 La Habana olm fin-B – Round 6 – Clarke, Peter H – 1/2-1/2 – Johansson, Martin 1979 – G83 1. c4 Nf6 2. Nc3 e6 3. Nf3 Bb4 4. Qc2 c5 5. e3 O-O 6. Be2 d5 7. a3 Ba5 8. O-O dxc4 9. Bxc4 Nbd7 10. d4 cxd4
1967 HUN Ch Budapest HUN – Round 2 – Lengyel, Levente – 1/2-1/2 – Barcza, Gedeon – G7 1. Nf3 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. a3 Bxc3 6. Qxc3 O-O 7. g3 b6 8. Bg2 Bb7 9. b4 d6 10. bxc5 bxc5
1967 Monte Carlo – Round 9 – Smyslov, Vladimir – 1-0 – Matanovic, Anto – G35 1. Nf3 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. a3 Ba5 6. e3 d5 7. Na4 b6 8. Rb1 Na6 9. cxd5 Nxd5 10. Bb5+ Kf8
1967 URS-ch35 – Round 1 – Sakharov, Yuri G. – 1-0 – Borisenko, Georgy K – G10 1. c4 e6 2. Nf3 Nf6 3. Nc3 Bb4 4. Qc2 Nc6 5. a3 Bxc3 6. Qxc3 a5 7. b3 O-O 8. Bb2 Re8 9. d3 d5 10. g4 e5
1967 Vrnjacka Banja zt – Round 4 – Pachman, Ludek – 1/2-1/2 – Matanovic, Aleksandar – G30 1. Nf3 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. g3 Nc6 6. a3 Ba5 7. Bg2 O-O 8. O-O Qe7 9. Rd1 e5 10. d3 d6
1967 Winnipeg – Round 3 – Kagan, Shimon – 0-1 – Matanovic, Aleksandar – G20 1. Nf3 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. a3 Ba5 6. Na4 d6 7. g3 Nc6 8. Bg2 O-O 9. O-O Rb8 10. d3 a6
1967 Winnipeg – Round 4 – Larsen, Benjamin Holsko – 0-1 – Darga, Klaus – G21 1. c4 Nf6 2. Nf3 e6 3. Nc3 Bb4 4. Qc2 c5 5. a3 Ba5 6. g3 Nc6 7. Bg2 O-O 8. O-O d6 9. d3 a6 10. Rb1 Bd7
1967 Winnipeg – Round 4 – Larsen, Bent – 0-1 – Darga, Klaus – G22 1. c4 Nf6 2. Nf3 e6 3. Nc3 Bb4 4. Qc2 c5 5. a3 Ba5 6. g3 Nc6 7. Bg2 O-O 8. O-O d6 9. d3 a6 10. Rb1 Bd7
1968 New York ch-USA – Round 5 – Evans Lianda – 1-0 – Rossolimo, Nicolas – G25 1. c4 Nf6 2. Nc3 e6 3. Nf3 Bb4 4. Qc2 c5 5. a3 Ba5 6. g3 Nc6 7. Bg2 O-O 8. O-O d6 9. e3 Bd7 10. d4 Bxc3
1969 IBM I – Round 8 – Darga, Klaus – 1/2-1/2 – Langeweg, Kick – G28 1. c4 Nf6 2. Nc3 e6 3. Nf3 Bb4 4. Qc2 c5 5. a3 Ba5 6. e3 O-O 7. Be2 Nc6 8. O-O d6 9. d4 Bxc3 10. Qxc3 Qe7
1969 Liberation – Round 12 – Polugaevsky, Lev – 1-0 – Matanovic, Aleksandar – G54 1. c4 Nf6 2. Nc3 e6 3. Nf3 Bb4 4. Qc2 c5 5. a3 Ba5 6. g3 Nc6 7. Bg2 O-O 8. O-O d6 9. Rb1 e5 10. e3 h6
1970 Palma de Mallorca Interzonal – Round 14 – Polugaevsky, Lev – 1/2-1/2 – Huebner, Robert – G266 1. Nf3 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. a3 Ba5 6. g3 Nc6 7. Bg2 O-O 8. O-O Qe7 9. d3 a6 10. Rb1 Rb8
1971 Hoogovens – Round 14 – Lengyel, Laszlo – 1/2-1/2 – Langeweg, Kick – G34 1. c4 Nf6 2. Nc3 e6 3. Nf3 Bb4 4. Qc2 c5 5. a3 Ba5 6. g3 Nc6 7. Bg2 O-O 8. O-O d6 9. Rb1 Bxc3 10. bxc3 Qc7
1971 Moscow – Round 16 – Lengyel, Levente – 1/2-1/2 – Balashov, Yuri S – G37 1. c4 Nf6 2. Nc3 e6 3. Nf3 Bb4 4. Qc2 c5 5. a3 Bxc3 6. Qxc3 b6 7. g3 Bb7 8. Bg2 O-O 9. O-O d6 10. b4 Qe7
1972 Skopje ol (Men) fin-A – Round 10 – Korchnoi, Viktor – 1-0 – Jakobsen, Odinn Orn – G97 1. c4 Nf6 2. Nc3 e6 3. Nf3 Bb4 4. Qc2 c5 5. Na4 d6 6. g3 Nc6 7. Bg2 a6 8. O-O b5 9. a3 Ba5 10. b4 Bxb4
1973 Leningrad Interzonal – Round 8 – Uhlmann, Wolfgang – 1/2-1/2 – Huebner, Robert – G30 1. c4 Nf6 2. Nc3 e6 3. Nf3 Bb4 4. Qc2 c5 5. g3 Nc6 6. Bg2 O-O 7. O-O Qe7 8. d3 Ba5 9. Nh4 Rd8 10. e4 d6
4. World Blitz 2008 – Round 13 – Svidler, Peter – 1/2-1/2 – Ivanchuk, Vasyl – G87 1. c4 Nf6 2. Nf3 e6 3. Nc3 Bb4 4. Qc2 c5 5. a3 Ba5 6. g3 Nc6 7. Bg2 O-O 8. O-O d6 9. d3 Rb8 10. Rb1 a6
41. Olympiad Open 2014 – Round 3.19 – Lupulescu, Constantin – 1/2-1/2 – Markos, Jan – G201 1. Nf3 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. a3 Ba5 6. e3 O-O 7. d4 b6 8. Be2 d5 9. dxc5 bxc5 10. O-O Nbd7
41. Olympiad Open 2014 – Round 4.30 – Iturrizaga Bonelli, Eduardo – 0-1 – Kovalyov, Anton – G286 1. Nf3 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. a3 Ba5 6. e3 O-O 7. Be2 Nc6 8. O-O e5 9. Nd5 d6 10. Ng5 g6
41. Olympiad Open 2014 – Round 8.14 – Beliavsky, Alexander G – 1/2-1/2 – Mareco, Sandro – G553 1. Nf3 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. a3 Ba5 6. e3 O-O 7. d4 d6 8. Be2 h6 9. O-O Nc6 10. Bd2 a6
Amber-rapid 6th 1997 – Round 11 – Karpov, Anatoly – 1/2-1/2 – Nikolic, Predrag – G62 1. Nf3 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 b6 5. a3 Bxc3 6. Qxc3 Bb7 7. b4 a5 8. Bb2 axb4 9. axb4 Rxa1+ 10. Bxa1 O-O
Biel Interzonal 1976 – Round 8 – Huebner, Robert – 0-1 – Tal, Mikhail – G37 1. c4 Nf6 2. Nc3 e6 3. Nf3 Bb4 4. Qc2 c5 5. g3 Nc6 6. Bg2 O-O 7. O-O Qe7 8. d3 h6 9. e4 d6 10. Nh4 Rb8
Corus 2002 – Round 10 – Van Wely, Loek – 1/2-1/2 – Adams, Michael – G69 1. Nf3 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. g3 Nc6 6. a3 Ba5 7. Bg2 O-O 8. O-O d6 9. e3 e5 10. d3 Bd7
Corus A 2009 – Round 7 – Van Wely, Loek – 1/2-1/2 – Carlsen, Magnus – G46 1. Nf3 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. a3 Ba5 6. g3 O-O 7. Bg2 Nc6 8. O-O d6 9. d3 h6 10. Rb1 Rb8
Dortmund 1996 – Round 7 – Kramnik, Vladimir – 1-0 – Lobron, Eric – G26 1. Nf3 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. a3 Bxc3 6. Qxc3 b6 7. b4 Na6 8. e3 Qe7 9. b5 Nc7 10. Be2 Bb7
Erevan ch-URS 1975 – Round 1 – Tal, Mikhail – 1/2-1/2 – Polugaevsky, Lev – G11 1. c4 Nf6 2. Nc3 e6 3. Nf3 Bb4 4. Qc2 c5 5. a3 Ba5 6. g3 Nc6 7. Bg2 O-O 8. O-O Qe7 9. d3 d6 10. Rb1 h6
FIDE World Rapid Championship 2014 – Round 11.16 – Iturrizaga Bonelli, Eduardo – 0-1 – Moiseenko, Alexander – G8 1. Nf3 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d6 5. a3 Bxc3 6. Qxc3 e5 7. b4 O-O 8. Bb2 a5 9. g3 axb4 10. axb4 Rxa1+
Hoogovens 1978 – Round 1 – Korchnoi, Viktor – 1-0 – Panno, Oscar – G5 1. c4 Nf6 2. Nc3 e6 3. Nf3 Bb4 4. Qc2 c5 5. a3 Ba5 6. e3 O-O 7. d4 b6 8. Bd3 Bb7 9. O-O Bxc3 10. Qxc3 Be4
Moscow 1975 – Round 1 – Forintos, Gyozo V – 1/2-1/2 – Spassky, Boris V. – G9 1. c4 Nf6 2. Nc3 e6 3. Nf3 Bb4 4. Qc2 c5 5. a3 Bxc3 6. Qxc3 Nc6 7. b4 b6 8. e3 O-O 9. Be2 d6 10. d4 a5
Olympiad 2002 – Round 7 – Eingorn, Vereslav S – 1/2-1/2 – Mchedlishvili, Mikheil – G250 1. Nf3 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. a3 Bxc3 6. Qxc3 O-O 7. e3 b6 8. b4 d6 9. Bb2 e5 10. Be2 Bb7
Skopje ol (Men) fin-A 1972 – Round 10 – Korchnoi, Viktor – 1-0 – Jakobsen, Odinn Orn – G31 1. c4 Nf6 2. Nc3 e6 3. Nf3 Bb4 4. Qc2 c5 5. Na4 d6 6. g3 Nc6 7. Bg2 a6 8. O-O b5 9. a3 Ba5 10. b4 Bxb4
Thessaloniki olm 1988 – Round 5 – Milos, Gilberto – 1-0 – Seirawan, Yasser – G47 1. Nf3 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 b6 5. g3 Bb7 6. Bg2 O-O 7. O-O d5 8. cxd5 exd5 9. d4 Re8 10. Bf4 c6
Turin ol (Men) 37th 2006 – Round 4 – Pantsulaia, Levan – 1/2-1/2 – Gustafsson, Jan – G60 1. Nf3 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. a3 Ba5 6. g3 O-O 7. Bg2 Nc6 8. O-O d6 9. e3 e5 10. d4 Bxc3
Turin ol (Men) 37th 2006 – Round 6 – Eljanov, Pavel – 1-0 – Sharbaf, Mohsen – G85 1. Nf3 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 b6 5. a3 Be7 6. d4 Bb7 7. e4 d5 8. cxd5 exd5 9. e5 Ne4 10. Bd3 Nxc3
World Blitz 2009 – Round 29 – Grischuk, Alexander – 1/2-1/2 – Naiditsch, Arkadij – G303 1. Nf3 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. a3 Ba5 6. g3 O-O 7. Bg2 Nc6 8. O-O d6 9. d3 h6 10. e3 e5
World Blitz 2015 – Round 13.38 – Iturrizaga Bonelli, Eduardo – 1-0 – Riff, Jean-Noel – G811 1. Nf3 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. g4 O-O 6. g5 Ne8 7. Bg2 d5 8. h4 Nc6 9. cxd5 exd5 10. a3 Bxc3
World Blitz 2016 – Round 18.12 – Melkumyan, Hrant – 1-0 – Mchedlishvili, Mikheil – G703 1. Nf3 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. g3 O-O 6. Bg2 Nc6 7. O-O h6 8. d3 d6 9. a3 Ba5 10. e3 e5

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