C77 — Ruy Lopez: Morphy Defense, Anderssen Variation

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 d6 ○ Trait aux Blancs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Avantages : case forte g5, paire de fous.
Faiblesses adverses : Bc8 enfermé, Bf8 enfermé, roi noir au centre.
Problèmes : roi au centre, Bc1 enfermé, 4 pièces non développées (B1, C1, A1, H1).
Plans :
● O-O — Mettre le roi en sécurité, connecter les tours [Masters 6%]
● c3 — Préparer d4 [Masters 76%]
● c4 — Frapper le centre adverse, [Masters 14%]

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Avantages : case forte d4, case forte g4, case forte e5, avant-poste d4(C), paire de fous.
Faiblesses adverses : Bc1 enfermé, Ba4 mauvais fou, roi blanc au centre.
Problèmes : roi au centre, Bc8 enfermé, Bf8 enfermé, 4 pièces non développées (C8, F8, A8, H8).
Plans :
● O-O — Mettre le roi en sécurité, connecter les tours
● ...Bg4 — Développer Bc8, clouer Nf3
● ...Be7 — Développer Bf8
● ...d5 — Rupture

Avantages

Faiblesses adverses

Diagonale active

Plans

Base Masters : Blancs 32.1%, Nulles 40.5%, Noirs 27.4%.

C77d — Anderssen

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.d3 d6

Eval: [+0.26]

Les coups candidats

6.c3 — 70.4% (5480 parties) →

Ambassadeurs : Efimenko, Zahar (20x), Mikhalevski, Victor (19x), Smyslov, Vladimir (18x), Krol, Wladyslaw (15x), Vujosevic, Vladimir (14x), Arakhamia-Grant, Ketevan (14x), Romanishin, Oleg M (13x), Akopian, Vladimir (13x)

6.c4 — 9.3% (723 parties) →

Ambassadeurs : Důras, Oldřich (19x), Kuusela, Matti (14x), Fercec, Nenad (9x), Varga, Zo (9x), Nikitenko, Mihail (7x), Green, Andrew D (6x), Kuzmin, Gennadiy (5x), Mrva, Martin (5x)

6.O-O — 8.4% (655 parties)

Ambassadeurs : Movsesian, Sergei (5x), Pfeiffer, Gerhard (4x), Fataliyeva, Ulviyya (4x), Ilyin Zhenevsky, Alexander (3x), Puzanov, Vasyl (3x), Milligan, Helen (3x), Peng, Shunkai (3x), Mazur, Stefan (3x)

6.h3 — 5.2% (402 parties)

Ambassadeurs : Williams, Rufus H. (6x), Důras, Oldřich (5x), Ciornas, Vasilijus (3x), Pleasants O (2x), Barroso Villarin, F. (2x), Corredor Pravia, Marcelino Vicente (2x), Frei, Eugen (2x), Johann, Stefan (2x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	6.c3	6.c4	6.O-O	6.h3
<1800	236	61%	2%	17%	9%
1800-2200	2337	69%	6%	11%	9%
2200-2600	3533	76%	13%	6%	1%
2600+	259	79%	14%	6%	—

Évolution par décennie (% des parties)

Décennie	N parties	6.c3	6.c4	6.O-O	6.h3
1860s	12	—	—	—	—
1870s	47	15%	—	2%	2%
1880s	45	38%	—	4%	4%
1890s	31	55%	—	10%	3%
1900s	73	44%	18%	8%	10%
1910s	76	54%	24%	8%	3%
1920s	73	74%	7%	10%	3%
1930s	36	67%	8%	3%	8%
1940s	54	85%	9%	4%	—
1950s	103	77%	12%	9%	1%
1960s	92	90%	3%	3%	—
1970s	114	75%	6%	8%	3%
1980s	202	81%	11%	3%	2%
1990s	629	69%	7%	7%	7%
2000s	1524	71%	6%	9%	7%
2010s	3430	70%	9%	10%	6%
2020s	1239	73%	14%	7%	3%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
6.c3	70%	73%	▲ +2.8%
6.c4	9%	14%	▲ +4.6%
6.O-O	10%	7%	▼ -3.0%
6.h3	6%	3%	▼ -3.2%

Joueurs célèbres

Champions du monde dans cette position

Smyslov, Vladimir — 10 parties
Steinitz, Wilhelm — 7 parties
Alekhine, Alexander — 7 parties
Anand, Viswanathan — 7 parties
Carlsen, Magnus — 5 parties
Euwe, Max — 4 parties
Lasker, Emanuel — 3 parties
Hou, Yifan — 3 parties
Tal, Mikhail — 2 parties
Botvinnik, Mikhail — 1 partie
Karpov, Aleksandr — 1 partie
Ju, Wenjun — 1 partie
Ding, Liren — 1 partie

Parties historiques

6.c3 — 70.4% (5480 parties)

1876 — Burn, Amos vs Wayte, William — 1-0 — Cheltenham
1876 — Steinitz, Wilhelm vs Blackburne, Joseph — 1-0 — London ENG
1876 — Potter, William N vs Wisker, John — 1-0 — London ENG
1877 — DelmarMacKenzieTeed vs BrenzingerDe VauxMason — 1/2-1/2 — New York, NY USA
1878 — Riemann, Fritz vs Anderssen, Adolf — 0-1 — Breslau GER

6.c4 — 9.3% (723 parties)

1907 — Důras, Oldřich vs Vidmar, Milan Sr — 0-1 — Carlsbad CZE
1907 — Důras, Oldřich vs Teichmann, Richard — 1-0 — Carlsbad CZE
1907 — Důras, Oldřich vs Janowski, Dawid — 1-0 — Carlsbad CZE
1908 — Duras, Violetta vs Leonhardt, Fabrice — 1-0 — Prague CZE
1908 — Duras, Violetta vs Teichmann, Alexander — 0-1 — Prague CZE

6.O-O — 8.4% (655 parties)

1879 — Gunston, William H vs Gattie, Walter Montague — 1-0 — St Georges CC
1887 — Hall, George B vs Witton, John G — 1-0 — Adelaide AUS
1887 — Eiffe, Patrick vs Esling, Frederick — 0-1 — Adelaide AUS
1892 — Blackburne, Joseph vs Winawer, Szymon — 1/2-1/2 — Dresden GER
1895 — Peake, A S vs Robinson, E A — 0-1 — Dublin IRL

6.h3 — 5.2% (402 parties)

1873 — Van Hogendorp, F. vs Gifford, Birkmyre H — 1/2-1/2 — The Hague NED
1887 — Noa, Joseph vs Gunsberg, I. — 0-1 — Frankfurt GER
1888 — Lee, Francis J vs Gunsberg, Isidor — 0-1 — Bradford/ Yorkshire
1894 — Davison, A. Thomas vs Narraway, James — 1/2-1/2 — Montreal CAN
1904 — Brown Mark Felix vs Shoosmith, Hector W — 0-1 — London ENG

Coups candidats

auto

Analyse coup par coup — 10 demi-coups commentés

1.e4 Avancée centrale — contrôle d5, f5. Prépare d4, f4, Bc4, Bd3.
1…e5 Avancée centrale — contrôle d4, f4. Prépare d5, f5, Bc5.
2.Nf3 Contrôle c4, d4, d5, e5.
2…Nc6 Contrôle d4, f4, c5.
3.Bb5 Contrôle c4, d4, d5, e5.
3…a6 Coup prophylactique — empêche Nb5, Bb5. Prépare b5.
4.Ba4 Contrôle d4, d5, e5, f5.
4…Nf6 Contrôle d4, e4, f4, c5.
5.d3 Avancée centrale — contrôle c4, e4. Prépare e4, Nd2, Be2.
5…d6 Avancée centrale — contrôle c5, e5. Prépare e5, Nd7.

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● c2→d3, d3→e4	● d6→e5, b7→a6, c7→d6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● g5 (2v0)	● d4 (2v1), ● g4 (2v0), ● e5 (2v1)
Cases faibles	—	—
Centre	—	● d4 (2v1), ● e5 (2v1)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Ba4	● Ba4 Mauvais (mob. 3)
Bc8		● Bc8 Non développé (mob. 5)
Bf8		● Bf8 Non développé (mob. 1)
Paire de fous	● Oui	● Oui
Clouages	—	● knight c6
Non développées	4 (b1, c1, a1, h1)	4 (c8, f8, 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	fermé
Ruptures	● c2-c3, ● d3-d4	● …d6-d5

Partie
1900 London – Round 2 – Mason, James – 1-0 – Lawrence, Thomas F – G8 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 d6 6. Bxc6+ bxc6 7. h3 g6 8. O-O Bg7 9. Be3 Rb8 10. b3 h6
1902 DSB-13.Kongress Hauptturnier A – Round 2 – Exner Victor – 0-1 – Brody, Miklos – G3 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 d6 6. Nc3 g6 7. O-O Bg7 8. Ne2 O-O 9. c3 Qe7 10. Bg5 h6
1903 It (Men) Monte Carlo MNC – Round 11 – Moreau, Chloe – 0-1 – D Marco, Gianni – G51 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 d6 6. Bg5 Be7 7. Bxf6 Bxf6 8. Bxc6+ bxc6 9. h3 Rb8 10. b3 d5
1905 Hauptturnier A – Round 9 – Důras, Oldřich – 0-1 – Rubinstein, Akiba – G30 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 d6 6. Nc3 Bd7 7. O-O Be7 8. Bb3 Na5 9. d4 exd4 10. Qxd4 Nxb3
1905 It (Men) Barmen GER – Round 1 – Przepiorka, Dawid – 0-1 – Neumann Feliu, Rodrigo – G56 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 d6 6. Nc3 Bd7 7. O-O h6 8. d4 Qe7 9. Nd5 Nxd5 10. exd5 Nxd4
1905 Scheveningen – Round 1 – Důras, Oldřich – 1-0 – Schories, Georg – G10 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 d6 6. Nc3 Be7 7. Be3 O-O 8. h3 b5 9. Bb3 Na5 10. Nd2 Bb7
1907 It (Men) San Sebastian ESP – Round 11 – Mason, James – 0-1 – Nimzowitsch, Aron – G28 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 d6 6. Nc3 Be7 7. h3 b5 8. Bb3 O-O 9. O-O Na5 10. Nh2 b4
1907 Ostende II – Round 11 – Důras, Oldřich – 0-1 – Forgacs, Leo – G136 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 d6 6. h3 b5 7. Bb3 Na5 8. Nbd2 g6 9. c3 Nxb3 10. axb3 Bb7
1907 Ostende II – Round 4 – Von Scheve, Theodor – 1/2-1/2 – Rubinstein, Akiba – G49 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 d6 6. O-O b5 7. Bb3 Na5 8. Be3 Be7 9. Nbd2 Nxb3 10. axb3 Bb7
1907 Ostende II – Round 5 – Důras, Oldřich – 1-0 – Von Scheve, Theodor – G65 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 d6 6. h3 Be7 7. c4 O-O 8. Nc3 Nd4 9. Nxd4 exd4 10. Ne2 c5
1907 Ostende II – Round 9 – Von Scheve, Theodor – 1-0 – D Marco, Gianni – G111 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 d6 6. O-O Be7 7. h3 h6 8. c4 Bd7 9. Be3 g5 10. Nh2 Rg8
1908 DSB-16.Kongress – Round 8 – Von Bardeleben, Curt – 1-0 – Jakob, Adorjan – G45 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 d6 6. Nc3 Be7 7. h3 O-O 8. O-O b5 9. Bb3 Na5 10. Nh2 Nxb3
1908 Prague – Round 12 – Důras, Oldřich – 1-0 – Treybal, Frantisek – G101 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 d6 6. h3 Be7 7. c4 O-O 8. Be3 Bd7 9. Nc3 Kh8 10. O-O Ng8
1908 Prague – Round 9 – Důras, Oldřich – 1-0 – Marshall, Frank – G80 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 d6 6. h3 Be7 7. c4 Bd7 8. Be3 O-O 9. Nc3 Qc8 10. O-O Ne8
1909 St Petersburg – Round 1 – Důras, Oldřich – 1-0 – Burn, Amos – G59 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 d6 6. h3 Be7 7. c4 O-O 8. Be3 Nd7 9. Nc3 f5 10. exf5 Rxf5
1910 Hamburg Hauptturnier-B – Round ? – Suechting, Hugo – 0-1 – Barasz, Zsigmond – G14 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 d6 6. Nc3 Be7 7. Bg5 O-O 8. h3 Bd7 9. Ne2 Ne8 10. Be3 f5
1910 Hamburg Hauptturnier-B – Round ? – Suechting, Hugo – 0-1 – Dyckhoff, Eduard – G13 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 d6 6. Nc3 Be7 7. Nd5 O-O 8. Bxc6 bxc6 9. Nxe7+ Qxe7 10. Bg5 Bg4
1910 Hamburg Hauptturnier-B – Round 1 – Kerwel – 0-1 – Schlage, Willi – G5 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 d6 6. Be3 Be7 7. c4 O-O 8. Nc3 Ne8 9. O-O f5 10. exf5 Bxf5
1912 San Sebastian – Round 1 – Důras, Oldřich – 1/2-1/2 – Forgacs, Leo – G3 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 d6 6. O-O Be7 7. c3 O-O 8. Re1 Kh8 9. Nbd2 Bd7 10. Nf1 Ng8
1912 San Sebastian – Round 4 – Důras, Oldřich – 1/2-1/2 – Teichmann, Richard – G9 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 d6 6. O-O b5 7. Bb3 Na5 8. Qe1 Nxb3 9. axb3 c5 10. Bg5 Be7
1914 Triberg – Round ? – Bogoljubow, Efim – 1-0 – Weinstein, Shaul – G7 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 d6 6. Nc3 Be7 7. Ne2 O-O 8. Ng3 Be6 9. Qe2 Nd7 10. c3 b5
1915 New York USA – Round 14 – Hodges, Albert – 0-1 – Chajes, Oscar – G19 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 d6 6. Bxc6+ bxc6 7. Nc3 Be7 8. d4 exd4 9. Nxd4 Bd7 10. O-O O-O
1921 DSB-21.Kongress – Round 8 – Gregory, Bernhard – 0-1 – Post, Erhard – G38 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 d6 6. Nc3 Be7 7. h3 O-O 8. Be3 b5 9. Bb3 Na5 10. Qe2 Bb7
1923 Maehrisch Ostrau – Round 8 – Selezniev, Alexey – 1/2-1/2 – Reti, Richard – G50 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 d6 6. h3 Be7 7. Nc3 b5 8. Bb3 Na5 9. Bg5 c6 10. Ne2 h6
1924 Moskou ch-URS – Round 4 – Ilyin Zhenevsky, Alexander – 1/2-1/2 – Sozin, Veniamin – G16 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 d6 6. O-O g6 7. d4 Bd7 8. Nc3 Bg7 9. dxe5 Nxe5 10. Nxe5 dxe5
1926 Semmering – Round 1 – Yates, Frederic D – 1/2-1/2 – Tarrasch, Siegbert – G83 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 d6 6. Nbd2 b5 7. Bb3 Na5 8. Nf1 Be7 9. Bd2 Nxb3 10. axb3 O-O
1930 Hamburg olm – Round 1 – Macht, Alexander – 0-1 – Alekhine, Alexander – G41 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 d6 6. Nc3 Be7 7. h3 Bd7 8. O-O h6 9. Be3 Qc8 10. Nd5 Nxd5
1930 Scarborough – Round 2 – Sultan Khan, Mir – 0-1 – Rubinstein, Akiba – G17 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 d6 6. h3 b5 7. Bb3 Na5 8. Nc3 Be7 9. Be3 O-O 10. Qe2 Re8
1939 SCO-ch52/ – Round 9 – McNaughton W – 0-1 – Aitken, James – G17 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 d6 6. h3 Be7 7. Be3 b5 8. Bb3 Na5 9. c3 Nxb3 10. axb3 Bb7
1950 FRG Ch – Round 14 – Pfeiffer, Gerhard – 1/2-1/2 – Schmidt, Paul – G35 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 d6 6. O-O Be7 7. c3 O-O 8. Re1 Bd7 9. Nbd2 Ne8 10. Nf1 f5
1953 Zagreb – Round 6 – Fuderer, Andrija – 1/2-1/2 – Trifunovic, Petar – G61 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 d6 6. O-O Be7 7. c3 O-O 8. Nbd2 Nd7 9. Re1 Nb6 10. Bb3 a5
1956 Moscow olm fin-A – Round 3 – Pfeiffer, Gerhard – 0-1 – Geller, Efim P – G48 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 d6 6. O-O b5 7. Bb3 Na5 8. Re1 Be7 9. Bd2 Nxb3 10. axb3 O-O
1956 Moscow olm prel – Round 2 – Pfeiffer, Gerhard – 1-0 – Fred, Aatos – G64 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 d6 6. O-O Be7 7. c4 O-O 8. h3 Bd7 9. Nc3 Rb8 10. Be3 Kh8
1956 Moscow olm prel – Round 8 – Pfeiffer, Gerhard – 1-0 – Dunphy, William – G258 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 d6 6. O-O Be7 7. c4 O-O 8. h3 Rb8 9. Nc3 Bd7 10. Be3 Qc8
1957 CSR Ch – Round 9 – Jezek, Jaroslav – 1-0 – Eret, Miloslav – G36 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 d6 6. O-O Bg4 7. c3 Nd7 8. Re1 Qf6 9. Nbd2 Nc5 10. Bxc6+ bxc6
1958 Munich olm prel – Round 9 – Rossolimo, Nicolas – 1-0 – Kristjansson, Bragi – G218 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 d6 6. O-O Be7 7. c4 O-O 8. Nc3 Bg4 9. Bxc6 bxc6 10. h3 Bd7
1960 Mar del Plata – Round 4 – Redolfi, Argentino Rodolfo – 1-0 – Incutto, Carlos – G46 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 d6 6. O-O b5 7. Bb3 Na5 8. Nc3 Be7 9. Qe2 Nxb3 10. axb3 Bb7
1963 Moscow RUS – Round ? – Soloviev, Vladimir A – 0-1 – Nikitin, Aleksander S – G41 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 d6 6. O-O Bg4 7. Be3 b5 8. Bb3 Na5 9. Nbd2 Nxb3 10. axb3 c5
GCT Blitz Paris 2016 – Round 3.2 – Vachier-Lagrave, Maxime – 1/2-1/2 – Carlsen, Magnus – G12 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 d6 6. O-O b5 7. Bb3 Na5 8. Re1 Nxb3 9. axb3 c5 10. Bg5 Be7
World Blitz 2015 – Round 11.39 – Swiercz, Dariusz – 1-0 – Ragger, Markus – G687 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 d6 6. O-O Be7 7. c3 O-O 8. Re1 b5 9. Bc2 d5 10. Nbd2 d4
World Blitz 2017 – Round 3.44 – Haddouche, Mohamed – 0-1 – Sargissian, Gabriel – G159 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 d6 6. O-O g6 7. c3 Bg7 8. Re1 O-O 9. Nbd2 Bd7 10. Nf1 Re8
World Rapid 2021 – Round 11.30 – Movsesian, Sergei – 0-1 – Nihal Sarin – G644 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 d6 6. O-O g6 7. c4 Bg7 8. Nc3 O-O 9. Bxc6 bxc6 10. d4 exd4

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