C48f — Four Knights: Spanish, Classical Defence, 5.O-O

1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bb5 Bc5 5.O-O * ● Trait aux Noirs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Avantages : case forte d5, Bb5 actif, paire de fous.
Faiblesses adverses : Bc8 enfermé, roi noir au centre.
Problèmes : Bc1 enfermé.
Plans :
● d3 — Libérer Bc1
● h3 — Empêcher ...Bg4
● c3 — Préparer d4

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Avantages : case forte b4, case forte d4, Bc5 actif, paire de fous.
Faiblesses adverses : Bc1 enfermé.
Problèmes : roi au centre, Bc8 enfermé, 3 pièces non développées (C8, A8, H8).
Plans :
● O-O — Mettre le roi en sécurité, connecter les tours
● ...d6 — Libérer Bc8
● ...Bg4 — Clouer Nf3
● ...d5 — Rupture

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

C48f — Spanish Classical Defence

1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bb5 Bc5 5.O-O

Eval: [+0.39]

Les coups candidats

5…O-O — 54.3% (1478 parties)

Ambassadeurs : Korneev, Oleg (8x), Jovanovic, Bratislav M (6x), Curdo, John (5x), Winants, Luc (4x), Short, Nigel D (4x), Schrepfer, Jeff (4x), Cuccumini, Vittorio (4x), Misericordia, Antonio (4x)

5…d6 — 35.8% (974 parties)

Ambassadeurs : Zukertort, Johannes (4x), Kriz, Daniel (3x), Tunur, Mustafa Namik (3x), Fuchs, Georg (3x), Hammacher, Eduard (2x), Paulsen, Louis (2x), Gunsberg, Isidor (2x), Lasker, Emanuel (2x)

5…Nd4 — 2.8% (76 parties)

Ambassadeurs : Papp, Sarah (2x), Maslesa, Branko (2x), Misanovic, Vesna (2x), Salvati, Diego Javier (2x), McMahon, Daire (2x), Limbos, Paul (1x), Beyen, Roland (1x), Nielsen, E Verner (1x)

5…Qe7 — 2.5% (68 parties)

Ambassadeurs : Casa, Alex (2x), Csolto, Robert (2x), MacKenzie, George H (1x), Mason, James (1x), Gurgenidze, Aleksandra (1x), Dan Nikolic, Slobodan (1x), Giustolisi, Alberto (1x), Mardle, Denis (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	5…O-O	5…d6	5…Nd4	5…Qe7
<1800	135	46%	44%	3%	1%
1800-2200	795	45%	47%	2%	3%
2200-2600	546	69%	25%	4%	2%
2600+	19	95%	5%	—	—

Évolution par décennie (% des parties)

Décennie	N parties	5…O-O	5…d6	5…Nd4	5…Qe7
1850s	5	80%	20%	—	—
1860s	2	—	100%	—	—
1870s	17	53%	47%	—	—
1880s	12	42%	50%	—	8%
1890s	8	75%	25%	—	—
1900s	15	73%	27%	—	—
1910s	15	47%	53%	—	—
1920s	3	67%	33%	—	—
1930s	2	50%	50%	—	—
1940s	6	50%	50%	—	—
1950s	11	27%	55%	9%	9%
1960s	18	33%	33%	17%	17%
1970s	22	32%	59%	5%	5%
1980s	44	48%	36%	7%	7%
1990s	509	51%	39%	2%	4%
2000s	935	50%	36%	4%	3%
2010s	862	61%	33%	2%	2%
2020s	234	60%	33%	3%	1%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
5…O-O	61%	60%	▼ -0.6%
5…d6	33%	33%	-0.0%
5…Nd4	2%	3%	▲ +0.6%
5…Qe7	2%	1%	▼ -0.7%

Joueurs célèbres

Champions du monde dans cette position

Lasker, Emanuel — 2 parties
Steinitz, Wilhelm — 1 partie
Alekhine, Alexander — 1 partie
Euwe, Max — 1 partie
Hou, Yifan — 1 partie
Ju, Wenjun — 1 partie

Parties historiques

5…O-O — 54.3% (1478 parties)

1857 — Paulsen, Louis vs Morphy, Paul — 0-1 — New York, NY USA
1857 — Paulsen, Laurids vs Morphy, Paul — 0-1 — The Golden Treasury of Chess
1857 — Paulsen, Aleksander Karlsen vs Morphy — 0-1 — New York, NY USA
1857 — Paulsen, Louis vs Morphy, Paul — 0-1 — New York, NY USA
1870 — Paulsen, Louis vs Winawer, Szymon — 1/2-1/2 — Baden-Baden GER

5…d6 — 35.8% (974 parties)

1857 — Lichtenhein, Theodore vs Perrin, Fleur — 1-0 — New York, NY USA
1867 — Andre Cotarelo, David vs Steinitz, David — 0-1 — Parijs
1867 — D'Andre Baron vs Steinitz, Wilhelm — 0-1 — Paris FRA
1875 — Cassoli vs D'Aumiller A — 0-1 — Rome ITA
1877 — Zukertort, Johannes vs Allies, Chez-Ray — 1-0 — Cologne GER

5…Nd4 — 2.8% (76 parties)

1953 — Nielsen, E Verner vs Larsen, Bent Ravn — 0-1 — Horsens
1960 — Poliak, Evsey vs Sakhanovich — 1/2-1/2 — Kiev UKR
1960 — Karastoichev, Emil vs Milev, Zdravko — 1/2-1/2 — Varna BUL
1967 — Limbos, Paul vs Beyen, Roland — 1/2-1/2 — Ostend
1973 — Silverman, I. vs Chisanga Clayton — 1-0 — Adelphia,NJ

5…Qe7 — 2.5% (68 parties)

1882 — MacKenzie, George H vs Mason, James — 1/2-1/2 — London ENG
1953 — Mardle, Denis vs Alexander Ronald Cheng — 0-1 — Hastings ch-BCF
1966 — Tarazi, Andre vs Casa, Alex — 0-1 — Havana CUB
1968 — Gurgenidze, Aleksandra vs Dan Nikolic, Slobodan — 1-0 — USSR-Yugoslavia
1968 — Giustolisi, Alberto vs Casa, Alex — 1/2-1/2 — Lugano SUI

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	—	—
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● d5 (2v1)	● b4 (2v0), ● d4 (3v1)
Cases faibles	—	—
Centre	● d5 (2v1)	● d4 (3v1)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 0)
Bb5	● Bb5 Actif (mob. 6)
Bc5		● Bc5 Actif (mob. 9)
Bc8		● Bc8 Non développé (mob. 0)
Paire de fous	● Oui	● Oui
Clouages	● pawn f2	—
Non développées	2 (c1, a1)	3 (c8, a8, h8)

Sécurité du roi

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

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	fermé
Ruptures	● d2-d3	● …d7-d6, ● …d7-d5

Partie
1903 It (Men) Monte Carlo MNC – Round 17 – Spielmann, Rudolf – 1/2-1/2 – Rubinstein, Akiba – G80 1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. O-O Nf6 5. Nc3 O-O 6. Nxe5 Bd4 7. Nf3 Bxc3 8. dxc3 Nxe4 9. Bd3 d5 10. Re1 Bg4
1905 It (Men) Barmen GER – Round 11 – Kostic, Boris – 1-0 – Von Bardeleben, Curt – G122 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bc5 5. O-O d6 6. d4 exd4 7. Nxd4 Bd7 8. Nf5 Bxf5 9. exf5 Nd7 10. Re1+ Nde5
1906 Gyor – Round 11 – Von Balla, Zoltan – 1-0 – Mueller, Nandor – G15 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bc5 5. O-O O-O 6. d3 d6 7. Ne2 Bg4 8. c3 Ne7 9. Ng3 Ng6 10. h3 Be6
1908 BCF Ch 5th – Round 4 – Gunsberg, Isidor – 1-0 – Lean, Richard Edward – G16 1. e4 e5 2. Nf3 Nf6 3. Nc3 Nc6 4. Bb5 Bc5 5. O-O d6 6. d3 Bg4 7. Bxc6+ bxc6 8. Be3 Bb6 9. h3 Bh5 10. Re1 h6
1912 San Sebastian – Round 11 – Nimzowitsch, Aron – 1/2-1/2 – Rubinstein, Akiba – G28 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bc5 5. O-O O-O 6. Bxc6 dxc6 7. d3 Bg4 8. h3 Bh5 9. Bg5 h6 10. Bxf6 Qxf6
1912 San Sebastian – Round 18 – Teichmann, Richard – 1/2-1/2 – Rubinstein, Akiba – G42 1. e4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. Bb5 Bc5 5. O-O O-O 6. Nxe5 Re8 7. Nf3 Nd4 8. e5 Nxf3+ 9. gxf3 c6 10. exf6 cxb5
1914 St Petersburg – Round 4 – Znosko-Borovsky, Eugene – 1-0 – Jevtifejev, PA. – G22 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bc5 5. O-O d6 6. d4 exd4 7. Nxd4 Bd7 8. Nf5 O-O 9. Bg5 h6 10. Bh4 Bxf5
1948 New York – Round 1 – Najdorf, Miguel – 1-0 – Pilnik, Herman – G12 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bc5 5. O-O O-O 6. Nxe5 Nxe5 7. d4 Bb4 8. dxe5 Bxc3 9. bxc3 Nxe4 10. Qd4 Ng5
1953 Hastings ch-BCF – Round 6 – Mardle, Denis – 0-1 – Alexander Ronald Cheng – G55 1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. O-O Nf6 5. Nc3 Qe7 6. Nd5 Nxd5 7. exd5 Nd4 8. Nxd4 Bxd4 9. c3 Bb6 10. d4 O-O
1957 USSR ch-04 5760 – Round ? – Altshuler, Roman Zinovievich – 1-0 – Estrin, Yakov – G9 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Bc5 5. Nc3 d6 6. d4 exd4 7. Nxd4 Bd7 8. Nf5 Bxf5 9. exf5 Qd7 10. Re1+ Kf8
1960 Avantgard Ch – Round 12 – Poliak, Evsey – 1/2-1/2 – Sakhanovich – G66 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Bc5 5. Nc3 Nd4 6. Nxd4 Bxd4 7. d3 c6 8. Bc4 d5 9. exd5 Nxd5 10. Nxd5 cxd5
1960 Varna – Round 13 – Karastoichev, Emil – 1/2-1/2 – Milev, Zdravko – G22 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bc5 5. O-O Nd4 6. Nxd4 Bxd4 7. d3 O-O 8. Bg5 c6 9. Bc4 h6 10. Bh4 d6
1965 Moscow RUS – Round ? – Aronin, Lev – 1-0 – Makarov, Andrei – G10 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. Nc3 Bc5 5. O-O d6 6. d4 exd4 7. Nxd4 Bd7 8. Bxc6 bxc6 9. Bg5 h6 10. Bh4 O-O
1966 La Habana olm fin-D – Round 7 – Tarazi, Andre – 0-1 – Casa, Alex – G14 1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. O-O Nf6 5. Nc3 Qe7 6. d3 h6 7. h3 O-O 8. Ne2 d6 9. Ng3 Bb6 10. c3 Nh7
1969 Buenos Aires ch-ARG – Round 3 – Castelli, Abele – 0-1 – Bronstein, Luis Marcos – G16 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bc5 5. O-O d6 6. d4 exd4 7. Nxd4 Bd7 8. Nf5 Bxf5 9. exf5 h6 10. Re1+ Kf8
41. Olympiad Open 2014 – Round 1.28 – Perunovic, Milos – 1-0 – Ishak, Rashid – G45 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bc5 5. O-O O-O 6. Nxe5 Nxe5 7. d4 a6 8. Be2 Bxd4 9. Qxd4 Nc6 10. Qd3 d6
43. Olympiad 2018 – Round 1.34 – Naiditsch, Arkadij – 1-0 – Gurbanov Ali Arslan – G48 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bc5 5. O-O O-O 6. Bxc6 dxc6 7. d3 Re8 8. h3 Bf8 9. Ne2 a5 10. Ng3 a4
43. Olympiad 2018 – Round 7.6 – Kovalev, Vladislavadislav – 1/2-1/2 – Aronian, Levon – G483 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bc5 5. O-O O-O 6. Nxe5 Nxe5 7. d4 Bd6 8. f4 Neg4 9. e5 Bb4 10. f5 Re8
FIDE World Cup 2025 – Round R1 Classical 2 – Haik M. Martirosyan – 1-0 – Cahaya Satria Duta – G100 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Nd5 Nxd5 8. exd5 Nb8 9. Qd3 a6 10. Qa3 Be7
Linares 1993 – Round 7 – Ljubojevic, Ljubomir – 1-0 – Beliavsky, Alexander G – G30 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Bc5 5. Nc3 O-O 6. Nxe5 Re8 7. Nf3 Nxe4 8. d4 Nxc3 9. bxc3 Bf8 10. Ng5 h6
Qatar Masters Open 2015 – Round 3.32 – Wang, Yiye – 1-0 – Shankland, Sam – G113 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bc5 5. O-O O-O 6. Nxe5 Nxe5 7. d4 Bd6 8. f4 Neg4 9. h3 Bb4 10. hxg4 Bxc3
World Rapid 2019 – Round 12.19 – Yu, Yangyi – 1-0 – Nikolov, Nikolay Petrov – G762 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bc5 5. O-O O-O 6. d3 Nd4 7. Nxd4 Bxd4 8. Ne2 Bb6 9. Ng3 c6 10. Ba4 d5

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