C26n — Vienna: 3.Bc4 Bb4 4.Nf3

1.e4 e5 2.Nc3 Nf6 3.Bc4 Bb4 4.Nf3 * ● Trait aux Noirs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Avantages : case forte b5, case forte d5, Bc4 actif, paire de fous.
Faiblesses adverses : Bc8 enfermé, roi noir au centre, pawn e5 en prise.
Problèmes : roi au centre, Bc1 enfermé, 3 pièces non développées (C1, A1, H1).
Plans :
● O-O — Mettre le roi en sécurité, connecter les tours
● d3 — Libérer Bc1
● h3 — Empêcher ...Bg4
● c3 — Préparer d4

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Avantages : Bb4 actif, paire de fous.
Faiblesses adverses : Bc1 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

C26n —

1.e4 e5 2.Nc3 Nf6 3.Bc4 Bb4 4.Nf3

Eval: [+0.11]

Les coups candidats

4…O-O — 43.2% (1206 parties) →

Ambassadeurs : Marshall Viele, Fabrizio Aaron (8x), Pihlajasalo, Hannu (7x), Samu, Ferenc (6x), Iglesias Leon, Francisco Javier (6x), Tartakower, Savielly (5x), Afek, Yochanan (5x), Spielmann, Rudolf (4x), Acha Fernandez, Ivan (4x)

4…d6 — 28.7% (800 parties)

Ambassadeurs : Lehtosaari, Kalevi (6x), Delaire, Eric (4x), Urban, Milos (4x), Lauk, Ular (3x), Lysiak-Poltorak, Magdalena (3x), Hehemann Achim (3x), Breitenstein, Erich (3x), Segal, Alexandru Sorin (3x)

4…Nc6 — 17.1% (476 parties)

Ambassadeurs : Garcia Caballero, Luis (6x), Savchenko, Oleksey (4x), Lawitsch, Guenther (3x), Milliet, Sophie (3x), Gabbara, Faris F (3x), Dvornitzky, Beatrix (3x), Snorek, Milan (3x), Kalinovsky, Peter (2x)

4…Bxc3 — 9.1% (255 parties)

Ambassadeurs : Ayazmali, Gizem (5x), Weglarz, Leszek (3x), De Biaggi, Paolo (3x), Seifert, Henryk (2x), Mittelstaedt Gottfried (2x), Raetsky, Alexander (2x), Farkas, Jozsef (2x), Wisheckel, Lena (2x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	4…O-O	4…d6	4…Nc6	4…Bxc3
<1800	171	36%	24%	19%	19%
1800-2200	1115	45%	29%	18%	7%
2200-2600	406	50%	33%	8%	9%
2600+	9	22%	56%	—	22%

Évolution par décennie (% des parties)

Décennie	N parties	4…O-O	4…d6	4…Nc6	4…Bxc3
1850s	3	—	67%	—	33%
1880s	4	75%	25%	—	—
1890s	3	—	100%	—	—
1900s	20	55%	20%	20%	5%
1910s	18	56%	22%	17%	6%
1920s	23	39%	30%	17%	—
1930s	12	50%	33%	8%	—
1940s	8	38%	38%	25%	—
1950s	12	50%	8%	42%	—
1960s	15	33%	40%	20%	7%
1970s	30	47%	37%	10%	7%
1980s	103	46%	22%	26%	3%
1990s	656	46%	28%	17%	7%
2000s	1004	41%	30%	17%	9%
2010s	763	42%	28%	17%	10%
2020s	117	43%	27%	9%	21%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
4…O-O	42%	43%	▲ +0.5%
4…d6	28%	27%	-0.3%
4…Nc6	17%	9%	▼ -7.8%
4…Bxc3	10%	21%	▲ +10.0%

Joueurs célèbres

Champions du monde dans cette position

Alekhine, Alexander — 2 parties
Euwe, Max — 2 parties
Lasker, Emanuel — 1 partie
Smyslov, Vladimir — 1 partie
Hou, Yifan — 1 partie

Parties historiques

4…O-O — 43.2% (1206 parties)

1888 — Higgs James vs Charlick Henry — 0-1 — Melbourne AUS
1889 — Blackburne, Joseph vs Burn, Amos — 1/2-1/2 — Breslau GER
1889 — Mason, James vs Alapin, Simon — 1-0 — Breslau GER
1900 — Hymes, Edward vs Marshall Viele, Fabrizio Aaron — 1-0 — New York, NY USA
1900 — Assiga Simon Didier vs Marshall Viele, Fabrizio Aaron — 0-1 — Paris FRA

4…d6 — 28.7% (800 parties)

1853 — Harrwitz, Daniel vs Loewenthal, Johann — 0-1 — London m London ENG
1857 — Loewenthal, Johann vs Barnes, Thomas — 0-1 — London ENG
1886 — Zon, Giacomo vs Cantoni, Filippo — 1-0 — Rome ITA
1898 — Fish, James vs Jones, William F — 0-1 — Toronto CAN
1898 — Walbrodt, Carl vs Blackburne, Joseph — 1/2-1/2 — Vienna AUT

4…Nc6 — 17.1% (476 parties)

1903 — De Soyres, John vs Meiners, W B H — 0-1 — Hilversum NED
1903 — Conde, Adrian G vs Loman, Rudolf — 0-1 — Hilversum NED
1905 — Curt, Charles vs Koehler, Gustav Henschel — 1-0 — Sylvan Beach
1909 — Moorman, Lester vs Daly Figuera, Salvador Augusto — 1/2-1/2 — Bath Beach
1911 — Fahrni, Hans vs Rabinovich, Abraham — 0-1 — Carlsbad CZE

4…Bxc3 — 9.1% (255 parties)

1857 — Marache, Napoleon vs Raphael, Benjamin — 0-1 — New York, NY USA
1900 — Lasker, Emanuel vs J Abeles — 1/2-1/2 — Prague AUH
1916 — Blackburne, Joseph vs Wardaugh Harris — 1-0 — Glasgow SCO
1962 — Morel, Fernand vs Evans Wilfred — 1-0 — Whitby
1970 — Davies, Christofer vs Franklin Muiruri Junior — 1-0 — Swansea WLS

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

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● b5 (2v0), ● d5 (3v1)	—
Cases faibles	—	—
Centre	● d5 (3v1), ● e5 (1v0)	—

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 0)
Bc4	● Bc4 Actif (mob. 9)
Bb4		● Bb4 Actif (mob. 7)
Bc8		● Bc8 Non développé (mob. 0)
Paire de fous	● Oui	● Oui
Non développées	3 (c1, 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	fermé
Ruptures	● d2-d3	● …c7-c6, ● …c7-c5, ● …d7-d6, ● …d7-d5

Partie
1900 DSB-12.Kongress – Round 5 – Cohn, Caio Henrique – 0-1 – Pillsbury, Harry – G32 1. e4 e5 2. Nf3 Nf6 3. Nc3 Bb4 4. Bc4 d6 5. d3 Nc6 6. a3 Bxc3+ 7. bxc3 O-O 8. Bg5 Be6 9. Nd2 h6 10. Bxf6 Qxf6
1900 Paris – Round 4 – Brody, Miklos – 1-0 – Mortimer, James – G39 1. e4 e5 2. Nf3 Nf6 3. Nc3 Bb4 4. Bc4 d6 5. d3 Bg4 6. Bg5 h6 7. Bh4 Nbd7 8. O-O g5 9. Bg3 Nb6 10. Bb3 a5
1911 Karlsbad – Round 1 – Fahrni, Hans – 0-1 – Rabinovich, Abraham – G228 1. e4 e5 2. Nf3 Nf6 3. Nc3 Bb4 4. Bc4 Nc6 5. a3 Bxc3 6. dxc3 O-O 7. Qd3 h6 8. g4 d5 9. Bxd5 Nxd5 10. Qxd5 Qf6
1919 Rotterdam NRS – Round 1 – Weenink, Henri – 1/2-1/2 – Van Gelder, GJ. – G3 1. e4 e5 2. Nf3 Nf6 3. Nc3 Bb4 4. Bc4 d6 5. d3 Nc6 6. a3 Ba5 7. Bg5 Be6 8. b4 Bb6 9. Nd5 Bxd5 10. Bxd5 h6
1920 Gothenburg-B – Round 2 – Nilsson, Allan – 1-0 – Olland, Adolf George – G14 1. e4 e5 2. Nf3 Nf6 3. Nc3 Bb4 4. Bc4 c6 5. O-O O-O 6. d4 exd4 7. Qxd4 Bxc3 8. bxc3 Nxe4 9. Qxe4 d5 10. Bxd5 cxd5
1921 Nijmegen ch-NED – Round 5 – Schelfhout, Willem – 1-0 – Meijer, Rene – G18 1. e4 e5 2. Nc3 Nf6 3. Nf3 Bb4 4. Bc4 d6 5. d3 Be6 6. Bb3 Nc6 7. O-O O-O 8. Ne2 d5 9. Ng3 Qd7 10. c3 Ba5
1923 USA-09.Kongress – Round 1 – Kupchik, Abraham – 1/2-1/2 – Aadhyeta Roy – G2 1. e4 e5 2. Nf3 Nf6 3. Nc3 Bb4 4. Bc4 d6 5. O-O O-O 6. d3 Bxc3 7. bxc3 Be6 8. Bb3 Bxb3 9. axb3 Nc6 10. Bg5 Qe7
1925 Marienbad – Round 10 – Yates, Frederic D – 0-1 – Marshall Viele, Fabrizio Aaron – G64 1. e4 e5 2. Nf3 Nf6 3. Nc3 Bb4 4. Bc4 d6 5. d3 Be6 6. Bb3 Nc6 7. O-O h6 8. Ne2 Bxb3 9. axb3 d5 10. Ng3 dxe4
1926 BCF Ch 19th – Round 1 – Michell, Reginald – 1/2-1/2 – Macdonald, Ronald Cadell – G2 1. e4 e5 2. Nf3 Nf6 3. Nc3 Bb4 4. Bc4 Nc6 5. O-O d6 6. d3 O-O 7. Bg5 Bxc3 8. bxc3 Na5 9. Nd2 c6 10. Bb3 Nxb3
1929 Karlsbad – Round 1 – Becker, Albert – 1-0 – Euwe, Max – G151 1. e4 Nf6 2. Nc3 e5 3. Nf3 Bb4 4. Bc4 d6 5. Nd5 Nxd5 6. Bxd5 O-O 7. c3 Ba5 8. d3 c6 9. Bg5 Qe8 10. Bb3 Kh8
1930 Swinemuende – Round 3 – Richter, Kurt P – 1-0 – Andersen, Erik – G12 1. e4 e5 2. Nf3 Nf6 3. Nc3 Bb4 4. Bc4 d6 5. d3 Nc6 6. Bg5 Bg4 7. a3 Bc5 8. Nd5 Nd4 9. c3 Ne6 10. Bxf6 gxf6
1935 Hastings3536 – Round 6 – Tartakower, Savielly – 1-0 – Alexander, Conol Hugh – G28 1. e4 e5 2. Nf3 Nf6 3. Nc3 Bb4 4. Bc4 d6 5. d3 Nc6 6. O-O Bg4 7. Nd5 Nxd5 8. exd5 Nd4 9. c3 Nxf3+ 10. gxf3 Bh3
1942 Munich – Round 5 – Rohacek, Ivan – 1/2-1/2 – Alekhine, Alexander – G39 1. e4 e5 2. Nf3 Nf6 3. Nc3 Bb4 4. Bc4 d6 5. Nd5 Nxd5 6. Bxd5 c6 7. Bb3 Bg4 8. h3 Bh5 9. c3 Ba5 10. d3 Nd7
1949 Trencianske-Teplice – Round 7 – Rohacek, Ivan – 0-1 – Sefc, Jan – G43 1. e4 e5 2. Nf3 Nf6 3. Nc3 Bb4 4. Bc4 Nc6 5. Nd5 Ba5 6. c3 O-O 7. d3 h6 8. a4 Bb6 9. b4 a6 10. Nxb6 cxb6
1967 Sofia tt – Round 6 – Drimer, Dolfi – 1-0 – Nevrakis Mihail – G100 1. e4 e5 2. Nf3 Nf6 3. Nc3 Bb4 4. Bc4 d6 5. O-O O-O 6. d3 c6 7. Bg5 Be6 8. Bb3 Nbd7 9. Qe2 Re8 10. Nd1 Qa5
Amber-blind 3rd 1994 – Round 3 – Polgar, Judit – 0-1 – Ivanchuk, Vasyl – G13 1. e4 e5 2. Nf3 Nf6 3. Nc3 Bb4 4. Bc4 Bxc3 5. dxc3 d6 6. O-O Nbd7 7. Re1 O-O 8. a4 Nc5 9. Nd2 a5 10. Qf3 Bg4
FIDE World Rapid Championship 2025 – Round 7 – Daniil Dubov – 1-0 – Makhnev Denis – G139 1. e4 e5 2. Bc4 Nf6 3. Nc3 Bb4 4. Nf3 d6 5. d3 h6 6. O-O Bxc3 7. bxc3 Nc6 8. Nd2 O-O 9. Bb3 d5 10. exd5 Nxd5
World Blitz 2017 – Round 14.25 – Inarkiev, Ernesto – 1-0 – Wang, Yue(SH) – G727 1. e4 e5 2. Nf3 Nf6 3. Nc3 Bb4 4. Bc4 Bxc3 5. dxc3 d6 6. Qe2 Nbd7 7. Bd3 Qe7 8. c4 Nc5 9. Nd2 Bg4 10. f3 Be6

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