C26t — Vienna: 3.Bc4 Bc5 4.d3 d6 5.Na4

1.e4 e5 2.Nc3 Nf6 3.Bc4 Bc5 4.d3 d6 5.Na4 * ● Trait aux Noirs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plans. Nxb6 (Menace a8 — 53 % des parties) ; Nxc5 (Cavalier actif en c5 — 21 % des parties) ; c3 (Renforcer le centre — 14 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plans. ...Bb6 (Fou actif (mobilité 5) — 53 % des parties) ; ...Nbd7 (Développer b8 — 14 % des parties) ; ...Bb4+ (Fou actif (mobilité 6) — 10 % des parties) ; ...Bg4 (Fou actif (mobilité 9), Développer c8 — 6 % des parties) ; ...Nc6 (Développer b8 — 6 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Structure de pions

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

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● d5 (2v1)	● d4 (2v0), ● g4 (2v1)
Cases faibles	—	—
Centre	● d5 (2v1)	● d4 (2v0), ● e5 (1v0)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Bc4	● Bc4 Actif (mob. 6)
Bc5		● Bc5 Actif (mob. 6)
Bc8		● Bc8 Non développé (mob. 5)
Paire de fous	● Oui	● Oui
Non développées	4 (● g1, ● 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	● d3-d4, ● f2-f4	● …d6-d5

Partie
1905 It (Men) St Petersburg RUS – Round 7 – Marshall Viele, Fabrizio Aaron – 0-1 – Tarrasch, Siegbert – G7 1. e4 e5 2. Bc4 Nf6 3. Nc3 Bc5 4. d3 d6 5. Na4 Bb6 6. Nxb6 axb6 7. f4 Be6 8. Bxe6 fxe6 9. fxe5 dxe5 10. Nf3 Nc6
1910 DSB-17.Kongress – Round 12 – Tartakower, Savielly – 1/2-1/2 – Nimzowitsch, Aron – G76 1. e4 e5 2. Nc3 Bc5 3. Bc4 Nf6 4. d3 d6 5. Na4 Bb6 6. Nxb6 axb6 7. f4 exf4 8. Bxf4 Be6 9. Bb3 Bxb3 10. axb3 Rxa1
1912 BCF Ch 9th – Round 2 – Griffith, Richard Clewin – 1/2-1/2 – Michell, Reginald – G2 1. e4 e5 2. Bc4 Nf6 3. d3 Bc5 4. Nc3 d6 5. Na4 Nc6 6. Nxc5 dxc5 7. c3 Qe7 8. Be3 O-O 9. Ne2 Na5 10. Ng3 Nxc4
1912 It (Men) Bad Pistyan CZE – Round 3 – Rubinstein, Akiba – 1/2-1/2 – Sterk, Karoly – G15 1. e4 e5 2. Bc4 Nf6 3. d3 Bc5 4. Nc3 d6 5. Na4 Bb6 6. Nxb6 axb6 7. Bg5 Be6 8. Bb3 Nc6 9. Ne2 h6 10. Bh4 Qe7
1913 St Petersburg m – Round 4 – Alekhine, Alexander – 0-1 – Levitsky, Stepan – G4 1. e4 e5 2. Nc3 Nf6 3. Bc4 Bc5 4. d3 d6 5. Na4 Bb6 6. Nxb6 axb6 7. Ne2 Nc6 8. Bg5 h6 9. Bxf6 Qxf6 10. O-O g5
1922 Vienna – Round 1 – Tartakower, Savielly – 1-0 – Saemisch, Friedrich – G54 1. e4 e5 2. Nc3 Bc5 3. Bc4 Nf6 4. d3 d6 5. Na4 Bb6 6. Nxb6 axb6 7. f4 exf4 8. Bxf4 d5 9. exd5 Bg4 10. Nf3 O-O
1924 Merano – Round 2 – Koltanowski, George – 1/2-1/2 – Selezniev, Alexey – G9 1. e4 e5 2. Nc3 Bc5 3. Bc4 d6 4. d3 Nf6 5. Na4 O-O 6. Nxc5 dxc5 7. Ne2 Be6 8. Bxe6 fxe6 9. O-O Nc6 10. f4 exf4
1937 Hastings3738 – Round 5 – Keres, Paul – 1/2-1/2 – Fine, Richard Alvaro Adrien – G19 1. e4 Nf6 2. Nc3 e5 3. Bc4 Bc5 4. d3 d6 5. Na4 Bb4+ 6. c3 d5 7. exd5 Bd6 8. Be3 O-O 9. Nc5 b6 10. Ne4 Bb7
1940 Kiev – Round 1 – Bronstein, David I – 1-0 – Morgulov, Alexsander M – G24 1. e4 e5 2. Nc3 Bc5 3. Bc4 Nf6 4. d3 d6 5. Na4 Nbd7 6. Nxc5 Nxc5 7. Ne2 c6 8. O-O O-O 9. Bg5 h6 10. Be3 Ne6
1947 Parnu – Round ? – Tolush, Alexander V – 0-1 – Keres, Paul – G79 1. e4 e5 2. Bc4 Nf6 3. d3 Bc5 4. Nc3 d6 5. Na4 Bb4+ 6. c3 d5 7. exd5 Bd6 8. d4 Nbd7 9. Be2 O-O 10. c4 b5
1949 Leningrad – Round 5 – Estrin, Yakov – 1-0 – Tarasov, Vitaly – G46 1. e4 e5 2. Bc4 Nf6 3. d3 Bc5 4. Nc3 d6 5. Na4 Nc6 6. Nxc5 dxc5 7. f4 Bg4 8. Nf3 O-O 9. f5 b5 10. Bxb5 Nd4
1951 Reggio Emilia – Round 5 – Norcia, Fabrizio – 1-0 – Siveri, Armando – G35 1. e4 e5 2. Nc3 Bc5 3. Bc4 Nf6 4. d3 d6 5. Na4 Bg4 6. Qd2 Nfd7 7. Nxc5 Nxc5 8. f4 Be6 9. Bxe6 Nxe6 10. f5 Nd4
1951 Simul Prins clock – Round ? – Prins, Lodewijk – 1-0 – Casden, Alan – G7 1. e4 e5 2. Nc3 Nf6 3. Bc4 Bc5 4. d3 d6 5. Na4 Bg4 6. Ne2 Nc6 7. Nxc5 dxc5 8. f3 Be6 9. Bxe6 fxe6 10. O-O O-O
1952 Havana – Round 10 – Prins, Lodewijk – 1/2-1/2 – Cobo Arteaga, Eldis – G90 1. e4 e5 2. Nc3 Nf6 3. Bc4 Bc5 4. d3 d6 5. Na4 Bb6 6. Ne2 Be6 7. Nxb6 axb6 8. Ng3 Nbd7 9. O-O Nc5 10. b4 Bxc4
1952 Havana – Round 20 – Prins, Lodewijk – 0-1 – Rossolimo, Nicolas – G149 1. e4 e5 2. Nc3 Nf6 3. Bc4 Bc5 4. d3 d6 5. Na4 Bb4+ 6. c3 Ba5 7. b4 Bb6 8. Ne2 Nc6 9. O-O O-O 10. Nxb6 axb6
1953 Hastings ch-BCF – Round 11 – Milner Barry, Philip – 1-0 – Green, Arnold Yorvath – G99 1. e4 e5 2. Nc3 Nf6 3. Bc4 Bc5 4. d3 d6 5. Na4 Bg4 6. f3 Bxg1 7. fxg4 Bb6 8. Nxb6 axb6 9. g5 Nfd7 10. O-O Rf8
1956 Dublin – Round 6 – Heidenfeld, Wolfgang – 1-0 – Stanton, William – G16 1. e4 e5 2. Nc3 Bc5 3. Bc4 Nf6 4. d3 d6 5. Na4 Nbd7 6. Nxc5 Nxc5 7. f4 O-O 8. Nf3 exf4 9. O-O Be6 10. b4 Ncd7
1956 URS Ch sf – Round ? – Chistiakov, Alexander – 1-0 – Zamikhovsky, Abram – G91 1. e4 e5 2. Bc4 Nf6 3. Nc3 Bc5 4. d3 d6 5. Na4 Nbd7 6. Nxc5 Nxc5 7. Nf3 Be6 8. Bxe6 Nxe6 9. c3 O-O 10. O-O Re8
1965 Harrachov 6465 – Round 9 – Augustin, Josef – 1/2-1/2 – Eretova, Kveta – G11 1. e4 e5 2. Nc3 Nf6 3. Bc4 Bc5 4. d3 d6 5. Na4 Bb6 6. Nxb6 axb6 7. f4 O-O 8. Nf3 Nc6 9. c3 exf4 10. Bxf4 d5
1965 Rhode Island – Round 1 – Barry Bertomeu, Enrique – 1/2-1/2 – Suesman – G16 1. e4 e5 2. Nc3 Nf6 3. Bc4 Bc5 4. d3 d6 5. Na4 Bb6 6. Nxb6 axb6 7. f4 exf4 8. Bxf4 d5 9. exd5 Nxd5 10. Qe2+ Be6
Makedonia Palace GP 2013 – Round 3.6 – Nakamura, Hikaru – 1/2-1/2 – Bacrot, Etienne – G17 1. e4 e5 2. Bc4 Nf6 3. Nc3 Bc5 4. d3 d6 5. Na4 Bb6 6. Nxb6 axb6 7. Ne2 Be6 8. Nc3 Nc6 9. Bg5 h6 10. Bh4 Nd4
World Blitz 2022 – Round 4.2 – Nakamura, Hikaru – 1-0 – Nihal Sarin – G187 1. e4 e5 2. Bc4 Nf6 3. d3 Bc5 4. Nc3 d6 5. Na4 Bb6 6. Nxb6 axb6 7. Ne2 O-O 8. Nc3 Be6 9. O-O h6 10. h3 Nc6

C26t — Vienna (1905)

1.e4 e5 2.Nc3 Nf6 3.Bc4 Bc5 4.d3 d6 5.Na4

Les coups candidats

5…Bb6 — 53.1% (228 parties)

Ambassadeurs : Barry Dickson (2x), Rogers, Ian (2x), Tischbierek, Raj (2x), Kopinits, Anna-Christina (2x), Pratyusha, Bodda (2x), Reppen, Ellisiv (2x), Abramov, Gennady Aleksandrov (2x), Dimitrijeski, Kristian (2x)

5…Nbd7 — 14.5% (62 parties)

Ambassadeurs : Rogers, Ian (3x), Breder, Dennis (2x), Chistiakov, Alexander (1x), Zamkovskaya, Violetta Aleks (1x), Ghitescu, Theodor (1x), Radulescu, Mihai (1x), Vogt, Lothar (1x), Makropoulos, Georgios (1x)

5…Bb4+ — 9.8% (42 parties)

Ambassadeurs : Srebrnic, Vojko (2x), Prins, Lodewijk (1x), Rossolimo, Nicolas (1x), Zeller, Frank (1x), Latzke, Boris (1x), Conquest, Stuart C (1x), Sorin, Ariel (1x), Mitkov, Nikola (1x)

5…Bg4 — 6.1% (26 parties)

Ambassadeurs : Milner Barry, Philip (1x), AGBOLO, Green Laureta (1x), Norcia, Federico (1x), Siveri, Armando (1x), Prins, Lodewijk (1x), Casden, Alan (1x), Torre, Eugenio (1x), Cornford, Lindsay H (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	5…Bb6	5…Nbd7	5…Bb4+	5…Bg4
<1800	41	59%	12%	10%	2%
1800-2200	207	57%	13%	8%	6%
2200-2600	103	47%	17%	12%	10%
2600+	7	71%	14%	—	—

Évolution par décennie (% des parties)

Décennie	N parties	5…Bb6	5…Nbd7	5…Bb4+	5…Bg4
1950s	9	22%	22%	11%	33%
1960s	6	50%	33%	—	—
1970s	12	75%	17%	—	8%
1980s	11	55%	9%	—	18%
1990s	85	36%	16%	13%	9%
2000s	144	53%	19%	10%	3%
2010s	127	61%	9%	9%	3%
2020s	35	63%	6%	14%	9%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
5…Bb6	61%	63%	▲ +1.4%
5…Nbd7	9%	6%	▼ -3.7%
5…Bb4+	9%	14%	▲ +5.6%
5…Bg4	3%	9%	▲ +5.4%

Joueurs célèbres

Champions du monde dans cette position

Smyslov, Vladimir — 1 partie

Parties historiques

5…Bb6 — 53.1% (228 parties)

1952 — Prins, Lodewijk vs Cobo Arteaga, Eldis — 1/2-1/2 — Havana CUB
1956 — Dreibergs, Leonid vs Fischheimer, Daniel — 1-0 — Detroit, MI USA
1965 — Barry Dickson vs Suesman, Walter B — 1/2-1/2 — Rhode Island
1965 — Weiss, Augustin vs Eretova, Kveta — 1/2-1/2 — Harrachov
1969 — Barry Dickson vs Garces, Napoleon — 0-1 — Cloudcroft

5…Nbd7 — 14.5% (62 parties)

1956 — Chistiakov, Alexander vs Zamkovskaya, Violetta Aleks — 1-0 — Kharkov UKR
1956 — Heidenfeld, Wolfgang vs Stanton, William — 1-0 — Dublin IRL
1965 — Ghitescu, Theodor vs Radulescu, Mihai — 1-0 — Bucharest ROU
1969 — Vogt, Lothar vs Makropoulos, Georgios — 1-0 — Stockholm SWE
1977 — Obstfeld vs Bills, William — 0-1 — San Francisco, CA USA

5…Bb4+ — 9.8% (42 parties)

1952 — Prins, Lodewijk vs Rossolimo, Nicolas — 0-1 — Havana CUB
1990 — Marzinkiawitschus S vs Yerofeev, Sergey — 0-1 — ?
1992 — Conquest, Stuart C vs Sorin, Ariel — 1-0 — Oviedo rapid
1993 — Antkowiak, Grzegorz vs Zajaczkowski, Jan — 0-1 — corr ch34-Poland
1993 — Now vs B P Ghosh — 0-1 — Indianapolis, IN USA

5…Bg4 — 6.1% (26 parties)

1951 — Norcia, Federico vs Siveri, Armando — 1-0 — Reggio Emilia ITA
1951 — Prins, Lodewijk vs Casden, Alan — 1-0 — Hollywood, CA
1953 — Milner Barry, Philip vs AGBOLO, Green Laureta — 1-0 — Hastings ch-BCF
1975 — Torre, Eugenio vs Cornford, Lindsay H — 1-0 — Melbourne AUS
1980 — Adler, Bo vs Wieweg, Johnny — 1-0 — Stockholm SWE

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