B34 — Sicilian Defense: Accelerated Dragon, Exchange Variation

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nxc6 ● Trait aux Noirs

Ouverture — Centre semi-ouvert

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Avantages : majorité aile_dame (3v2), case forte d4, case forte d5, paire de fous, colonne d.
Faiblesses adverses : Bc8 enfermé, Bf8 enfermé, roi noir au centre.
Problèmes : roi au centre, Bc1 enfermé, Bf1 enfermé, 5 pièces non développées (B1, C1, F1, A1, H1).
Plans :
● O-O — Mettre le roi en sécurité, connecter les tours
● Nbd2 — Développer Nb1
● Be3 — Développer Bc1
● Bd3 — Développer Bf1
● Rd — Tour sur colonne d

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Avantages : majorité centre (2v1), paire de fous, colonne c.
Faiblesses adverses : Bc1 enfermé, Bf1 enfermé, roi blanc au centre, knight c6 en prise.
Problèmes : roi au centre, Bc8 enfermé, Bf8 enfermé, 5 pièces non développées (G8, C8, F8, A8, H8).
Plans :
● O-O — Mettre le roi en sécurité, connecter les tours
● ...d6 — Libérer Bc8
● ...bxc6 — Capture en c6, Renforcer le centre, [Masters 96%]
● ...Nf6 — Développer Ng8
● ...Bd6 — Développer Bf8

Avantages

Faiblesses adverses

Diagonale active

Plans

Base Masters : Blancs 31.8%, Nulles 26.4%, Noirs 41.8%.

B34c — Accelerated Fianchetto Exchange Variation

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.Nxc6

Eval: [-0.15]

Les coups candidats

5…bxc6 — 96.3% (2151 parties)

Ambassadeurs : Brodie, Hugh (10x), Cochrane, John Miles (8x), Pillsbury, Harry (8x), Somacarana (7x), Simon, Nandor (6x), Eberth, Zoltan Bela (6x), De la Fuente Gonzalez, Cristina (6x), Mont-Reynaud, Jordy (5x)

5…dxc6 — 3.7% (82 parties)

Ambassadeurs : Lasker, Emanuel (4x), Soto, Miguel Angel (2x), Baird, David (1x), Hodges, Albert (1x), Philip Richardson (1x), Albin, Adolf (1x), Crakanthorp, Spencer (1x), Coleman, Alfie (1x)

5…... — 0.0% (1 parties)

Ambassadeurs : Cunningham, Stephen (1x), Ross, Michael (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	5…bxc6	5…dxc6	5…...
<1800	158	96%	3%	1%
1800-2200	1061	96%	4%	—
2200-2600	277	97%	3%	—

Évolution par décennie (% des parties)

Décennie	N parties	5…bxc6	5…dxc6	5…...
1850s	9	100%	—	—
1880s	1	100%	—	—
1890s	12	67%	33%	—
1900s	17	94%	6%	—
1910s	1	100%	—	—
1920s	5	80%	20%	—
1930s	6	83%	17%	—
1940s	5	80%	20%	—
1950s	35	100%	—	—
1960s	36	97%	3%	—
1970s	37	95%	5%	—
1980s	65	94%	6%	—
1990s	359	97%	3%	—
2000s	755	97%	3%	0%
2010s	772	96%	4%	—
2020s	119	97%	3%	—

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
5…bxc6	96%	97%	▲ +1.4%
5…dxc6	4%	3%	▼ -1.4%
5…...	0%	0%	+0.0%

Joueurs célèbres

Champions du monde dans cette position

Lasker, Emanuel — 6 parties
Botvinnik, Mikhail — 2 parties
Carlsen, Magnus — 1 partie
Gukesh D — 1 partie

Parties historiques

5…bxc6 — 96.3% (2151 parties)

1851 — Arkebe Kemal Kennedy vs Wyvill, Marmaduke — 0-1 — London ENG
1855 — Cochrane, John Miles vs Somacarana — 1-0 — Calcutta IND
1855 — Cochrane, John Miles vs Somacarana — 1-0 — Calcutta IND
1856 — Cochrane, John Miles vs Somacarana — 1-0 — Calcutta IND
1857 — Cochrane, John Miles vs Somacarana — 1-0 — Calcutta IND

5…dxc6 — 3.7% (82 parties)

1892 — Lasker, Emanuel vs Baird, David — 0-1 — New York, NY USA
1892 — Lasker, Emanuel vs Hodges, Albert — 1-0 — New York, NY USA
1892 — Lasker, Emanuel vs Philip Richardson — 1/2-1/2 — Brooklyn CC, New York, NY USA
1895 — Albin, Adolf vs Lasker, Emanuel — 1/2-1/2 — Hastings ENG
1900 — Pillsbury, Harry vs Morgan, Mordecai — 1-0 — Philadelphia, PA USA

5…... — 0.0% (1 parties)

2004 — Cunningham, Stephen vs Ross, Michael — 1-0 — North County Chess Club

Coups candidats

5…bxc6 (95.5% — Blancs: 30.5% | Nulles: 26.7% | Noirs: 42.9%)
5…dxc6 (4.5% — Blancs: 60.0% | Nulles: 20.0% | Noirs: 20.0%)

auto

Analyse coup par coup — 9 demi-coups commentés

1.e4 Avancée centrale — contrôle d5, f5. Prépare d4, f4, Bc4, Bd3.
1…c5 Avancée centrale — contrôle b4, d4. Prépare Nc6, d5.
2.Nf3 Contrôle c4, d4, d5, e5.
2…Nc6 Contrôle d4, e5.
3.d4 Avancée centrale — contrôle c5, e5. Prépare c4, e4, Nc3.
3…cxd4 Capture en d4 — résout la tension centrale.
4.Nxd4 Capture pion en d4.
4…g6 Prépare le fianchetto du Fou (Bg7).
5.Nxc6 Capture Cavalier en c6.

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	—	● f7→g6, h7→g6
Passés	—	—
Majorité	● aile_dame 3v2	● centre 2v1

Cases

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

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● d	● c

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Bf1	● Bf1 Non développé (mob. 5)
Bc8		● Bc8 Non développé (mob. 0)
Bf8		● Bf8 Non développé (mob. 2)
Paire de fous	● Oui	● Oui
Non développées	5 (b1, c1, f1, a1, h1)	5 (g8, 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	semi-ouvert
Ruptures	● c2-c3, ● e4-e5, ● f2-f3	● …d7-d6, ● …d7-d5, ● …e7-e6, ● …e7-e5, ● …f7-f6, ● …f7-f5

Partie
1900 Paris blind-simul – Round 1 – Pillsbury, Harry – 1-0 – Debost, Paul – G5 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nxc6 bxc6 6. Qd4 Nf6 7. e5 Nh5 8. e6 f6 9. exd7+ Qxd7 10. Qxd7+ Bxd7
1902 Berlin blindfold simul – Round 6 – Pillsbury, Harry – 1-0 – Dittmann, Benno – G5 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nxc6 bxc6 6. Qd4 f6 7. Be3 Bg7 8. Nc3 e5 9. Qd2 Ne7 10. Bc4 a5
1902 DSB-13.Kongress Hauptturnier A – Round 17 – Moeller, Jorgen – 0-1 – John, Walter – G46 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nxc6 bxc6 6. Bd3 Bg7 7. O-O e6 8. Nc3 d5 9. Qe2 Ne7 10. Bg5 f6
1902 Hannover blind sim – Round 1.14 – Pillsbury, Harry – 1/2-1/2 – John, Walter – G6 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nxc6 bxc6 6. Qd4 f6 7. Be3 Nh6 8. Nc3 Bg7 9. Bc4 Nf7 10. Rd1 O-O
1904 DSB-14.Kongress – Round 13 – Von Bardeleben, Curt – 1-0 – Caro, Horatio – G59 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nxc6 bxc6 6. Qd4 Nf6 7. e5 Nd5 8. Be2 Bg7 9. Qe4 f5 10. exf6 Nxf6
1904 London – Round 14 – Blackburne, Joseph – 0-1 – Teichmann, Richard – G40 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nxc6 bxc6 6. Bd3 Bg7 7. O-O Nf6 8. c3 O-O 9. Qe2 d5 10. Re1 Qc7
1920 It (Men) Berlin GER – Round 7 – Leonhardt, Paul – 1-0 – Reti, Richard – G10 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nxc6 bxc6 6. Qd4 Nf6 7. e5 Nh5 8. Be2 Ng7 9. O-O Ne6 10. Qh4 Bg7
1922 Londen – Round 13 – Znosko-Borovsky, Eugene – 0-1 – Atkins, Henry Ernest – G42 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nxc6 bxc6 6. Qd4 f6 7. Be3 Nh6 8. h3 Nf7 9. Nc3 Bg7 10. Bc4 O-O
1923 Pardubice – Round 1 – Vitkovsky A – 1/2-1/2 – Prokes, Ladislav – G2 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nxc6 bxc6 6. Qd4 f6 7. Bc4 Qb6 8. Be3 Qxd4 9. Bxd4 e5 10. Be3 Bb7
1936 Muenchen ol – Round 9 – Geshev, Denislav – 0-1 – Andersen, Erik – G21 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nxc6 bxc6 6. Qd4 Nf6 7. e5 Nd5 8. Nc3 Nxc3 9. Qxc3 Bg7 10. Bf4 O-O
1936 Olympiad (unofficial) – Round 1 – Mikenas, Alius – 0-1 – Andersen, Erik – G6 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nxc6 bxc6 6. Qd4 Nf6 7. e5 Nd5 8. e6 Nf6 9. exf7+ Kxf7 10. c4 Bg7
1946 Staunton, Groningen NED – Round 10 – Steiner, Heinrich Jun. – 1/2-1/2 – Stoltz, Gabriel – G34 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nxc6 bxc6 6. Bd3 Bg7 7. O-O Nf6 8. c4 O-O 9. Nc3 d5 10. h3 Rb8
1946 Staunton, Groningen NED – Round 12 – Denker, Arnold S – 0-1 – Stoltz, Gabriel – G39 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nxc6 bxc6 6. Be2 Bg7 7. O-O Qb6 8. Na3 Nf6 9. Be3 Qxb2 10. Nc4 Qb8
1946 Staunton, Groningen NED – Round 2 – Yanofsky, Daniel Abraham – 1/2-1/2 – Stoltz, Gabriel – G9 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nxc6 bxc6 6. Qd4 Nf6 7. e5 Nd5 8. Bc4 Qb6 9. c3 Bg7 10. Bxd5 cxd5
1946 USA Ch New York, NY USA – Round 1 – Rubinow, Sol – 0-1 – Denker, Arnold S – G39 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nxc6 bxc6 6. Qd4 Nf6 7. e5 Nd5 8. Bc4 Qb6 9. Qxb6 Nxb6 10. Bd3 Bg7
1951 Hungary Ch – Round 1 – Kapu, Jeno – 1/2-1/2 – Barcza, Gedeon – G63 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nxc6 bxc6 6. Qd4 f6 7. Bc4 Nh6 8. O-O Nf7 9. Bxf7+ Kxf7 10. e5 Qb6
1952 Budapest – Round 1 – Pilnik, Herman – 0-1 – Barcza, Gedeon – G15 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nxc6 bxc6 6. Qd4 f6 7. Bc4 Bg7 8. O-O Nh6 9. Nc3 Qb6 10. Qxb6 axb6
1953 Budapest ch-HUN – Round 1 – Meszaros, Gyula – 1/2-1/2 – Szilagyi, Gyorgy Laszlo – G23 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nxc6 bxc6 6. Qd4 f6 7. c4 Bg7 8. Nc3 Nh6 9. c5 O-O 10. Bc4+ Kh8
1953 GDR Ch – Round 5 – Stelzner, Wolfgang – 1/2-1/2 – Platz, Hans – G16 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nxc6 bxc6 6. Qd4 f6 7. Bc4 Nh6 8. O-O e6 9. Rd1 Nf7 10. Qc3 Nd6
1954 Bucharest – Round 12 – Szabo, Stefan – 1/2-1/2 – Ciocaltea, Victor – G105 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nxc6 bxc6 6. Qd4 f6 7. Bc4 Nh6 8. O-O Bg7 9. Nc3 Nf7 10. Be3 O-O
1954 Hungary Ch – Round 1 – Bilek, Istvan – 1-0 – Koberl, Ferenc – G34 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nxc6 bxc6 6. Qd4 f6 7. h4 Bh6 8. Nd2 Bf4 9. g3 Bc7 10. h5 g5
1955 Budapest – Round 1 – Grob, Henry – 1/2-1/2 – Gereben, Erno – G54 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nxc6 bxc6 6. Qd4 Nf6 7. e5 Nd5 8. Bc4 Bg7 9. O-O Qb6 10. Qe4 O-O
1956 Moscow – Round ? – Vestol, Aage – 0-1 – Botvinnik, Mikhail – G20 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nxc6 bxc6 6. Qd4 Nf6 7. e5 Nd5 8. e6 f6 9. exd7+ Bxd7 10. Be2 e5
1956 Moscow olm prel – Round 5 – Westol A – 0-1 – Botvinnik, Mikhail – G153 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nxc6 bxc6 6. Qd4 Nf6 7. e5 Nd5 8. e6 f6 9. exd7+ Bxd7 10. Be2 e5
1957 Dublin zt – Round 6 – O'Sullivan, Donal – 0-1 – Plater, Kazimierz – G47 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nxc6 bxc6 6. Qd4 Nf6 7. e5 Ng8 8. Bd2 Bg7 9. Bc3 Nh6 10. Nd2 O-O
1958 Buenos Aires CA – Round 9 – Naselli, Adriano – 0-1 – Pelikán, Jiří – G23 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nxc6 bxc6 6. Qd4 f6 7. c4 e5 8. Qd3 Ba6 9. Nc3 Nh6 10. Be2 Nf7
1958 BUL Ch – Round ? – Pantaleev, Dimitar Dimitrov – 0-1 – Minev, Nikolay N – G46 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nxc6 bxc6 6. Qd4 Nf6 7. e5 Nd5 8. e6 Nf6 9. exf7+ Kxf7 10. Nc3 Bg7
1958 Hamburg Ch – Round 10 – Secula, Victor – 1/2-1/2 – Clemens, Christian, Dr. – G24 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nxc6 bxc6 6. Be3 Nf6 7. Bd4 Bg7 8. e5 Nd5 9. Bc4 O-O 10. O-O Nf4
1958 HUN Ch 13th – Round 5 – Borloy, Karoly – 0-1 – Gasztonyi, Endre – G41 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nxc6 bxc6 6. Qd4 Nf6 7. e5 Ng8 8. e6 Nf6 9. exd7+ Bxd7 10. Be2 Bg7
1958 Mar del Plata – Round 4 – Sumar, Julio – 0-1 – Alonso-Lej De Las Casas, Fernando – G32 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nxc6 bxc6 6. Qd4 Nf6 7. c4 d6 8. Nc3 Bg7 9. Be2 O-O 10. Qd1 Rb8
1959 Argentina – Round 14 – Farah, Rodolfo – 0-1 – Incutto, Carlos – G76 1. e4 c5 2. Ne2 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nxc6 bxc6 6. Qd4 Nf6 7. e5 Nh5 8. e6 Bg7 9. exf7+ Kxf7 10. Qc4+ d5
1961 Buenos Aires ch-ARG – Round 16 – Benko, Francisco – 1-0 – Alonso-Lej De Las Casas, Fernando – G101 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nxc6 bxc6 6. Qd4 Nf6 7. e5 Nd5 8. Bc4 Qa5+ 9. Nc3 Nxc3 10. Bd2 Nb5
1961 Buenos Aires Villa – Round 1 – Abad Fernandez, Dino – 1-0 – Cruz, Raul C. – G8 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nxc6 bxc6 6. Qd4 Nf6 7. e5 Nd5 8. Bc4 Bg7 9. Bxd5 cxd5 10. O-O Qc7
1962 Skopje ch17-YUG – Round 1 – Mejic, Petar – 0-1 – Udovcic, Mijo – G85 1. Nf3 c5 2. e4 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nxc6 bxc6 6. Qd4 Nf6 7. e5 Nd5 8. c4 Nb4 9. Qc3 c5 10. Be3 Qa5
1963 Kiev Ch – Round 14 – Timoshenko, Anatoly – 1-0 – Zurakhov, Vladlen Y – G54 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nxc6 bxc6 6. Qd4 Nf6 7. e5 Nd5 8. e6 f6 9. exd7+ Bxd7 10. Bc4 e5
1963 Pan American Ch – Round 11 – Lopez Mario D – 0-1 – De Greif, Boris – G48 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nxc6 bxc6 6. Qd4 f6 7. Bc4 e6 8. Nc3 Nh6 9. O-O Nf7 10. Bb3 Bg7
1965 Hungary – Round 1 – Ozsvath, Andras – 1-0 – Pogats, Jozsef Jr. – G90 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nxc6 bxc6 6. Qd4 Nf6 7. Nc3 d6 8. e5 dxe5 9. Qxe5 Bg7 10. Be3 O-O
1966 La Habana olm prel – Round 4 – Olivera, Alfredo – 0-1 – Jansson, Borje – G152 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nxc6 bxc6 6. Qd4 f6 7. c4 Bg7 8. Nc3 Nh6 9. c5 Nf7 10. h4 Rb8

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