E04p — Catalan: Open, 5.Nf3 c5 6.O-O Nc6 7.Qa4 Bd7

1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 dxc4 5.Nf3 c5 6.O-O Nc6 7.Qa4 Bd7 * ○ Trait aux Blancs

Ouverture — Centre semi-ouvert

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

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Atouts. Les Blancs s'appuient sur une majorité de pions à l'centre (2 contre 1), les cases fortes f4, e5 et g5, la paire de fous et la colonne semi-ouverte c.

Côté adverse. Les fous enfermés en d7 et f8, le roi resté au centre et une pièce en prise (le pion en c4).

En contrepartie. Plusieurs pièces dorment encore (le cavalier b1, le fou c1 et la tour a1).

Plans. Nc3 (Développer Nb1) ; Bg5 (Clouer Nf6) ; Tour sur colonne c.

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

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Atouts. Les Noirs s'appuient sur une majorité de pions à l'aile_dame (4 contre 2), les cases fortes b4 et d5, un avant-poste en d5, la paire de fous et la colonne semi-ouverte d.

Côté adverse. Les fous enfermés en c1 et g2.

En contrepartie. Le roi n'est pas encore à l'abri et plusieurs pièces dorment encore (le fou f8 et les tours a8 et h8).

Plans. O-O (Mettre le roi en sécurité, connecter les tours) ; ...Be7 (Développer Bf8) ; ...Bg4 (Clouer Nf3) ; ...e5 (Rupture) ; Tour sur colonne d.

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	● c4, ● c5
Pions isolés	—	—
Arriérés	—	—
Chaînes	● f2→g3, h2→g3	● f7→e6
Passés	—	—
Majorité	● centre 2v1	● aile_dame 4v2

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● f4 (2v0), ● e5 (2v1), ● g5 (2v0)	● b4 (2v1), ● d5 (2v0)
Cases faibles	● d4	—
Centre	● e5 (2v1)	● d4 (2v1), ● d5 (2v0), ● e4 (1v0)

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● c	● d

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Bg2	● Bg2 Enfermé (mob. 2)
Bd7		● Bd7 Enfermé (mob. 1)
Bf8		● Bf8 Non développé (mob. 2)
Paire de fous	● Oui	● Oui
Non développées	3 (b1, c1, a1)	3 (f8, 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	semi-ouvert
Ruptures	● d4-d5, ● e2-e3	● …e6-e5

Partie
1932 Leningrad – Round 1 – Alatortsev, Vladimir N. – 1-0 – Lisitsin, Georgy – G14 1. d4 Nf6 2. Nf3 e6 3. g3 d5 4. Bg2 c5 5. O-O Nc6 6. c4 dxc4 7. Qa4 Bd7 8. dxc5 Bxc5 9. Qxc4 Be7 10. Nc3 O-O
1938 Leningrad – Round 1 – Alatortsev, Vladimir N. – 1-0 – Lisitsin, Georgy – G14 1. d4 Nf6 2. Nf3 e6 3. g3 c5 4. Bg2 Nc6 5. O-O d5 6. c4 dxc4 7. Qa4 Bd7 8. dxc5 Bxc5 9. Qxc4 Be7 10. Nc3 O-O
1939 American Continental – Round ? – Pelikan, Jorge – 0-1 – Guimard, Carlos E – G16 1. Nf3 Nf6 2. g3 d5 3. Bg2 e6 4. O-O c5 5. d4 Nc6 6. c4 dxc4 7. Qa4 Bd7 8. dxc5 Bxc5 9. Qxc4 Be7 10. Nc3 O-O
1939 Buenos Aires ol f-A – Round 2 – Pelikán, Jiří – 0-1 – Guimard, Carlos E – G40 1. Nf3 Nf6 2. g3 d5 3. Bg2 e6 4. O-O c5 5. d4 Nc6 6. c4 dxc4 7. Qa4 Bd7 8. dxc5 Bxc5 9. Qxc4 Be7 10. Nc3 O-O
1946 Gyor – Round 8 – Barcza, Gedeon – 1-0 – Gergely, Andras – G18 1. Nf3 d5 2. g3 c5 3. Bg2 Nc6 4. d4 e6 5. O-O Nf6 6. c4 dxc4 7. Qa4 Bd7 8. dxc5 Bxc5 9. Qxc4 Be7 10. Nc3 Rc8
1947 Berlin GER – Round 10 – Elstner, Rudolf – 0-1 – Kinzel, Alfred – G7 1. d4 d5 2. Nf3 Nf6 3. g3 e6 4. Bg2 c5 5. O-O Nc6 6. c4 dxc4 7. Qa4 Bd7 8. dxc5 Bxc5 9. Qxc4 Qe7 10. Nc3 h6
1947 JUG Ch – Round 5 – Kostic, Boris – 1/2-1/2 – Tomovic, Vasilje – G13 1. Nf3 d5 2. g3 Nf6 3. Bg2 c5 4. d4 e6 5. O-O Nc6 6. c4 dxc4 7. Qa4 Bd7 8. dxc5 Na5 9. Qc2 Bxc5 10. Ne5 Rc8
1947 Nt Essen GER – Round 3 – Lange, Wilfried – 1-0 – Heinicke, Herbert – G9 1. Nf3 d5 2. g3 c5 3. Bg2 Nc6 4. d4 Nf6 5. O-O e6 6. c4 dxc4 7. Qa4 Bd7 8. dxc5 Bxc5 9. Qxc4 Qb6 10. Nc3 Na5
1948 Bad Nauheim – Round 1 – Rautenberg, Wilhelm – 0-1 – Unzicker, Wolfgang – G28 1. Nf3 Nf6 2. g3 d5 3. Bg2 c5 4. O-O Nc6 5. d4 e6 6. c4 dxc4 7. Qa4 Bd7 8. dxc5 Na5 9. Qa3 Rc8 10. b4 cxb3
1948 GER Ch – Round 1 – Rautenberg, Wilhelm – 0-1 – Unzicker, Ferdinand, Dr. – G4 1. Nf3 Nf6 2. g3 d5 3. Bg2 c5 4. O-O Nc6 5. d4 e6 6. c4 dxc4 7. Qa4 Bd7 8. dxc5 Na5 9. Qc2 Bxc5 10. Ne5 Qb6
1948 Karlovy Vary – Round 2 – Barcza, Gedeon – 1-0 – Richter, Edgar – G35 1. Nf3 d5 2. g3 Nf6 3. Bg2 c5 4. O-O Nc6 5. d4 e6 6. c4 dxc4 7. Qa4 Bd7 8. dxc5 Na5 9. Qc2 Bxc5 10. Ne5 Rc8
1949 Copenhagen – Round ? – Pedersen, Eigil – 1-0 – Haahr, Thorkild – G13 1. d4 Nf6 2. g3 d5 3. Bg2 c5 4. Nf3 Nc6 5. O-O e6 6. c4 dxc4 7. Qa4 Bd7 8. dxc5 Bxc5 9. Qxc4 Qb6 10. Nc3 Qb4
1951 GER Ch 14th – Round 8 – Elstner, Rudolf – 1-0 – Niephaus, Walter – G22 1. d4 Nf6 2. g3 e6 3. Bg2 d5 4. Nf3 c5 5. O-O Nc6 6. c4 dxc4 7. Qa4 Bd7 8. dxc5 Na5 9. Qc2 Bxc5 10. Ne5 Qb6
1951 Mar del Plata zt – Round 16 – Wexler, Bernardo – 1/2-1/2 – Alvarez Martin, Pedro – G155 1. d4 d5 2. Nf3 Nf6 3. g3 e6 4. Bg2 c5 5. O-O Nc6 6. c4 dxc4 7. Qa4 Bd7 8. dxc5 Na5 9. Qc2 Bxc5 10. Ne5 h6
1951 Mar del Plata zt – Round 22 – Bolbochan, J. – 1-0 – Flores Alvarez, Rodrigo – G221 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Nf3 dxc4 5. Bg2 c5 6. O-O Nc6 7. Qa4 Bd7 8. dxc5 Bxc5 9. Qxc4 Be7 10. Nc3 O-O
1951 Stevenson Memorial 3rd – Round 3 – Tartakower, Savielly – 0-1 – Thomas Andrew – G3 1. Nf3 d5 2. g3 Nf6 3. Bg2 e6 4. O-O c5 5. d4 Nc6 6. c4 dxc4 7. Qa4 Bd7 8. dxc5 Bxc5 9. Qxc4 Be7 10. Nc3 Rc8
1951 YUG Ch 7th – Round 4 – Longer Milan – 1/2-1/2 – Trifunovic, Petar – G29 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Nf3 c5 5. Bg2 Nc6 6. O-O dxc4 7. Qa4 Bd7 8. dxc5 Bxc5 9. Qxc4 Qb6 10. Nc3 Qb4
1952 Tatranska ch CZE – Round 10 – Zita, Frantisek – 1-0 – Fichtl, Jiri – G27 1. g3 d5 2. Nf3 c5 3. Bg2 Nc6 4. d4 e6 5. O-O Nf6 6. c4 dxc4 7. Qa4 Bd7 8. dxc5 Na5 9. Qc2 Bxc5 10. Ne5 Rc8
1954 URS Ch, semi final – Round 1 – Korchnoi, Viktor – 1-0 – Antoshin, Vladimir S – G26 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Nf3 c5 6. O-O Nc6 7. Qa4 Bd7 8. dxc5 Bxc5 9. Qxc4 Be7 10. Nc3 Rc8
1955 Mar del Plata – Round 14 – Pachman, Ludek – 1/2-1/2 – Letelier Martner, Rene – G96 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 dxc4 5. Bg2 c5 6. O-O Nc6 7. Qa4 Bd7 8. dxc5 Rc8 9. Qxc4 Qa5 10. Nc3 Qxc5
1957 GBR Ch 44th – Round 10.4 – Cafferty, Bernard – 1/2-1/2 – Haygarth, Michael J – G44 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Nf3 c5 6. O-O Nc6 7. Qa4 Bd7 8. dxc5 Qa5 9. Qxc4 Qxc5 10. Na3 Be7
1959 Budapest-Leningrad m – Round 3.4 – Bilek, Istvan – 0-1 – Tolush, Alexander V – G10 1. Nf3 c5 2. g3 Nc6 3. Bg2 d5 4. d4 e6 5. O-O Nf6 6. c4 dxc4 7. Qa4 Bd7 8. dxc5 Na5 9. Qa3 b6 10. Ne5 Bxc5
1960 Leipzig olm fin-A – Round 2 – Uhlmann, Wolfgang – 1/2-1/2 – Unzicker, Wolfgang – G29 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 c5 5. Nf3 Nc6 6. O-O dxc4 7. Qa4 Bd7 8. dxc5 Bxc5 9. Qxc4 Be7 10. Nc3 O-O
1962 CSR Ch – Round 17 – Kozma, Julius – 1-0 – Augustin, Josef – G148 1. Nf3 Nf6 2. g3 d5 3. Bg2 c5 4. O-O Nc6 5. d4 e6 6. c4 dxc4 7. Qa4 Bd7 8. dxc5 Bxc5 9. Qxc4 Be7 10. Nc3 Rc8
1962 Reggio Emilia ITA – Round 1 – Filip, Miroslav – 1-0 – Paoli, Enrico – G3 1. g3 d5 2. Bg2 Nf6 3. Nf3 c5 4. O-O Nc6 5. d4 e6 6. c4 dxc4 7. Qa4 Bd7 8. dxc5 Bxc5 9. Qxc4 Be7 10. Nc3 O-O
1965 Copenhagen – Round 5 – Barcza, Gedeon – 1-0 – Nielsen, Jorgen Lovgren – G56 1. Nf3 d5 2. g3 c5 3. Bg2 Nf6 4. O-O Nc6 5. d4 e6 6. c4 dxc4 7. Qa4 Bd7 8. dxc5 Bxc5 9. Qxc4 Be7 10. Nc3 O-O
1966 Havana CUB – Round 7 – Garcia Rodriguez, Raimundo – 1-0 – Reilly, Brian Patrick – G49 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 dxc4 5. Bg2 c5 6. O-O Nc6 7. Qa4 Bd7 8. dxc5 Bxc5 9. Qxc4 Qb6 10. Nc3 Na5
1966 Hungary – Round 1 – Florian, Tibor – 1-0 – Szily, Jozsef – G20 1. d4 e6 2. g3 c5 3. Nf3 Nc6 4. Bg2 Nf6 5. O-O d5 6. c4 dxc4 7. Qa4 Bd7 8. dxc5 Bxc5 9. Qxc4 Qe7 10. Bg5 Rc8
1966 La Habana olm fin-A – Round 6 – Petrosian, Tigran V – 1-0 – Pomar Salamanca, Arturo – G117 1. g3 d5 2. Bg2 c5 3. Nf3 Nc6 4. d4 e6 5. O-O Nf6 6. c4 dxc4 7. Qa4 Bd7 8. dxc5 Bxc5 9. Qxc4 Qb6 10. Nc3 Qb4
1968 Lublin PKWN 4th – Round 10 – Filep, Tibor – 0-1 – Kovacs, Laszlo M – G34 1. Nf3 d5 2. g3 c5 3. Bg2 Nc6 4. d4 Nf6 5. O-O e6 6. c4 dxc4 7. Qa4 Bd7 8. dxc5 Na5 9. Qa3 Rc8 10. Be3 Nd5
1968 Manila – Round 3 – Berger, Bela – 1-0 – Naranja, Renato – G6 1. Nf3 d5 2. g3 Nf6 3. Bg2 c5 4. O-O Nc6 5. d4 e6 6. c4 dxc4 7. Qa4 Bd7 8. dxc5 Bxc5 9. Qxc4 Qe7 10. Nc3 Rc8
1972 Skopje ol (Men) fin-A – Round 1 – Schmidt, Waldemar – 1/2-1/2 – Pomar Salamanca, Arturo – G392 1. Nf3 d5 2. g3 c5 3. Bg2 Nf6 4. O-O Nc6 5. d4 e6 6. c4 dxc4 7. Qa4 Bd7 8. dxc5 Bxc5 9. Qxc4 Qe7 10. Nc3 Bb6
34. ECC Open 2018 – Round 7.3 – Mamedyarov, Shakhriyar – 1/2-1/2 – Wojtaszek, Radoslaw – G214 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 dxc4 5. Bg2 c5 6. O-O Nc6 7. Qa4 Bd7 8. dxc5 Bxc5 9. Qxc4 Be7 10. Rd1 O-O
43. Olympiad 2018 – Round 6.2 – Eljanov, Pavel – 1/2-1/2 – Wojtaszek, Radoslaw – G383 1. Nf3 d5 2. g3 c5 3. Bg2 Nf6 4. O-O Nc6 5. d4 e6 6. c4 dxc4 7. Qa4 Bd7 8. dxc5 Bxc5 9. Qxc4 Be7 10. Nc3 O-O
43. Olympiad 2018 – Round 8.5 – Gelfand, Boris – 1/2-1/2 – Adams, Michael – G539 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Nf3 c5 6. O-O Nc6 7. Qa4 Bd7 8. dxc5 Bxc5 9. Qxc4 Be7 10. Nc3 O-O
FIDE World Cup 2019 – Round 1.1 – Gelfand, Boris – 1/2-1/2 – Lu, Shanglei – G21 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 dxc4 5. Bg2 c5 6. O-O Nc6 7. Qa4 Bd7 8. dxc5 Bxc5 9. Qxc4 Be7 10. Nc3 O-O
Norway Chess 2024 - Round 1 - Praggnanandhaa R - 1/2-1/2 - Firouzja, Alireza - G2 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 dxc4 5. Bg2 c5 6. O-O Nc6 7. Qa4 Bd7 8. dxc5 Bxc5 9. Qxc4 Bb6 10. Nc3 Rc8
Tata Steel Chess 2025 – Round 1 – Gukesh D – 1-0 – Giri Anish – G4 1. Nf3 Nf6 2. g3 d5 3. Bg2 c5 4. O-O Nc6 5. d4 e6 6. c4 dxc4 7. Qa4 Bd7 8. dxc5 Bxc5 9. Qxc4 Be7 10. Nc3 O-O
World Rapid 2019 – Round 5.14 – Sargissian, Gabriel – 1/2-1/2 – Fridman, Daniel – G299 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 dxc4 5. Bg2 c5 6. O-O Nc6 7. Qa4 Bd7 8. dxc5 Na5 9. Qc2 Bxc5 10. Ne5 O-O

E04p — Open

1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 dxc4 5.Nf3 c5 6.O-O Nc6 7.Qa4 Bd7

Eval: [+0.24]

Les coups candidats

8.Qxc4 — 81.9% (2248 parties) →

Ambassadeurs : Radulov, Ivan (12x), Inkiov, Ventzislav (10x), Stukalov, Mikhail Vasilievich (9x), Sokolov, Andrei (7x), Glukhovtsev, Sergey Olegovich (6x), Salonen, Jukka (6x), Gulko, Boris (5x), Unzicker, Wolfgang (5x)

8.dxc5 — 18.1% (497 parties)

Ambassadeurs : Barcza, Gedeon (5x), Vantika Agrawal (5x), Gaboyan, Susanna (4x), Benko, Pal (3x), Rashkovsky, Nukhim N (3x), Nemeth, Antal (3x), Maki, Veijo (3x), Vastrukhin, Oleg (3x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	8.Qxc4	8.dxc5
<1800	43	86%	14%
1800-2200	872	86%	14%
2200-2600	1357	81%	19%
2600+	111	85%	15%

Évolution par décennie (% des parties)

Décennie	N parties	8.Qxc4	8.dxc5
1920s	1	100%	—
1930s	5	20%	80%
1940s	22	41%	59%
1950s	35	49%	51%
1960s	34	65%	35%
1970s	50	72%	28%
1980s	215	69%	31%
1990s	298	78%	22%
2000s	509	81%	19%
2010s	1090	88%	12%
2020s	486	84%	16%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
8.Qxc4	88%	84%	▼ -4.8%
8.dxc5	12%	16%	▲ +4.8%

Joueurs célèbres

Champions du monde dans cette position

Ju, Wenjun — 4 parties
Karpov, Aleksandr — 2 parties
Anand, Viswanathan — 2 parties
Ding, Liren — 2 parties
Kramnik, Vladimir — 1 partie
Carlsen, Magnus — 1 partie
Gukesh D — 1 partie

Parties historiques

8.Qxc4 — 81.9% (2248 parties)

1928 — Reti, Richard vs Leonhardt, Paul — 1/2-1/2 — Berlin GER
1939 — Reinfeld, Fred vs Mccormick Sanchez, Elliot Gael — 1/2-1/2 — Ventnor City
1940 — Shainswit, George vs Littman, G. — 1/2-1/2 — New York, NY USA
1940 — Grechkin, Dmitry M vs Rauzer, Vsevolod — 1/2-1/2 — Kiev UKR
1944 — Pelikan, Jan vs Guimard, Carlos E — 1/2-1/2 — Mar del Plata ARG

8.dxc5 — 18.1% (497 parties)

1932 — Alatortsev, Vladimir N. vs Lisitsin, Georgy — 1-0 — Leningrad RUS
1938 — Alatortsev, Vladimir N. vs Lisitsin, Georgy — 1-0 — Leningrad RUS
1939 — Pelikan, Jorge vs Guimard, Carlos E — 0-1 — Buenos Aires ARG
1939 — Pelikán, Jiří vs Guimard, Carlos E — 0-1 — Buenos Aires ARG
1942 — Barcza, Gedeon vs Bogoljubow, Efim — 1-0 — Munich Munich GER

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