A13w — English: Neo-Catalan Accepted, 5.Qa4+ Nbd7 6.Qxc4 a6

1.c4 e6 2.Nf3 d5 3.g3 Nf6 4.Bg2 dxc4 5.Qa4+ Nbd7 6.Qxc4 a6 * ● Trait aux Noirs

Ouverture — Centre semi-ouvert

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Atouts. Les Blancs s'appuient sur une majorité de pions à l'centre (2 contre 1), les cases fortes d4 et f4, la paire de fous et la colonne semi-ouverte c.

Côté adverse. Les fous enfermés en c8 et f8 et le roi resté au centre.

En contrepartie. Le roi n'est pas encore à l'abri et plusieurs pièces dorment encore (le cavalier b1, le fou c1 et les tours a1 et h1).

Plans. O-O (Mettre le roi en sécurité, connecter les tours) ; Nc3 (Développer Nb1) ; d3 (Libérer Bc1) ; h3 (Empêcher ...Bg4) ; Tour sur colonne c.

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Atouts. Les Noirs s'appuient sur une majorité de pions à l'aile_dame (3 contre 2), les cases fortes c5 et d5, la paire de fous et la colonne semi-ouverte d.

Côté adverse. Les fous enfermés en c1 et g2 et le roi resté au centre.

En contrepartie. Le roi n'est pas encore à l'abri et plusieurs pièces dorment encore (les fous c8 et f8 et les tours a8 et h8).

Plans. O-O (Mettre le roi en sécurité, connecter les tours) ; b6+Bb7 (PRIORITÉ: libérer le Bc8 (b6+Bb7, ...Bg4, ...Bf5)) ; ...Be7 (Développer Bf8) ; ...Bg4 (Clouer Nf3) ; ...c6 (Rupture).

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● f2→g3, h2→g3	● f7→e6
Passés	—	—
Majorité	● centre 2v1	● aile_dame 3v2

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● d4 (2v0), ● f4 (2v0)	● c5 (2v1), ● d5 (2v1)
Cases faibles	—	—
Centre	● d4 (2v0)	● d5 (2v1)

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● c	● d

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 0)
Bg2	● Bg2 Enfermé (mob. 2)
Bc8		● Bc8 Non développé (mob. 0)
Bf8		● Bf8 Non développé (mob. 5)
Paire de fous	● Oui	● Oui
Non développées	4 (b1, c1, a1, h1)	4 (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	● d2-d3, ● e2-e3	● …c7-c6, ● …c7-c5, ● …e6-e5

Partie
19. European Teams 2013 – Round 1.15 – Banikas, Hristos – 1-0 – Zagorskis, Darius – G20 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Qxc4 a6 7. Qc2 c5 8. Nc3 Ra7 9. O-O b6 10. d4 Bb7
1939 Bad Oeynhausen ch-GER – Round 4 – Eliskases, Erich – 1-0 – Montoya Eisinger, Maximiliano – G35 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Qxc4 a6 7. Qc2 Be7 8. O-O O-O 9. b3 c5 10. Bb2 Ra7
1947 Buenos Aires ch-ARG – Round 1 – Benko, Francisco – 0-1 – Pilnik Aranda, Karla Constanza – G5 1. c4 e6 2. g3 d5 3. Bg2 Nf6 4. Nf3 dxc4 5. Qa4+ Nbd7 6. Qxc4 a6 7. Qc2 c5 8. b3 Be7 9. Bb2 O-O 10. Nc3 Qc7
1947 Buenos Aires ch-ARG – Round 1 – Iliesco – 1-0 – Alvarez Martin, Pedro – G9 1. c4 Nf6 2. Nf3 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Qxc4 a6 7. Qc2 Bd6 8. Nc3 O-O 9. O-O e5 10. d4 c6
1948 Saltsjobaden tt – Round 1 – Ekenberg, Bengt – 1-0 – Sigurdsen, S. – G21 1. Nf3 d5 2. c4 e6 3. g3 dxc4 4. Qa4+ Nd7 5. Bg2 a6 6. Qxc4 Ngf6 7. O-O Be7 8. d4 c5 9. Rd1 b5 10. Qc2 Bb7
1949 Mar del Plata – Round 3 – Iliesco, Juan – 1-0 – Benko, Francisco – G44 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Qxc4 a6 7. Qc2 Be7 8. Nc3 O-O 9. O-O c5 10. d4 Qa5
1952 Buenos Aires – Round 1 – Garcia Vera, Romeo – 1/2-1/2 – Alonso-Lej De Las Casas, Fernando – G2 1. c4 e6 2. Nf3 Nf6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Qxc4 a6 7. Qc2 c5 8. O-O Be7 9. d4 Qb6 10. dxc5 Qxc5
1952 Hungary Ch – Round 8 – Sandor, Balazs – 0-1 – Szily, Jozsef – G48 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Qxc4 a6 7. Qc2 c5 8. O-O b5 9. d3 Bb7 10. b3 Be7
1953 Candidats Tournament – Round 24 – Taimanov, Mark E – 1-0 – Stahlberg, Gideon – G154 1. c4 e6 2. g3 Nf6 3. Bg2 d5 4. Nf3 dxc4 5. Qa4+ Nbd7 6. Qxc4 a6 7. O-O Bd6 8. d4 O-O 9. Rd1 Qe7 10. Qc2 Rb8
1953 FRG Ch 02nd – Round 8 – Heemsoth, Hermann – 0-1 – Eisinger, Max Jr – G16 1. c4 Nf6 2. Nf3 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Qxc4 a6 7. O-O b5 8. Qc2 Bb7 9. a4 Bd6 10. Na3 O-O
1955 DDR Ch 06th – Round 8 – Eising, Johannes – 1-0 – Schlieder, Rolf – G36 1. c4 Nf6 2. g3 e6 3. Bg2 d5 4. Nf3 dxc4 5. Qa4+ Nbd7 6. Qxc4 a6 7. Qc2 c5 8. O-O Be7 9. a4 O-O 10. a5 Nd5
1955 URS Team Ch fin – Round 5 – Polugaevsky, Lev – 1/2-1/2 – Suetin, Alexey S – G14 1. c4 Nf6 2. g3 e6 3. Bg2 d5 4. Nf3 dxc4 5. Qa4+ Nbd7 6. Qxc4 a6 7. Qc2 c5 8. O-O b5 9. a4 Bb7 10. Nc3 Qb6
1956 Budapest Szikra – Round ? – Szollosi, Laszlo – 1/2-1/2 – Szily, Jozsef – G6 1. c4 e6 2. g3 d5 3. Bg2 Nf6 4. Nf3 dxc4 5. Qa4+ Nbd7 6. Qxc4 a6 7. O-O b5 8. Qc2 Bb7 9. d3 c5 10. a4 Be7
1956 CSR Ch – Round 18 – Kozma, Julius – 1-0 – Sefc, Jan – G165 1. c4 e6 2. g3 Nf6 3. Bg2 d5 4. Nf3 dxc4 5. Qa4+ Nbd7 6. Qxc4 a6 7. Qc2 c5 8. O-O b5 9. a4 Bb7 10. axb5 axb5
1956 Moscow olm fin-A – Round 5 – Panno, Oscar – 1/2-1/2 – Keres, Paul Petrovich – G67 1. c4 Nf6 2. g3 e6 3. Bg2 d5 4. Nf3 dxc4 5. Qa4+ Nbd7 6. Qxc4 a6 7. Qc2 c5 8. a4 b6 9. O-O Bb7 10. Nc3 Be7
1957 WchT U26 04th – Round 7.3 – Forintos, Gyozo V – 0-1 – Tringov, Georgi P – G94 1. c4 Nf6 2. g3 e6 3. Bg2 d5 4. Nf3 dxc4 5. Qc2 Nbd7 6. Qxc4 a6 7. Qc2 c5 8. O-O b6 9. b4 Bb7 10. bxc5 Bxc5
1958 Sofia – Round 5 – Szilagyi, Gyorgy Laszlo – 1-0 – Brzozka, Stefan – G29 1. c4 Nf6 2. g3 e6 3. Bg2 d5 4. Nf3 dxc4 5. Qa4+ Nbd7 6. Qxc4 a6 7. Qc2 c5 8. O-O Qc7 9. d3 Nd5 10. e4 Nb4
1960 BUL-ch14 Sofia BUL – Round 19 – Neikirkh, Oleg – 1/2-1/2 – Radev Iordanov, Nikolay – G72 1. c4 Nf6 2. Nf3 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Qxc4 a6 7. Qc2 Be7 8. O-O O-O 9. d4 c5 10. Rd1 cxd4
1961 Baku ch-URS – Round 6 – Taimanov, Mark E – 1/2-1/2 – Keres, Paul – G66 1. Nf3 d5 2. c4 e6 3. g3 dxc4 4. Qa4+ Nd7 5. Bg2 Nf6 6. Qxc4 a6 7. Qc2 c5 8. O-O b5 9. a4 Bb7 10. axb5 axb5
1961 Oberhausen etc – Round 3 – Haag, Ervin – 1-0 – Montoya Eisinger, Maximiliano – G80 1. c4 Nf6 2. g3 e6 3. Bg2 d5 4. Nf3 dxc4 5. Qa4+ Nbd7 6. Qxc4 a6 7. Qc2 Ra7 8. O-O c5 9. d3 Be7 10. a4 b6
1961 Oberhausen etc – Round 4 – Smyslov, Vladimir – 1/2-1/2 – Florian, T. – G102 1. c4 Nf6 2. g3 e6 3. Bg2 d5 4. Nf3 dxc4 5. Qa4+ Nbd7 6. Qxc4 a6 7. Qc2 c5 8. a4 b6 9. b3 Bb7 10. Bb2 Be7
1964 Tel Aviv olm fin-A – Round 5 – Smyslov, Vladimir – 0-1 – Unzicker, Wolfgang – G96 1. c4 Nf6 2. g3 e6 3. Bg2 d5 4. Nf3 dxc4 5. Qa4+ Nbd7 6. Qxc4 a6 7. Qc2 Rb8 8. O-O Be7 9. Na3 O-O 10. Nc4 c5
1964 Tel Aviv olm fin-A – Round 7 – Eliskases, Erich – 1/2-1/2 – Unzicker, Wolfgang – G140 1. c4 Nf6 2. Nf3 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Qxc4 a6 7. Qc2 Rb8 8. O-O Be7 9. d4 b5 10. Bg5 Bb7
1965 FRG CupT – Round 1.1 – Schmid, Lothar – 1/2-1/2 – Unzicker, Wolfgang – G1 1. c4 Nf6 2. g3 e6 3. Nf3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Qxc4 a6 7. Qc2 Rb8 8. O-O Be7 9. b3 O-O 10. Bb2 c5
1965 Sarajevo – Round 1 – Trifunovic, Petar – 1/2-1/2 – Ciric, Dimitrije – G23 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Qxc4 a6 7. Qc2 Rb8 8. O-O Be7 9. Nc3 b5 10. Nd4 Ne5
1966 Titovo Uzice – Round 1 – Ree, Hans – 1/2-1/2 – Pachman, Ludek – G4 1. c4 Nf6 2. Nf3 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Qxc4 a6 7. Qc2 c5 8. Nc3 Ra7 9. O-O b5 10. d4 Bb7
1967 Winnipeg – Round 8 – Szabo, Laszlo – 1/2-1/2 – Keres, Paul Petrovich – G44 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Qxc4 a6 7. Qc2 c5 8. Nc3 Qc7 9. d4 b5 10. Bf4 Qa7
1968 Hastings6869 – Round 2 – Wright, Daniel – 0-1 – Huebner, Robert – G11 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Qxc4 a6 7. Qc2 Rb8 8. O-O b5 9. b3 Bb7 10. Bb2 Be7
1968 Hoogovens – Round 12 – Ree, Hans – 0-1 – Padevsky, Nikola – G101 1. c4 Nf6 2. Nf3 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Qxc4 a6 7. Qc2 c5 8. O-O Bd6 9. d4 O-O 10. Rd1 Qe7
1969 Buenos Aires – Round 1 – Acosta Garcia, Rafael Isaac – 1-0 – Schweber, Samuel – G15 1. Nf3 Nf6 2. g3 d5 3. c4 e6 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Qxc4 a6 7. Qc2 c5 8. O-O Qc7 9. d4 Bd6 10. dxc5 Nxc5
1969 FRG Ch – Round 3 – Kestler, Hans-Guenther – 1-0 – Freise, Helmut – G4 1. Nf3 Nf6 2. g3 d5 3. c4 e6 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Qxc4 a6 7. Qc2 c5 8. O-O Rb8 9. d4 Bd6 10. dxc5 Bxc5
1969 Hoogovens – Round 15 – Botvinnik, Mikhail – 1/2-1/2 – Olafsson, Fridrik – G123 1. c4 Nf6 2. Nf3 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Qxc4 a6 7. Qc2 c5 8. O-O b6 9. d4 Bb7 10. dxc5 Bxc5
4. Norway Blitz 2016 – Round 3.2 – Grandelius, Nils – 1/2-1/2 – Carlsen, Magnus – G12 1. c4 e6 2. g3 d5 3. Bg2 Nf6 4. Nf3 dxc4 5. Qa4+ Nbd7 6. Qxc4 a6 7. Qc2 c5 8. Nc3 Bd6 9. O-O O-O 10. d4 Qe7
41. Olympiad Open 2014 – Round 4.12 – Dominguez Perez, Leinier – 1/2-1/2 – Sethuraman, S.P. – G246 1. c4 e6 2. g3 d5 3. Bg2 Nf6 4. Nf3 dxc4 5. Qa4+ Nbd7 6. Qxc4 a6 7. Qc2 c5 8. Nc3 Qc7 9. d4 b6 10. Bf4 Bd6
41. Olympiad Open 2014 – Round 4.7 – Meier, Georg – 1-0 – Filippov, Anton – G307 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Qxc4 a6 7. Qc2 c5 8. Nc3 Ra7 9. O-O b6 10. d4 Bb7
7. Sinquefield Cup TB 2019 – Round 3 – Ding, Liren – 1-0 – Carlsen, Magnus – G3 1. c4 Nf6 2. g3 e6 3. Bg2 d5 4. Nf3 dxc4 5. Qa4+ Nbd7 6. Qxc4 a6 7. Qc2 c5 8. Nc3 Qc7 9. d4 cxd4 10. Nxd4 Bc5
83. Tata Steel Masters 2021 – Round 13.2 – Donchenko, Alexander – 0-1 – Esipenko, Andrey – G89 1. c4 Nf6 2. g3 e6 3. Bg2 d5 4. Nf3 dxc4 5. Qa4+ Nbd7 6. Qxc4 a6 7. Qc2 c5 8. Nc3 Qc7 9. O-O b6 10. d4 Bb7
9. London Classic 2017 – Round 1.5 – Adams, Michael – 1/2-1/2 – Karjakin, Sergey – G5 1. c4 Nf6 2. g3 e6 3. Bg2 d5 4. Nf3 dxc4 5. Qa4+ Nbd7 6. Qxc4 a6 7. Qc2 c5 8. Nc3 Qc7 9. d4 b6 10. Bf4 Bd6
Alekhine Memorial 1971 – Round 6 – Korchnoi, Viktor – 1/2-1/2 – Olafsson, Fridrik – G27 1. c4 e6 2. g3 d5 3. Bg2 Nf6 4. Nf3 dxc4 5. Qa4+ Nbd7 6. Qxc4 a6 7. Qc2 c5 8. Nc3 Qc7 9. O-O b6 10. d4 Bb7
FIDE Candidates 2020 2021 – Round 10.4 – Nepomniachtchi, Ian – 1-0 – Alekseenko, Kirill – G11 1. c4 Nf6 2. g3 e6 3. Bg2 d5 4. Nf3 dxc4 5. Qa4+ Nbd7 6. Qxc4 a6 7. Qc2 c5 8. Nc3 Be7 9. O-O O-O 10. d4 cxd4
FIDE Candidates 2022 – Round 9.4 – Ding, Liren – 1-0 – Duda, Jacob – G36 1. c4 Nf6 2. g3 e6 3. Bg2 d5 4. Nf3 dxc4 5. Qa4+ Nbd7 6. Qxc4 a6 7. Qc2 c5 8. Nc3 Qc7 9. O-O b6 10. d4 Bb7
FIDE World Cup 2015 – Round 1.2 – Zhou, Jianchao – 1/2-1/2 – Andreikin, Dmitry – G125 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Qxc4 a6 7. Qb3 Rb8 8. O-O b5 9. d4 Bb7 10. Bf4 Bd6
FIDE World Rapid 2014 – Round 10.18 – Sargissian, Gabriel – 1/2-1/2 – Wojtaszek, Radoslaw – G216 1. c4 Nf6 2. Nf3 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Qxc4 a6 7. Qc2 c5 8. Nc3 Qc7 9. d4 cxd4 10. Nxd4 Bc5
GCT Blitz Paris 2021 – Round 5.3 – Svidler, Peter – 1/2-1/2 – Nepomniachtchi, Ian – G22 1. c4 e6 2. g3 Nf6 3. Bg2 d5 4. Nf3 dxc4 5. Qa4+ Nbd7 6. Qxc4 a6 7. Qc2 c5 8. Nc3 Qc7 9. d4 b6 10. Bf4 Bd6
Lindores Abbey Tal Memorial 2021 – Round 1.52 – Niemann, Hans Moke – 1-0 – Socko, Monika – G48 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Qxc4 a6 7. Qc2 c5 8. Nc3 Be7 9. O-O O-O 10. d4 Ra7
Lindores Abbey Tal Memorial 2021 – Round 12.18 – Howell, David W L – 0-1 – Predke, Alexandr – G517 1. c4 e6 2. g3 d5 3. Bg2 Nf6 4. Nf3 dxc4 5. Qa4+ Nbd7 6. Qxc4 a6 7. Qb3 Rb8 8. O-O b5 9. d3 Bb7 10. Bg5 Be7
Moskou ch-URS 1973 – Round 1 – Polugaevsky, Lev – 1/2-1/2 – Spassky, Boris V. – G7 1. c4 e6 2. g3 d5 3. Bg2 Nf6 4. Nf3 dxc4 5. Qa4+ Nbd7 6. Qxc4 a6 7. Qc2 c5 8. Nc3 Qc7 9. d4 b5 10. Bf4 Bd6
Riga FIDE Grand Prix 2019 – Round 1.4 – Giri, Anish – 1-0 – Karjakin, Sergey – G24 1. c4 Nf6 2. Nf3 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Qxc4 a6 7. Qc2 c5 8. Nc3 Qc7 9. O-O b6 10. d4 Bb7
Saint Louis Blitz 2024 - Round 13 - Nepomniachtchi Ian - 0-1 - Abdusattorov Nodirbek - G62 1. c4 e6 2. g3 d5 3. Bg2 Nf6 4. Nf3 dxc4 5. Qa4+ Nbd7 6. Qxc4 a6 7. Qc2 c5 8. Nc3 Qc7 9. d4 b5 10. O-O Bb7
Saint Louis Blitz 2024 - Round 15 - Firouzja Alireza - 0-1 - Abdusattorov Nodirbek - G73 1. c4 e6 2. g3 d5 3. Bg2 Nf6 4. Nf3 dxc4 5. Qa4+ Nbd7 6. Qxc4 a6 7. Qc2 c5 8. Nc3 Qc7 9. d4 b5 10. Bf4 Qa7
Saint Louis Rapid 2019 – Round 7.4 – Ding, Liren – 1/2-1/2 – Karjakin, Sergey – G34 1. c4 Nf6 2. Nf3 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Qxc4 a6 7. Qb3 Rb8 8. d4 b5 9. Ne5 Nxe5 10. dxe5 Nd7
SportAccord Blitz 2014 – Round 23.7 – Wang, Yue(SH) – 1-0 – Wojtaszek, Radoslaw – G182 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Qxc4 a6 7. Qb3 b5 8. Ne5 Nxe5 9. Bxa8 c6 10. f4 Bd7
Vugar Gashimov Mem 2014 – Round 7.1 – Radjabov, Teimour – 1/2-1/2 – Mamedyarov, Shakhriyar – G19 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Qxc4 a6 7. Qc2 c5 8. Nc3 Qc7 9. O-O b6 10. d4 Bb7
Vugar Gashimov Mem 2019 – Round 7.2 – Navara, David – 1/2-1/2 – Karjakin, Sergey – G32 1. c4 Nf6 2. Nf3 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Qxc4 a6 7. Qb3 Rb8 8. d4 b5 9. Ne5 Nxe5 10. dxe5 Nd7
Wijk aan Zee NED, Tata Steel GpA 2015 – Round 4.7 – Aronian, Levon – 1/2-1/2 – Wojtaszek, Radoslaw – G8 1. c4 Nf6 2. g3 e6 3. Bg2 d5 4. Nf3 dxc4 5. Qa4+ Nbd7 6. Qxc4 a6 7. Qc2 c5 8. Nc3 Qc7 9. O-O b6 10. d4 Bb7
World Blitz 2018 – Round 11.10 – Matlakov, Maxim – 0-1 – Duda, Jan-Krzysztof – G631 1. c4 e6 2. g3 d5 3. Bg2 Nf6 4. Nf3 dxc4 5. Qa4+ Nbd7 6. Qxc4 a6 7. Qc2 c5 8. O-O b6 9. d4 Bb7 10. Nc3 cxd4
World Blitz 2021 – Round 20.3 – Artemiev, Vladislav – 1/2-1/2 – Vachier-Lagrave, Maxime – G1167 1. Nf3 d5 2. g3 Nd7 3. c4 dxc4 4. Qa4 Nf6 5. Bg2 e6 6. Qxc4 a6 7. Qc2 c5 8. Nc3 Be7 9. O-O O-O 10. d4 cxd4
World Blitz 2022 – Round 7.61 – Yakubboev, Nodirbek – 1-0 – Averin, Nikolay – G383 1. c4 e6 2. Nf3 d5 3. g3 Nf6 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Qxc4 a6 7. a4 Rb8 8. Nc3 b6 9. O-O Bb7 10. d4 c5
World Rapid 2021 – Round 10.38 – Howell, David W L – 1-0 – Kosakowski, Jakub – G591 1. c4 e6 2. g3 Nf6 3. Bg2 d5 4. Nf3 dxc4 5. Qa4+ Nbd7 6. Qxc4 a6 7. Qb3 c5 8. a4 Be7 9. a5 O-O 10. d3 Nd5
World Rapid 2021 – Round 4.63 – Chigaev, Maksim – 1-0 – Tang, Andrew – G249 1. c4 e6 2. g3 d5 3. Bg2 Nf6 4. Nf3 dxc4 5. Qa4+ Nbd7 6. Qxc4 a6 7. Qc2 c5 8. a4 b6 9. O-O Bb7 10. Nc3 Be7
Zurich Chess Challenge 2014 – Round 1.2 – Aronian, Levon – 1-0 – Anand, Viswanathan – G2 1. c4 e6 2. g3 d5 3. Bg2 Nf6 4. Nf3 dxc4 5. Qa4+ Nbd7 6. Qxc4 a6 7. Qb3 Rb8 8. O-O b5 9. a4 Bb7 10. axb5 axb5

A13w — Neo-Catalan Accepted

1.c4 e6 2.Nf3 d5 3.g3 Nf6 4.Bg2 dxc4 5.Qa4+ Nbd7 6.Qxc4 a6

Eval: [+0.25]

Les coups candidats

7.Qc2 — 59.7% (863 parties)

Ambassadeurs : Unzicker, Wolfgang (8x), Kulon, Klaudia (6x), Mikhalevski, Victor (6x), Pultinevicius, Paulius (5x), Snape, Ian L (4x), Meijers, Viesturs (4x), Fressinet, Laurent (4x), Tazbir, Marcin (4x)

7.Qb3 — 18.0% (260 parties)

Ambassadeurs : Stangl, Markus (5x), Romanov, Egor (5x), Sorokin, Maxim (4x), Sveshnikov, Evgeny (4x), Naiditsch, Arkadij (4x), Wang, Yue (4x), Smagin, Sergey (3x), Gruen, Gerd-Peter (3x)

7.O-O — 12.3% (178 parties)

Ambassadeurs : Sunye Neto, Jaime (3x), Andrade, Leonardo (2x), Yagupov, Igor (2x), Franciskovic, Borka (2x), Schwierskott, Marc, Dr. (2x), Schwab, Lukas (2x), Ekenberg, Bengt (1x), Sigurdsen, S. (1x)

7.d4 — 5.1% (74 parties) →

Ambassadeurs : Raupp, Thomas (2x), Pfleger, Helmut, Dr. (1x), Johansen, Dan T (1x), Antunes Dominguez, Amaru (1x), Khasin, Alexander (1x), Zaichik, Gennadi (1x), Nutu-Gajic, Daniela (1x), Medic, Mirjana (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	7.Qc2	7.Qb3	7.O-O	7.d4
<1800	7	43%	14%	29%	—
1800-2200	218	49%	9%	25%	8%
2200-2600	1054	61%	19%	10%	5%
2600+	92	65%	32%	1%	—

Évolution par décennie (% des parties)

Décennie	N parties	7.Qc2	7.Qb3	7.O-O	7.d4
1930s	1	100%	—	—	—
1940s	7	86%	—	14%	—
1950s	12	75%	—	25%	—
1960s	18	94%	—	—	—
1970s	31	81%	—	10%	3%
1980s	58	47%	26%	10%	10%
1990s	178	40%	26%	19%	7%
2000s	179	46%	17%	20%	7%
2010s	576	58%	21%	11%	6%
2020s	386	75%	12%	8%	2%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
7.Qc2	58%	75%	▲ +16.7%
7.Qb3	21%	12%	▼ -8.4%
7.O-O	11%	8%	▼ -3.5%
7.d4	6%	2%	▼ -3.7%

Joueurs célèbres

Champions du monde dans cette position

Anand, Viswanathan — 3 parties
Ding, Liren — 3 parties
Botvinnik, Mikhail — 2 parties
Smyslov, Vladimir — 2 parties
Ju, Wenjun — 2 parties
Carlsen, Magnus — 2 parties
Hou, Yifan — 1 partie

Parties historiques

7.Qc2 — 59.7% (863 parties)

1939 — Eliskases, Erich vs Montoya Eisinger, Maximiliano — 1-0 — Bad Oeynhausen ch-GER
1941 — Kruit, Erik vs Roose, Anthony Hendrik — 1-0 — Groningen NED
1946 — Subaric, Mladen vs Markovic, Mihajlo — 0-1 — Zagreb CRO
1947 — Benko, Francisco vs Pilnik, Herman — 0-1 — Buenos Aires ARG
1947 — Benko, Francisco vs Pilnik Aranda, Karla Constanza — 0-1 — Buenos Aires ch-ARG

7.Qb3 — 18.0% (260 parties)

1982 — Petrosian, Arshak B vs Bagirov, Vladimir — 1/2-1/2 — Telavi
1984 — Adamski, Jan vs Donchev, Dimitar I. — 1/2-1/2 — Vrnjacka Banja SRB
1985 — Pountzas, Hrisanthos vs Vlahos, Kiriakos — 0-1 — Greece
1987 — Grunberg, Sergiu-Henric vs Karolyi, Tibor — 1/2-1/2 — Maribor
1987 — Tukmakov, Vladimir B vs Andersson, Ulf — 1/2-1/2 — Reggio Emilia ITA

7.O-O — 12.3% (178 parties)

1948 — Ekenberg, Bengt vs Sigurdsen, S. — 1-0 — Saltsjobaden SWE
1953 — Taimanov, Mark vs Stahlberg, Gideon — 1-0 — Zurich SUI
1953 — Heemsoth, Hermann vs Eisinger, Max Jr — 0-1 — Berlin West
1956 — Szollosi, Laszlo vs Szily, Jozsef — 1/2-1/2 — Budapest Szikra
1977 — Haygarth, Michael J vs Hillyard, Graham D — 1/2-1/2 — Brighton ch-BCF

7.d4 — 5.1% (74 parties)

1977 — Blocker, Calvin vs Browne, Walter Shawn — 0-1 — Parmeson Class,CA
1982 — Resende, Antonio Carlos vs Ticianeli Auriberto — 1-0 — Brasilia BRA
1985 — Khasin, Alexander vs Zaichik, Gennadi — 0-1 — Kostroma
1986 — Johansen, Dan T vs Antunes Dominguez, Amaru — 0-1 — Dubai UAE
1986 — Nutu-Gajic, Daniela vs Medic, Mirjana — 1-0 — Jajce

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