Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● f2→e3, e3→d4	● e6→d5, f7→e6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● f4 (2v0), ● b5 (2v0)	● e4 (2v1)
Cases faibles	—	—
Centre	● d4 (3v1), ● e5 (1v0)	● d5 (3v2), ● e4 (2v1)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 1)
Bf1	● Bf1 Non développé (mob. 0)
Bb4		● Bb4 Ok (mob. 3)
Bc8		● Bc8 Non développé (mob. 1)
Paire de fous	● Oui	● Oui
Clouages	● knight c3	—
Non développées	4 (● c1, ● f1, ● 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	● e3-e4	● …e6-e5

E42b — Nimzo-Indian: 4.e3 c5 5.Ne2 d5

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 c5 5.Ne2 d5 * ○ Trait aux Blancs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plans. a3 (Préparer expansion aile dame — 92 % des parties) ; cxd5 (Capture en d5, Occuper le centre — 6 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plans. ...Bxc3+ (Fou actif (mobilité 6) — 62 % des parties) ; ...cxd4 (Capture en d4, Occuper le centre — 23 % des parties) ; ...Ba5 (Clouer c3 — 8 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Partie
? 2000 – Round ? – Avrukh, Boris – 1-0 – Landenbergue, Claude – G38 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 d5 6. a3 Bxc3+ 7. Nxc3 cxd4 8. exd4 Nc6 9. Be3 O-O 10. c5 e5
10. Sinquefield Cup 2023 – Round 7.1 – Caruana, Fabiano – 1-0 – So, Wesley – G25 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 d5 6. a3 Ba5 7. dxc5 dxc4 8. Bd2 Nbd7 9. Ng3 b6 10. Qf3 Rb8
11th Sinquefield Cup 2024 - Round 7 - Abdusattorov, Nodirbek - 1-0 - So, Wesley - G32 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 d5 6. a3 Ba5 7. dxc5 dxc4 8. Bd2 O-O 9. Ng3 b6 10. Bxc4 bxc5
1946 Pittsburgh Open – Round 1 – Seidman, Herbert – 1-0 – Strang – G23 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 d5 5. Ne2 c5 6. a3 Bxc3+ 7. Nxc3 cxd4 8. Qxd4 Nc6 9. Qc5 Qe7 10. Qxe7+ Nxe7
1947 GBR Ch 34th – Round 10 – Wood, Gabriel Jacquin – 1/2-1/2 – Golombek, Harry – G43 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 d5 5. Ne2 c5 6. a3 Bxc3+ 7. Nxc3 cxd4 8. exd4 dxc4 9. Bxc4 Nc6 10. Be3 O-O
1948 US Open Baltimore, MD USA – Round 10 – Kramer, George – 1/2-1/2 – Ulvestad, Olaf – G28 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 d5 6. cxd5 Nxd5 7. a3 cxd4 8. axb4 dxc3 9. bxc3 Qc7 10. Qb3 O-O
1949 Mar del Plata – Round 16 – Blanco Cruz, Wara – 1/2-1/2 – Luckis, Marcos – G135 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 d5 6. dxc5 Nc6 7. a3 Bxc5 8. b4 Be7 9. cxd5 exd5 10. Nd4 O-O
1950 Interzonal – Round 14 – O'Kelly de Galway, Alberic – 1/2-1/2 – Matanovic, Aleksandar – G25 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 d5 6. cxd5 exd5 7. a3 cxd4 8. Nxd4 Bxc3+ 9. bxc3 O-O 10. Bd3 Nbd7
1951 USA-op52 – Round 6 – Evans, Larry M – 1-0 – Smith, Kenneth – G12 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 d5 6. a3 Bxc3+ 7. Nxc3 cxd4 8. exd4 dxc4 9. Bxc4 Nc6 10. Be3 O-O
1951 YUG Ch 6th – Round 1 – Andric, Dragoslav – 1/2-1/2 – Matanovic, Aleksandar – G2 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 d5 6. a3 cxd4 7. exd4 Be7 8. c5 O-O 9. b4 Re8 10. Ng3 Ne4
1951 Zonal Bad Pyrmont GER – Round 14 – Matanovic, Aleksandar – 0-1 – Golombek, Harry – G23 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 d5 6. a3 cxd4 7. exd4 Be7 8. c5 b6 9. b4 a5 10. Bf4 O-O
1952 DDR Ch 03rd – Round 9 – Mueller, Klaus – 1-0 – Schlieder, Rolf – G8 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 d5 6. a3 cxd4 7. exd4 Be7 8. Ng3 O-O 9. cxd5 Nxd5 10. Bd3 Nc6
1952 Liberation – Round 1 – O'Kelly de Galway, Alberic – 1-0 – Matanovic, Aleksandar – G2 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 d5 6. a3 cxd4 7. exd4 Be7 8. c5 O-O 9. b4 Nbd7 10. Nf4 Ne4
1952 Liberation – Round 10 – Bogoljubow, Efim D – 0-1 – Matanovic, Aleksandar – G31 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 d5 6. a3 cxd4 7. axb4 dxc3 8. Nxc3 O-O 9. b5 b6 10. Be2 Bb7
1952 Liberation – Round 6 – Bogoljubow, Efim D – 1/2-1/2 – Gruenfeld, Ernst – G27 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 d5 6. a3 Bxc3+ 7. Nxc3 cxd4 8. exd4 dxc4 9. Bxc4 O-O 10. O-O Nc6
1954 Amsterdam olm – Round 1 – Botvinnik, Mikhail – 1-0 – Pirc, Vasja – G2 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 d5 6. a3 Bxc3+ 7. Nxc3 b6 8. cxd5 exd5 9. Bb5+ Bd7 10. Be2 Bc6
1954 Mar del Plata/B.Aires zt it-17 – Round 7 – Sanguinetti Lopez, Jose Pablo – 0-1 – Najdorf, Miguel – G4 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 d5 6. a3 cxd4 7. exd4 Be7 8. c5 b6 9. b4 O-O 10. Na4 bxc5
1955 Hamburg – Round 7 – Beni, Alfred – 0-1 – Golombek, H. – G57 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 d5 6. a3 cxd4 7. exd4 Be7 8. c5 O-O 9. Ng3 Bd7 10. Be2 b6
1955 Manhattan CC Ch 5556 – Round 11 – Turner, Abe J – 0-1 – Klugman, Reuben – G49 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 d5 6. cxd5 Nxd5 7. Bd2 cxd4 8. exd4 Nc6 9. a3 Be7 10. Be3 Nxe3
1956 Alekhine Memorial – Round 1 – Botvinnik, Mikhail – 1-0 – Najdorf, Miguel – G23 1. c4 Nf6 2. Nc3 e6 3. d4 Bb4 4. e3 c5 5. Ne2 d5 6. a3 cxd4 7. axb4 dxc3 8. Nxc3 O-O 9. cxd5 Nxd5 10. Nxd5 Qxd5
1956 Harmonie CC Open – Round 10 – Grimshaw, David – 1/2-1/2 – Anderson, Frank Ross – G10 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 d5 6. a3 cxd4 7. axb4 dxc3 8. Nxc3 O-O 9. cxd5 exd5 10. Be2 Nc6
1957 Bratislava Bratislava SVK – Round 10 – Bertok, Mario Jr. – 1/2-1/2 – Tringov, Georgi P – G42 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 d5 6. a3 Bxc3+ 7. Nxc3 cxd4 8. exd4 dxc4 9. Bxc4 O-O 10. O-O Nc6
1957 Corr – Round ? – Korning, Peter – 1/2-1/2 – Andreasen Harry – G4 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 d5 6. a3 Bxc3+ 7. Nxc3 cxd4 8. exd4 dxc4 9. Bxc4 O-O 10. O-O Nbd7
1957 Hamburg Ch – Round 6 – Reiher, Jack – 0-1 – Rellstab, Ludwig Sr – G6 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 d5 6. a3 cxd4 7. exd4 Be7 8. c5 O-O 9. b4 Nc6 10. Ng3 Ne4
1957 Przepiorka Memorial – Round 3 – Sliwa, Bogdan – 1-0 – Szukszta, Janus – G16 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 d5 6. a3 cxd4 7. exd4 Be7 8. c5 a5 9. Rb1 Nc6 10. b4 axb4
1957 Vienna AUT – Round 3 – Jezek, Jaroslav – 1/2-1/2 – Rellstab, Ludwig – G6 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 d5 6. a3 cxd4 7. axb4 dxc3 8. Nxc3 O-O 9. cxd5 exd5 10. Be2 Nc6
1957 Wageningen zt – Round 12 – Uhlmann, Wolfgang – 1/2-1/2 – Niephaus, Walter – G57 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 d5 6. a3 cxd4 7. axb4 dxc3 8. Nxc3 dxc4 9. Qxd8+ Kxd8 10. Bxc4 Nbd7
1957 Warchau ch POL – Round 17 – Sliwa, Bogdan – 0-1 – Szukszta, Janus – G91 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 d5 6. a3 cxd4 7. axb4 dxc3 8. Nxc3 O-O 9. cxd5 exd5 10. Be2 Be6
1957 WchT U26 04th – Round 8.4 – Saidy, Anthony – 1-0 – Sammalisto, L. – G111 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 d5 6. a3 cxd4 7. axb4 dxc3 8. Nxc3 Nc6 9. cxd5 exd5 10. b5 Ne5
1958 AUS Ch – Round 3.3 – Viner, Philip John – 1/2-1/2 – Sarapu, Ortvin – G17 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 d5 6. a3 Bxc3+ 7. Nxc3 cxd4 8. exd4 Nc6 9. c5 Ne4 10. Nxe4 dxe4
1958 Munich olm prel – Round 2 – Russell, M K A – 0-1 – Noradounghian, Georges – G43 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 d5 6. a3 cxd4 7. exd4 Be7 8. c5 O-O 9. Bf4 b6 10. cxb6 Qxb6
1958 Munich olm prel – Round 8 – Clarke, Peter H – 1/2-1/2 – Bertholdt, Dieter – G176 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 d5 6. a3 Ba5 7. dxc5 dxc4 8. Qxd8+ Kxd8 9. Ng3 Bxc3+ 10. bxc3 Nbd7
1959 Candidats Tournament – Round 15 – Petrosian, Tigran V – 0-1 – Olafsson, Fridrik – G55 1. c4 e6 2. Nc3 Nf6 3. d4 Bb4 4. e3 c5 5. Ne2 d5 6. a3 Bxc3+ 7. Nxc3 cxd4 8. exd4 dxc4 9. Bxc4 Nc6 10. Be3 O-O
1959 URS Team Ch – Round ? – Lutikov, Anatoly S – 0-1 – Tolush, Alexander V – G104 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 d5 6. a3 Bxc3+ 7. Nxc3 cxd4 8. exd4 dxc4 9. Bxc4 Nc6 10. Be3 O-O
1960 Budapest zt – Round 9 – Golz, Werner – 1/2-1/2 – Matanovic, Aleksandar – G49 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 d5 6. a3 cxd4 7. exd4 Be7 8. c5 O-O 9. b4 b6 10. Ng3 a5
1960 GBR Ch 47th – Round 10.2 – Barden, Leonard – 1/2-1/2 – Golombek, Harry – G85 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 d5 6. a3 cxd4 7. exd4 Be7 8. Nf4 dxc4 9. Bxc4 O-O 10. O-O Nc6
1960 Poland Ch – Round 15 – Gromek, Jozef – 0-1 – Filipowicz, Andrzej – G59 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 d5 6. a3 Bxc3+ 7. Nxc3 cxd4 8. exd4 dxc4 9. Bxc4 Nc6 10. Be3 O-O
1960 URS Ch sf – Round 5 – Antoshin, Vladimir S – 1-0 – Vistaneckis, Isakas – G35 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 d5 6. a3 Bxc3+ 7. Nxc3 cxd4 8. exd4 dxc4 9. Bxc4 Nc6 10. Be3 O-O
1961 Bucharest GMT 5th – Round 5 – Mititelu, Gheorghe – 1/2-1/2 – Radovici, Corvin – G19 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 d5 6. a3 Bxc3+ 7. Nxc3 cxd4 8. exd4 dxc4 9. Bxc4 Nc6 10. d5 exd5
1961 Graz 1st – Round 2 – Struner Philipp – 1/2-1/2 – Rellstab, Ludwig – G4 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 d5 6. a3 cxd4 7. axb4 dxc3 8. Nxc3 O-O 9. cxd5 exd5 10. Be2 Be6
1961 New York ch-USA – Round 5 – Byrne, David – 1/2-1/2 – Turner, Abe J – G20 1. c4 Nf6 2. Nc3 e6 3. d4 Bb4 4. e3 c5 5. Ne2 d5 6. a3 Bxc3+ 7. bxc3 dxc4 8. Ng3 O-O 9. Bxc4 Qc7 10. Ba2 Rd8
1961 Warsaw – Round ? – Sliwa, Bogdan – 0-1 – Tolush, Alexander V – G80 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 d5 6. a3 Bxc3+ 7. Nxc3 cxd4 8. exd4 dxc4 9. Bxc4 Nc6 10. d5 exd5
1961 Zevenaar – Round 13 – Wade, Robert G – 1/2-1/2 – Matanovic, Aleksandar – G85 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 d5 6. a3 cxd4 7. exd4 Be7 8. Nf4 dxc4 9. Bxc4 O-O 10. O-O Nbd7
1961 Zevenaar – Round 6 – Henneberke, Frans – 1/2-1/2 – Rellstab, Ludwig – G9 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 d5 6. a3 cxd4 7. exd4 Bxc3+ 8. Nxc3 dxc4 9. Bxc4 Nc6 10. Be3 O-O
1962 Spartak Ch – Round 4 – Pelts, Roman – 0-1 – Khasin, Abram – G28 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 d5 6. a3 Bxc3+ 7. Nxc3 cxd4 8. exd4 dxc4 9. Bxc4 O-O 10. O-O Nc6
1962 Varna olm – Round 8 – Ghitescu, Theodor – 1/2-1/2 – Matanovic, Aleksandar – G187 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 d5 6. a3 cxd4 7. axb4 dxc3 8. Nxc3 O-O 9. c5 b6 10. Be2 Bd7
1962 Whitby ch-BCF – Round 2 – Wallis, Philip N – 0-1 – Hilton, CG. – G33 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 d5 6. a3 cxd4 7. axb4 dxc3 8. Nxc3 O-O 9. cxd5 exd5 10. Be2 Be6
1963 Hoogovens – Round 5 – Gereben, Erno – 0-1 – Donner, Jan-Hein – G44 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 d5 6. a3 Ba5 7. dxc5 dxc4 8. Qxd8+ Kxd8 9. Nd4 Bxc3+ 10. bxc3 Nbd7
1964 Amsterdam Interzonal – Round 1 – Vranesic, Zvonko – 1/2-1/2 – Porath, Yosef – G3 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 d5 6. a3 Bxc3+ 7. Nxc3 cxd4 8. exd4 Nc6 9. Be3 O-O 10. Rc1 Re8
1964 Capablanca Memorial – Round 7 – Wade, Robert G – 1/2-1/2 – Donner, Jan-Hein – G70 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 d5 6. a3 Ba5 7. cxd5 Nxd5 8. Bd2 cxd4 9. Nxd5 Qxd5 10. Bxa5 Qxa5+
1965 Corr – Round ? – Neergaard, Holger – 0-1 – Korning, Peter – G5 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 d5 6. a3 cxd4 7. exd4 Bxc3+ 8. Nxc3 dxc4 9. Bxc4 O-O 10. O-O Nc6
1966 Panamerican – Round ? – Alvarez del Monte, Jose – 0-1 – Cuartas, Carlos Enrique – G71 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 d5 6. a3 cxd4 7. exd4 Be7 8. Nf4 O-O 9. cxd5 Nxd5 10. Bd3 Nxf4
1967 URS Team Ch – Round 1 – Kholmov, Ratmir D – 1-0 – Sardarov, Edward – G19 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 d5 6. a3 cxd4 7. axb4 dxc3 8. Nxc3 O-O 9. cxd5 exd5 10. Be2 Qe7
1968 Lugano SUI – Round 10 – Ghitescu, Theodor – 1/2-1/2 – Parma, Bruno – G95 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 d5 6. a3 Bxc3+ 7. Nxc3 cxd4 8. exd4 dxc4 9. Bxc4 Nc6 10. Be3 O-O
1968 Reggio Emilia – Round 4 – Ghitescu, Theodor – 1/2-1/2 – Damjanovic, Mato – G5 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 d5 6. a3 cxd4 7. axb4 dxc3 8. Nxc3 O-O 9. cxd5 exd5 10. Be2 Nc6
1968 Solingen – Round 13 – O'Kelly de Galway, Alberic – 1/2-1/2 – Parma, Bruno – G54 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 d5 6. a3 Bxc3+ 7. Nxc3 cxd4 8. exd4 dxc4 9. Bxc4 Nc6 10. Be3 O-O
1969 Buesum – Round 11 – Ghitescu, Theodor – 1-0 – Saemisch, Friedrich – G48 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 d5 6. a3 cxd4 7. axb4 dxc3 8. Nxc3 O-O 9. cxd5 exd5 10. Be2 Be6
1969 Capablanca Memorial – Round 10 – O'Kelly, Albéric de Galway – 1/2-1/2 – Parma, Bruno – G77 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 d5 6. a3 cxd4 7. axb4 dxc3 8. Nxc3 O-O 9. Be2 dxc4 10. Qxd8 Rxd8
1969 Capablanca Memorial – Round 9 – Abreu Rodriguez, Juan Luis – 1/2-1/2 – O'Kelly de Galway, Alberic – G66 1. c4 Nf6 2. Nc3 e6 3. d4 Bb4 4. e3 c5 5. Ne2 d5 6. a3 cxd4 7. axb4 dxc3 8. Nxc3 O-O 9. Be2 dxc4 10. Qxd8 Rxd8
1969 Vidmar Memorial – Round 10 – Bajec, Ivo – 0-1 – Damjanovic, Mato – G30 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 d5 6. a3 cxd4 7. axb4 dxc3 8. Nxc3 O-O 9. cxd5 exd5 10. Be2 Nc6
36. Olympiad 2004 – Round 6 – Beliavsky, Alexander G – 1/2-1/2 – Babula, Vlastimil – G189 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 d5 6. a3 Ba5 7. cxd5 cxd4 8. Qxd4 exd5 9. Qe5+ Be6 10. Nd4 Nbd7
85. Tata Steel Masters 2023 – Round 11.2 – Carlsen, Magnus – 1/2-1/2 – So, Wesley – G72 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 d5 6. a3 Bxc3+ 7. Nxc3 cxd4 8. exd4 dxc4 9. Bxc4 Nc6 10. Be3 O-O
Amber-rapid 7th 1998 – Round 9 – Sadler, Matthew D – 1/2-1/2 – Karpov, Anatoly – G39 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 d5 6. a3 Bxc3+ 7. Nxc3 cxd4 8. exd4 dxc4 9. Bxc4 Nc6 10. Be3 O-O
Bugojno 1984 – Round 1 – Miles, Anthony J – 0-1 – Andersson, Ulf 1949 – G15 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 d5 6. a3 Bxc3+ 7. Nxc3 cxd4 8. exd4 dxc4 9. Bxc4 O-O 10. Qd3 Nc6
Bugojno 1984 – Round 1 – Torre, Eugenio – 1/2-1/2 – Andersson, Ulf 1949 – G14 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 d5 6. a3 Bxc3+ 7. Nxc3 cxd4 8. exd4 dxc4 9. Bxc4 Nc6 10. d5 exd5
Karpov - Korchnoi World Championship Match 1978 – Round 5 – Korchnoi, Viktor – 1/2-1/2 – Karpov, Anatoly – G1 1. c4 Nf6 2. d4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 d5 6. a3 Bxc3+ 7. Nxc3 cxd4 8. exd4 dxc4 9. Bxc4 Nc6 10. Be3 O-O
Levitov Chess Week Rapid 2023 – Round 9.2 – Grischuk, Alexander – 0-1 – Nepomniachtchi, Ian – G42 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 d5 6. a3 Ba5 7. dxc5 dxc4 8. Bd2 O-O 9. Ng3 b6 10. Bxc4 bxc5
Olympiad 2002 – Round 13 – Xu, Jun(SD) – 0-1 – Cvitan, Ognjen – G442 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 d5 6. a3 Bxc3+ 7. Nxc3 cxd4 8. exd4 dxc4 9. Bxc4 Nc6 10. Be3 O-O
SuperUnited Blitz 2023 – Round 8.2 – Caruana, Fabiano – 1/2-1/2 – Nepomniachtchi, Ian – G37 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 d5 6. a3 Ba5 7. dxc5 dxc4 8. Qxd8+ Kxd8 9. Bd2 Nbd7 10. Nd4 Nxc5
Thessaloniki olm 1984 – Round 9 – Georgiev, Kiril – 1/2-1/2 – Andersson, Ulf 1949 – G54 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 d5 6. a3 Bxc3+ 7. Nxc3 cxd4 8. exd4 dxc4 9. Bxc4 Nc6 10. Be3 O-O
World Blitz 2009 – Round 7 – Grischuk, Alexander – 1/2-1/2 – Karpov, Anatoly – G65 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 d5 6. a3 Bxc3+ 7. Nxc3 cxd4 8. exd4 dxc4 9. Bxc4 Nc6 10. Be3 O-O
World Blitz 2023 – Round 4.9 – Ponomariov, Ruslan – 0-1 – Duda, Jacob – G255 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 d5 6. a3 Ba5 7. dxc5 dxc4 8. Qxd8+ Bxd8 9. Ng3 Nbd7 10. Bxc4 Nxc5
Yerevan ol (Men) 1996 – Round 6 – Illescas Cordoba, Miguel – 1/2-1/2 – Xu, Jun(SD) – G80 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 d5 6. a3 Bxc3+ 7. Nxc3 cxd4 8. exd4 dxc4 9. Bxc4 Nc6 10. Be3 O-O

E42b — Nimzo-Indian (1946)

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 c5 5.Ne2 d5

Les coups candidats

6.a3 — 90.1% (861 parties)

Ambassadeurs : Andersson, Ulf (8x), Hulak, Krunoslav (8x), Matanovic, Aleksandar (7x), Botvinnik, Mikhail (5x), Rellstab, Ludwig (5x), Ghitescu, Theodor (5x), Naumkin, Igor (5x), Alexander Tadala (4x)

6.cxd5 — 7.7% (74 parties)

Ambassadeurs : Vaisser, Anatoli (4x), Karpov, Anatoly (4x), Krogius, Nikolai V (2x), Mititelu, Gheorghe (2x), Bilsel, Sabahaddin (2x), Ungureanu, Emil (1x), Georgescu, Vasile Sr (1x), Johnsen, Larus (1x)

6.dxc5 — 1.9% (18 parties)

Ambassadeurs : Primavera, Roberto (1x), Hendriks, Willy (1x), Latko, Wilhelm (1x), Beerheide Walther (1x), Adly, Ahmed (1x), Monteza Prieto, Martin (1x), Selvas Aguirre, Silverio (1x), Gonzalez, Roberto (1x)

6.Bd2 — 0.3% (3 parties)

Ambassadeurs : Rapaka Samuel Paul (1x), Margolits, Z. (1x), Cuneo, Raymond J (1x), Leidner, Mike (1x), Zobel, Wolfgang (1x), Kahsnitz, Hans (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	6.a3	6.cxd5	6.dxc5	6.Bd2
<1800	19	84%	16%	—	—
1800-2200	232	89%	7%	4%	—
2200-2600	492	91%	8%	1%	—
2600+	36	94%	6%	—	—

Évolution par décennie (% des parties)

Décennie	N parties	6.a3	6.cxd5	6.dxc5	6.Bd2
1950s	53	87%	8%	4%	2%
1960s	46	85%	13%	—	2%
1970s	43	100%	—	—	—
1980s	136	96%	4%	—	—
1990s	174	91%	6%	2%	1%
2000s	204	87%	9%	3%	—
2010s	184	87%	11%	2%	—
2020s	116	91%	8%	2%	—

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
6.a3	87%	91%	▲ +3.6%
6.cxd5	11%	8%	▼ -3.1%
6.dxc5	2%	2%	-0.4%
6.Bd2	0%	0%	+0.0%

Joueurs célèbres

Champions du monde dans cette position

Karpov, Anatoly — 9 parties
Botvinnik, Mikhail — 5 parties
Carlsen, Magnus — 2 parties
Kasparov, Garry — 1 partie

Parties historiques

6.a3 — 90.1% (861 parties)

1950 — Fine, Reuben vs Rashevsky, Mykhailo — 0-1 — New York, NY USA
1951 — Matanovic, Aleksandar vs Golombek, Harry — 0-1 — Zonal Bad Pyrmont GER
1951 — Abdi, Andreas vs Matanovic, Aleksandar — 1/2-1/2 — Ljubljana
1951 — Evans, Larry vs Smith, Kenneth — 1-0 — Forth Worth
1952 — Boey, Josef vs O'Kelly de Galway, Alberic — 0-1 — Ghent

6.cxd5 — 7.7% (74 parties)

1950 — O'Kelly de Galway, Alberic vs Matanovic, Aleksandar — 1/2-1/2 — Bled SLO
1952 — Johnsen, Larus vs Weichselbaumer, Ernst — 0-1 — Helsinki olm
1955 — Turner, Abe J vs Klugman, Reuben — 0-1 — New York, NY USA
1959 — Krogius, Nikolai V vs Lutikov, Anatoly S — 1/2-1/2 — Voronezh RUS
1960 — Ungureanu, Emil vs Georgescu, Vasile Sr — 1/2-1/2 — Bucharest ROU

6.dxc5 — 1.9% (18 parties)

1957 — Latko, Wilhelm vs Beerheide Walther — 1-0 — ?
1959 — Primavera, Roberto vs Hendriks, Willy — 0-1 — Muenchenstein/Basel
1994 — Selvas Aguirre, Silverio vs Gonzalez, Roberto — 0-1 — MEX
1996 — Volak, Michal vs Munk, Lubomir — 1-0 — Stary Smokovec SVK
1999 — Adly, Ahmed vs Monteza Prieto, Martin — 1-0 — Oropesa del Mar ESP

6.Bd2 — 0.3% (3 parties)

1958 — Rapaka Samuel Paul vs Margolits, Z. — 0-1 — Haifa simultaan
1964 — Cuneo, Raymond J vs Leidner, Mike — 0-1 — Oakland
1993 — Zobel, Wolfgang vs Kahsnitz, Hans — 0-1 — CIF TT-93-0206A