E51b — Nimzo-Indian: 4.e3 O-O 5.Nf3 d5 6.a3

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nf3 d5 6.a3 * ● Trait aux Noirs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Atouts. Les Blancs s'appuient sur les cases fortes b5 et e5 et la paire de fous.

Côté adverse. Le fou enfermé en c8 et une pièce en prise (le fou en b4).

En contrepartie. Le roi n'est pas encore à l'abri et plusieurs pièces dorment encore (les fous c1 et f1 et les tours a1 et h1).

Plans. O-O (Mettre le roi en sécurité, connecter les tours) ; Bd2 (Développer Bc1) ; Bd3 (Développer Bf1) ; h3 (Empêcher ...Bg4).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Atouts. Les Noirs s'appuient sur la case forte e4, un avant-poste en e4, un fou actif en b4 et la paire de fous.

Côté adverse. Les fous enfermés en c1 et f1 et le roi resté au centre.

En contrepartie. Plusieurs pièces dorment encore (le cavalier b8, le fou c8 et la tour a8).

Plans. ...Bd7 (PRIORITÉ: libérer le Bc8 (...Bd7, b6+Bb7, ...Bg4, ...Bf5)) ; ...Nbd7 (Développer Nb8) ; ...Bg4 (Clouer Nf3) ; ...e5 (Rupture).

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● b2→a3, f2→e3, e3→d4	● e6→d5, f7→e6
Passés	—	—
Majorité	—	—

Cases

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

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 1)
Bf1	● Bf1 Non développé (mob. 2)
Bb4		● Bb4 Actif (mob. 6)
Bc8		● Bc8 Non développé (mob. 1)
Paire de fous	● Oui	● Oui
Clouages	● knight c3	—
Non développées	4 (c1, f1, a1, h1)	3 (b8, c8, a8)

Sécurité du roi

	♔ Blancs	♚ Noirs
Statut	● Au centre !	● Roqué
Droits de roque	O-O / O-O-O	—

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	fermé
Ruptures	● c4-c5, ● e3-e4	● …e6-e5

Partie
? 1990 – Round ? – Korchnoi, Viktor – 1-0 – Palac, Mladen – G7 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5 6. a3 Bxc3+ 7. bxc3 c5 8. Bb2 Nc6 9. Qc2 cxd4 10. cxd4 Bd7
1939 Leningrad/Moscow – Round 6 – Lilienthal, Andor – 1/2-1/2 – Romanovsky, Pjotr – G43 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. e3 O-O 6. a3 Bxc3+ 7. bxc3 c6 8. Bd3 Nbd7 9. O-O Re8 10. cxd5 exd5
1940 Moskou ch-URS – Round 1 – Stolberg, Mark Moiseevich – 1-0 – Ragozin, Viacheslav – G59 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. e3 O-O 6. a3 Be7 7. Bd3 Nbd7 8. O-O c5 9. cxd5 exd5 10. Ne5 c4
1941 Buenos Aires Circulo – Round 3 – Najdorf, Miguel – 1-0 – Czerniak, Moshe – G8 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Bb4 5. e3 O-O 6. a3 Bxc3+ 7. bxc3 Re8 8. Bd3 Nc6 9. cxd5 exd5 10. Qc2 a6
1942 Moscow RUS – Round 1 – Kotov Lundqvist, Alex – 1-0 – Ragozin, Viacheslav – G10 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. e3 O-O 6. a3 Be7 7. Bd3 b6 8. O-O Bb7 9. Qe2 Ne4 10. Qc2 f5
1945 Buenos Aires Circulo – Round 1 – Najdorf, Miguel – 1-0 – Czerniak, Magdalena – G3 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Bb4 5. e3 O-O 6. a3 Bxc3+ 7. bxc3 Nc6 8. cxd5 exd5 9. Bd3 Bg4 10. Qc2 Re8
1946 Hungary – Round 1 – Gereben, Erno – 1-0 – Kluger, Gyula – G11 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 d5 5. Nf3 O-O 6. a3 Bxc3+ 7. bxc3 c5 8. a4 Ne4 9. Bd3 Nxc3 10. Qc2 Ne4
1946 New York ch-USA – Round 1 – Horowitz, Albert Israel – 1-0 – Pinkus, Albert – G17 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. e3 O-O 6. a3 Bxc3+ 7. bxc3 c5 8. cxd5 exd5 9. Be2 b6 10. c4 Ba6
1949 Budapest-Moscow – Round 11 – Tipary, Lajos – 0-1 – Ragozin, Viacheslav – G79 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Bb4 5. e3 O-O 6. a3 Bxc3+ 7. bxc3 b6 8. Qc2 Bb7 9. cxd5 exd5 10. Bd3 Nbd7
1949 Moscow RUS – Round 1 – Simagin, Vladimir – 1-0 – Chistiakov, Alexander – G13 1. d4 Nf6 2. Nf3 e6 3. c4 d5 4. Nc3 Bb4 5. e3 O-O 6. a3 Bxc3+ 7. bxc3 c5 8. cxd5 exd5 9. Bd3 Nc6 10. O-O c4
1949 URS Ch, semi final – Round 7 – Simagin, Vladimir – 0-1 – Kirilov, Valentins – G55 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Nf3 Bb4 5. e3 O-O 6. a3 Bxc3+ 7. bxc3 c5 8. Bd3 Qc7 9. cxd5 cxd4 10. cxd4 Qc3+
1950 Interzonal – Round 13 – Pilnik, Herman – 1-0 – Kostic, Boris – G23 1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 Bb4 5. e3 O-O 6. a3 Bxc3+ 7. bxc3 c5 8. cxd5 exd5 9. Bd3 Nc6 10. O-O c4
1953 Candidats Tournament – Round 23 – Szabo, Laszlo – 1/2-1/2 – Najdorf, Miguel – G149 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5 6. a3 Bxc3+ 7. bxc3 b6 8. cxd5 exd5 9. Bd3 c5 10. O-O Nc6
1953 Hastings ch-BCF – Round 3 – Barden, Leonard – 1/2-1/2 – Horne, Dennis Morton – G30 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. e3 O-O 6. a3 Bxc3+ 7. bxc3 Ne4 8. Qc2 Nd6 9. cxd5 exd5 10. Bd3 f5
1953 Mar del Plata – Round 6 – Ojanen, Kaarle S – 0-1 – Trifunovic, Petar – G74 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5 6. a3 Bxc3+ 7. bxc3 c5 8. cxd5 Nxd5 9. c4 Nf6 10. Qc2 cxd4
1953 POL-ch11 – Round 17 – Makarczyk, Kazimierz – 1-0 – Ziembinski, Marian – G114 1. Nf3 Nf6 2. c4 e6 3. Nc3 d5 4. d4 Bb4 5. e3 O-O 6. a3 Bxc3+ 7. bxc3 c5 8. cxd5 exd5 9. Bd3 c4 10. Be2 Nc6
1954 URS Team Ch – Round 3 – Poljak, Srebrenka – 1/2-1/2 – Kholmov, Ratmir D – G35 1. c4 e6 2. Nf3 d5 3. d4 Nf6 4. Nc3 Bb4 5. e3 O-O 6. a3 Be7 7. Bd3 b6 8. Qe2 c5 9. dxc5 bxc5 10. O-O Bb7
1956 Alekhine Memorial – Round ? – Sliwa, Bogdan – 0-1 – Padevsky, Nikola – G94 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. e3 O-O 6. a3 Bxc3+ 7. bxc3 c5 8. cxd5 exd5 9. Bd3 b6 10. O-O Ba6
1957 Bratislava – Round 1 – Bertok, Mario Jr. – 1/2-1/2 – Kozma, Julius – G2 1. c4 Nf6 2. Nc3 e6 3. Nf3 d5 4. d4 Bb4 5. e3 O-O 6. a3 Bxc3+ 7. bxc3 c5 8. Bd3 dxc4 9. Bxc4 Qc7 10. Qc2 b6
1957 Leningrad Ch – Round 9 – Bykov, Vladimir – 0-1 – Estrin, Yakov – G70 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. e3 O-O 6. a3 Bxc3+ 7. bxc3 Nc6 8. cxd5 exd5 9. c4 Bg4 10. Bb2 Re8
1957 URS Ch, semi final – Round 4 – Tarasov, Vadim – 1/2-1/2 – Aronson, Lev – G60 1. Nf3 Nf6 2. c4 e6 3. Nc3 d5 4. d4 Bb4 5. e3 O-O 6. a3 Bxc3+ 7. bxc3 c5 8. cxd5 exd5 9. Bd3 Bg4 10. O-O Nbd7
1957 Vienna AUT – Round 6 – Boleslavsky, Isaac – 1/2-1/2 – Rabar, Bakhtyar Hamasaleh – G11 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. e3 O-O 6. a3 Bxc3+ 7. bxc3 c5 8. cxd5 exd5 9. Be2 Ne4 10. Bb2 cxd4
1958 Wageningen Caldex – Round 1 – Van Scheltinga, Theo – 1/2-1/2 – Bouwmeester, Hans – G1 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5 6. a3 Be7 7. Bd3 Nbd7 8. O-O c5 9. cxd5 exd5 10. Ne5 Qc7
1959 Argentina – Round 15 – Marini, Luis – 0-1 – Wexler, Bernardo – G80 1. c4 Nf6 2. Nc3 e6 3. Nf3 d5 4. d4 Bb4 5. e3 O-O 6. a3 Bxc3+ 7. bxc3 c5 8. cxd5 exd5 9. Bd3 c4 10. Bc2 Bg4
1960 Zonal (Men) Budapest HUN – Round 4 – Raisa, Unto – 1-0 – Kozma, Julius – G5 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5 6. a3 Bxc3+ 7. bxc3 c5 8. cxd5 exd5 9. Bd3 b6 10. O-O Ba6
1961 FRG Ch Bad Prymont – Round 12 – Bialas, Wolfram – 0-1 – Weise, Dieter – G25 1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 Bb4 5. e3 O-O 6. a3 Bxc3+ 7. bxc3 c5 8. cxd5 exd5 9. Bd3 Bg4 10. O-O c4
1961 Maroczy Memorial – Round 1 – Portisch, Lajos – 1-0 – Simagin, Vladimir – G18 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5 6. a3 Be7 7. Bd3 b6 8. O-O c5 9. b3 Bb7 10. Bb2 cxd4
1961 Maroczy Memorial Budapest HUN – Round 1 – Bisguier, Arthur B – 1-0 – Pogats, Jozsef Jr. – G28 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. e3 O-O 6. a3 Bxc3+ 7. bxc3 c5 8. cxd5 exd5 9. Bd3 b6 10. O-O Ba6
1961 USA Ch Open 62th – Round 10 – Kovacs, Zoltan – 1/2-1/2 – Rivise, Irving – G41 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5 6. a3 Be7 7. cxd5 exd5 8. h3 a5 9. Bd3 Nbd7 10. O-O c5
1961 Warsaw-Budapest m – Round ? – Szukszta, Janus – 1/2-1/2 – Liptay, Laszlo Dr. – G3 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Bb4 5. e3 O-O 6. a3 Be7 7. Bd3 Nc6 8. b3 b6 9. Bb2 Bb7 10. O-O a6
1962 Asztalos Memorial 5th – Round 4 – Bilek, Istvan – 0-1 – Szabo, Laszlo – G25 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5 6. a3 Bxc3+ 7. bxc3 c5 8. Bb2 Nc6 9. Qc2 Qa5 10. Nd2 Qc7
1962 Spartak Ch – Round 13 – Kondratiev, Pavel E – 1/2-1/2 – Estrin, Yakov – G98 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. e3 O-O 6. a3 Bd6 7. b4 a5 8. b5 dxc4 9. Bxc4 Nbd7 10. Bb2 Qe7
1962 Spartak Ch – Round 15 – Zaitsev, Alexander – 1-0 – Estrin, Yakov – G114 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. e3 O-O 6. a3 Bd6 7. Bd3 dxc4 8. Bxc4 Nc6 9. e4 e5 10. d5 Ne7
1962 Stockholm Interzonal – Round 11 – Portisch, Lajos – 1/2-1/2 – Olafsson, Fridrik – G92 1. c4 Nf6 2. Nc3 e6 3. d4 Bb4 4. e3 O-O 5. Nf3 d5 6. a3 Bxc3+ 7. bxc3 c5 8. Bb2 Qa5 9. Nd2 cxd4 10. cxd4 b6
1963 Leningrad ch-URS – Round 1 – Stein, Leon Rico – 1/2-1/2 – Gipslis, Aivars – G37 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5 6. a3 Bxc3+ 7. bxc3 c5 8. cxd5 exd5 9. Bd3 Bg4 10. O-O Nc6
1964 Buenos Aires – Round 5 – Petrosian, Tigran V – 1-0 – Rubinetti, Jorge – G45 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 O-O 5. e3 d5 6. a3 Be7 7. b4 b6 8. cxd5 exd5 9. Bb2 Bb7 10. Bd3 Nbd7
1964 Pecs – Round 2 – Kholmov, Ratmir D – 1-0 – Pogats, Jozsef Jr. – G9 1. d4 Nf6 2. Nf3 e6 3. c4 d5 4. Nc3 Bb4 5. e3 O-O 6. a3 Bxc3+ 7. bxc3 c5 8. cxd5 exd5 9. Bd3 b6 10. O-O Ba6
1964 Tel Aviv olm prel – Round 2 – Ader Hausman, Walter – 0-1 – Medina Garcia, Antonio Angel – G48 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Bb4 5. e3 O-O 6. a3 Bxc3+ 7. bxc3 c5 8. Bd3 Qc7 9. Qc2 dxc4 10. Bxc4 b6
1965 Capablanca Memorial – Round 13 – Szabo, Ladislav – 1/2-1/2 – Kholmov, Ratmir D – G131 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5 6. a3 Bxc3+ 7. bxc3 c5 8. Bb2 Nc6 9. Qc2 Qa5 10. Nd2 Rd8
1965 Hungary – Round 1 – Flesch, Janos – 1-0 – Szilagyi, Peter – G48 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. e3 O-O 6. a3 Be7 7. b4 b6 8. cxd5 exd5 9. Bd3 c5 10. bxc5 bxc5
1965 It Zinnowitz GER – Round 9 – Simagin, Vladimir – 1-0 – Spassov, Liuben – G21 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 O-O 5. e3 d5 6. a3 Be7 7. Bd3 b6 8. cxd5 exd5 9. b4 Bb7 10. Bb2 Nbd7
1966 ARMIES-ch3 – Round 6 – Geller, Efim P – 1-0 – Novak, Ervin – G13 1. c4 Nf6 2. Nc3 e6 3. d4 Bb4 4. Nf3 O-O 5. e3 d5 6. a3 Be7 7. Bd3 b6 8. O-O dxc4 9. Bxc4 Ba6 10. Bxa6 Nxa6
1967 CSR Ch – Round 11 – Jankovec, Ivan – 0-1 – Kozma, Julius – G73 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5 6. a3 Bxc3+ 7. bxc3 c5 8. cxd5 exd5 9. Bd3 Nc6 10. h3 Qa5
1967 Kiev (Ukraine) – Round 4 – Kots, Yuri I – 1/2-1/2 – Kurass, Iskir – G4 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. e3 O-O 6. a3 Bxc3+ 7. bxc3 c5 8. cxd5 exd5 9. Bd3 Nc6 10. O-O Re8
1967 Sochi – Round 3 – Kotov Lundqvist, Alex – 1/2-1/2 – Lein, Andreas – G30 1. c4 Nf6 2. Nc3 e6 3. d4 Bb4 4. e3 O-O 5. Nf3 d5 6. a3 Bxc3+ 7. bxc3 c5 8. cxd5 exd5 9. Bd3 Nc6 10. h3 c4
1967 Sousse Interzonal – Round 6 – Korchnoi, Viktor – 1/2-1/2 – Reshevsky, Samuel – G50 1. c4 Nf6 2. Nc3 e6 3. d4 Bb4 4. e3 O-O 5. Nf3 d5 6. a3 Be7 7. b4 c6 8. Bb2 Nbd7 9. Be2 dxc4 10. Bxc4 a5
1968 Alma Ata ch-URS – Round 17 – Osnos, Viatcheslav – 1/2-1/2 – Bagirov, Vladimir – G150 1. Nf3 d5 2. c4 e6 3. d4 Nf6 4. Nc3 Bb4 5. e3 O-O 6. a3 Be7 7. Bd3 b6 8. O-O Bb7 9. cxd5 exd5 10. b4 Nbd7
1968 Cardenas/Matanzas/Santa Clara – Round 14 – Letelier Martner, Rene – 1/2-1/2 – Rossetto, Hector – G71 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 O-O 5. e3 d5 6. a3 Bxc3+ 7. bxc3 b6 8. Bd3 dxc4 9. Bxc4 Bb7 10. O-O Nc6
1968 CSR Ch – Round 15 – Dolezal, Jiri – 1/2-1/2 – Lechtynsky, Jiri – G134 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 d5 5. e3 O-O 6. a3 Bxc3+ 7. bxc3 c5 8. Bb2 Nc6 9. Qc2 Qc7 10. Rd1 dxc4
1968 DDR Ch 17th – Round 16 – Espig, Lutz – 1-0 – Krug, Peter – G65 1. Nf3 e6 2. c4 Nf6 3. Nc3 d5 4. d4 Bb4 5. e3 O-O 6. a3 Bxc3+ 7. bxc3 Bd7 8. Be2 dxc4 9. Ne5 Nc6 10. Nxd7 Qxd7
1969 Hoogovens – Round 10 – Olafsson, Fridrik – 1-0 – Acuna Medina, Angel G. – G83 1. Nf3 Nf6 2. c4 e6 3. Nc3 d5 4. d4 Bb4 5. e3 O-O 6. a3 Bxc3+ 7. bxc3 c5 8. Bb2 Qa5 9. Nd2 Nbd7 10. cxd5 exd5
1969 Raach zt – Round 11 – Adamski, Jan – 1-0 – Drimer, Dolfi – G106 1. Nf3 Nf6 2. c4 e6 3. Nc3 d5 4. d4 Bb4 5. e3 O-O 6. a3 Bxc3+ 7. bxc3 c5 8. Bb2 Nbd7 9. cxd5 exd5 10. c4 dxc4
1972 Skopje ol (Men) fin-A – Round 7 – Peev, Peicho – 1-0 – Sydor, Andrzej – G173 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. e3 O-O 6. a3 Be7 7. b4 a5 8. b5 c5 9. Bb2 Nbd7 10. Rc1 b6
Amber Blindfold 2008 – Round 4 – Kramnik, Vladimir – 1-0 – Morozevich, Alexander – G15 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. e3 O-O 6. a3 Bxc3+ 7. bxc3 c6 8. Bd3 b6 9. cxd5 cxd5 10. Qe2 Bb7
Euwe Memorial 1991 – Round 8 – Korchnoi, Viktor – 1/2-1/2 – Ljubojevic, Ljubomir – G32 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5 6. a3 Be7 7. Qc2 b6 8. e4 dxe4 9. Nxe4 Bb7 10. Bd3 Nbd7
World Blitz 2019 – Round 15.65 – Reshetnikov, Alexey – 1/2-1/2 – Pashikian, Arman – G1037 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. e3 O-O 6. a3 Bxc3+ 7. bxc3 c6 8. Bd3 b6 9. cxd5 cxd5 10. Qe2 Bb7
World Blitz 2023 – Round 21.20 – Narayanan, Sunilduth Lyna – 1/2-1/2 – Vokhidov, Shamsiddin – G1183 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. e3 O-O 6. a3 Bxc3+ 7. bxc3 c5 8. a4 Qa5 9. Qc2 cxd4 10. exd4 Nc6

E51b —

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nf3 d5 6.a3

Eval: [-0.06]

Les coups candidats

6…Bxc3+ — 84.3% (487 parties)

Ambassadeurs : Korchnoi, Viktor (7x), Kozma, Julius (4x), Najdorf, Miguel (3x), Olafsson, Fridrik (3x), Peralta, Fernando (3x), Szymanski, Robert (3x), Atalik, Suat (3x), Simagin, Vladimir (2x)

6…Be7 — 13.5% (78 parties)

Ambassadeurs : Korchnoi, Viktor (4x), Ragozin, Viacheslav (2x), Geller, Efim P. (2x), Reshevsky, Samuel (2x), Simagin, Vladimir (2x), Spassov, Liuben (2x), Peralta, Fernando (2x), Stolberg, Mark Moiseevich (1x)

6…Bd6 — 2.2% (13 parties)

Ambassadeurs : Estrin, Yakov (2x), Vinje, Arne (1x), Rodriguez Vargas, Orestes (1x), Zaitsev, Alexander (1x), Kondratiev, Pavel E (1x), Graf, Alexander (1x), Kaliksteyn, Alexander (1x), Mosig, Rainer (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	6…Bxc3+	6…Be7	6…Bd6
<1800	14	93%	7%	—
1800-2200	160	82%	15%	3%
2200-2600	230	86%	13%	2%
2600+	18	89%	6%	6%

Évolution par décennie (% des parties)

Décennie	N parties	6…Bxc3+	6…Be7	6…Bd6
1930s	1	100%	—	—
1940s	9	78%	22%	—
1950s	24	88%	12%	—
1960s	43	67%	26%	7%
1970s	19	89%	11%	—
1980s	20	85%	15%	—
1990s	74	84%	12%	4%
2000s	123	87%	11%	2%
2010s	193	87%	11%	2%
2020s	72	82%	17%	1%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
6…Bxc3+	87%	82%	▼ -4.6%
6…Be7	11%	17%	▲ +5.3%
6…Bd6	2%	1%	▼ -0.7%

Joueurs célèbres

Champions du monde dans cette position

Kramnik, Vladimir — 2 parties
Smyslov, Vladimir — 1 partie
Carlsen, Magnus — 1 partie

Parties historiques

6…Bxc3+ — 84.3% (487 parties)

1939 — Lilienthal, Andor vs Romanovsky, Pjotr — 1/2-1/2 — Leningrad RUS
1941 — Najdorf, Miguel vs Czerniak, Moshe — 1-0 — Buenos Aires ARG
1945 — Najdorf, Miguel vs Czerniak, Magdalena — 1-0 — Buenos Aires ARG
1946 — Gereben, Erno vs Kluger, Gyula — 1-0 — Budapest HUN
1946 — Horowitz, Albert Israel vs Pinkus, Albert — 1-0 — New York ch-USA

6…Be7 — 13.5% (78 parties)

1940 — Stolberg, Mark Moiseevich vs Ragozin, Viacheslav — 1-0 — Moskou ch-URS
1942 — Kotov Lundqvist, Alex vs Ragozin, Viacheslav — 1-0 — Moscow RUS
1950 — Pilnik, Herman vs Rabar, Braslav — 1/2-1/2 — Bled SLO
1954 — Poljak, Srebrenka vs Kholmov, Ratmir D — 1/2-1/2 — Riga LAT
1958 — Van Scheltinga, Theo vs Bouwmeester, Hans — 1/2-1/2 — Wageningen NED

6…Bd6 — 2.2% (13 parties)

1962 — Zaitsev, Alexander vs Estrin, Yakov — 1-0 — Minsk BLR
1962 — Kondratiev, Pavel E vs Estrin, Yakov — 1/2-1/2 — Minsk BLR
1964 — Vinje, Arne vs Rodriguez Vargas, Orestes — 1/2-1/2 — Tel Aviv olm fin-B
1996 — Mosig, Rainer vs Menning, Uwe — 1-0 — Wiesbaden GER
1996 — Cempel, Jaroslav vs Jurasek, Miroslav — 0-1 — Czechia

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