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)
Cases faibles ● e4
Centre ● d4 (2v1), ● e5 (2v0) ● d5 (3v2)
Colonnes et diagonales
♔ Blancs ♚ Noirs
Pièces
♔ Blancs ♚ Noirs
Bc1 ● Bc1 Non développé (mob. 1)
Bd3 ● Bd3 Actif (mob. 8)
Bb4 ● Bb4 Ok (mob. 3)
Bc8 ● Bc8 Non développé (mob. 1)
Paire de fous ● Oui ● Oui
Clouages ● knight c3
Non développées 3 (● c1, ● 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 ● e3-e4 ● …e6-e5

E53b — Nimzo-Indian: Main Line, 6…c5 7.a3

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nf3 d5 6.Bd3 c5 7.a3 *   ● Trait aux Noirs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1
bR
bN
bB
bQ
bR
bK
bP
bP
bP
bP
bPPion sous pression
bP
bN
Case forte (2v0)
bP
bP
Case forte (2v0)
bB
wP
wPPion central
wP
wN
wBFou actif — mobilité 8
wPPion central
wN
wP
wP
wP
wP
wR
wB
wQ
wK
wR
abcdefgh
Plans. axb4 (Capture en b4, Expansion aile dame — 8 % des parties) ; O-O (Mettre le roi en sécurité, connecter les tours — 7 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8
wR
wK
wQ
wB
wR
wP
wP
wP
wP
wN
wP
wB
wN
wP
Avant-poste C (accessible)
wP
wP
bB
bP
bP
bN
bP
bPPion sous pression
bP
bP
bP
bP
bK
bR
bQ
bB
bN
bR
hgfedcba
Plans. ...Bxc3+ (Fou actif (mobilité 6) — 56 % des parties) ; ...cxd4 (Capture en d4, Occuper le centre — 30 % des parties) ; ...Ba5 (Clouer c3 — 8 % des parties) ; ...dxc4 (Capture en c4, Frapper le centre adverse — 6 % des parties).
Avantages
Faiblesses
Diagonale active
Plans
Partie
1946 Hastings4647 – Round 3 – Raizman, Maurice – 0-1 – Abrahams, Gerald – G10
1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 Bb4 5. e3 O-O 6. Bd3 c5 7. a3 cxd4 8. exd4 Bxc3+ 9. bxc3 dxc4 10. Bxc4 Qc7
1946 Hastings4647 – Round 8 – Gudmundsson, Gardar Vidir – 1/2-1/2 – Abrahams, Gerald – G33
1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 Bb4 5. e3 O-O 6. Bd3 c5 7. a3 cxd4 8. exd4 Bxc3+ 9. bxc3 dxc4 10. Bxc4 Qc7
1951 Hungary Ch – Round 1 – Szilagyi, Gyorgy Laszlo – 0-1 – Pogats, Jozsef Jr. – G36
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. a3 Bxc3+ 8. bxc3 dxc4 9. Bxc4 Qc7 10. Ba2 Nbd7
1955 Manhattan CC Ch 5556 – Round 1 – Owens, Benjamin – 0-1 – Bisguier, Arthur B – G2
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. a3 cxd4 8. exd4 dxc4 9. Bxc4 Bxc3+ 10. bxc3 Qc7
1957 Minsk zt – Round 9 – Petrosian, Tigran V – 1-0 – Luik, Helmuth – G58
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Nf3 O-O 6. Bd3 d5 7. a3 cxd4 8. exd4 Bxc3+ 9. bxc3 dxc4 10. Bxc4 Qc7
1957 Reggio Emilia ch ITA – Round 9 – Romani, Elio – 1-0 – Magrin, Antonio – G32
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. a3 cxd4 8. exd4 Bxc3+ 9. bxc3 dxc4 10. Bxc4 Qc7
1960 UKR Ch sf – Round 14 – Pogrebissky, Iosif – 0-1 – Novopashin, Arkady – G85
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. a3 dxc4 8. axb4 cxd4 9. Bxc4 dxc3 10. bxc3 Qxd1+
1961 Montevideo – Round 3 – Letelier Martner, Rene – 1-0 – Silva Nazzari, Roberto – G19
1. c4 Nf6 2. d4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 c5 6. Bd3 d5 7. a3 Bxc3+ 8. bxc3 dxc4 9. Bxc4 b6 10. Qe2 Bb7
1961 Moskou ZShK – Round 9 – Tolush, Alexander V – 1/2-1/2 – Olafsson, Fridrik – G42
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. a3 cxd4 8. exd4 Bxc3+ 9. bxc3 dxc4 10. Bxc4 Qc7
1961 Warsaw – Round ? – Podolsky, Horst – 0-1 – Tolush, Alexander V – G81
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 c5 6. Bd3 d5 7. a3 cxd4 8. exd4 Bxc3+ 9. bxc3 dxc4 10. Bxc4 Qc7
1964 Buenos Aires – Round 2 – Letelier Martner, Rene – 1/2-1/2 – Wexler, Bernardo – G19
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 c5 6. Bd3 d5 7. a3 Bxc3+ 8. bxc3 dxc4 9. Bxc4 b6 10. Bb2 Ba6
1964 Buenos Aires – Round 6 – Letelier Martner, Rene – 0-1 – Schweber, Samuel – G56
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Nf3 O-O 6. Bd3 d5 7. a3 dxc4 8. Bxc4 Ba5 9. O-O Nc6 10. Qe2 cxd4
1966 Clare Benedict Cup – Round 1 – Donner, Jan-Hein – 1/2-1/2 – Unzicker, Wolfgang – G1
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. a3 cxd4 8. exd4 Bxc3+ 9. bxc3 dxc4 10. Bxc4 Qe7
1968 Hoogovens – Round 1 – Korchnoi, Viktor – 1-0 – Padevsky, Nikola – G5
1. c4 Nf6 2. Nc3 e6 3. d4 Bb4 4. Nf3 c5 5. e3 O-O 6. Bd3 d5 7. a3 cxd4 8. axb4 dxc3 9. c5 b6 10. Qc2 Bb7
1968 Hoogovens – Round 1 – Korchnoi, Viktor – 1-0 – Padevsky, Nikola – G6
1. c4 Nf6 2. Nc3 e6 3. d4 Bb4 4. Nf3 c5 5. e3 O-O 6. Bd3 d5 7. a3 cxd4 8. axb4 dxc3 9. c5 b6 10. Qc2 Bb7
1969 Rhyl ch-BCF – Round 2 – Gavrilovic, Mikhail – 0-1 – Lees, David – G22
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. a3 Bxc3+ 8. bxc3 dxc4 9. Bxc4 Qc7 10. Be2 Nbd7
FTX Crypto Cup 2022 – Round 1.4 – Le, Quang Liem – 1/2-1/2 – Aronian, Levon – G13
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 c5 5. e3 O-O 6. Bd3 d5 7. a3 cxd4 8. axb4 dxc4 9. Bxc4 dxc3 10. Qc2 Qc7

E53b — Main Line (1946)
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nf3 d5 6.Bd3 c5 7.a3
Les coups candidats
7…Bxc3+ — 69.6% (291 parties)
Ambassadeurs : Tombolis, Christopher (3x), Jovancevic, Jovan (3x), Letelier Martner, Rene (2x), Sergeev, Nickolay (2x), Brodsky, Michail (2x), Harman, Kenneth B (2x), Groot, Peter J A (2x), Analiev, Dimitar (2x)
7…cxd4 — 21.3% (89 parties)
Ambassadeurs : Korchnoi, Viktor (2x), Padevsky, Nikola (2x), Alexander Tadala (2x), Borisenko-Belova, Valentina (2x), Bobotsov, Milko G (1x), Abanin, Vladimir (1x), Petrosian, Tigran V. (1x), Luik, Helmuth (1x)
7…Ba5 — 7.2% (30 parties)
Ambassadeurs : Cappello, Renato (2x), Hector, Jonny (2x), Piket, Joop (1x), Ree, Hans (1x), Bulatovic, Danilo (1x), Bulatovic, Drago (1x), Mortensen, Petter (1x), Saltzberg, Mitchell (1x)
7…dxc4 — 1.9% (8 parties)
Ambassadeurs : Letelier Martner, Rene (1x), Schweber, Samuel (1x), Pogrebissky, Iosif (1x), Novopashin, Arkady (1x), Martinez, Acosta Pedro Hernandez (1x), Clarizza, Jorge Enrique (1x), Schwarman, Mark M (1x), Dubisch, Ralph (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 7…Bxc3+ 7…cxd4 7…Ba5 7…dxc4
<1800 28 86% 11% 4%
1800-2200 165 73% 18% 7% 1%
2200-2600 141 67% 23% 9% 1%
2600+ 4 75% 25%
Évolution par décennie (% des parties)
Décennie N parties 7…Bxc3+ 7…cxd4 7…Ba5 7…dxc4
1950s 18 56% 44%
1960s 22 55% 32% 5% 9%
1970s 14 50% 21% 21% 7%
1980s 17 47% 35% 6% 12%
1990s 40 60% 25% 12% 2%
2000s 110 75% 20% 4% 2%
2010s 154 75% 18% 7%
2020s 43 77% 12% 12%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
7…Bxc3+ 75% 77% ▲ +2.1%
7…cxd4 18% 12% ▼ -6.6%
7…Ba5 7% 12% ▲ +4.5%
7…dxc4 0% 0% +0.0%
Joueurs célèbres
Champions du monde dans cette position
Carlsen, Magnus — 1 partie
Parties historiques
7…Bxc3+ — 69.6% (291 parties)
1951 — Szilagyi, Gyorgy Laszlo vs Pogats, Jozsef Jr. — 0-1 — Hungary ch
1952 — Wolstenholme, John vs Wilkinson, Bernard Landon — 1-0 — Bolton
1952 — Rometti, Nicola Barbatto vs Bergraser, Volf — 1/2-1/2 — Charleville Mezieres
1954 — Napolitano, Mario vs Aguayo, Cesar — 0-1 — Trieste
1955 — Newman, Richard vs Hooper, David — 0-1 — Bognor Regis
7…cxd4 — 21.3% (89 parties)
1955 — Owens, Benjamin vs Bisguier, Arthur B — 0-1 — ?
1956 — Bobotsov, Milko G vs Abanin, Vladimir — 0-1 — Uppsala
1956 — Catozzi, Henry vs Djurasevic, Bozidar — 1/2-1/2 — Vichy
1957 — Petrosian, Tigran V. vs Luik, Helmuth — 1-0 — Minsk zt
1957 — Converset, Juan Jose vs Eliskases, Erich — 0-1 — San Nikolas ARG
7…Ba5 — 7.2% (30 parties)
1969 — Piket, Joop vs Ree, Hans — 1-0 — KNSB tt
1971 — Bulatovic, Danilo vs Cappello, Renato — 0-1 — Imperia
1971 — Bulatovic, Drago vs Cappello, Renato — 0-1 — Imperia
1975 — Saltzberg, Mitchell vs Grossman, N. — 1-0 — New York, NY USA
1988 — Mortensen, Petter vs Hector, Jonny — 0-1 — Naestved open
7…dxc4 — 1.9% (8 parties)
1960 — Pogrebissky, Iosif vs Novopashin, Arkady — 0-1 — Kiev UKR
1964 — Letelier Martner, Rene vs Schweber, Samuel — 0-1 — Buenos Aires ARG
1970 — Machacek H vs Weiss, Michael — 0-1 — ?
1983 — Schwarman, Mark M vs Dubisch, Ralph — 1-0 — Seattle, WA USA
1984 — Martinez, Acosta Pedro Hernandez vs Clarizza, Jorge Enrique — 0-1 — ?

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