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	● 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

E53a — Nimzo-Indian: Main Line, 6…c5

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nf3 d5 6.Bd3 c5 * ○ Trait aux Blancs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plans. O-O (Mettre le roi en sécurité, connecter les tours — 97 % des parties) ; a3 (Préparer expansion aile dame — 2 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plans. ...Nc6 (Développer b8 — 44 % des parties) ; ...dxc4 (Capture en c4, Frapper le centre adverse — 35 % des parties) ; ...cxd4 (Capture en d4, Occuper le centre — 10 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Partie
1950 It Beverwijk NED – Round 8 – Hugot, Claude – 1/2-1/2 – Euwe, Max – G10 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 d5 5. e3 O-O 6. Bd3 c5 7. cxd5 exd5 8. O-O c4 9. Bc2 Bg4 10. Ne2 Nc6
1961 Graz 1st – Round 8 – Marthaler, Otto – 0-1 – Pachman, Ludek – G23 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. Qc2 cxd4 8. exd4 dxc4 9. Bxc4 Nbd7 10. O-O Nb6
1964 Harrachov 6465 – Round 2 – Bellin, Jana M – 0-1 – Augustin, Josef – G5 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. Bd2 b6 8. Qc2 Ba6 9. Ne2 dxc4 10. Bxc4 Bxd2+
1965 Zagreb – Round 4 – Antoshin, Vladimir S – 1/2-1/2 – Golombek, Harry – G48 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Nf3 O-O 6. Bd3 d5 7. cxd5 exd5 8. a3 Ba5 9. dxc5 Bxc3+ 10. bxc3 Nbd7
34. ECC Open 2018 – Round 6.6 – Mastrovasilis, Athanasios – 1/2-1/2 – Postny, Evgeny – G195 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 d5 5. Nf3 O-O 6. Bd3 c5 7. cxd5 cxd4 8. exd4 Nxd5 9. O-O Nc6 10. Bc2 Be7
4. Norway Chess 2016 – Round 3.1 – Harikrishna, Pentala – 1/2-1/2 – Topalov, Veselin – G11 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. cxd5 exd5 8. dxc5 Nbd7 9. Bd2 Nxc5 10. Be2 Ne6
42. Olympiad 2016 – Round 8.11 – Navara, David – 1/2-1/2 – Wojtaszek, Radoslaw – G542 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. cxd5 exd5 8. dxc5 Nbd7 9. Bd2 Nxc5 10. Be2 Ne6
FIDE World Cup 2015 – Round 3.4 – Le, Quang Liem – 0-1 – So, Wesley – G355 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. cxd5 exd5 8. dxc5 Nbd7 9. Bd2 Nxc5 10. Be2 Ba5
FTX Crypto Cup 2022 – Round 4.1 – Praggnanandhaa R – 1/2-1/2 – Aronian, Levon – G52 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. cxd5 cxd4 8. exd4 exd5 9. O-O Bg4 10. Bg5 Bxc3
FTX Crypto Cup 2022 – Round 4.3 – Firouzja, Alireza – 1-0 – Duda, Jacob – G59 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. Nf3 d5 7. cxd5 exd5 8. dxc5 Nbd7 9. Bd2 Nxc5 10. Be2 Ne6
GCT Blitz Paris 2021 – Round 10.2 – So, Wesley – 1/2-1/2 – Caruana, Fabiano – G46 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. cxd5 exd5 8. dxc5 Nbd7 9. Bd2 Nxc5 10. Be2 Bg4
GCT Rapid YourNextMove 2017 – Round 3.2 – Carlsen, Magnus – 0-1 – So, Wesley – G12 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 c5 6. Bd3 d5 7. cxd5 exd5 8. dxc5 Bg4 9. O-O Nbd7 10. Bd2 Bxf3
Global Chess League 2023 – Round 2.4 – Krush, Irina – 1/2-1/2 – Hou, Yifan(HLJ) – G23 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. cxd5 exd5 8. dxc5 Nbd7 9. Bd2 Nxc5 10. Be2 Ba5
Olympiad 2002 – Round 11 – Granda Zuniga, Julio E – 1-0 – Stefansson, Hannes – G366 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 c5 6. Bd3 d5 7. cxd5 exd5 8. a3 Bxc3+ 9. bxc3 Bg4 10. O-O Nbd7
Qatar Masters Open 2015 – Round 1.14 – Krush, Irina – 0-1 – Wojtaszek, Radoslaw – G6 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. cxd5 exd5 8. dxc5 Nbd7 9. Bd2 Nxc5 10. Be2 Ne6
Saint Louis Rapid 2021 – Round 8.4 – So, Wesley – 1/2-1/2 – Nakamura, Hikaru – G39 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. cxd5 exd5 8. dxc5 Nbd7 9. Bd2 Nxc5 10. Be2 Ne6
Ultimate Blitz Challenge 2016 – Round 3.2 – So, Wesley – 1-0 – Nakamura, Hikaru – G6 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. cxd5 cxd4 8. exd4 Nxd5 9. O-O Nc6 10. Bc2 Be7
Vugar Gashimov Mem 2017 – Round 7.1 – Harikrishna, Pentala – 1/2-1/2 – Wojtaszek, Radoslaw – G31 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. cxd5 exd5 8. dxc5 Nbd7 9. O-O Nxc5 10. Ne2 Bg4
World Blitz 2016 – Round 15.6 – Ivanchuk, Vasyl – 1-0 – Anand, Viswanathan – G619 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. e3 O-O 6. Bd3 c5 7. cxd5 Nxd5 8. O-O cxd4 9. exd4 Nc6 10. Bc2 Nf6
World Blitz 2021 – Round 10.45 – Riazantsev, Alexander – 1-0 – Sychev, Klementy – G607 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5 6. Bd3 c5 7. cxd5 exd5 8. dxc5 Nbd7 9. O-O Nxc5 10. Ne2 Nxd3
World Blitz 2023 – Round 18.47 – Rakhmanov, Aleksandr – 1-0 – Vasquez Schroeder, Rodrigo – G1045 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 c5 6. Bd3 d5 7. cxd5 cxd4 8. exd4 Nxd5 9. O-O Nc6 10. Qc2 h6

E53a — Main Line (1950)

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nf3 d5 6.Bd3 c5

Les coups candidats

7.O-O — 94.8% (17920 parties) →

Ambassadeurs : Donner, Jan-Hein (106x), Gligoric, Sofija (98x), Portisch, Lajos (97x), Taimanov, Mark (79x), Rapaka Samuel Paul (62x), Miguel, Nahuel (59x), Knaak, Rainer (59x), Korchnoi, Viktor (55x)

7.cxd5 — 2.8% (523 parties)

Ambassadeurs : Campani, Paolo (12x), Kolanek, Roman (8x), Levin, Ev (7x), Krush, Irina (6x), So, Wesley (6x), Bredenhof, Bo (5x), Smirnova, Ekaterina (5x), Abdisalimov, Abdimalik (5x)

7.a3 — 2.2% (419 parties) →

Ambassadeurs : Letelier Martner, Rene (3x), Alexander Tadala (3x), Tombolis, Christopher (3x), Jovancevic, Jovan (3x), Korchnoi, Viktor (2x), Padevsky, Nikola (2x), Borisenko-Belova, Valentina (2x), Cappello, Renato (2x)

7.Qc2 — 0.1% (16 parties)

Ambassadeurs : Marthaler, Otto (1x), Pachman, Ludek (1x), Snellmann (1x), Grafe, James (1x), Lorinczi, Pedro (1x), Wade, Robert G (1x), Kim, Sergey (1x), Elias, Sadoque Nascimento Jose (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	7.O-O	7.cxd5	7.a3	7.Qc2
<1800	776	94%	3%	4%	0%
1800-2200	5359	94%	3%	3%	0%
2200-2600	8227	95%	3%	2%	—
2600+	667	93%	6%	1%	—

Évolution par décennie (% des parties)

Décennie	N parties	7.O-O	7.cxd5	7.a3	7.Qc2
1950s	830	98%	0%	2%	—
1960s	1149	98%	0%	2%	0%
1970s	1083	98%	0%	1%	0%
1980s	948	98%	0%	2%	—
1990s	1696	96%	1%	2%	0%
2000s	4210	96%	1%	3%	0%
2010s	7741	95%	3%	2%	0%
2020s	1252	79%	17%	4%	0%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
7.O-O	95%	79%	▼ -15.9%
7.cxd5	3%	17%	▲ +14.4%
7.a3	2%	4%	▲ +1.5%
7.Qc2	0%	0%	+0.0%

Joueurs célèbres

Champions du monde dans cette position

Tal, Mikhail — 10 parties
Botvinnik, Mikhail — 10 parties
Karpov, Anatoly — 10 parties
Kramnik, Vladimir — 10 parties
Anand, Viswanathan — 10 parties
Hou, Yifan — 10 parties
Carlsen, Magnus — 9 parties
Kasparov, Garry — 8 parties
Smyslov, Vladimir — 7 parties
Ju, Wenjun — 7 parties
Karpov, Aleksandr — 4 parties

Parties historiques

7.O-O — 94.8% (17920 parties)

1950 — Opsahl, Kristoffer vs Lambert, Hans — 0-1 — Dubrovnik olm
1950 — Bondarevsky, Igor vs Sokolsky, Alexey — 1/2-1/2 — Moskou ch-URS
1950 — Alexander Tadala vs Sokolsky, Alexey — 1-0 — Moskou ch-URS
1950 — Gligoric, Sofija vs Eliskases, Erich — 1/2-1/2 — Mar del Plata ARG
1950 — Amaro, Lucas Ibrair vs Acoltzi Ruiz, Mariana — 1/2-1/2 — Mar del Plata ARG

7.cxd5 — 2.8% (523 parties)

1950 — Collet, Hugo vs Eken, Max — 1/2-1/2 — It Beverwijk NED
1957 — Kampenuss, Peteris vs Klavins, Janis — 0-1 — Riga LAT
1961 — Macek, Oldrich vs Brychta, Vladimir — 1-0 — Brno CZE
1965 — Abanin, Vladimir vs Golombek, Harry — 1/2-1/2 — Zagreb CRO
1970 — Segal, Alexandru Sorin vs Ungureanu, Emil — 1/2-1/2 — Bucharest ROU

7.a3 — 2.2% (419 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 — Owens, Benjamin vs Bisguier, Arthur B — 0-1 — ?

7.Qc2 — 0.1% (16 parties)

1961 — Marthaler, Otto vs Pachman, Ludek — 0-1 — Graz AUT
1965 — Snellmann vs Grafe, James — 0-1 — corr Baltic
1970 — Lorinczi, Pedro vs Wade, Robert G — 0-1 — Siegen GER
1995 — Kim, Sergey vs Elias, Sadoque Nascimento Jose — 1-0 — Sao Lourenco WYCF-U12b
1996 — Litterst, Reinhard vs Frey, Walter — 1-0 — Schloss Schney (21.06.-29.06)

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