Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	—	● c7→d6, f7→e6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● e4 (2v1), ● b5 (2v0), ● g5 (2v0)	—
Cases faibles	—	—
Centre	● e4 (2v1)	—

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bf1	● Bf1 Non développé (mob. 0)
Bd2	● Bd2 Actif (mob. 5)
Bb4		● Bb4 Actif (mob. 4)
Bc8		● Bc8 Non développé (mob. 1)
Paire de fous	● Oui	● Oui
Non développées	3 (● f1, ● a1, ● h1)	2 (● 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	mobile
Ruptures	● c4-c5, ● d4-d5	● …d6-d5, ● …e6-e5

E33g — Nimzo-Indian: Classical, Milner-Barry (Zurich), 6.Bd2 O-O

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 Nc6 5.Nf3 d6 6.Bd2 O-O * ○ Trait aux Blancs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plan principal. Jeu sur l'aile dame (a3 dans 94 % des parties).

Atouts. Les Blancs s'appuient sur un contrôle dominant de e4, b5 et g5 et un fou actif en d2.

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

Plans. a3 (Préparer expansion aile dame — 94 % des parties) ; e3 (Libérer Bf1, préparer Bd3 — 4 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plan principal. Attaque sur le roi adverse resté au centre.

Atouts. Les Noirs s'appuient sur un fou actif en b4.

Côté adverse. Le roi resté au centre.

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

Plans. ...Bxc3 (Clouer d2, Fou actif (mobilité 5) — 93 % des parties) ; ...e5 (Occuper le centre — 5 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Partie
1936 BCF Ch 29th – Round 9 – Cross, Alfred Rupert Neale – 0-1 – Winter, William – G20 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 d6 6. Bd2 O-O 7. a3 Bxc3 8. Bxc3 Re8 9. e3 e5 10. dxe5 dxe5
1936 Muenchen ol – Round 12 – Pokorny, Amos – 1-0 – Wojciechowski, Antoni – G33 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 O-O 6. Bd2 d6 7. a3 Bxc3 8. Bxc3 Qe7 9. g3 e5 10. d5 Nb8
1936 Trebitsch Memorial 19th – Round 10 – Keller, Hans – 1-0 – Glass, Eduard – G20 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 d6 6. Bd2 O-O 7. a3 Bxc3 8. Bxc3 a5 9. e4 e5 10. d5 Ne7
1936 Zandvoort – Round 7 – van Doesburgh, Gerrit Roelof Diederik – 1/2-1/2 – Tartakower, Savielly – G46 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 O-O 6. Bd2 d6 7. a3 Bxc3 8. Bxc3 Qe7 9. e3 e5 10. dxe5 dxe5
1937 Ostende – Round 8 – Fine, Reuben – 0-1 – Reynolds, Arthur – G36 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 O-O 6. Bd2 d6 7. a3 Bxc3 8. Bxc3 Re8 9. Rd1 Qe7 10. e3 e5
1937 Teplitz-Schoenau – Round 1 – Walter, Max – 0-1 – Becker, Albert – G2 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 d6 6. Bd2 O-O 7. a3 Bxc3 8. Bxc3 Re8 9. g3 e5 10. dxe5 Nxe5
1939 Bad Oeynhausen ch-GER – Round 11 – Rellstab, Ludwig – 1/2-1/2 – Lokvenc, Josef – G76 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 d6 6. Bd2 O-O 7. a3 Bxc3 8. Bxc3 Re8 9. e3 e5 10. dxe5 Nxe5
1939 Bad Oeynhausen ch-GER – Round 9 – Rellstab, Ludwig – 1/2-1/2 – Muller, Hans – G61 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 d6 6. Bd2 O-O 7. a3 Bxc3 8. Bxc3 Qe7 9. e3 e5 10. Be2 Bg4
1939 Buenos Aires ol f-A – Round 2 – Mikenas, Vladas – 1/2-1/2 – Eliskases, Erich – G28 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 d6 6. Bd2 O-O 7. a3 Bxc3 8. Bxc3 Qe7 9. g3 e5 10. d5 Nd8
1942 Munich – Round 1 – Hollwarth – 0-1 – Unzicker, Ferdinand, Dr. – G8 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 d6 6. Bd2 O-O 7. e3 Qe7 8. Be2 e5 9. a3 exd4 10. axb4 Nxb4
1943 Prague – Round 18 – Alekhine, Alexander – 1-0 – Pachman, Ludek – G145 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 d6 6. Bd2 O-O 7. a3 Bxc3 8. Bxc3 Re8 9. Rd1 Qe7 10. g3 e5
1945 Moscow Ch – Round 12 – Kamishov, Mikhail P – 1/2-1/2 – Liublinsky, Victor – G66 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 d6 6. Bd2 O-O 7. a3 Bxc3 8. Bxc3 Re8 9. e3 a5 10. Rd1 Qe7
1946 Groningen – Round 5 – Euwe, Max – 1/2-1/2 – Najdorf, Miguel – G27 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 d6 6. Bd2 O-O 7. a3 Bxc3 8. Bxc3 Re8 9. e3 e5 10. dxe5 Nxe5
1947 Parnu – Round 1 – Boleslavsky, Isaac – 1/2-1/2 – Renter, Raul – G20 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 d6 6. Bd2 O-O 7. a3 Bxc3 8. Bxc3 Qe7 9. b4 e5 10. dxe5 Nxe5
1947 Parnu – Round 1 – Boleslavsky, Isaac – 1/2-1/2 – Simagin, Vladimir – G18 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 d6 6. Bd2 O-O 7. a3 Bxc3 8. Bxc3 a5 9. e4 e5 10. dxe5 dxe5
1948 Buenos Aires/La Plata it – Round 1 – O'Kelly de Galway, Alberic – 1/2-1/2 – Najdorf, Miguel – G11 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 d6 6. Bd2 O-O 7. a3 Bxc3 8. Bxc3 Re8 9. e3 a5 10. Be2 Qe7
1948 GBR Ch 35th – Round 2 – Wood, Gabriel – 0-1 – Broadbent, Reginald – G5 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 d6 6. Bd2 O-O 7. a3 Bxc3 8. Bxc3 Qe7 9. b4 e5 10. dxe5 Nxe5
1948 Karlovy Vary – Round 6 – Foltys, Jan – 1/2-1/2 – Stulik, Vlastimil – G64 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 d6 6. Bd2 O-O 7. a3 Bxc3 8. Bxc3 a5 9. e4 Qe7 10. Bd3 e5
1948 Venice – Round 1 – Euwe, Max – 1/2-1/2 – Giustolisi, Alberto – G25 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 d6 6. Bd2 O-O 7. a3 Bxc3 8. Bxc3 Qe7 9. b4 e5 10. dxe5 Nxe5
1948 World Championship 18th – Round 20 – Euwe, Max – 0-1 – Reshevsky, Samuel – G6 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 d6 6. Bd2 O-O 7. a3 Bxc3 8. Bxc3 a5 9. e3 Qe7 10. Bd3 e5
1949 BRA Ch – Round ? – Cruz, Walter – 1-0 – De Freitas, Marcio Elisio – G13 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 O-O 6. Bd2 d6 7. a3 Bxc3 8. Bxc3 a5 9. e3 Qe7 10. Be2 e5
1949 US Open Omaha – Round 10 – Poschel, Paul – 1/2-1/2 – Santasiere, Anthony – G17 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 d6 6. Bd2 O-O 7. a3 Bxc3 8. Bxc3 Qe7 9. e3 e5 10. dxe5 dxe5
1950 Amsterdam – Round 4 – Kottnauer, Cenek – 1/2-1/2 – Reshevsky, Samuel – G58 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 d6 6. Bd2 O-O 7. a3 Bxc3 8. Bxc3 Qe7 9. e3 e5 10. dxe5 dxe5
1956 GDR Ch – Round 10 – Knothe, Karl – 0-1 – Bertholdt, Dieter – G14 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 d6 6. Bd2 O-O 7. a3 Bxc3 8. Bxc3 Re8 9. e3 e5 10. dxe5 dxe5
1959 Candidates Tournament women – Round 6 – Keller-Hermann, Edith – 1-0 – Gresser, Gisela Kahn – G23 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 d6 6. Bd2 O-O 7. a3 Bxc3 8. Bxc3 Qe7 9. e3 e5 10. d5 Nb8
1963 Nt Helmbrechts GER – Round 3 – Gerusel, Mathias – 1-0 – Lohsse, Hans Peter – G11 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 O-O 5. Nf3 d6 6. Bd2 Nc6 7. a3 Bxc3 8. Bxc3 Re8 9. Rd1 Qe7 10. e3 e5
1967 DDR Ch 16th – Round 17 – Starck, Bodo – 1-0 – Schoeneberg, Manfred – G89 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 d6 6. Bd2 O-O 7. a3 Bxc3 8. Bxc3 Qe7 9. b4 e5 10. dxe5 Nxe5
1968 HUN-URS – Round ? – Doroshkievich, Vladimir K – 0-1 – Barczay, Laszlo – G4 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 d6 6. Bd2 O-O 7. a3 Bxc3 8. Bxc3 a5 9. e4 d5 10. e5 Ne4
1968 Hungary – Round 1 – Pogats, Jozsef Jr. – 1/2-1/2 – Ahmed Nagy, Shady – G52 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 d6 6. Bd2 O-O 7. a3 Bxc3 8. Bxc3 Qe7 9. g3 a5 10. Bg2 a4
1968 Southend – Round 1 – Whiteley, Andrew Jonathan – 0-1 – Keene, Raymond D – G6 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 d6 6. Bd2 O-O 7. a3 Bxc3 8. Bxc3 Re8 9. e3 a5 10. Bd3 e5
22. ECU Club Cup 2006 – Round 4 – Korchnoi, Viktor – 1-0 – Pilgaard, Kim – G81 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 d6 6. Bd2 O-O 7. a3 Bxc3 8. Bxc3 Qe7 9. h3 e5 10. d5 Nd8
4. Euwe Memorial 1990 – Round 3 – Gurevich, Mikhail – 1-0 – Timman, Jan H – G3 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 d6 6. Bd2 O-O 7. a3 Bxc3 8. Bxc3 Qe7 9. g3 e5 10. d5 Nd8
GMA 2004 – Round 9 – Bareev, Evgeny – 0-1 – Timman, Jan H – G54 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 d6 6. Bd2 O-O 7. a3 Bxc3 8. Bxc3 Re8 9. Rd1 Qe7 10. b4 e5
World Blitz 2022 – Round 19.79 – Shishkov, Aleksandar – 0-1 – Bologan, Victor – G1037 1. d4 Nf6 2. c4 Nc6 3. Nf3 e6 4. Nc3 Bb4 5. Qc2 d6 6. Bd2 O-O 7. a3 Bxc3 8. Bxc3 Qe7 9. e3 e5 10. dxe5 dxe5

E33g — Classical, Milner-Barry (Zurich) (1936)

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 Nc6 5.Nf3 d6 6.Bd2 O-O

Les coups candidats

7.a3 — 94.4% (994 parties)

Ambassadeurs : Heinemann, Thies (8x), Winants, Luc (5x), Kozlowski, Waldemar (5x), Hecht, Hans-Joachim (4x), Palliser, Richard J D (4x), Hofstetter, Hans-Joachim, Dr. (4x), Belezky, Alexander (4x), Balazs, Gabor (4x)

7.e3 — 3.2% (34 parties)

Ambassadeurs : Vodicka, Milan (3x), Klingen, Mary (1x), Haahr, Merete (1x), Harris, Derek J.E. (1x), Van Tilbury, Craig (1x), Westerlund, Berndt (1x), Hassan, Bill (1x), Marcussi, Bartolome J (1x)

7.e4 — 1.2% (13 parties)

Ambassadeurs : Brontz, Alexander (2x), Morais, Andre Marcos (1x), De Macedo, Carlos Alberto (1x), Solin, Niclas (1x), Jovan, Romuald (1x), Berkes, Ferenc (1x), Harpur, Colin A (1x), Scannell, Stephen P. (1x)

7.O-O-O — 0.7% (7 parties)

Ambassadeurs : Oger, Claude (1x), Couturier, Francois (1x), Terzic, Safet (1x), Bayer, Bernhard (1x), Popovics, Adam (1x), Toth, Lili Dr. (1x), Cazzaniga, Walter (1x), Vancini, Edoardo (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	7.a3	7.e3	7.e4	7.O-O-O
<1800	33	79%	18%	—	—
1800-2200	345	93%	5%	1%	1%
2200-2600	573	95%	2%	1%	1%
2600+	30	100%	—	—	—

Évolution par décennie (% des parties)

Décennie	N parties	7.a3	7.e3	7.e4	7.O-O-O
1950s	15	100%	—	—	—
1960s	7	100%	—	—	—
1970s	14	93%	7%	—	—
1980s	8	88%	12%	—	—
1990s	61	95%	3%	2%	—
2000s	286	92%	3%	3%	1%
2010s	525	95%	3%	1%	1%
2020s	137	97%	3%	—	—

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
7.a3	95%	97%	▲ +2.4%
7.e3	3%	3%	-0.3%
7.e4	1%	0%	▼ -0.8%
7.O-O-O	1%	0%	▼ -0.6%

Joueurs célèbres

Champions du monde dans cette position

Kramnik, Vladimir — 1 partie

Parties historiques

7.a3 — 94.4% (994 parties)

1950 — Kottnauer, Cenek vs Rapaka Samuel Paul — 1/2-1/2 — Amsterdam NED
1951 — Hanks, John vs Baay, Jacob — 1-0 — Brisbane AUS
1951 — Bosch van Rosenthal, Edzard vs Kieninger, Georg — 1/2-1/2 — Duesseldorf GER
1952 — Eken, Max vs Kramer, Haije — 1-0 — Amsterdam NED
1952 — Eken, Max vs Kramer, Hanspeter — 1-0 — Amsterdam NED

7.e3 — 3.2% (34 parties)

1973 — Klingen, Mary vs Haahr, Merete — 1-0 — Ribe DEN
1982 — Harris, Derek J.E. vs Van Tilbury, Craig — 1/2-1/2 — Luzern olm
1991 — Marcussi, Bartolome J vs Bronstein, Luis Marcos — 0-1 — Buenos Aires ARG
1999 — Westerlund, Berndt vs Hassan, Bill — 1-0 — Swiss-212.1 IECC email
2000 — Singer, Imad vs Hariri, Nizar — 0-1 — Beirut LIB

7.e4 — 1.2% (13 parties)

1993 — Morais, Andre Marcos vs De Macedo, Carlos Alberto — 0-1 — ?
2000 — Jovan, Romuald vs Berkes, Ferenc — 0-1 — Zalakaros
2003 — Harpur, Colin A vs Scannell, Stephen P. — 0-1 — ?
2004 — Brontz, Alexander vs Solin, Niclas — 1/2-1/2 — Goteborg SWE
2004 — Bourassa, Andre vs Laflamme, Simon — 0-1 — Quebec CAN

7.O-O-O — 0.7% (7 parties)

2005 — Oger, Claude vs Couturier, Francois — 1/2-1/2 — Elancourt FRA
2007 — Terzic, Safet vs Bayer, Bernhard — 1/2-1/2 — Bayern
2007 — Popovics, Adam vs Toth, Lili Dr. — 0-1 — Budapest HUN
2007 — Cazzaniga, Walter vs Vancini, Edoardo — 0-1 — Gorgonzola
2010 — Efimov, Igor vs Arnaudov, G. Petar — 0-1 — ?

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