Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● f2→e3, e3→d4	● a7→b6, c7→b6, d7→e6, f7→e6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● b5 (2v0)	—
Cases faibles	—	—
Centre	● d4 (2v0), ● e5 (1v0)	—

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 1)
Bf1	● Bf1 Non développé (mob. 2)
Bb4		● Bb4 Actif (mob. 7)
Bc8		● Bc8 Non développé (mob. 2)
Paire de fous	● Oui	● Oui
Clouages	● knight c3	—
Non développées	5 (● g1, ● 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	mobile
Ruptures	● c4-c5, ● d4-d5	● …c7-c5, ● …d7-d5, ● …e6-e5

E43a — Nimzo-Indian: Nimzowitsch (Fischer) Variation

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 b6 * ○ Trait aux Blancs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plans. Ne2 (Développer g1 — 57 % des parties) ; Bd3 (Fou actif (mobilité 8), Développer f1 — 30 % des parties) ; Nf3 (Développer g1 — 6 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plans. ...Bb7 (Fianchetto, fou sur la grande diagonale — 52 % des parties) ; ...Ba6 (Développer c8 — 20 % des parties) ; ...Ne4 (Cavalier centralisé en e4 — 12 % des parties) ; ...c5 (Frapper le centre adverse — 10 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Partie
1926 Semmering – Round 1 – Reti, Richard – 1-0 – Gilg, Carl – G31 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Bd2 Bb7 6. Nf3 c5 7. dxc5 Bxc5 8. Bd3 O-O 9. O-O d5 10. Qe2 dxc4
1930 Hamburg GER – Round 10 – Duchamp, Marcel – 1/2-1/2 – Rejfir, Josef – G20 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Qf3 Nc6 6. Bd2 Bb7 7. Qg3 O-O 8. Bd3 d5 9. cxd5 exd5 10. Nge2 Bd6
1931 Blitz Match – Round 7 – Havasi, Kornel – 1-0 – Van den Bosch, Johannes – G9 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Qf3 Nc6 6. Ne2 O-O 7. a3 Be7 8. Ng3 Bb7 9. Qd1 d5 10. cxd5 exd5
1931 Trebitsch mem14 – Round 3 – Mueller, Hans – 1-0 – Metanomski, Leonhard – G6 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. a3 Bxc3+ 6. bxc3 Bb7 7. Nf3 O-O 8. Bd3 d6 9. Qc2 Nbd7 10. O-O e5
1931 Trebitsch mem14 – Round 7 – Kunert, Franz – 1-0 – Lokvenc, Josef – G23 1. c4 Nf6 2. Nc3 e6 3. d4 Bb4 4. e3 b6 5. Be2 Bb7 6. Bf3 Nc6 7. Ne2 O-O 8. O-O Rb8 9. e4 e5 10. Nd5 Be7
1936 New York ch-USA – Round 11 – Treysman, G. – 1-0 – Kashdan, Isaac – G32 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Be2 Ne4 6. Qc2 Nxc3 7. bxc3 Be7 8. Nf3 O-O 9. Bd3 h6 10. Be4 c6
1938 Argentina – Round 10 – Grau, Roberto G – 1/2-1/2 – Nogues Acuna, Alejandro – G47 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Qc2 Bb7 6. Nf3 O-O 7. Bd3 d5 8. cxd5 exd5 9. O-O c5 10. a3 Bxc3
1939 Leningrad/Moscow – Round 5 – Alatortsev, Vladimir N. – 1/2-1/2 – Kan, Ilya A – G35 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Qf3 Nc6 6. Bd2 Bb7 7. Qg3 O-O 8. Bd3 d5 9. cxd5 exd5 10. Nge2 Bd6
1942 Moscow Ch – Round 1 – Zagoriansky, Evgeny – 1-0 – Shcherbakov, Vitaly – G24 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Be2 Bb7 6. Bf3 Qc8 7. Qb3 Nc6 8. Ne2 Be7 9. Bxc6 Bxc6 10. d5 Bb7
1945 URS-sf – Round 3 – Zagoriansky, Evgeny – 1-0 – Bronstein, David I – G5 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Be2 Bb7 6. Bf3 Bxf3 7. Nxf3 Bxc3+ 8. bxc3 Ne4 9. a4 Nc6 10. Ba3 f5
1946 Mar del Plata – Round 1 – Reinhardt, Enrique – 0-1 – Corte, Cesar J – G11 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Qb3 c5 6. Nf3 O-O 7. Be2 Bb7 8. O-O Nc6 9. Rd1 cxd4 10. Nxd4 Qe7
1946 POL Ch – Round 21 – Gadalinski, Jan – 1/2-1/2 – Sliwa, Bogdan – G121 1. d4 Nf6 2. c4 e6 3. e3 b6 4. Nc3 Bb4 5. a3 Bxc3+ 6. bxc3 d5 7. a4 c5 8. Ba3 Qc7 9. cxd5 exd5 10. Nf3 O-O
1946 USA Ch New York, NY USA – Round 1 – Kashdan, Isaac – 1/2-1/2 – Santasiere, Anthony – G17 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Be2 Bb7 6. Bf3 Ne4 7. Qc2 Bxc3+ 8. bxc3 f5 9. Ne2 O-O 10. O-O d6
1948 Bad Gastein – Round 3 – Canal, Esteban – 1-0 – Platt, Josef – G18 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Qf3 d5 6. Ne2 Bb7 7. a3 Be7 8. Nf4 c6 9. Bd3 Ba6 10. b3 g5
1948 Bad Nauheim – Round 1 – Roedl, Ludwig – 1/2-1/2 – Rautenberg, Wilhelm – G11 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. a3 Bxc3+ 6. bxc3 Bb7 7. Nf3 O-O 8. Bd3 Ne4 9. O-O f5 10. Qc2 d6
1949 URS Ch, semi final – Round 13 – Aratovsky, Nikolay – 1-0 – Arulaid, Alexander – G94 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. a3 Bxc3+ 6. bxc3 Ba6 7. Bd3 d5 8. cxd5 Bxd3 9. Qxd3 exd5 10. Bb2 c5
1950 Dubrovnik olm – Round 15 – Devos, Paul – 1/2-1/2 – Bergkvist, Nils – G223 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. f3 Bb7 6. Ne2 Nh5 7. Kf2 f5 8. g3 O-O 9. Bg2 Be7 10. Rf1 Nf6
1951 URS Ch sf – Round 13 – Taimanov, Mark E – 1-0 – Estrin, Yakov – G18 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. a3 Bxc3+ 6. bxc3 Ba6 7. Bd3 Nc6 8. e4 e5 9. f4 exd4 10. e5 O-O
1953 Candidats Tournament – Round 28 – Gligorić, Svetozar – 0-1 – Keres, Paul – G185 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. a3 Bxc3+ 6. bxc3 Bb7 7. f3 Nc6 8. e4 d6 9. Bd3 Na5 10. Ne2 Qd7
1955 URS Ch sf – Round 14 – Tolush, Alexander V – 0-1 – Estrin, Yakov – G24 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Qf3 Nc6 6. Bd3 Ba6 7. Bd2 Na5 8. Qe2 d5 9. cxd5 Bxd3 10. Qxd3 Bxc3
1957 FRG Ch Bad Neuenahr – Round 7 – Hodakowsky, Georg – 0-1 – Lehmann, Heinz – G22 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. a3 Bxc3+ 6. bxc3 Bb7 7. Ne2 Nc6 8. Ng3 Na5 9. Bd3 Bxg2 10. Rg1 Bb7
1962 URS Team Ch – Round 1 – Mikenas, Vladas – 0-1 – Spassky, B. – G32 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Qf3 d5 6. Bd3 Ba6 7. Bd2 c5 8. dxc5 Nbd7 9. Be2 Bxc4 10. cxb6 O-O
1966 Ch (Men) Budapest HUN – Round 8 – Gasztonyi, Endre – 1-0 – Toth, Bela – G11 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Bd2 Bb7 6. Nf3 Bxc3 7. Bxc3 Ne4 8. Rc1 O-O 9. Bd3 f5 10. O-O d6
1967 Harrachov – Round 1 – Kuzmin, Gennadiy – 1-0 – Neukirch, Detlef – G19 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Qf3 d5 6. Bd2 Bb7 7. Bd3 Nbd7 8. cxd5 exd5 9. Nge2 O-O 10. O-O Ne4
Buenos Aires olm 1978 – Round 1 – Korchnoi, Viktor – 1/2-1/2 – Hamann, Svend – G13 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. f3 O-O 6. e4 Nc6 7. Ne2 Ba6 8. a3 Be7 9. Ng3 Ne8 10. b4 Bb7
FIDE World Rapid 2014 – Round 10.35 – Milov, Vadim – 1-0 – Amin, Bassem – G235 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. f3 c5 6. d5 O-O 7. e4 Re8 8. Ne2 exd5 9. cxd5 Bb7 10. Kf2 d6
World Rapid 2016 – Round 7.11 – Riazantsev, Alexander – 0-1 – Akopian, Vladimir – G250 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Bd2 Bb7 6. Nf3 O-O 7. Bd3 d6 8. Qc2 c5 9. a3 Bxc3 10. Bxc3 cxd4

E43a — St. Petersburg Variation (1926)

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 b6

Les coups candidats

5.Ne2 — 57.0% (8113 parties) →

Ambassadeurs : Donner, Jan-Hein (30x), Vaisser, Anatoli (30x), Knaak, Rainer (30x), Korchnoi, Viktor (27x), De Firmian, Nick (26x), Cafferty, Bernard (22x), Ward, Chris G (19x), Hoi, Carsten (19x)

5.Bd3 — 30.4% (4335 parties) →

Ambassadeurs : Gligoric, Sofija (26x), Georgiev, Vladimir (22x), Zsinka, Laszlo (16x), Muir, Andrew J (16x), Lukacs, Peter (14x), Portisch, Ferenc (12x), Inkiov, Ventzislav (12x), Bisguier, Arthur B (9x)

5.Nf3 — 6.5% (925 parties) →

Ambassadeurs : Csom, Istvan (6x), De Coverly, Roger D (5x), Cafferty, Bernard (4x), Cardili, Mariano (4x), Keres, Paul Petrovich (3x), Minev, Nikolay N (3x), Zhang, Jasmine Haomo (3x), Zavodny, Zdenek (2x)

5.Bd2 — 2.0% (283 parties)

Ambassadeurs : Yu, Jiangwei (7x), Kekki, Petri (5x), Chanda, Sandipan (4x), Grebnev, Aleksey (4x), Kumar, Nikhil (3x), Visakh N R (3x), Kunz, Konstantin (2x), Hurme, Harri (2x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	5.Ne2	5.Bd3	5.Nf3	5.Bd2
<1800	540	45%	36%	11%	4%
1800-2200	4733	53%	32%	9%	2%
2200-2600	6944	62%	28%	4%	2%
2600+	227	63%	26%	4%	3%

Évolution par décennie (% des parties)

Décennie	N parties	5.Ne2	5.Bd3	5.Nf3	5.Bd2
1950s	219	62%	28%	5%	—
1960s	364	53%	32%	12%	0%
1970s	623	58%	33%	8%	0%
1980s	1044	64%	29%	5%	0%
1990s	1968	53%	36%	6%	0%
2000s	3351	51%	35%	7%	1%
2010s	4879	60%	28%	6%	2%
2020s	1794	60%	23%	5%	9%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
5.Ne2	60%	60%	+0.1%
5.Bd3	28%	23%	▼ -5.6%
5.Nf3	6%	5%	▼ -1.2%
5.Bd2	2%	9%	▲ +7.9%

Joueurs célèbres

Champions du monde dans cette position

Botvinnik, Mikhail — 10 parties
Ju, Wenjun — 4 parties
Kasparov, Garry — 3 parties
Carlsen, Magnus — 3 parties
Tal, Mikhail — 2 parties
Smyslov, Vladimir — 1 partie
Karpov, Anatoly — 1 partie
Kramnik, Vladimir — 1 partie

Parties historiques

5.Ne2 — 57.0% (8113 parties)

1950 — Collins Justin vs Jackson, Oliver A — 1-0 — New Jersey
1950 — Kottnauer, Cenek vs Dimitrov Petar — 1-0 — CSR-BUL Prague CZE
1950 — Bondarevsky, Igor vs Kan, Ilya A — 1-0 — Leningrad RUS
1950 — Siegel, Paul vs Troeger, Paul — 0-1 — FRG-ch Bad Pyrmont GER
1951 — Moiseev, Oleg vs Novotelnov, Nikolai — 1-0 — Moskou ch-URS

5.Bd3 — 30.4% (4335 parties)

1950 — Borisenko, Georgy K vs Alatortsev, Vladimir N. — 0-1 — Moskou ch-URS
1950 — Stenborg, Ake vs Crepeaux, Robert — 1-0 — Dubrovnik CRO
1950 — Belova, Valentina M vs Bykova, Elizaveta — 1/2-1/2 — Moscow RUS
1950 — Staldi, Cherubino vs Giustolisi, Alberto — 1/2-1/2 — Sorrento ch ITA
1951 — Pinkus, Albert vs Santasiere, Anthony — 0-1 — New York ch-USA

5.Nf3 — 6.5% (925 parties)

1951 — Petrosian, Tigran A. vs Kopylov, Nazar — 0-1 — Moskou ch-URS
1952 — Rebizzo, Cayetano vs Rodriguez Camio, A. — 1-0 — Rosario ARG
1952 — Udovcic, Mijo vs Toran Albero, Roman — 1-0 — Zurich SUI
1953 — Doe, Raymond vs Fielding, Gerald — 0-1 — Winnipeg CAN
1953 — Minev, Nikolay N vs Dimitrov, Krastjo — 1-0 — Sofia BUL

5.Bd2 — 2.0% (283 parties)

1966 — Gasztonyi, Endre vs Toth, Bela — 1-0 — ?
1972 — Figueirido, Mario vs Kanko, Ilkka — 0-1 — Skopje ol (Men) fin-C
1978 — Scholz, Guillermo vs Monier, Raul — 1/2-1/2 — Buenos Aires olm
1987 — Hoffmann, Michael vs Winants, Luc — 1/2-1/2 — it Ostende Belgium
1988 — von Saldern, Ruediger vs Martin, Andrew D — 1/2-1/2 — Guernsey GCI

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