E05 — E05 – 1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. g3 Be7 5. Bg2 O-O 6. O-O dxc4 7. ...

○ Trait aux Blancs

Ouverture — Centre semi-ouvert

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Atouts. Les Blancs s'appuient sur une majorité de pions à l'centre (2 contre 1), les cases fortes f4, e5 et g5, la paire de fous et la colonne semi-ouverte c.

Côté adverse. Le fou enfermé en c8.

En contrepartie. Plusieurs pièces dorment encore (le cavalier b1, le fou c1 et la tour a1).

Plans. Nc3 (Développer Nb1) ; Bg5 (Clouer Nf6) ; h3 (Empêcher ...Bg4) ; Tour sur colonne c.

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

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Atouts. Les Noirs s'appuient sur une majorité de pions à l'aile_dame (4 contre 2), la case forte d5, un avant-poste en d5, un fou actif en e7, la paire de fous et la colonne semi-ouverte d.

Côté adverse. Les fous enfermés en c1 et g2.

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) ; ...c6 (Rupture) ; ...c5 (Rupture).

Avantages

Faiblesses adverses

Diagonale active

Plans

+0.36 léger avantage blanc.

auto

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	● c4, ● c7
Pions isolés	—	—
Arriérés	—	—
Chaînes	● f2→g3, h2→g3	● f7→e6
Passés	—	—
Majorité	● centre 2v1	● aile_dame 4v2

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● f4 (2v0), ● e5 (2v0), ● g5 (2v0)	● d5 (3v0)
Cases faibles	—	—
Centre	● d4 (2v1), ● e5 (2v0)	● d5 (3v0), ● e4 (1v0)

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● c	● d

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Bg2	● Bg2 Enfermé (mob. 2)
Be7		● Be7 Actif (mob. 4)
Bc8		● Bc8 Non développé (mob. 1)
Paire de fous	● Oui	● Oui
Non développées	3 (b1, c1, a1)	3 (b8, c8, a8)

Sécurité du roi

	♔ Blancs	♚ Noirs
Statut	● Roqué	● Roqué
Droits de roque	—	—

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	semi-ouvert
Ruptures	● d4-d5, ● e2-e3	● …c7-c6, ● …c7-c5, ● …e6-e5

Partie
11. Norway Chess 2023 – Round 5.1 – Carlsen, Magnus – 1/2-1/2 – Giri, Anish – G21 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Be7 5. Bg2 O-O 6. O-O dxc4 7. Nc3 Nc6 8. e4 a6 9. h4 h6 10. Qe2 b5
1920 Gothenburg-B – Round 4 – Carls, Carl – 1-0 – Saemisch, Friedrich – G22 1. c4 e6 2. g3 d5 3. Bg2 Nf6 4. Nf3 Be7 5. O-O O-O 6. d4 dxc4 7. Qa4 c5 8. dxc5 Nbd7 9. Qxc4 Bxc5 10. Nc3 Qe7
1937 Hastings3738 – Round 2 – Mikenas, Vladas – 1-0 – Tylor, Theodore Henry – G6 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. Nf3 O-O 6. O-O dxc4 7. Nbd2 c5 8. Nxc4 Nc6 9. dxc5 Qxd1 10. Rxd1 Bxc5
1938 Noordwijk – Round 1 – Bogoljubow, Efim – 0-1 – Pirc, Vasja – G4 1. d4 d5 2. Nf3 e6 3. g3 Nf6 4. Bg2 Be7 5. c4 O-O 6. O-O dxc4 7. Nbd2 b5 8. Ne5 Nd5 9. e4 Nb6 10. d5 f6
1938 Noordwijk – Round 6 – Bogoljubow, Efim – 0-1 – Pirc, Vasja – G27 1. d4 d5 2. Nf3 e6 3. g3 Nf6 4. Bg2 Be7 5. c4 O-O 6. O-O dxc4 7. Nbd2 b5 8. Ne5 Nd5 9. e4 Nb6 10. d5 f6
1938 Trade Unions – Round 1 – Grechkin, Dmitry M – 1/2-1/2 – Zagoriansky, Evgeny – G20 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. O-O O-O 6. d4 dxc4 7. Qa4 Bd7 8. Qxc4 Bc6 9. Nc3 Nbd7 10. Qd3 Nd5
1939 Bad Oeynhausen ch-GER – Round 1 – Lokvenc, Josef – 1/2-1/2 – Heinicke, Herbert – G19 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. O-O O-O 6. d4 dxc4 7. Nbd2 c5 8. Nxc4 Nc6 9. dxc5 Bxc5 10. Qc2 Qe7
1950 Candidats Tournament – Round 16 – Lilienthal, Andor – 1/2-1/2 – Stahlberg, Gideon – G68 1. d4 d5 2. c4 e6 3. g3 Nf6 4. Bg2 Be7 5. Nf3 O-O 6. O-O dxc4 7. Nbd2 c5 8. dxc5 Nc6 9. Qc2 Bxc5 10. Nxc4 Qe7
1952 Miedzyzdroje – Round 2 – Milev, Zdravko – 1/2-1/2 – Koch, Berthold – G6 1. c4 Nf6 2. d4 e6 3. g3 d5 4. Bg2 Be7 5. Nf3 O-O 6. O-O dxc4 7. Nbd2 c5 8. Nxc4 Nc6 9. dxc5 Bxc5 10. Qb3 Qe7
1959 Alekhine Memorial – Round 6 – Olafsson, Fridrik – 1/2-1/2 – Filip, Marius Liviu – G30 1. c4 Nf6 2. g3 e6 3. Bg2 d5 4. Nf3 Be7 5. O-O O-O 6. d4 dxc4 7. Nbd2 b5 8. Ne5 Nd5 9. b3 c3 10. Nb1 Bb7
1960 CSR Ch – Round 17 – Ujtelky, Maximilian – 1-0 – Rejfir, Josef – G142 1. c4 e6 2. g3 d5 3. Bg2 Nf6 4. Nf3 Be7 5. O-O O-O 6. d4 dxc4 7. Nbd2 Nbd7 8. Nxc4 Nb6 9. Nxb6 axb6 10. Qc2 Nd5
1960 GBR Ch 47th – Round 10.5 – Abrahams, Gerald – 1-0 – Cafferty, Bernard – G86 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Nf3 Be7 6. O-O O-O 7. Nbd2 Bd7 8. Ne5 Nd5 9. Nxd7 Qxd7 10. Nxc4 Nc6
1962 Vrnjacka Banja – Round 1 – Udovcic, Mijo – 1/2-1/2 – Bradvarevic, Aleksandar – G4 1. c4 e6 2. g3 Nf6 3. Bg2 d5 4. Nf3 Be7 5. O-O O-O 6. d4 dxc4 7. Nbd2 c5 8. Nxc4 Nc6 9. dxc5 Bxc5 10. Bf4 Nd5
1962 Vrnjacka Banja – Round 3 – Rabar, Braslav – 1-0 – Ankerst, Mihael – G33 1. c4 Nf6 2. g3 e6 3. Bg2 d5 4. Nf3 Be7 5. O-O O-O 6. d4 dxc4 7. Nbd2 c5 8. Nxc4 Nc6 9. dxc5 Bxc5 10. a3 a5
1963 Budapest ch-HUN – Round 1 – Navarovszky, Laszlo – 0-1 – Portisch, Lajos – G13 1. c4 e6 2. g3 d5 3. Bg2 Nf6 4. Nf3 Be7 5. O-O O-O 6. d4 dxc4 7. Na3 Bxa3 8. bxa3 b5 9. Ne5 Nd5 10. Qc2 f6
1963 Europe Team Ch qual – Round 3.14 – Lohsse, Hans Peter – 1-0 – Lokvenc, Josef – G16 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. Nf3 O-O 6. O-O dxc4 7. Qa4 Bd7 8. Qxc4 Bc6 9. Nc3 Nbd7 10. Re1 Bxf3
1964 Tel Aviv olm prel – Round 6 – Deslauriers, J. – 0-1 – Vranesic, Zvonko – G207 1. c4 Nf6 2. g3 e6 3. Bg2 d5 4. Nf3 Be7 5. O-O O-O 6. d4 dxc4 7. Nc3 a6 8. Ne5 Nbd7 9. Nxc4 c6 10. a4 a5
1965 EU Ch U20 Niemeyer 3rd – Round 8 – Kolbak, Jens – 1-0 – Sibe, Jan – G6 1. d4 Nf6 2. Nf3 e6 3. g3 d5 4. Bg2 Be7 5. O-O O-O 6. c4 dxc4 7. Nbd2 c6 8. Nxc4 Nbd7 9. Qc2 Nb6 10. Nce5 Bd7
1965 POL Ch 22th – Round 1 – Doda, Zbigniew – 1/2-1/2 – Gasiorowski, Ryszard – G2 1. c4 Nf6 2. Nf3 e6 3. g3 Be7 4. Bg2 d5 5. O-O O-O 6. d4 dxc4 7. Nbd2 c5 8. Nxc4 Nc6 9. dxc5 Bxc5 10. Be3 Bxe3
1965 Tbilisi – Round 1 – Buslaev, Alexander – 1/2-1/2 – Fuchs, Reinhart – G4 1. c4 Nf6 2. Nf3 e6 3. g3 d5 4. Bg2 Be7 5. O-O O-O 6. d4 dxc4 7. Na3 c5 8. Nxc4 Nc6 9. dxc5 Bxc5 10. a3 Qe7
1966 Palma de Mallorca – Round 5 – Shamkovich, Leonid – 1/2-1/2 – Robatsch, Karl – G33 1. Nf3 d5 2. c4 e6 3. g3 Nf6 4. Bg2 Be7 5. O-O O-O 6. d4 dxc4 7. Nc3 Nd5 8. Ne5 Nb6 9. a4 a5 10. e4 Na6
1967 October Revolution 50 – Round 1 – Doda, Zbigniew – 1/2-1/2 – Udovcic, Mijo – G6 1. c4 Nf6 2. g3 e6 3. Bg2 d5 4. Nf3 Be7 5. O-O O-O 6. d4 dxc4 7. Nbd2 c5 8. Nxc4 Nc6 9. dxc5 Bxc5 10. Be3 Bxe3
1975 URS Team Ch – Round 2 – Alieva, Elmira – 1-0 – Rozlapa, Vija – G158 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Be7 5. Bg2 O-O 6. O-O dxc4 7. Nbd2 c5 8. Nxc4 Nc6 9. dxc5 Bxc5 10. Bg5 Qe7
82. Tata Steel GpA 2020 – Round 12.5 – Caruana, Fabiano – 1-0 – Duda, Jacob – G75 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. Nf3 O-O 6. O-O dxc4 7. Qa4 c6 8. Qxc4 b5 9. Qb3 Bb7 10. Rd1 Nbd7
84. Tata Steel Masters 2022 – Round 2.1 – Carlsen, Magnus – 1-0 – Giri, Anish – G8 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Be7 5. Bg2 O-O 6. O-O dxc4 7. Na3 Bxa3 8. bxa3 Bd7 9. a4 Bc6 10. Ba3 Re8
FIDE World Cup 2019 – Round 4.4 – Le, Quang Liem – 1/2-1/2 – Aronian, Levon – G384 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Be7 5. Bg2 O-O 6. O-O dxc4 7. Na3 Bxa3 8. bxa3 b5 9. a4 a6 10. Ba3 Re8
FIDE World Cup 2019 – Round 5.1 – Xiong, Jeffery – 1/2-1/2 – Radjabov, Teimour – G395 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. Nf3 O-O 6. O-O dxc4 7. Na3 Bxa3 8. bxa3 Bd7 9. Ne5 Bc6 10. Nxc6 Nxc6
Saint Louis Blitz 2018 – Round 18.1 – Caruana, Fabiano – 1/2-1/2 – Dominguez Perez, Leinier – G86 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 Be7 5. Bg2 O-O 6. O-O dxc4 7. a4 Nc6 8. a5 Rb8 9. Qc2 Nxd4 10. Nxd4 Qxd4
Saint Louis Blitz 2022 – Round 18.4 – Caruana, Fabiano – 1-0 – Mamedyarov, Shakhriyar – G89 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Be7 5. Bg2 O-O 6. O-O dxc4 7. Qa4 b6 8. Qxc4 Bb7 9. Bg5 h6 10. Bxf6 Bxf6
SuperUnited Blitz 2023 – Round 6.4 – Carlsen, Magnus – 1-0 – Nepomniachtchi, Ian – G29 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Be7 5. Bg2 O-O 6. O-O dxc4 7. Nc3 Nc6 8. e4 Rb8 9. Qe2 b5 10. Rd1 Nb4
World Blitz 2018 – Round 6.5 – Adly, Ahmed – 0-1 – Aronian, Levon – G372 1. Nf3 d5 2. g3 Nf6 3. Bg2 e6 4. O-O Be7 5. d4 O-O 6. c4 dxc4 7. Qa4 Qd5 8. Nc3 Qc6 9. Qc2 Qa6 10. Bg5 h6
World Blitz 2022 – Round 10.56 – Predke, Alexandr – 1-0 – Nguyen, Thai Dai Van – G546 1. Nf3 d5 2. g3 Nf6 3. Bg2 e6 4. c4 Be7 5. O-O O-O 6. d4 dxc4 7. Nc3 c5 8. dxc5 Nbd7 9. c6 bxc6 10. Nd4 Bb7
World Blitz 2023 – Round 13.22 – Van Foreest, Jorden – 0-1 – Nesterov, Arseniy – G742 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 Be7 5. Bg2 O-O 6. O-O dxc4 7. h4 Nc6 8. Na3 Bxa3 9. bxa3 Rb8 10. Bb2 b5
World Cup 1991 – Round 3 – Khalifman, Alexander – 1/2-1/2 – Portisch, Lajos – G20 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. Nf3 O-O 6. O-O dxc4 7. Na3 Bxa3 8. bxa3 Bd7 9. Ne5 Bc6 10. Nxc6 Nxc6

E05f — Open Classical

1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 dxc4 5.Nf3 Be7 6.O-O O-O

Eval: [+0.24]

Les coups candidats

7.Qc2 — 70.2% (19850 parties) →

Ambassadeurs : Beliavsky, Alexander G (49x), Rozentalis, Eduardas (43x), Karpov, Anatoly (38x), Pigusov, Evgeny (35x), Grischuk, Alexander (35x), Sosonko, Gennadi (34x), Mason, Ian J (33x), Khalifman, Alexander (33x)

7.Ne5 — 17.6% (4972 parties) →

Ambassadeurs : Campani, Paolo (21x), Hausner, Ivan (13x), Malakhatko, Vadim (13x), Szczepanski, Zbigniew (13x), Ludevid i Massana, Joan (13x), Ribli, Zoltan (11x), Szymczak, Zbigniew (10x), Ilyin, Igor (10x)

7.Qa4 — 6.3% (1783 parties)

Ambassadeurs : Hausner, Ivan (13x), Caruana, Fabiano (12x), Krivonosov, Oleg (9x), Kleymenova, Valeria (8x), Csom, Istvan (7x), Cernousek, Lukas (7x), Roeder, Matthias (7x), Pigusov, Evgeny (5x)

7.Na3 — 2.4% (687 parties)

Ambassadeurs : Krasenkow, Michal (15x), Adrian, Claude (8x), Romanishin, Oleg M (7x), Altan-Ulzii, Enkhtuul (7x), Kiss, Attila (6x), Klovans, Janis (5x), Gomez Fontal, Felix Manuel (5x), Troyke, Christian (4x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	7.Qc2	7.Ne5	7.Qa4	7.Na3
<1800	412	60%	25%	4%	2%
1800-2200	7947	66%	22%	6%	2%
2200-2600	16427	72%	16%	6%	3%
2600+	1520	79%	11%	8%	1%

Évolution par décennie (% des parties)

Décennie	N parties	7.Qc2	7.Ne5	7.Qa4	7.Na3
1920s	1	—	—	100%	—
1930s	12	33%	17%	17%	—
1940s	14	71%	7%	14%	—
1950s	29	48%	31%	7%	—
1960s	102	37%	31%	16%	3%
1970s	322	56%	30%	9%	1%
1980s	1331	65%	18%	6%	6%
1990s	2432	67%	17%	4%	6%
2000s	5078	74%	15%	5%	3%
2010s	12847	69%	21%	6%	1%
2020s	6104	74%	13%	8%	3%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
7.Qc2	69%	74%	▲ +4.7%
7.Ne5	21%	13%	▼ -7.3%
7.Qa4	6%	8%	▲ +1.7%
7.Na3	1%	3%	▲ +1.3%

Joueurs célèbres

Champions du monde dans cette position

Smyslov, Vladimir — 10 parties
Karpov, Anatoly — 10 parties
Karpov, Aleksandr — 10 parties
Anand, Viswanathan — 10 parties
Kramnik, Vladimir — 10 parties
Carlsen, Magnus — 10 parties
Ju, Wenjun — 10 parties
Hou, Yifan — 10 parties
Ding, Liren — 10 parties
Gukesh D — 10 parties
Tal, Mikhail — 7 parties
Kasparov, Garry — 7 parties
Botvinnik, Mikhail — 1 partie
Euwe, Max — 1 partie

Parties historiques

7.Qc2 — 70.2% (19850 parties)

1937 — Ragozin, Viacheslav vs Ilyin Zhenevsky, Alexander — 1-0 — Tbilisi ch-URS
1938 — Ragozin, Viacheslav vs Riumin, Nikolai — 1-0 — Moscow RUS
1939 — Landau, Salo vs Szabo, Laszlo — 1-0 — Amsterdam NED
1939 — Pelikán, Jiří vs Najdorf, Miguel — 1/2-1/2 — Buenos Aires ARG
1946 — Opocensky, Karel vs Golombek, Harry — 1-0 — London ENG

7.Ne5 — 17.6% (4972 parties)

1939 — Petrov, Vladimir S. vs Eliskases, Erich — 1/2-1/2 — Buenos Aires ARG
1939 — Petrov, Vladimir (ENG) vs Eliskases, Erich — 1/2-1/2 — Buenos Aires ARG
1940 — Crompton, Charles vs Levy, Mark — 1/2-1/2 — Toronto CAN
1950 — Glasberg, Norbert vs Anto, Hubert — 1-0 — Toronto CAN
1952 — Heinicke, Herbert vs Eisinger, Max Jr — 1-0 — Hagen

7.Qa4 — 6.3% (1783 parties)

1920 — Carls, Carl vs Saemisch, Friedrich — 1-0 — Goteborg SWE
1938 — Grechkin, Dmitry M vs Zagoriansky, Evgeny — 1/2-1/2 — Leningrad RUS
1939 — Stahlberg, Gideon vs Guimard, Carlos — 1-0 — Buenos Aires ARG
1942 — Rossetto, Hector vs Guimard, Carlos E — 1/2-1/2 — Buenos Aires ARG
1946 — Golombek, Harry vs List, Paul — 0-1 — Londen I

7.Na3 — 2.4% (687 parties)

1963 — Navarovszky, Laszlo vs Portisch, Lajos — 0-1 — Budapest ch-HUN
1964 — Sandor, Bela vs Bergsma, Alois — 1-0 — Hoogovens-B Beverwijk NED
1965 — Buslaev, Alexander vs Fuchs, Reinhart — 1/2-1/2 — Tbilisi GEO
1970 — Brueggemann, Joachim vs Espig, Lutz — 1/2-1/2 — Freiberg ch19-DDR
1974 — Vadasz, Laszlo vs Dely, Peter — 1/2-1/2 — Budapest HUN

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