A25q — English: Closed

1.c4 e5 2.Nc3 Nc6 3.g3 f5 4.Bg2 Nf6 5.d3 * ● Trait aux Noirs

Ouverture — Centre semi-ouvert

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

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Atouts. Les Blancs s'appuient sur les cases fortes b5 et d5, un fou actif en g2 et la paire de fous.

Côté adverse. Les fous enfermés en c8 et f8 et le roi resté au centre.

En contrepartie. Le roi n'est pas encore à l'abri et plusieurs pièces dorment encore (le cavalier g1, le fou c1 et les tours a1 et h1).

Plans. O-O (Mettre le roi en sécurité, connecter les tours) ; Nf3 (Développer Ng1) ; Bg5 (Clouer Nf6).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

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Atouts. Les Noirs s'appuient sur les cases fortes b4, d4 et g4, des avant-postes en d4 et g4 et la paire de fous.

Côté adverse. Le fou enfermé en c1 et le roi resté au centre.

En contrepartie. Le roi n'est pas encore à l'abri et plusieurs pièces dorment encore (les fous c8 et f8 et les tours a8 et h8).

Plans. O-O (Mettre le roi en sécurité, connecter les tours) ; ...d6 (Libérer Bc8) ; ...Be7 (Développer Bf8) ; ...d5 (Rupture) ; ...e4 (Rupture).

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● e2→d3, f2→g3, h2→g3, d3→c4	—
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● b5 (2v0), ● d5 (3v1)	● b4 (2v0), ● d4 (2v0), ● g4 (2v0)
Cases faibles	—	—
Centre	● d5 (3v1), ● e4 (3v2)	● d4 (2v0), ● e5 (1v0)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Bg2	● Bg2 Actif (mob. 6)
Bc8		● Bc8 Non développé (mob. 0)
Bf8		● Bf8 Non développé (mob. 5)
Paire de fous	● Oui	● Oui
Non développées	4 (g1, c1, a1, h1)	4 (c8, f8, 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	semi-ouvert
Ruptures	● c4-c5, ● d3-d4, ● e2-e3, ● f2-f3	● …d7-d6, ● …d7-d5, ● …e5-e4, ● …f5-f4

Partie
1935 Margate – Round 6 – Thomas, George Alan – 1/2-1/2 – Mieses, Jacques – G29 1. c4 e5 2. Nc3 Nc6 3. g3 f5 4. d3 Nf6 5. Bg2 Bb4 6. Bd2 Qe7 7. e3 O-O 8. Nge2 d6 9. O-O Bxc3 10. Bxc3 Be6
1936 Olympiad (unofficial) – Round 4 – Lundin, Erik – 1/2-1/2 – Ahues, Carl – G27 1. c4 e5 2. Nc3 Nc6 3. g3 f5 4. Bg2 Nf6 5. d3 Bb4 6. Nf3 O-O 7. O-O Bxc3 8. bxc3 d6 9. Rb1 Qe8 10. c5 d5
1939 Bad Elster – Round 7 – Roess, L. – 1/2-1/2 – Koch, Berthold – G18 1. c4 e5 2. g3 Nc6 3. Bg2 f5 4. Nc3 Nf6 5. d3 Bb4 6. Nh3 O-O 7. O-O Bxc3 8. bxc3 d6 9. Rb1 h6 10. d4 e4
1941 Krakow/Warsaw – Round 10 – Carls, Carl – 0-1 – Bogoljubow, Efim – G10 1. c4 e5 2. Nc3 f5 3. g3 Nf6 4. Bg2 Nc6 5. d3 Bc5 6. e3 d6 7. Nge2 O-O 8. O-O a6 9. a3 Ba7 10. b4 Qe8
1946 Hastings4647 – Round 6 – Golombek, Harry – 1/2-1/2 – Tartakower, Savielly – G24 1. c4 e5 2. Nc3 Nc6 3. g3 f5 4. Bg2 Nf6 5. d3 Be7 6. Nf3 O-O 7. O-O d6 8. Nd5 Kh8 9. a3 Be6 10. Nxe7 Qxe7
1948 South Fallsburg ch-USA – Round 1 – Rubinow, Sol – 0-1 – Steiner, Heinrich Jun. – G1 1. c4 e5 2. Nc3 Nc6 3. g3 f5 4. Bg2 Nf6 5. d3 Be7 6. Nh3 O-O 7. O-O Qe8 8. f4 Bc5+ 9. Kh1 d6 10. Na4 e4
1949 US Open Omaha – Round 7 – Evans, Larry M – 1-0 – Kramer, George – G10 1. c4 e5 2. Nc3 Nc6 3. g3 f5 4. Bg2 Nf6 5. d3 Bc5 6. a3 a5 7. e3 O-O 8. Nge2 Ba7 9. O-O Ne7 10. b4 c6
1950 Amsterdam – Round 1 – Pirc, Vasja – 0-1 – Tartakower, Savielly – G1 1. c4 e5 2. Nc3 Nc6 3. g3 f5 4. Bg2 Nf6 5. d3 Be7 6. Nf3 O-O 7. O-O d6 8. Rb1 a5 9. Nd5 Kh8 10. Ne1 Bd7
1951 Bad Pyrmont zt – Round 15 – Golombek, Harry – 1/2-1/2 – Bogoljubow, Efim – G12 1. c4 f5 2. Nc3 Nf6 3. g3 e5 4. Bg2 Nc6 5. d3 g6 6. Nh3 Bg7 7. O-O d6 8. f4 O-O 9. Bd2 Nd4 10. e3 Ne6
1952 POL-ch10 – Round 21 – Gawlikowski, Stanislaw – 1/2-1/2 – Wozniak, Kazimierz – G151 1. c4 e5 2. Nc3 f5 3. g3 Nf6 4. Bg2 Nc6 5. d3 Be7 6. e3 O-O 7. Nge2 d6 8. b3 Be6 9. d4 Bd7 10. O-O a6
1954 Hungary Ch – Round 1 – Barcza, Gedeon – 1-0 – Kluger, Gyula – G59 1. g3 e5 2. c4 Nc6 3. Bg2 f5 4. Nc3 Nf6 5. d3 d6 6. f4 Be7 7. Nf3 O-O 8. O-O Qe8 9. e3 Kh8 10. b3 Be6
1954 URS-chTJ Coop – Round ? – Taimanov, Mark E – 1-0 – Aronin, Lev – G13 1. c4 e5 2. Nc3 Nc6 3. g3 f5 4. Bg2 Nf6 5. d3 g6 6. Nf3 Bg7 7. O-O O-O 8. Rb1 a5 9. a3 Qe8 10. Bg5 d6
1955 CSR Ch – Round 10 – Zaruba, Antonin – 1-0 – Florian, Jaromir – G73 1. c4 e5 2. Nc3 Nc6 3. g3 f5 4. Bg2 Nf6 5. d3 Bb4 6. e3 O-O 7. Ne2 d5 8. cxd5 Nxd5 9. a3 Nxc3 10. bxc3 Be7
1956 URS Ch sf – Round ? – Tarasov, Vitaly – 1/2-1/2 – Chistiakov, Alexander – G3 1. c4 e5 2. Nc3 Nc6 3. g3 f5 4. Bg2 Nf6 5. d3 Bb4 6. a3 Bxc3+ 7. bxc3 d6 8. Rb1 O-O 9. Nh3 Qe8 10. f4 e4
1957 URS Ch, semi final – Round 7 – Goldberg, Grigory – 1-0 – Chistiakov, Alexander – G61 1. c4 e5 2. Nc3 Nc6 3. g3 f5 4. Bg2 Nf6 5. d3 Bb4 6. Bd2 O-O 7. Nf3 d6 8. O-O Bd7 9. Rc1 Bxc3 10. Bxc3 Qe7
1959 Hastings5960 – Round 7 – Bobotsov, Milko G – 1-0 – Pomar Salamanca, Arturo – G29 1. c4 e5 2. Nc3 Nc6 3. g3 f5 4. Bg2 Nf6 5. d3 Be7 6. e3 O-O 7. Nge2 d6 8. Nd5 Be6 9. Nec3 Qd7 10. Qa4 a6
1959 York ch-BCF – Round 1 – Edwards, Ray B – 0-1 – Fazekas, Stephan – G2 1. c4 e5 2. Nc3 Nc6 3. g3 f5 4. Bg2 Nf6 5. d3 Bc5 6. Nf3 d6 7. O-O O-O 8. a3 a5 9. Rb1 Qe8 10. Nd5 Nxd5
1960 Aalborg – Round 10 – Enevoldsen, Jens – 1/2-1/2 – Haahr, Thorkild – G53 1. c4 e5 2. Nc3 Nc6 3. g3 f5 4. Bg2 Nf6 5. d3 g6 6. e3 Bg7 7. Nge2 O-O 8. O-O Kh8 9. Rb1 a5 10. a3 d6
1960 Leipzig olm fin-A – Round 7 – Langeweg, Kick – 0-1 – Bisguier, Arthur B – G111 1. c4 Nc6 2. Nc3 e5 3. g3 f5 4. d3 Nf6 5. Bg2 Bb4 6. Bd2 O-O 7. e3 e4 8. dxe4 Ne5 9. exf5 d5 10. Nxd5 Bxd2+
1961 Buenos Aires ch-ARG – Round 10 – Bazan, Osvaldo – 0-1 – Reinhardt, Enrique – G59 1. c4 e5 2. Nc3 f5 3. g3 Nf6 4. Bg2 Nc6 5. d3 d6 6. e3 Be7 7. Nge2 O-O 8. a3 Qe8 9. b4 Be6 10. Nd5 Bd8
1961 Graz 1st – Round 1 – Rabar, Braslav – 1/2-1/2 – Dueckstein, Andreas – G1 1. c4 f5 2. Nc3 e5 3. g3 Nf6 4. Bg2 Nc6 5. d3 Bc5 6. e3 O-O 7. Nge2 d6 8. O-O Qe8 9. Nd5 Bb6 10. Nec3 Ne7
1961 Oberhausen etc – Round 8 – Petrosian, Tigran A. – 1-0 – Hort, Vlastimil – G192 1. c4 e5 2. Nc3 Nc6 3. g3 f5 4. Bg2 Nf6 5. d3 g6 6. Rb1 Bg7 7. b4 d6 8. b5 Nd4 9. Nh3 O-O 10. O-O h6
1962 Mar del Plata – Round 1 – Byrne, David – 1/2-1/2 – Polugaevsky, Lev – G3 1. c4 e5 2. Nc3 Nc6 3. g3 f5 4. Bg2 Nf6 5. d3 g6 6. e4 d6 7. Nge2 Bg7 8. O-O O-O 9. Nd5 Nxd5 10. cxd5 Ne7
1962 Varna olm – Round 1 – O'Kelly de Galway, Alberic – 1/2-1/2 – Kokkoris, Evangelos – G2 1. c4 e5 2. Nc3 Nc6 3. g3 f5 4. Bg2 Nf6 5. d3 d6 6. a3 a5 7. Nf3 Be7 8. Bd2 O-O 9. O-O Qe8 10. Ne1 Qh5
1963 URS Team Ch Moscow RUS – Round 1 – Botvinnik, Mikhail – 1-0 – Shofman Shimoni, Ori – G2 1. c4 e5 2. Nc3 Nc6 3. g3 f5 4. Bg2 Nf6 5. d3 Bb4 6. Bd2 O-O 7. e3 Bxc3 8. Bxc3 f4 9. exf4 exf4 10. Nh3 Qe8+
1964 WchT U26 11. qual-F – Round 1.2 – Kagan, Shimon – 1-0 – Csom, Istvan – G3 1. c4 e5 2. Nc3 Nc6 3. g3 f5 4. Bg2 Nf6 5. d3 d6 6. Rb1 a5 7. a3 g6 8. b4 axb4 9. axb4 Bg7 10. e3 O-O
1965 POL Ch 22th – Round 12 – Balcerowski, Witold – 0-1 – Sydor, Andrzej – G65 1. c4 e5 2. Nc3 Nc6 3. g3 f5 4. Bg2 Nf6 5. d3 Bb4 6. a3 Bxc3+ 7. bxc3 O-O 8. Nf3 Qe8 9. O-O d6 10. e3 e4
1965 WchT U26 12. prel – Round 5 – Rabassa, Luis – 0-1 – Savon, Vladimir A – G43 1. c4 f5 2. Nc3 Nf6 3. g3 e5 4. Bg2 Nc6 5. d3 g6 6. Nh3 Bg7 7. O-O O-O 8. f4 d6 9. Nd5 Kh8 10. Nf2 Be6
1968 Copenhagen ch-DEN – Round 1 – Andersen, Borge – 1-0 – From, Sigfred – G1 1. c4 e5 2. g3 Nc6 3. Bg2 f5 4. Nc3 Nf6 5. d3 Bb4 6. Bd2 Bxc3 7. Bxc3 d6 8. b4 O-O 9. b5 Ne7 10. Nf3 Qe8
1969 Mar del Plata zt – Round 1 – Alfaro Quinteros, Arturo Elizur – 1-0 – Acosta Garcia, Rafael Isaac – G2 1. c4 e5 2. Nc3 Nc6 3. g3 f5 4. Bg2 Nf6 5. d3 d6 6. e3 g6 7. Nge2 Bg7 8. Rb1 O-O 9. b4 a6 10. a4 Rb8
1969 New York ch-USA – Round 5 – Byrne, David – 1/2-1/2 – Lombardy, William J – G21 1. c4 e5 2. g3 Nc6 3. Bg2 f5 4. Nc3 Nf6 5. d3 Be7 6. e3 O-O 7. Nge2 Qe8 8. O-O Kh8 9. Nd5 Bd8 10. Nec3 d6
1969 POL Ch 26th – Round 6 – Gasiorowski, Ryszard – 1/2-1/2 – Sydor, Andrzej – G21 1. c4 e5 2. Nc3 Nc6 3. g3 f5 4. Bg2 Nf6 5. d3 Bb4 6. e3 Bxc3+ 7. bxc3 O-O 8. Ne2 d6 9. O-O Qe8 10. f4 1/2-1/2
1969 Zagreb – Round 14 – Kovacevic, Veljko – 0-1 – Lombardy, William J – G94 1. c4 e5 2. Nc3 f5 3. g3 Nf6 4. Bg2 Nc6 5. d3 Be7 6. a3 O-O 7. Nh3 Qe8 8. Nd5 Bd8 9. O-O d6 10. f4 Kh8
20. European Teams 2015 – Round 2.4 – Vallejo Pons, Francisco – 1/2-1/2 – Nisipeanu, Liviu-Dieter – G84 1. c4 e5 2. g3 Nc6 3. Bg2 f5 4. Nc3 Nf6 5. d3 Bb4 6. Bd2 O-O 7. Nf3 d6 8. O-O a5 9. a3 Bxc3 10. Bxc3 a4
43. Olympiad 2018 – Round 1.4 – Burgos Figueroa, Carlos E. – 1/2-1/2 – Sasikiran, Krishnan – G52 1. c4 e5 2. Nc3 Nc6 3. g3 f5 4. Bg2 Nf6 5. d3 Bb4 6. Bd2 O-O 7. a3 Bxc3 8. Bxc3 d6 9. d4 e4 10. e3 d5
Interpolis 1987 – Round 1 – Andersson, Ulf 1949 – 1/2-1/2 – Nikolic, Predrag – G1 1. c4 e5 2. g3 Nc6 3. Bg2 f5 4. Nc3 Nf6 5. d3 g6 6. e4 d6 7. Nge2 Bg7 8. h3 O-O 9. Be3 Nh5 10. exf5 gxf5
Madrid 1973 – Round 5 – Karpov, Anatoly – 1/2-1/2 – Bellon Lopez, Juan Manuel – G10 1. c4 e5 2. Nc3 Nc6 3. g3 f5 4. Bg2 Nf6 5. d3 Bc5 6. e3 f4 7. exf4 O-O 8. Nge2 d6 9. O-O Qe8 10. Na4 Bd4
Thessaloniki olm 1984 – Round 9 – Portisch, Lajos – 1/2-1/2 – Kurajica, Bojan – G53 1. c4 e5 2. Nc3 Nc6 3. g3 f5 4. Bg2 Nf6 5. d3 Bb4 6. Nh3 Bxc3+ 7. bxc3 d6 8. Qb3 Qe7 9. O-O h6 10. f4 O-O

A25q — Closed

1.c4 e5 2.Nc3 Nc6 3.g3 f5 4.Bg2 Nf6 5.d3

Eval: [+0.31]

Les coups candidats

5…Bb4 — 50.5% (1576 parties)

Ambassadeurs : Kurajica, Bojan (10x), Lyell, Mark (8x), Kukucka, Matej (8x), Perez Garcia, Hebert (5x), Sher, Miron (5x), Prelevic, Dusko (5x), Iuldachev, Saidali (5x), Spraggett, Kevin (4x)

5…Bc5 — 23.0% (718 parties)

Ambassadeurs : Mitkov, Nikola (8x), Erlbeck, Peter (5x), Alaimo, Riccardo (3x), Schuetz, Peter (3x), Simonsen, Olavur (3x), Goldberg, Menashe (3x), Czech, Ludwig (3x), Krsnik Cohar, Ivan Vihor (3x)

5…g6 — 9.1% (283 parties)

Ambassadeurs : Uhlmann, Wolfgang (4x), Kafka, Graeme (4x), Thiruchelvam, Murugan (3x), Aronin, Lev (2x), Andersson, Ulf (2x), Landry-Vuorenpaa, Sirkka (2x), Carl Jorgensen, Bent (2x), Feistenauer, Fred (2x)

5…Be7 — 8.1% (253 parties)

Ambassadeurs : Vogiatzis, Dimitrios (4x), Kuehn, Manfred (3x), Tartakower, Savielly (2x), Lombardy, William J (2x), Moody, David W (2x), Landry-Vuorenpaa, Sirkka (2x), Agaragimov, Djakhangir (2x), Hirt, Stefan (2x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	5…Bb4	5…Bc5	5…g6	5…Be7
<1800	141	39%	32%	7%	11%
1800-2200	1473	50%	25%	9%	8%
2200-2600	1001	59%	18%	10%	5%
2600+	13	77%	8%	8%	8%

Évolution par décennie (% des parties)

Décennie	N parties	5…Bb4	5…Bc5	5…g6	5…Be7
1890s	1	—	100%	—	—
1920s	1	—	100%	—	—
1930s	5	100%	—	—	—
1940s	5	20%	40%	—	40%
1950s	13	31%	23%	15%	23%
1960s	39	33%	8%	15%	21%
1970s	63	32%	37%	14%	8%
1980s	104	41%	24%	11%	12%
1990s	457	38%	24%	13%	12%
2000s	935	47%	26%	9%	7%
2010s	1277	58%	21%	7%	7%
2020s	220	62%	18%	6%	5%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
5…Bb4	58%	62%	▲ +3.9%
5…Bc5	21%	18%	▼ -3.1%
5…g6	7%	6%	▼ -1.5%
5…Be7	7%	5%	▼ -1.1%

Joueurs célèbres

Champions du monde dans cette position

Karpov, Aleksandr — 2 parties
Karpov, Anatoly — 2 parties
Lasker, Emanuel — 1 partie
Fischer, Robert James — 1 partie
Botvinnik, Mikhail — 1 partie

Parties historiques

5…Bb4 — 50.5% (1576 parties)

1935 — Dake, Arthur William vs Steiner, Herman — 1/2-1/2 — Los Angeles, CA USA
1935 — Thomas, George Alan vs Mieses, Jacques — 1/2-1/2 — Margate ENG
1936 — Lundin, Erik vs Ahues, Carl — 1/2-1/2 — Munich GER
1936 — Apscheneek, Fricis vs List, Paul — 0-1 — Riga LAT
1939 — Roess, L. vs Koch, Berthold — 1/2-1/2 — Bad Elster

5…Bc5 — 23.0% (718 parties)

1898 — Blackburne, Joseph vs Schiffers, Emanuel — 1/2-1/2 — Vienna AUT
1920 — De Koning Fok vs Lasker, Emanuel — 1/2-1/2 — Amsterdam NED
1941 — Carls, Carl vs Bogoljubow, Efim — 0-1 — Krakow/Warsaw
1949 — Evans, Larry vs Kramer, George — 1-0 — US op Omaha
1955 — De Rycke, Paul vs Boey, Josef — 1-0 — Belgium

5…g6 — 9.1% (283 parties)

1951 — Golombek, Harry vs Bogoljubow, Efim — 1/2-1/2 — Bad Pyrmont GER
1954 — Taimanov, Mark vs Aronin, Lev — 1-0 — Riga LAT
1960 — Enevoldsen, Jens vs Haahr, Thorkild — 1/2-1/2 — Aalborg DEN
1961 — Petrosian, Tigran A. vs Hort, Vlastimil — 1-0 — Oberhausen etc
1962 — Byrne, David vs Polugaevsky, Lev — 1/2-1/2 — Mar del Plata ARG

5…Be7 — 8.1% (253 parties)

1946 — Golombek, Harry vs Tartakower, Savielly — 1/2-1/2 — Hastings ENG
1948 — Rubinow, Sol vs Steiner, Heinrich Jun. — 0-1 — South Fallsburg ch-USA
1950 — Pirc, Vasja vs Tartakower, Savielly — 0-1 — Amsterdam NED
1952 — Gawlikowski, Stanislaw vs Wozniak, Kazimierz — 1/2-1/2 — Katowice POL
1959 — Bobotsov, Milko G vs Pomar Salamanca, Arturo — 1-0 — Hastings ENG

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