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

abcdefgh

Avantages : case forte b5, case forte d5, Bg2 actif, paire de fous.
Faiblesses adverses : Bc8 enfermé, Bf8 enfermé, roi noir au centre.
Problèmes : roi au centre, Bc1 enfermé, 4 pièces non développées (G1, C1, A1, 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

hgfedcba

Avantages : case forte b4, case forte d4, case forte g4, avant-postes d4(C), g4(C), paire de fous.
Faiblesses adverses : Bc1 enfermé, roi blanc au centre.
Problèmes : roi au centre, Bc8 enfermé, Bf8 enfermé, 4 pièces non développées (C8, F8, A8, 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

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

	♔ 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

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