A25j — English: Closed

1.c4 e5 2.Nc3 Nc6 3.g3 g6 4.Bg2 * ● Trait aux Noirs

Ouverture — Centre semi-ouvert

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Avantages : case forte e4, case forte b5, case forte d5, Bg2 actif, paire de fous.
Faiblesses adverses : arriéré f7, 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
● d3 — Libérer Bc1

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Avantages : case forte b4, case forte d4, paire de fous.
Faiblesses adverses : Bc1 enfermé, roi blanc au centre.
Problèmes : roi au centre, Bc8 enfermé, Bf8 enfermé, arriéré f7, 5 pièces non développées (G8, C8, F8, A8, H8).
Plans :
● O-O — Mettre le roi en sécurité, connecter les tours
● ...d6 — Libérer Bc8
● ...Nf6 — Développer Ng8
● ...Be7 — Développer Bf8
● ...d5 — Rupture

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

A25j — Closed

1.c4 e5 2.Nc3 Nc6 3.g3 g6 4.Bg2

Eval: [+0.21]

Les coups candidats

4…Bg7 — 97.1% (13441 parties) →

Ambassadeurs : Miezis, Normunds (38x), Jussupow, Artur (35x), Pribyl, Josef (33x), Hort, Vlastimil (32x), Bischoff, Klaus (27x), Browne, Walter Shawn (26x), Taimanov, Mark (24x), Seirawan, Yasser (24x)

4…d6 — 2.1% (288 parties)

Ambassadeurs : Liepold, Stefan (11x), Dgebuadze, Alexandre (6x), Alekseenko, Kirill (6x), Hlousek, Zdenek (5x), Schlindwein, Rolf (4x), De Wolf, Johan (4x), Yoos, John C. (4x), Jankovec, Ivan (3x)

4…Nge7 — 0.5% (71 parties)

Ambassadeurs : Vodila, Martin Botond (3x), Bugalski, Michal (2x), Carls, Carl (1x), Spielmann, Rudolf (1x), Tossas, J. (1x), Welsh, Alan (1x), Beggi, Pierluigi (1x), Castaldi, Vincenzo (1x)

4…f5 — 0.2% (23 parties)

Ambassadeurs : Rudenko, Aleksandr Vladimiro (4x), Gerhold, Michael (2x), Perovic, Dragan (2x), Garcia Padron, Jose (1x), Browne, Walter Shawn (1x), Waterman, Dennis (1x), Evans, Larry (1x), Bakker, Jan (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	4…Bg7	4…d6	4…Nge7	4…f5
<1800	270	97%	1%	1%	0%
1800-2200	4692	97%	2%	1%	0%
2200-2600	6014	97%	2%	0%	0%
2600+	222	96%	3%	—	0%

Évolution par décennie (% des parties)

Décennie	N parties	4…Bg7	4…d6	4…Nge7	4…f5
1910s	1	—	—	100%	—
1920s	10	100%	—	—	—
1930s	41	100%	—	—	—
1940s	26	100%	—	—	—
1950s	75	97%	3%	—	—
1960s	317	96%	4%	1%	—
1970s	487	95%	5%	—	0%
1980s	1036	97%	3%	0%	—
1990s	3013	98%	2%	1%	0%
2000s	3971	97%	2%	0%	0%
2010s	4173	97%	2%	1%	0%
2020s	698	97%	2%	1%	—

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
4…Bg7	97%	97%	-0.1%
4…d6	2%	2%	+0.5%
4…Nge7	1%	1%	-0.1%
4…f5	0%	0%	-0.2%

Joueurs célèbres

Champions du monde dans cette position

Smyslov, Vladimir — 9 parties
Karpov, Anatoly — 9 parties
Kasparov, Garry — 8 parties
Tal, Mikhail — 6 parties
Karpov, Aleksandr — 6 parties
Anand, Viswanathan — 5 parties
Botvinnik, Mikhail — 4 parties
Euwe, Max — 3 parties
Lasker, Emanuel — 2 parties
Kramnik, Vladimir — 2 parties
Ju, Wenjun — 2 parties
Ding, Liren — 2 parties
Gukesh D — 2 parties
Alekhine, Alexander — 1 partie
Steinitz, Wilhelm — 1 partie

Parties historiques

4…Bg7 — 97.1% (13441 parties)

1922 — Antze, Oskar vs Gomez Gruber, Maria Gabriela — 1-0 — Bad Oeynhausen GER
1922 — Alekhine, Alexander vs Tarrasch, Siegbert — 1-0 — Vienna AUT
1922 — Steinitz, Wilhelm vs Lasker, Emanuel — 1/2-1/2 — New York, NY USA
1923 — Colle, Edgar vs Mieses, Jacques — 1-0 — Hastings ENG
1925 — Carls, Carl vs Tartakower, Savielly — 1/2-1/2 — Baden-Baden GER

4…d6 — 2.1% (288 parties)

1956 — Pithart, Frantisek vs Pachman, Ludek — 1/2-1/2 — Marianske Lazne
1956 — Sliwa, Bogdan vs Pachman, Ludek — 1-0 — Dresden GER
1962 — Kavalek, Lubomir vs Trapl, Jindrich — 1-0 — Jablonec
1967 — Panov, Vladimir vs Bukic, Enver — 1/2-1/2 — Skopje MKD
1968 — Smyslov, Vladimir vs Ungureanu, Elena-Alexandra — 1-0 — Lugano SUI

4…Nge7 — 0.5% (71 parties)

1912 — Carls, Carl vs Spielmann, Rudolf — 1-0 — Breslau GER
1963 — Beggi, Pierluigi vs Castaldi, Vincenzo — 1-0 — Reggio Emilia ITA
1968 — Tossas, J. vs Welsh, Alan — 1-0 — Santa Monica, CA USA
1988 — Seruga, Stefan vs Tevz — 1-0 — corr Yugoslavia
1992 — Ramon Pita, Vivian vs Abad Garcia, Gonzalo — 1/2-1/2 — Havana CUB

4…f5 — 0.2% (23 parties)

1971 — Waterman, Dennis vs Evans, Larry — 0-1 — Lone Pine, CA USA
1977 — Garcia Padron, Jose vs Browne, Walter Shawn — 0-1 — Las Palmas ESP
1990 — Ljubojevic, Ljubomir vs Seirawan, Yasser — 1/2-1/2 — Novi Sad SRB
1990 — Petursson, Margeir vs Perovic, Dragan — 1-0 — Vienna AUT
1991 — Bakker, Jan vs Bronstein, David I — 0-1 — Houten,OKU

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	● f7
Chaînes	● f2→g3, h2→g3	● f7→g6, h7→g6
Passés	—	—
Majorité	—	—

Cases

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

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 0)
Bg2	● Bg2 Actif (mob. 6)
Bc8		● Bc8 Non développé (mob. 0)
Bf8		● Bf8 Non développé (mob. 7)
Paire de fous	● Oui	● Oui
Non développées	4 (g1, c1, a1, h1)	5 (g8, 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, ● d2-d3, ● e2-e3, ● f2-f3	● …d7-d6, ● …d7-d5, ● …e5-e4, ● …f7-f6, ● …f7-f5

Partie
1956 Dresden – Round 1 – Sliwa, Bogdan – 1-0 – Pachman, Ludek – G1 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 d6 5. d3 Bd7 6. Rb1 Bg7 7. b4 Qc8 8. Bd2 Nf6 9. e3 O-O 10. Nge2 Bh3
1956 Marianske Lazne/Praha – Round 12 – Pithart, Frantisek – 1/2-1/2 – Pachman, Ludek – G78 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 d6 5. d3 Bd7 6. Rb1 Bg7 7. b4 Qc8 8. Bd2 Nd4 9. e3 Ne6 10. Nge2 h5
1962 CSR Ch – Round 15 – Kavalek, Lubomir – 1-0 – Trapl, Jindrich – G123 1. c4 e5 2. g3 Nc6 3. Bg2 g6 4. Nc3 d6 5. Rb1 Be6 6. d3 Bg7 7. b4 Qd7 8. b5 Nd8 9. Nf3 Bh3 10. O-O Bxg2
1963 Reggio Emilia 6364 06th – Round 1 – Beggi, Pierluigi – 1-0 – Castaldi, Vincenzo – G1 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Nge7 5. Nf3 Bg7 6. O-O O-O 7. d3 d6 8. Bd2 h6 9. Rb1 Be6 10. b4 Qd7
1968 CSR Ch – Round 9 – Jansa, Vlastimil – 1-0 – Hlousek, Zdenek – G75 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 d6 5. Rb1 a5 6. a3 Be6 7. d3 Bg7 8. b4 axb4 9. axb4 Qd7 10. b5 Nd8
1968 Lugano ol (Men) fin-A – Round 1 – Smyslov, Vladimir – 1-0 – Ungureanu, Elena-Alexandra – G3 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 d6 5. Rb1 Bg7 6. b4 f5 7. b5 Nce7 8. e3 Nf6 9. d4 exd4 10. exd4 O-O
1970 Palma de Mallorca Interzonal – Round 16 – Naranja, Renato – 1-0 – Reshevsky, Samuel – G12 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 d6 5. Nf3 Bg7 6. O-O f5 7. d3 Nf6 8. Rb1 a5 9. a3 Bd7 10. b4 axb4
FIDE World Cup 2019 – Round 4.3 – Ding, Liren – 1-0 – Alekseenko, Kirill – G377 1. c4 e5 2. g3 Nc6 3. Nc3 g6 4. Bg2 d6 5. e3 Bg7 6. Nge2 h5 7. h4 Be6 8. b3 Nf6 9. d4 exd4 10. exd4 Bg4
Novi Sad olm 1990 – Round 9 – Ljubojevic, Ljubomir – 1/2-1/2 – Seirawan, Yasser – G53 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 f5 5. d3 Bg7 6. Rb1 a5 7. a3 Nf6 8. e3 d6 9. Nge2 O-O 10. b4 axb4
World Blitz 2019 – Round 5.76 – Harsha Bharathakoti – 1-0 – Alekseenko, Kirill – G367 1. c4 e5 2. g3 Nc6 3. Bg2 g6 4. Nc3 d6 5. Nf3 Bg7 6. O-O f5 7. d3 Nf6 8. Rb1 a5 9. a3 O-O 10. b4 axb4
World Championship 34th-KK4 1987 – Round 6 – Kasparov, Garry – 1/2-1/2 – Karpov, Anatoly – G3 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 d6 5. Rb1 Bf5 6. d3 Qd7 7. b4 Bg7 8. b5 Nd8 9. Nd5 c6 10. bxc6 bxc6