A25f — English: Closed

1.c4 e5 2.Nc3 Nc6 3.e3 Nf6 *   ○ Trait aux Blancs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1
bR
bB
bQ
bK
bB
bR
bP
bP
bP
bP
bP
bP
bP
bN
bN
Case forte (2v0)
Case forte (2v1)
bP
wP
wN
wPPion central
wP
wP
wP
wP
wP
wP
wR
wB
wQ
wK
wB
wN
wR
abcdefgh
Plans. Nf3 (Développer g1 — 38 % des parties) ; a3 (Préparer expansion aile dame — 25 % des parties) ; d4 (Occuper le centre — 15 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8
wR
wN
wB
wK
wQ
wB
wR
wP
wP
wP
wP
wP
wP
wP
wN
wP
Case forte (2v0)
bP
bN
bN
bP
bP
bP
bP
bP
bP
bP
bR
bBFou actif — mobilité 5
bK
bQ
bB
bR
hgfedcba
Plans. ...Bb4 (Clouer c3, Fou actif (mobilité 7), Développer f8 — 31 % des parties) ; ...d5 (Occuper le centre — 20 % des parties) ; ...g6 (Préparer le fianchetto — 13 % des parties) ; ...Be7 (Fou actif (mobilité 5), Développer f8 — 11 % des parties) ; ...d6 (Libérer Bc8 — 7 % des parties).
Avantages
Faiblesses
Diagonale active
Plans

Structure de pions
♔ Blancs ♚ Noirs
Pions doublés
Pions isolés
Arriérés
Chaînes ● d2→e3, f2→e3
Passés
Majorité
Cases
♔ Blancs ♚ Noirs
Cases fortes ● b5 (2v0), ● d5 (2v1) ● b4 (2v0)
Cases faibles
Centre ● d5 (2v1) ● d4 (2v1), ● e5 (1v0)
Colonnes et diagonales
♔ Blancs ♚ Noirs
Pièces
♔ Blancs ♚ Noirs
Bc1 ● Bc1 Non développé (mob. 0)
Bf1 ● Bf1 Non développé (mob. 2)
Bc8 ● Bc8 Non développé (mob. 0)
Bf8 ● Bf8 Non développé (mob. 5)
Paire de fous ● Oui ● Oui
Non développées 5 (● g1, ● c1, ● f1, ● 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 mobile
Ruptures ● d2-d4, ● f2-f4 ● …d7-d5
Partie
1902 DSB-13.Kongress Hauptturnier A – Round 1 – Neumann, Augustin – 0-1 – John, Walter – G1
1. c4 e5 2. Nc3 Nf6 3. e3 Nc6 4. b3 d5 5. cxd5 Nxd5 6. Bb5 Nxc3 7. Bxc6+ bxc6 8. dxc3 Qxd1+ 9. Kxd1 Bf5 10. Ke1 a5
1904 DSB-14.Kongress – Round 4 – Swiderski, Radoslaw – 0-1 – Suechting, Hugo – G16
1. c4 e5 2. Nc3 Nc6 3. e3 Nf6 4. d4 exd4 5. exd4 d5 6. Bg5 Be7 7. Nf3 dxc4 8. Bxc4 O-O 9. h3 h6 10. Be3 Bd6
1921 BCF Ch 14th – Round 2 – Jacobs, Herbert Levi – 0-1 – Yates, Fred Dewhirst – G1
1. e3 e5 2. c4 Nc6 3. Nc3 Nf6 4. Nge2 d5 5. cxd5 Nb4 6. d4 Bf5 7. Qa4+ c6 8. dxc6 bxc6 9. Ng3 Bc2 10. b3 exd4
1932 Berlin Ch – Round 9 – Elstner, Rudolf – 0-1 – Koch, Berthold – G24
1. c4 e5 2. Nc3 Nc6 3. e3 Nf6 4. d4 exd4 5. exd4 Bb4 6. Nf3 d5 7. Be2 dxc4 8. O-O O-O 9. Bg5 Bg4 10. Bxc4 Be7
1958 HUN Ch 13th – Round 12 – Bilek, Istvan – 1-0 – Borloy, Karoly – G98
1. c4 Nc6 2. Nc3 e5 3. e3 Nf6 4. d3 d5 5. cxd5 Nxd5 6. Nf3 Bb4 7. Bd2 O-O 8. Qc2 Re8 9. Be2 Nb6 10. a3 Bf8
40. Olympiad Open 2012 – Round 1.10 – Short, Nigel D – 1-0 – Simonet, Marc – G6
1. c4 e5 2. Nc3 Nc6 3. e3 Nf6 4. a3 g6 5. d4 Bg7 6. Be2 exd4 7. exd4 d5 8. cxd5 Nxd5 9. Nf3 h6 10. Qb3 Nce7
82. Tata Steel GpA 2020 – Round 1.1 – Carlsen, Magnus – 1/2-1/2 – Giri, Anish – G1
1. c4 Nf6 2. Nc3 e5 3. e3 Nc6 4. Qb3 g6 5. Nf3 Bg7 6. d4 exd4 7. exd4 O-O 8. Be2 d6 9. O-O Re8 10. h3 Ne4
Amber-rapid 13th 2004 – Round 5 – Morozevich, Alexander – 0-1 – Gelfand, Boris – G12
1. c4 e5 2. Nc3 Nf6 3. e3 Nc6 4. a3 g6 5. b4 Bg7 6. Bb2 O-O 7. Nge2 d6 8. Nd5 Ne7 9. Nxf6+ Bxf6 10. Nc3 Bg7
Amber-rapid 3rd 1994 – Round 9 – Korchnoi, Viktor – 1-0 – Seirawan, Yasser – G48
1. c4 e5 2. Nc3 Nc6 3. e3 Nf6 4. d3 d5 5. cxd5 Nxd5 6. a3 Be7 7. Qc2 O-O 8. Nf3 Be6 9. Be2 Qd7 10. Ne4 f6
Candidats Tournament 1985 – Round 15 – Korchnoi, Viktor – 1/2-1/2 – Chernin, Alexander – G90
1. c4 Nf6 2. Nc3 e5 3. e3 Nc6 4. a3 d5 5. cxd5 Nxd5 6. Qc2 Nxc3 7. dxc3 Bd6 8. e4 Be6 9. Nf3 f6 10. Be3 Qe7
FIDE World Cup 2025 – Round R2 Classical 1 – Mamedyarov Shakhriyar – 1-0 – Kantor Gergely – G224
1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 exd4 5. e5 Ne4 6. O-O Be7 7. Bd5 Nc5 8. c3 dxc3 9. Nxc3 O-O 10. Be3 d6
FIDE World Rapid Championship 2025 – Round 12 – Abdusattorov Nodirbek – 1/2-1/2 – Samuel Sevian – G228
1. c4 e5 2. Nc3 Nf6 3. e3 Nc6 4. Qb3 Bc5 5. Nf3 d6 6. d3 O-O 7. Be2 a6 8. O-O Ba7 9. a3 Re8 10. Qc2 Ne7
GCT Blitz Croatia 2021 – Round 7.4 – Kasparov, Garry – 0-1 – Giri, Anish – G34
1. c4 Nf6 2. Nc3 e5 3. e3 Nc6 4. a3 d5 5. cxd5 Nxd5 6. Qc2 Nxc3 7. bxc3 Qd6 8. Bd3 Be6 9. Rb1 O-O-O 10. Be2 g5
GCT Blitz YourNextMove 2017 – Round 12.3 – Carlsen, Magnus – 1-0 – Vachier-Lagrave, Maxime – G58
1. c4 e5 2. e3 Nf6 3. Nc3 Nc6 4. g4 Bb4 5. g5 Bxc3 6. bxc3 Ng8 7. d4 Qxg5 8. d5 Nd8 9. d6 c6 10. Nf3 Qf5
Madrid 1993 – Round 8 – Rivas Pastor, Manuel – 0-1 – Anand, Viswanathan – G33
1. c4 e5 2. Nc3 Nf6 3. e3 Nc6 4. a3 g6 5. b4 Bg7 6. Bb2 O-O 7. d3 d5 8. cxd5 Nxd5 9. Nge2 Nb6 10. g3 Bf5
SportAccord Blitz Men 2012 – Round 4.3 – Morozevich, Alexander – 0-1 – Karjakin, Sergey – G25
1. c4 e5 2. Nc3 Nf6 3. e3 Nc6 4. a3 g6 5. d3 Bg7 6. Nf3 O-O 7. Be2 d5 8. cxd5 Nxd5 9. Bd2 a5 10. O-O Be6
Superbet Classic 2021 – Round 7.5 – Lupulescu, Constantin – 1/2-1/2 – Deac, Bogdan-Daniel – G33
1. c4 Nf6 2. Nc3 e5 3. e3 Nc6 4. a3 g6 5. d4 exd4 6. exd4 d5 7. Bg5 Be7 8. Nf3 O-O 9. Be2 Be6 10. cxd5 Bxd5
Tata Steel , Wijk aan Zee 2013 – Round 3.2 – Turov, Maxim – 0-1 – Naiditsch, Arkadij – G4
1. c4 e5 2. Nc3 Nf6 3. e3 Nc6 4. a3 d5 5. cxd5 Nxd5 6. Qc2 Nxc3 7. Qxc3 Bd6 8. b4 O-O 9. Bb2 a6 10. Nf3 Qe7
Turin ol (Men) 37th 2006 – Round 7 – Harikrishna, Pentala – 0-1 – Karjakin, Sergey – G86
1. c4 e5 2. Nc3 Nf6 3. e3 Nc6 4. a3 d5 5. cxd5 Nxd5 6. Qc2 Nxc3 7. bxc3 Bd6 8. d4 O-O 9. Bb2 Qe7 10. Nf3 b6
World Blitz 2018 – Round 16.53 – Rakhmanov, Aleksandr – 1/2-1/2 – Frolyanov, Dmitry – G971
1. c4 Nf6 2. Nc3 e5 3. e3 Nc6 4. d4 Bb4 5. Ne2 exd4 6. exd4 O-O 7. a3 Bxc3+ 8. Nxc3 d5 9. cxd5 Nxd5 10. Be2 Be6
World Blitz 2018 – Round 3.6 – Indjic, Aleksandar – 0-1 – Karjakin, Sergey – G188
1. c4 Nf6 2. Nc3 e5 3. e3 Nc6 4. g4 h6 5. Bg2 d6 6. h3 g6 7. Nge2 Bg7 8. d4 O-O 9. O-O Re8 10. d5 Nb8
World Blitz 2019 – Round 16.44 – Timofeev, Artyom – 1-0 – Jumabayev, Rinat – G1088
1. c4 e5 2. e3 Nf6 3. Nc3 Nc6 4. d3 d5 5. cxd5 Nxd5 6. Nf3 Be7 7. Be2 O-O 8. O-O Be6 9. a3 a5 10. Bd2 Nb6
World Rapid 2019 – Round 11.57 – Makarian, Rudik – 0-1 – Paravyan, David – G733
1. c4 e5 2. Nc3 Nf6 3. e3 Nc6 4. a3 d5 5. cxd5 Nxd5 6. Qc2 Nxc3 7. Qxc3 Bd6 8. d3 O-O 9. Nf3 Qf6 10. Be2 Qg6
XX SuperGM 2003 – Round 10 – Vallejo Pons, Francisco – 1/2-1/2 – Kramnik, Vladimir – G28
1. c4 Nf6 2. Nc3 e5 3. e3 Nc6 4. a3 g6 5. d4 exd4 6. exd4 Bg7 7. Nf3 d5 8. Bg5 h6 9. Qe2+ Kf8 10. Be3 Kg8

A25f — Closed (1902)
1.c4 e5 2.Nc3 Nc6 3.e3 Nf6
Les coups candidats
Ambassadeurs : Suba, Mihai (7x), Jung, Reiner (6x), Miles, Anthony J (5x), Korchnoi, Viktor (5x), Rodgaard, John (5x), Rakhmanov, Aleksandr (5x), Adamski, Jan (4x), Stoma, Pawel (4x)
4.a3 — 24.6% (388 parties)
Ambassadeurs : Malakhatko, Vadim (20x), Dgebuadze, Alexandre (4x), Korchnoi, Viktor (3x), Conquest, Stuart C (3x), Hoorweg, Frits P.A. (3x), Kostanjsek, Zorko (3x), Lanzani, Mario Lorenzo (3x), Chernin, Alexander (2x)
4.d4 — 14.9% (236 parties)
Ambassadeurs : Al Kaoury, Mahdi (7x), Drobyshevsky, Vasily Vasilievich (3x), Costello, Colin A (2x), Biro, Karol (2x), Rieger, Emmanuel (2x), Rodriguez Matas, Enrique (2x), Shenker, Sabrina (2x), Saravanan, Mahitha (2x)
4.d3 — 4.9% (77 parties)
Ambassadeurs : Timofeev, Artyom (10x), Moehring, Guenther (2x), Becerra, Andres Mauricio (2x), Bak, Istvan (1x), Borloy, Karoly (1x), Rios Fo., Hilton Carlos da Silva (1x), Rosa, Carlos Roberto de Jesus (1x), Moskalenko, Viktor (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 4.Nf3 4.a3 4.d4 4.d3
<1800 125 25% 18% 27% 7%
1800-2200 481 40% 19% 19% 4%
2200-2600 622 44% 35% 6% 4%
2600+ 69 20% 33% 4% 7%
Évolution par décennie (% des parties)
Décennie N parties 4.Nf3 4.a3 4.d4 4.d3
1950s 2 50% 50%
1960s 6 67% 33%
1970s 35 66% 9% 14% 3%
1980s 73 68% 18% 1% 4%
1990s 212 30% 23% 20% 6%
2000s 345 30% 22% 22% 6%
2010s 637 38% 29% 14% 5%
2020s 270 41% 23% 8% 3%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
4.Nf3 38% 41% ▲ +3.1%
4.a3 29% 23% ▼ -5.8%
4.d4 14% 8% ▼ -6.7%
4.d3 5% 3% ▼ -2.1%
Joueurs célèbres
Champions du monde dans cette position
Carlsen, Magnus — 4 parties
Kasparov, Garry — 3 parties
Karpov, Anatoly — 1 partie
Anand, Viswanathan — 1 partie
Kramnik, Vladimir — 1 partie
Gukesh D — 1 partie
Parties historiques
4.Nf3 — 37.9% (599 parties)
1956 — Schroeder, Hannes vs Lieb, Harald — 0-1 — Hitzacker
1963 — Schallehn, Dieter vs Bauer, Erich — 1/2-1/2 — Leipzig GER
1963 — Taimanov, Mark vs Zakharov, Alexander V — 1/2-1/2 — Leningrad ch-URS
1968 — Korchnoi, Viktor vs Lehmann, Karl-Heinz — 1-0 — Palma de Majorca ESP
1968 — Korchnoi, Viktor vs Lehmann, Heinz — 1-0 — Palma de Majorca ESP
4.a3 — 24.6% (388 parties)
1962 — Veizaj, Mendim vs Navabi, Abdolhossein — 1-0 — Varna BUL
1966 — Overweg, Danny vs Timman, Jan H — 1-0 — Delft ch-NED jr
1975 — Andersen, Borge vs Iskov, Gert — 0-1 — Copenhagen DEN
1975 — Lebredo Zaragoitia, Gerardo vs Diaz, Joaquin, Dr. — 1/2-1/2 — Cienfuegos City CUB
1976 — Celorio vs Wozney, Tom — 0-1 — Cleveland-Miami Phn
4.d4 — 14.9% (236 parties)
1972 — Hobson, Ronald vs Niamdorzi — 0-1 — Skopje MKD
1974 — O Shea M vs O`sullivan, Ellen — 0-1 — ?
1978 — Gunev, Zlatan vs Atanasov, Petko — 0-1 — Ruse
1979 — Wacker, Peter vs Enklaar, Bert — 0-1 — Nijmegen NED
1979 — Garcia , Gandy vs Bronstein, Luis Marcos — 1/2-1/2 — Rio de Janeiro izt
4.d3 — 4.9% (77 parties)
1958 — Bak, Istvan vs Borloy, Karoly — 1-0 — Budapest HUN
1979 — Moehring, Guenther vs Zaitsev, Igor A — 0-1 — Sochi RUS
1984 — Moskalenko, Viktor vs Vainerman, Igor — 1/2-1/2 — Kharkov UKR
1987 — Rios Fo., Hilton Carlos da Silva vs Rosa, Carlos Roberto de Jesus — 1/2-1/2 — Rio de Janeiro BRA
1987 — Moehring, Guenther vs Strzelecki, Krzysztof — 1/2-1/2 — Olomouc CZE

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