Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● a2→b3, b3→c4	● c6→d5, b7→c6
Passés	—	—
Majorité	—	—

Cases

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

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bf1	● Bf1 Non développé (mob. 0)
Bb2	● Bb2 Actif (mob. 6)
Bf5		● Bf5 Actif (mob. 10)
Bf8		● Bf8 Non développé (mob. 0)
Paire de fous	● Oui	● Oui
Non développées	4 (● b1, ● f1, ● a1, ● h1)	4 (● b8, ● 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	● e2-e4	—

A12g — English: New York/London Defence

1.c4 c6 2.Nf3 d5 3.b3 Nf6 4.Bb2 Bf5 * ○ Trait aux Blancs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plans. g3 (Préparer le fianchetto — 58 % des parties) ; d3 (Libérer Bf1, préparer Bd3 — 23 % des parties) ; e3 (Libérer Bf1, préparer Bd3 — 14 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plans. ...e6 (Solidifier le centre, libérer le fou — 76 % des parties) ; ...Nbd7 (Développer b8 — 10 % des parties) ; ...h6 (8 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Partie
1924 BCF Ch 17th – Round 4 – Scott, Roland Henry – 1-0 – Blake, Joseph – G20 1. Nf3 d5 2. c4 c6 3. b3 Nf6 4. Bb2 Bf5 5. d3 h6 6. Nbd2 e6 7. h3 Nbd7 8. g4 Bh7 9. Bg2 Bd6 10. a3 a5
1926 Bardejov – Round 9 – Sterk, Karoly – 0-1 – Asztalos, Lajos – G47 1. Nf3 d5 2. c4 c6 3. b3 Nf6 4. Bb2 Bf5 5. d3 e6 6. Nbd2 Nbd7 7. Qc2 Be7 8. g3 O-O 9. Bg2 h6 10. O-O a5
1926 WECU Major Open 3rd – Round 7 – Bolland, Benno – 1/2-1/2 – Blake, Joseph – G12 1. c4 c6 2. Nf3 d5 3. b3 Nf6 4. Bb2 Bf5 5. d3 e6 6. Nc3 d4 7. Nb1 Bb4+ 8. Nbd2 c5 9. g3 Nc6 10. a3 Ba5
1931 New York – Round 1 – Capablanca, Jose – 1-0 – Horowitz, Albert Israel – G19 1. Nf3 Nf6 2. c4 c6 3. b3 d5 4. Bb2 Bf5 5. d3 e6 6. Nbd2 Bd6 7. g3 O-O 8. Bg2 Nbd7 9. O-O Qe7 10. Re1 e5
1931 New York – Round 1 – Capablanca, Jose – 1-0 – Horowitz, Albert Israel – G20 1. Nf3 Nf6 2. c4 c6 3. b3 d5 4. Bb2 Bf5 5. d3 e6 6. Nbd2 Bd6 7. g3 O-O 8. Bg2 Nbd7 9. O-O Qe7 10. Re1 e5
1940 Rakovnik – Round 8 – Katetov, Miroslav – 1/2-1/2 – Hromadka, Karel – G45 1. Nf3 d5 2. c4 c6 3. b3 Nf6 4. Bb2 Bf5 5. g3 h6 6. Bg2 e6 7. d3 Nbd7 8. O-O Be7 9. Nbd2 O-O 10. Qc2 Bh7
1943 Zlin – Round 1 – Zita, Frantisek – 0-1 – Hromadka, Karel – G1 1. c4 Nf6 2. Nf3 c6 3. b3 d5 4. Bb2 Bf5 5. e3 e6 6. Be2 Nbd7 7. O-O Bd6 8. d4 Ng4 9. h3 h5 10. Bd3 Qf6
1946 Gyor – Round 8 – Toth, Jozsef – 0-1 – Füster, Géza – G17 1. Nf3 d5 2. c4 c6 3. b3 Nf6 4. Bb2 Bf5 5. d3 e6 6. g3 Nbd7 7. Bg2 Bc5 8. O-O h6 9. d4 Bd6 10. Nc3 Qe7
1947 URS Ch, semi final – Round 1 – Zhukhovitsky, Samuel – 0-1 – Aronin, Lev – G15 1. Nf3 Nf6 2. c4 c6 3. b3 d5 4. Bb2 Bf5 5. g3 h6 6. Bg2 Nbd7 7. O-O e6 8. d3 Be7 9. Nbd2 O-O 10. Re1 Qb6
1948 South Fallsburg ch-USA – Round 1 – Kramer, George – 1/2-1/2 – Evans, Larry M – G131 1. Nf3 d5 2. c4 c6 3. b3 Nf6 4. Bb2 Bf5 5. g3 h6 6. Bg2 e6 7. O-O Nbd7 8. d3 Be7 9. Nbd2 O-O 10. Ne5 Nxe5
1950 Hungary – Round 1 – Koberl, Ferenc – 1-0 – Füster, Géza – G76 1. Nf3 d5 2. c4 c6 3. b3 Nf6 4. Bb2 Bf5 5. d3 e6 6. Nbd2 Nbd7 7. g3 Bc5 8. Bg2 O-O 9. d4 Be7 10. O-O Ne4
1952 Havana – Round 21 – Abad Gonzalez, Jose Miguel – 0-1 – Evans Lianda – G150 1. c4 c6 2. Nf3 d5 3. b3 Nf6 4. Bb2 Bf5 5. d3 h6 6. g3 e6 7. Bg2 Be7 8. Nbd2 O-O 9. O-O a5 10. a3 Nbd7
1952 Mar del Plata – Round 2 – Garcia Vera, Romeo – 0-1 – Maderna, Carlos – G11 1. c4 Nf6 2. Nf3 c6 3. b3 d5 4. Bb2 Bf5 5. g3 Nbd7 6. Bg2 e6 7. O-O h6 8. d3 Be7 9. Nc3 O-O 10. Rc1 a5
1954 Amsterdam olm – Round 1 – Kotov Lundqvist, Alex – 1-0 – Van Scheltinga, Theo – G1 1. c4 c6 2. Nf3 d5 3. b3 Nf6 4. Bb2 Bf5 5. d3 e6 6. Nbd2 Nbd7 7. Nh4 Bg4 8. h3 Bh5 9. g4 Ng8 10. Ng2 Bg6
1954 Budapest tt Budapest HUN – Round ? – Zita, Frantisek – 1/2-1/2 – Makarczyk, Kazimierz – G1 1. c4 Nf6 2. Nf3 c6 3. b3 d5 4. Bb2 Bf5 5. Nh4 Bg4 6. h3 Bc8 7. e3 e6 8. Nf3 Nbd7 9. d4 Ne4 10. Bd3 f5
1961 FRG Ch Bad Prymont – Round 14 – Eising, Johannes – 1-0 – Hottes, Dieter – G30 1. c4 c6 2. Nf3 d5 3. b3 Nf6 4. Bb2 Bf5 5. e3 Nbd7 6. Be2 h6 7. O-O e6 8. Nc3 Be7 9. d3 O-O 10. Qd2 Bh7
1965 Hamburg etc – Round 10 – Lengyel, Laszlo – 1/2-1/2 – Radovici, Corvin – G126 1. Nf3 d5 2. c4 c6 3. b3 Nf6 4. Bb2 Bf5 5. d3 h6 6. g3 e6 7. Bg2 Be7 8. O-O O-O 9. Nbd2 Nbd7 10. Qc2 Bh7
1965 POL Ch 23th sf – Round 8 – Schinzel, Wladyslaw – 0-1 – Tarnowski, Alfred – G23 1. Nf3 Nf6 2. c4 c6 3. b3 d5 4. Bb2 Bf5 5. d3 e6 6. Nbd2 h6 7. h3 Nbd7 8. g4 Bh7 9. Bg2 Be7 10. O-O O-O
1966 New York ch-USA – Round 1 – Byrne, David – 1/2-1/2 – Addison, Wiliam G – G1 1. c4 c6 2. Nf3 Nf6 3. b3 d5 4. Bb2 Bf5 5. e3 e6 6. Be2 h6 7. O-O Nbd7 8. d4 Be7 9. Nc3 Ne4 10. a3 O-O
1966 OWL Ch – Round 1 – Werner, Stephan – 1-0 – Kubisch, Guido – G4 1. Nf3 d5 2. c4 c6 3. b3 Nf6 4. Bb2 Bf5 5. d3 e6 6. Nbd2 Be7 7. h3 h6 8. g4 Bh7 9. Bg2 Nbd7 10. O-O Qc7
1966 Reykjavik – Round 1 – Palmason, Gudmundur – 1/2-1/2 – Thorbergsson, Freysteinn – G3 1. c4 Nf6 2. Nf3 c6 3. b3 d5 4. Bb2 Bf5 5. g3 Qb6 6. Qc1 Ne4 7. Bd4 c5 8. Bb2 d4 9. Bg2 Nc6 10. O-O Nf6
1967 Zinnowitz – Round 1 – Golz, Werner – 1/2-1/2 – Malich, Burkhard, Dr. – G22 1. Nf3 Nf6 2. c4 c6 3. b3 d5 4. Bb2 Bf5 5. e3 e6 6. Be2 h6 7. O-O Be7 8. d3 O-O 9. Nbd2 Nbd7 10. Qc2 Bh7
1969 Hoogovens – Round 15 – Lombardy, William J – 0-1 – Van Scheltinga, Theo – G124 1. c4 Nf6 2. Nf3 c6 3. b3 d5 4. Bb2 Bf5 5. Nh4 Be6 6. e3 g6 7. Be2 Bg7 8. O-O O-O 9. Qc2 dxc4 10. bxc4 c5
1969 Luhacovice – Round 13 – Plachetka, Jan – 1-0 – Beni, Alfred – G96 1. Nf3 d5 2. c4 c6 3. b3 Nf6 4. Bb2 Bf5 5. d3 e6 6. g3 h6 7. Bg2 Nbd7 8. O-O Be7 9. Qc2 O-O 10. Nbd2 a5
Amber Rapidplay 2000 – Round 7 – Ljubojevic, Ljubomir – 0-1 – Gelfand, Boris – G35 1. Nf3 Nf6 2. c4 c6 3. b3 d5 4. Bb2 Bf5 5. d3 e6 6. Nbd2 h6 7. g3 Be7 8. Bg2 O-O 9. O-O Nbd7 10. Re1 Bh7
Linares 1981 – Round 1 – Larsen, Bent – 1-0 – Bellon Lopez, Juan Manuel – G12 1. Nf3 d5 2. c4 c6 3. b3 Nf6 4. Bb2 Bf5 5. e3 e6 6. Be2 h6 7. d3 Bb4+ 8. Nc3 Nbd7 9. O-O O-O 10. a3 Bd6

A12g — New York/London Defence (1924)

1.c4 c6 2.Nf3 d5 3.b3 Nf6 4.Bb2 Bf5

Les coups candidats

5.g3 — 58.1% (1060 parties)

Ambassadeurs : Stoeckl, Stephan (5x), Faldt, Magnus (4x), Dagon, Gilbert (4x), Moody, David W (3x), Sunye Neto, Jaime (3x), Blasco Frasquet, Raul (3x), Movsziszian, Karen (3x), Garcia Vera, Romeo (2x)

5.d3 — 22.9% (418 parties)

Ambassadeurs : Brodowski, Piotr (3x), Rollot, Florence (3x), Starck, Bodo (2x), Birk, Steffen (2x), Metz, Hartmut (2x), Malich, Burkhard, Dr. (2x), Jazdanovs, Aleksandrs (2x), Luque Saiz, Andres (2x)

5.e3 — 14.1% (258 parties)

Ambassadeurs : Malich, Burkhard, Dr. (2x), Boensch, Uwe (2x), Majunke, Rainer (2x), Pastor Alonso De Prado, Alberto (2x), Eising, Johannes (1x), Hottes, Dieter (1x), Dvoretzky, Mark (1x), Vaganian, Irina (1x)

5.Nh4 — 2.6% (48 parties)

Ambassadeurs : Habibi, Ali (2x), Hoeper, Heinz-Joachim (2x), Lisenko, Alexander V (1x), Romanishin, Oleg M (1x), Al Husari, Zita Fatima (1x), Makarczyk, Kazimierz (1x), Lombardy, William J (1x), Bosch van Rosenthal, Edzard (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	5.g3	5.d3	5.e3	5.Nh4
<1800	90	50%	30%	16%	1%
1800-2200	811	57%	24%	14%	3%
2200-2600	678	57%	22%	16%	3%
2600+	6	33%	67%	—	—

Évolution par décennie (% des parties)

Décennie	N parties	5.g3	5.d3	5.e3	5.Nh4
1950s	17	41%	41%	12%	6%
1960s	33	55%	18%	15%	9%
1970s	38	58%	24%	16%	3%
1980s	83	64%	16%	17%	1%
1990s	251	58%	23%	15%	1%
2000s	583	61%	23%	13%	1%
2010s	645	58%	24%	14%	3%
2020s	175	50%	22%	17%	9%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
5.g3	58%	50%	▼ -8.3%
5.d3	24%	22%	▼ -1.6%
5.e3	14%	17%	▲ +2.6%
5.Nh4	3%	9%	▲ +5.9%

Joueurs célèbres

Champions du monde dans cette position

Gukesh D — 1 partie

Parties historiques

5.g3 — 58.1% (1060 parties)

1952 — Garcia Vera, Romeo vs Maderna, Carlos — 0-1 — Mar del Plata ARG
1952 — Garcia Vera, Romeo vs Huguet, Horacio E — 1-0 — Buenos Aires ARG
1953 — Werner, Stephan vs Cherubim, Reinhard — 1/2-1/2 — Bielefeld
1954 — Vatnikov, Josif E vs Khasin, Abram — 1-0 — Moscow RUS
1955 — Stahlberg, Gideon vs Pachman, Ludek — 1/2-1/2 — Goteborg izt

5.d3 — 22.9% (418 parties)

1950 — Koberl, Ferenc vs Füster, Géza — 1-0 — Budapest HUN
1952 — Gonzalez, Ju vs Evans, Larry — 0-1 — Havana CUB
1952 — Napolitano, Mario vs Eros, Plata — 0-1 — Italy
1954 — Kotov, Alexander vs Bosch van Rosenthal, Edzard — 1-0 — Amsterdam NED
1955 — Sarosy, Zoltan L vs Fuster, Geza — 0-1 — Toronto/Ottawa/Hamilton CAN

5.e3 — 14.1% (258 parties)

1953 — Korchnoi, Viktor vs Panov, Vasily — 0-1 — Vilnius LTU
1956 — Truelsen, Ole Illum vs Mogensen, Lars Ole — 0-1 — Copenhagen DEN
1961 — Eising, Johannes vs Hottes, Dieter — 1-0 — FRG-ch Bad Prymont
1966 — Byrne, David vs Addison, Wiliam G — 1/2-1/2 — New York ch-USA
1967 — Dvoretzky, Mark vs Vaganian, Irina — 0-1 — ?

5.Nh4 — 2.6% (48 parties)

1954 — Al Husari, Zita Fatima vs Makarczyk, Kazimierz — 1/2-1/2 — Budapest tt Budapest HUN
1967 — Volovich, Anatoly vs Vaganian, Irina — 1-0 — Vilnius (Lithuania)
1968 — Lisenko, Alexander V vs Romanishin, Oleg M — 1/2-1/2 — Riga LAT
1969 — Lombardy, William J vs Bosch van Rosenthal, Edzard — 0-1 — Wijk aan Zee NED
1970 — Jakobsen, Ole vs Pomar Salamanca, Arturo — 1/2-1/2 — Kapfenberg etc

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