A12g — English: New York/London Defence

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

Ouverture — Centre semi-ouvert

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Avantages : case forte d4, case forte e5, Bb2 actif, paire de fous.
Faiblesses adverses : Bf8 enfermé, roi noir au centre.
Problèmes : roi au centre, Bf1 enfermé, 4 pièces non développées (B1, F1, A1, H1).
Plans :
● O-O — Mettre le roi en sécurité, connecter les tours
● e4 — Centre d4+e4, menace e5, libère Bf1
● Nc3 — Développer Nb1
● h3 — Empêcher ...Bg4
● d3 — Protéger e4, libérer Bc1

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Avantages : case forte e4, case forte g4, Bf5 actif, paire de fous.
Faiblesses adverses : Bf1 enfermé, roi blanc au centre.
Problèmes : roi au centre, Bf8 enfermé, 4 pièces non développées (B8, F8, A8, H8).
Plans :
● O-O — Mettre le roi en sécurité, connecter les tours
● ...Nbd7 — Développer Nb8
● ...Bd6 — Développer Bf8
● ...Bg4 — Clouer Nf3
● ...c5 — Rupture

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

A12g — New York/London Defence

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

Eval: [+0.29]

Les coups candidats

5.g3 — 58.9% (1082 parties)

Ambassadeurs : Stoeckl, Stephan (6x), Mooloo (5x), Meijers, Viesturs (5x), Blazeka, Matej (5x), Faldt, Magnus (4x), Dagon, Gilbert (4x), Lubczynski, Rafal (4x), Garcia Vera, Romeo (3x)

5.d3 — 22.4% (412 parties)

Ambassadeurs : Badea, Bela (3x), Brodowski, Piotr (3x), Zubritskiy, Artyom (3x), Blake, Joseph (2x), Füster, Géza (2x), Capablanca, Jose (2x), Horowitz, Albert Israel (2x), Starck, Bodo (2x)

5.e3 — 14.0% (258 parties)

Ambassadeurs : Cunanan, Kimberly Jane (3x), Reefschlaeger, Helmut, Dr. (2x), Malich, Burkhard, Dr. (2x), Majunke, Rainer (2x), Zhang, Pengxiang (2x), Mickiewicz, Piotr (2x), Dimitrijeski, Boris, Dr. (2x), Burmakin, Vladimir (2x)

5.Nh4 — 2.3% (43 parties)

Ambassadeurs : Habibi, Ali (2x), Hoeper, Heinz-Joachim (2x), Volovich, Anatoly (1x), Vaganian Rafael Agred (1x), Lisenko, Alexander V (1x), Romanishin, Oleg M (1x), Zita, Frantisek (1x), Makarczyk, Kazimierz (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	39	51%	23%	21%	3%
1800-2200	715	56%	25%	14%	3%
2200-2600	708	58%	22%	16%	2%
2600+	8	50%	50%	—	—

Évolution par décennie (% des parties)

Décennie	N parties	5.g3	5.d3	5.e3	5.Nh4
1920s	14	50%	29%	7%	—
1930s	24	83%	8%	8%	—
1940s	21	76%	5%	14%	—
1950s	17	41%	41%	12%	6%
1960s	33	55%	18%	15%	9%
1970s	38	58%	24%	16%	3%
1980s	79	63%	16%	16%	1%
1990s	250	58%	22%	15%	1%
2000s	582	61%	23%	13%	1%
2010s	635	58%	24%	14%	3%
2020s	145	52%	22%	17%	7%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
5.g3	58%	52%	▼ -6.2%
5.d3	24%	22%	▼ -1.6%
5.e3	14%	17%	▲ +2.4%
5.Nh4	3%	7%	▲ +4.2%

Joueurs célèbres

Champions du monde dans cette position

Euwe, Max — 2 parties
Alekhine, Alexander — 1 partie
Smyslov, Vladimir — 1 partie
Gukesh D — 1 partie

Parties historiques

5.g3 — 58.9% (1082 parties)

1924 — Villegas, Benito vs Belgrano Rawson, Luis — 0-1 — Buenos Aires ARG
1925 — Reti, Richard vs Tarrasch, Siegbert — 1/2-1/2 — Breslau GER
1925 — Rochlin, J. vs Levenfish, Grigory — 0-1 — Leningrad RUS
1925 — Réti, Richard vs Haida, August Konrad — 1/2-1/2 — Bratislava SVK
1926 — Reti, Richard vs Treybal, Karel — 1-0 — Semmering AUT

5.d3 — 22.4% (412 parties)

1924 — Scott, Roland Henry vs Blake, Joseph — 1-0 — Southport ENG
1924 — Loewenton, Leon vs Kleczynski, Jan — 0-1 — Paris FRA
1926 — Bolland, Benno vs Blake, Joseph — 1/2-1/2 — Weston-super-Mare
1926 — Sterk, Karoly vs Asztalos, Lajos — 0-1 — Bardejov
1931 — Capablanca, Jose vs Horowitz, Albert Israel — 1-0 — New York, NY USA

5.e3 — 14.0% (258 parties)

1925 — Tartakower, Savielly vs Przepiorka, Dawid — 1/2-1/2 — Hastings Town Hall
1935 — Florian, Jaromir vs Pokorny, Amos — 0-1 — ?
1937 — Abalos Collet, Alexandre vs Stahlberg, Gideon — 0-1 — Stockholm SWE
1943 — Zita, Frantisek vs Hromadka, Karel — 0-1 — Zlin CZE
1947 — Agustsson, Gudmundur vs Wade, Robert G — 0-1 — Reykjavik, Iceland

5.Nh4 — 2.3% (43 parties)

1954 — Zita, Frantisek vs Makarczyk, Kazimierz — 1/2-1/2 — Budapest tt Budapest HUN
1967 — Volovich, Anatoly vs Vaganian Rafael Agred — 1-0 — Vilnius (Lithuania)
1968 — Lisenko, Alexander V vs Romanishin, Oleg M — 1/2-1/2 — Riga LAT
1969 — Lombardy, William J vs Van Scheltinga, Theo — 0-1 — Wijk aan Zee NED
1970 — Jakobsen, Odinn Orn vs Pomar Salamanca, Arturo — 1/2-1/2 — Kapfenberg AUT

	♔ 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	semi-ouvert
Ruptures	● c4-c5, ● d2-d3, ● e2-e3	● …c6-c5, ● …d5-d4, ● …e7-e6, ● …e7-e5

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

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