Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● d2→e3, f2→e3	—
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	—	—
Cases faibles	—	—
Centre	● d5 (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	6 (● b1, ● g1, ● c1, ● f1, ● a1, ● h1)	6 (● b8, ● 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	mobile
Ruptures	● d2-d4, ● f2-f4	● …d7-d5

A20c — English: King’s, 2.e3

1.c4 e5 2.e3 * ● Trait aux Noirs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plans. Nc3 (Développer b1 — 53 % des parties) ; a3 (Préparer expansion aile dame — 18 % des parties) ; d4 (Occuper le centre — 14 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plans. ...Nf6 (Développer g8 — 63 % des parties) ; ...Nc6 (Développer b8 — 15 % des parties) ; ...d6 (Libérer Bc8 — 9 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Partie
1905 Ostende – Round 11 – Maroczy, Geza – 1-0 – Taubenhaus, Jean – G34 1. e3 e5 2. c4 f5 3. Nc3 Nf6 4. d4 Nc6 5. Nf3 e4 6. Nd2 Bb4 7. Be2 O-O 8. O-O Qe7 9. a3 Bxc3 10. bxc3 b6
1910 BCF Ch 7th – Round 10 – Blackburne, Joseph – 1-0 – Brown, Fred – G23 1. e3 e5 2. c4 d5 3. cxd5 Qxd5 4. Nc3 Qa5 5. Bc4 Bd6 6. Nf3 Nh6 7. a3 c6 8. Ne4 Qc7 9. b4 O-O 10. Bb2 Bg4
1920 Gothenburg – Round 4 – Tartakower, Savielly – 1-0 – Spielmann, Rudolf – G20 1. c4 e5 2. e3 Nc6 3. d4 exd4 4. exd4 d5 5. Nf3 Nf6 6. Be2 Be6 7. cxd5 Nxd5 8. O-O Be7 9. Bb5 O-O 10. Bxc6 bxc6
1923 Karlsbad – Round ? – Maroczy, Geza – 1/2-1/2 – Treybal, Karel – G143 1. c4 e5 2. e3 Nf6 3. a3 Nc6 4. Qc2 a5 5. b3 Bc5 6. Bb2 O-O 7. d3 d6 8. Nf3 Bf5 9. Nc3 Qe7 10. Ne4 Bg6
1923 Vienna – Round 2 – Takacs, Sandor – 1/2-1/2 – Gruenfeld, Ernst – G6 1. c4 e5 2. e3 Nf6 3. a3 Nc6 4. d3 d5 5. cxd5 Nxd5 6. Nf3 Be7 7. b4 Bf6 8. Ra2 O-O 9. Rc2 Nce7 10. Bb2 Bd7
1923 Vienna – Round 6 – Takacs, Sandor – 0-1 – Tartakower, Savielly – G28 1. c4 e5 2. e3 Nf6 3. a3 d5 4. cxd5 Nxd5 5. Nf3 Nc6 6. Qc2 Bd6 7. b4 Qe7 8. d3 O-O 9. Nbd2 a5 10. b5 Na7
1929 Karlsbad – Round 19 – Nimzowitsch, Aron – 1-0 – Spielmann, Rudolf – G201 1. e3 e5 2. c4 Nf6 3. Nf3 e4 4. Nd4 Nc6 5. Nb5 d5 6. cxd5 Nxd5 7. N1c3 Nf6 8. Qa4 Bf5 9. Nd4 Bd7 10. Nxc6 Bxc6
1930 Liege – Round 2 – Nimzowitsch, Aron – 1-0 – Pleci, L. – G8 1. e3 e5 2. c4 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4+ 6. Bd2 Bxd2+ 7. Qxd2 O-O 8. Nc3 d6 9. Be2 Re8 10. O-O Bd7
1936 Philadelphia ch-ACF – Round 11 – Santasiere, Anthony – 1-0 – Polland, D. – G10 1. c4 e5 2. e3 Nf6 3. Qc2 c5 4. Nf3 Nc6 5. Nc3 Be7 6. a3 O-O 7. b3 d5 8. cxd5 Nxd5 9. Bb2 Nxc3 10. Bxc3 f6
1944 La Plata Jockey Club – Round 12 – Rossetto, Hector – 1-0 – Graf-Stevenson, Sonja – G13 1. c4 e5 2. e3 Nf6 3. Nf3 Nc6 4. a3 e4 5. Nd4 Ne5 6. f4 Ng6 7. Qc2 c5 8. Nb5 b6 9. d4 exd3 10. Bxd3 Bb7
1950 Schiavno Zdroj – Round 1 – Barcza, Gedeon – 1/2-1/2 – Pytlakowski, Andrzej – G5 1. c4 e5 2. e3 Nf6 3. Be2 Nc6 4. d3 d5 5. cxd5 Nxd5 6. Nf3 Be7 7. O-O O-O 8. a3 Bf6 9. Qc2 Nb6 10. Nc3 a5
1953 NRW Ch – Round 1 – Hantke Rolf – 1-0 – Blank Goncalves, Eduardo – G1 1. c4 e5 2. e3 Nf6 3. Nf3 d6 4. Be2 c6 5. Nc3 Be7 6. O-O O-O 7. d4 e4 8. Nd2 d5 9. f3 exf3 10. Bxf3 Na6
1957 Manhattan CC Ch 5657 fin – Round 3 – Myers, Hugh – 0-1 – Shipman, Walter – G8 1. c4 e5 2. e3 Nf6 3. a3 Be7 4. Nc3 O-O 5. Nf3 Nc6 6. Qc2 d6 7. Be2 a5 8. O-O Bg4 9. Rd1 Re8 10. d4 exd4
1967 Montreal m – Round 18 – Brodie, Hugh – 1/2-1/2 – Streit, Howard – G17 1. c4 e5 2. e3 Nf6 3. g3 d5 4. cxd5 Nxd5 5. Bg2 Nc6 6. Ne2 Be6 7. O-O Qd7 8. Re1 Ndb4 9. a3 Nd3 10. Rf1 Bd5
1968 Lugano olm - Round 1 - Malagon Caballero, Alberto - 0-1 - Bednarski, Jacek - G313 1. e3 e5 2. c4 d6 3. Nc3 g6 4. d3 Bg7 5. Nf3 f5 6. Be2 Nf6 7. Qc2 O-O 8. Rb1 Kh8 9. b4 Be6 10. Bb2 Nbd7
World Blitz 2017 – Round 6.43 – Malakhatko, Vadim – 0-1 – Artemiev, Vladislav – G322 1. c4 e5 2. e3 g6 3. Nc3 Bg7 4. g3 h5 5. h3 d6 6. Bg2 c6 7. Nge2 f5 8. h4 Nf6 9. d4 Qe7 10. O-O a5
World Blitz 2018 – Round 10.37 – Timofeev, Artyom – 1/2-1/2 – Vallejo Pons, Francisco – G598 1. c4 e5 2. e3 d6 3. Nc3 Be7 4. g3 f5 5. Bg2 Nf6 6. d3 O-O 7. Nge2 Na6 8. O-O c6 9. e4 fxe4 10. dxe4 Be6
World Blitz 2018 – Round 4.14 – Timofeev, Artyom – 1/2-1/2 – Ponkratov, Pavel – G211 1. c4 e5 2. e3 f5 3. Nc3 Nf6 4. g3 c6 5. Bg2 d5 6. cxd5 cxd5 7. Qb3 e4 8. d3 Na6 9. d4 Nc7 10. Nge2 Bd6

A20c — King’s (1905)

1.c4 e5 2.e3

Les coups candidats

2…Nf6 — 63.2% (1418 parties)

Ambassadeurs : Malakhatko, Vadim (22x), Timofeev, Artyom (21x), Rodgaard, John (13x), Josefsson, Kenneth (12x), Kabanova, Ekaterina (9x), Farias, Sergio Roberto Alves (9x), ? (8x), Shenker, Sabrina (6x)

2…Nc6 — 15.4% (346 parties)

Ambassadeurs : Hintyes, Helmuth (5x), Rodgaard, John (3x), Vicanek, Josef (3x), Anelli, Antonio (2x), Dubinin, Peter (2x), Stavast, Dick (2x), Polgar, Sofia (2x), Koolsbergen, Nico (2x)

2…d6 — 9.4% (211 parties)

Ambassadeurs : Rodgaard, John (11x), Weiss, Siegfried (3x), Hoi, Carsten (3x), Timofeev, Artyom (3x), Malagon Martinez, Alberto Jose (2x), Brodie, Hugh (2x), Haapasalo, Jukka-Pekka (2x), Slobodjan, Roman (2x)

2…g6 — 3.0% (67 parties)

Ambassadeurs : Hellmayr, Alois (2x), Biedekoepper, Robert (2x), Bragg, David (2x), Haapasalo, Jukka-Pekka (1x), Pyhala, Antti (1x), Welin, Thomas (1x), Bjerring, Kai (1x), CHIROMO BANDA PALESSA (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	2…Nf6	2…Nc6	2…d6	2…g6
<1800	209	59%	13%	6%	5%
1800-2200	834	62%	17%	9%	2%
2200-2600	752	69%	12%	11%	5%
2600+	36	89%	—	3%	3%

Évolution par décennie (% des parties)

Décennie	N parties	2…Nf6	2…Nc6	2…d6	2…g6
1950s	9	89%	11%	—	—
1960s	14	64%	7%	21%	—
1970s	21	62%	24%	10%	5%
1980s	69	59%	14%	12%	6%
1990s	305	54%	18%	16%	3%
2000s	606	60%	17%	9%	2%
2010s	842	67%	15%	8%	3%
2020s	377	68%	12%	8%	4%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
2…Nf6	67%	68%	▲ +1.2%
2…Nc6	15%	12%	▼ -2.5%
2…d6	8%	8%	+0.4%
2…g6	3%	4%	▲ +0.7%

Joueurs célèbres

Champions du monde dans cette position

Carlsen, Magnus — 5 parties
Anand, Viswanathan — 2 parties

Parties historiques

2…Nf6 — 63.2% (1418 parties)

1950 — Anay Barche vs Tarnowski, Alfred — 1-0 — Schiavno Zdroj
1950 — Anay Barche vs Pytlakowski, Andrzej — 1/2-1/2 — Schiavno Zdroj
1952 — Abis, Roberto Angelo vs Grivainis, Konstantin — 1/2-1/2 — Latvian Exiles 5254
1953 — Hantke, Rolf vs Blank, Albert Jan — 1-0 — Bielefeld
1955 — Bereczki, Peter vs Magyar, Gyula — 1-0 — Pecs

2…Nc6 — 15.4% (346 parties)

1956 — Schroeder, Hannes vs Lieb, Harald — 0-1 — Hitzacker
1963 — Schallehn, Dieter vs Bauer, Erich — 1/2-1/2 — Leipzig GER
1973 — Garcia, Horacio Pedro vs Anelli, Antonio — 1/2-1/2 — Pinamar ARG
1973 — Garcia , Hector vs Anelli, Antonio — 1/2-1/2 — Pinamar tt Pinamar ARG
1974 — Meyer, Eugene vs Brown, Mark — 1-0 — New York, NY USA

2…d6 — 9.4% (211 parties)

1966 — White, John vs Vogt, Lothar — 1/2-1/2 — Erfurt GER
1968 — Malagon Martinez, Alberto Jose vs Da Costa, Renan Levy — 0-1 — Lugano olm
1968 — Malagon Martinez, Alberto Jose vs Bednarski, Jacek — 0-1 — Lugano olm
1972 — Duval, Michel vs Brodie, Hugh — 0-1 — Quebec CAN
1975 — Barczay, Laszlo vs Moehring, Guenther — 1-0 — Kecskemet HUN

2…g6 — 3.0% (67 parties)

1975 — Oranczak vs Carlson, Curtis — 1-0 — cr.
1987 — Haapasalo, Jukka-Pekka vs Pyhala, Antti — 0-1 — Jyvaskyla SM
1987 — Welin, Thomas vs Bjerring, Kai — 1/2-1/2 — Stockholm SWE
1988 — CHIROMO BANDA PALESSA vs Krnic, Zdenko — 0-1 — GMA-Open Belgrade YUG
1988 — Patrat, M. vs Naudier, Serge — 1-0 — Paris op ch

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