A20h — English: King’s, 2.g3 c6

1.c4 e5 2.g3 c6 * ○ Trait aux Blancs

Ouverture — Centre semi-ouvert

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

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Atouts. Les Blancs s'appuient sur la paire de fous.

Côté adverse. Les fous enfermés en c8 et f8 et le roi resté au centre.

En contrepartie. Le roi n'est pas encore à l'abri et plusieurs pièces dorment encore (les cavaliers b1 et g1, les fous c1 et f1 et les tours a1 et h1).

Plans. O-O (Mettre le roi en sécurité, connecter les tours) ; e4 (Centre d4+e4, libère Bf1) ; Nc3 (Développer Nb1) ; Nf3 (Développer Ng1) ; d3 (Libérer Bc1).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

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Atouts. Les Noirs s'appuient sur la paire de fous.

Côté adverse. Les fous enfermés en c1 et f1 et le roi resté au centre.

En contrepartie. Le roi n'est pas encore à l'abri et plusieurs pièces dorment encore (les cavaliers b8 et g8, les fous c8 et f8 et les tours a8 et h8).

Plans. O-O (Mettre le roi en sécurité, connecter les tours) ; ...d6 (Libérer Bc8) ; ...Nf6 (Développer Ng8) ; ...Be7 (Développer Bf8) ; ...c5 (Rupture).

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● f2→g3, h2→g3	● b7→c6, d7→c6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	—	—
Cases faibles	—	—
Centre	—	● d4 (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	semi-ouvert
Ruptures	● c4-c5, ● d2-d3, ● e2-e3, ● f2-f3	● …c6-c5, ● …d7-d6, ● …d7-d5, ● …e5-e4, ● …f7-f6, ● …f7-f5

Partie
1938 Canada ch Toronto – Round 6 – Holowach, Walter – 1-0 – Yanofsky, Daniel Abraham – G6 1. c4 e5 2. g3 c6 3. Bg2 d5 4. cxd5 cxd5 5. Qb3 Nf6 6. Nc3 e4 7. d3 exd3 8. Nxd5 dxe2 9. Nxe2 Nc6 10. O-O Be7
1958 HUN Ch 13th – Round 9 – Laszlo, Deli – 0-1 – Kluger, Gyula – G71 1. c4 e5 2. g3 c6 3. Bg2 d5 4. cxd5 cxd5 5. d3 Nc6 6. Nf3 Bb4+ 7. Nfd2 Nf6 8. O-O O-O 9. Nc3 Be6 10. a3 Be7
1961 URU Ch sf – Round ? – Silva Nazzari, Roberto – 1-0 – Elemberg, Norberto – G1 1. c4 e5 2. g3 c6 3. Bg2 d5 4. cxd5 cxd5 5. Nc3 Be6 6. Qb3 Nf6 7. Qxb7 Nbd7 8. Nxd5 Rb8 9. Nxf6+ gxf6 10. Qxa7 Bc5
1962 Candidats Tournament – Round 3 – Benko, Pal – 1/2-1/2 – Tal, Mikhail – G10 1. g3 e5 2. c4 c6 3. Nf3 e4 4. Nd4 d5 5. d3 Nf6 6. Bg2 Bc5 7. Nb3 Bb4+ 8. Bd2 Bxd2+ 9. Qxd2 dxc4 10. dxc4 Qe7
1964 Liberation – Round 6 – Benko, Pal – 1/2-1/2 – Zuidema, Coen – G17 1. g3 e5 2. c4 c6 3. Nf3 e4 4. Nd4 d5 5. d3 Bb4+ 6. Bd2 Qb6 7. Bxb4 Qxb4+ 8. Qd2 Qxd2+ 9. Nxd2 exd3 10. e3 Nf6
1965 Tallinn ch-URS – Round 1 – Bukhman, Eduard – 0-1 – Osnos, Viatcheslav – G7 1. c4 e5 2. g3 c6 3. Bg2 d6 4. d4 Nd7 5. e3 Ngf6 6. Nc3 Be7 7. Nf3 O-O 8. O-O a6 9. Qc2 Re8 10. b4 Bf8
1966 La Habana olm prel – Round 4 – Ujtelky, Maximilian – 1-0 – Chariklis, Christakis – G120 1. c4 e5 2. g3 c6 3. Bg2 Bc5 4. Nc3 a6 5. e3 Ne7 6. Nge2 d5 7. d4 exd4 8. exd4 Ba7 9. c5 b5 10. b4 O-O
1966 WchTJ U26 fin-A – Round 8 – Spiridonov, Nikola – 1-0 – Zuidema, Coen – G48 1. c4 e5 2. g3 c6 3. Nf3 e4 4. Nd4 d5 5. cxd5 cxd5 6. Bg2 Qb6 7. Nc2 Nf6 8. O-O Be7 9. d3 Bf5 10. Ne3 Qe6
1969 Hoogovens-B – Round 13 – Ujtelky, Maximilian – 1/2-1/2 – Hartoch, Robert G – G71 1. c4 e5 2. g3 c6 3. d3 d5 4. Nd2 g6 5. Bg2 Ne7 6. b3 Bg7 7. Ba3 Be6 8. Ngf3 h6 9. O-O O-O 10. e4 d4
1971 Candidats sf2 – Round 9 – Petrosian, Tigran L. – 1-0 – Korchnoi, Viktor – G1 1. c4 e5 2. g3 c6 3. b3 d5 4. Bb2 d4 5. Nf3 Bd6 6. d3 c5 7. Bg2 Ne7 8. O-O Nec6 9. e3 O-O 10. Nbd2 Be6
1973 Leningrad Interzonal – Round 8 – Larsen, Bent – 0-1 – Korchnoi, Viktor – G6 1. c4 e5 2. g3 c6 3. Nf3 e4 4. Nd4 d5 5. cxd5 Qxd5 6. Nb3 Nf6 7. Bg2 Qh5 8. h3 Qg6 9. Nc3 Nbd7 10. Qc2 e3
20. European Teams 2015 – Round 7.7 – Navara, David – 1/2-1/2 – Nisipeanu, Liviu-Dieter – G314 1. c4 e5 2. g3 c6 3. Nf3 e4 4. Nd4 d5 5. cxd5 Qxd5 6. Nc2 Nf6 7. Nc3 Qh5 8. Ne3 Bc5 9. Qc2 Bxe3 10. fxe3 Bf5
3. Norway Blitz 2015 – Round 8.1 – Nakamura, Hikaru – 1-0 – Aronian, Levon – G36 1. c4 e5 2. g3 c6 3. Nf3 e4 4. Nd4 d5 5. cxd5 Qxd5 6. Nc2 Nf6 7. Nc3 Qh5 8. h3 Na6 9. Bg2 Qg6 10. b3 Bc5
4. Norway Blitz 2016 – Round 6.3 – Grandelius, Nils – 0-1 – Giri, Anish – G28 1. c4 e5 2. g3 c6 3. Nf3 e4 4. Nd4 d5 5. cxd5 Qxd5 6. Nc2 Nf6 7. Nc3 Qe5 8. Bg2 Be7 9. O-O O-O 10. f4 exf3
6. World Blitz 2010 – Round 19.5 – Aronian, Levon – 1-0 – Svidler, Peter – G136 1. c4 e5 2. g3 c6 3. Nf3 e4 4. Nd4 d5 5. cxd5 Qxd5 6. Nc2 Nf6 7. Nc3 Qh5 8. h3 Na6 9. Bg2 Qg6 10. Rb1 Nb4
8. Sinquefield Cup 2021 – Round 7.2 – So, Wesley – 1/2-1/2 – Shankland, Sam – G32 1. c4 e5 2. g3 c6 3. Nf3 e4 4. Nd4 d5 5. cxd5 Qxd5 6. Nc2 Nf6 7. Nc3 Qe5 8. Bg2 Na6 9. O-O Be7 10. d4 exd3
84. Tata Steel Masters 2022 – Round 1.3 – Giri, Anish – 1/2-1/2 – Praggnanandhaa R – G3 1. c4 e5 2. g3 c6 3. Nf3 e4 4. Nd4 d5 5. cxd5 Qxd5 6. Nc2 Nf6 7. Nc3 Qe5 8. Bg2 Na6 9. O-O Be7 10. Ne1 Nb4
European Club Cup 2015 – Round 3.2 – Grachev, Boris – 1/2-1/2 – Korobov, Anton – G43 1. c4 e5 2. g3 c6 3. Nf3 e4 4. Nd4 Nf6 5. Bg2 d5 6. d3 exd3 7. Qxd3 dxc4 8. Qxc4 Nbd7 9. O-O Nb6 10. Qd3 Be7
FIDE Candidates 2020 – Round 7.4 – Giri, Anish – 1/2-1/2 – Grischuk, Alexander – G28 1. c4 e5 2. g3 c6 3. Nf3 e4 4. Nd4 d5 5. cxd5 Qxd5 6. Nc2 Nf6 7. Nc3 Qe5 8. Bg2 Na6 9. O-O Be7 10. Ne3 h5
FIDE Candidates 2022 – Round 1.2 – Ding, Liren – 0-1 – Nepomniachtchi, Ian – G2 1. c4 e5 2. g3 c6 3. Nf3 e4 4. Nd4 d5 5. cxd5 Qxd5 6. Nc2 Nf6 7. Nc3 Qe5 8. Bg2 Na6 9. O-O Be7 10. Ne3 O-O
FIDE World Cup 2019 – Round 6.1 – Ding, Liren – 1/2-1/2 – Yu, Yangyi – G412 1. c4 e5 2. g3 c6 3. Nf3 e4 4. Nd4 d5 5. d3 Bc5 6. Nb3 Bb4+ 7. Bd2 Bxd2+ 8. Qxd2 dxc4 9. dxc4 f5 10. Nc3 Qxd2+
FIDE World Cup 2025 – Round R3 Classical 2 – Samuel Sevian – 1/2-1/2 – Evgeniy Najer – G491 1. c4 e6 2. Nc3 d5 3. d4 Nf6 4. Nf3 Nbd7 5. Bf4 dxc4 6. e3 a6 7. a4 Nb6 8. Bg5 Bb4 9. a5 Nbd5 10. Qc2 O-O
Norway Chess blitz 2nd 2014 – Round 7.4 – Svidler, Peter – 1-0 – Topalov, Veselin – G27 1. c4 e5 2. g3 c6 3. Nf3 e4 4. Nd4 d5 5. cxd5 Qxd5 6. Nc2 Nf6 7. Nc3 Qh5 8. d3 exd3 9. Qxd3 Na6 10. Bg2 Bh3
Saint Louis Blitz 2023 – Round 3.1 – Firouzja, Alireza – 0-1 – Vachier-Lagrave, Maxime – G11 1. c4 e5 2. g3 c6 3. Nf3 e4 4. Nd4 d5 5. cxd5 Qxd5 6. Nc2 Nf6 7. Nc3 Qe5 8. Bg2 Na6 9. Rb1 h5 10. h3 Bf5
Superbet Blitz 2023 – Round 3.4 – Giri, Anish – 0-1 – Vachier-Lagrave, Maxime – G14 1. c4 e5 2. g3 c6 3. Nf3 e4 4. Nd4 d5 5. cxd5 Qxd5 6. Nc2 Nf6 7. Nc3 Qe5 8. Bg2 Na6 9. O-O Be7 10. Ne1 h5
Vugar Gashimov Mem 2015 – Round 7.2 – Anand, Viswanathan – 1-0 – Adams, Michael – G31 1. c4 e5 2. g3 c6 3. Nf3 e4 4. Nd4 d5 5. cxd5 Qxd5 6. Nc2 Nf6 7. Nc3 Qh5 8. Ne3 Bc5 9. Qc2 Bxe3 10. fxe3 Qe5
World Blitz 2015 – Round 1.42 – Kovalenko, Igor – 1-0 – Petursson, Margeir – G34 1. c4 e5 2. g3 c6 3. Nf3 e4 4. Nd4 d5 5. cxd5 Qxd5 6. Nc2 Nf6 7. Nc3 Qh5 8. Ne3 Bc5 9. Qc2 Bxe3 10. dxe3 Bf5
World Blitz 2019 – Round 3.48 – Iturrizaga Bonelli, Eduardo – 1-0 – Gajewski, Grzegorz – G198 1. c4 e5 2. g3 c6 3. Nf3 d6 4. Nc3 f5 5. d4 e4 6. Ng5 Nf6 7. Bg2 d5 8. Qb3 Qb6 9. c5 Qd8 10. f3 h6
World Blitz 2019 – Round 6.14 – Tomashevsky, Evgeny – 1-0 – Grischuk, Alexander – G386 1. c4 e5 2. g3 c6 3. Nf3 e4 4. Nd4 d5 5. cxd5 Qxd5 6. Nc2 Nf6 7. Nc3 Qe5 8. Bg2 Na6 9. O-O Be7 10. d3 exd3
World Blitz 2019 – Round 7.23 – Iturrizaga Bonelli, Eduardo – 1-0 – Bluebaum, Matthias – G468 1. c4 e5 2. g3 c6 3. Nf3 e4 4. Nd4 d5 5. cxd5 Qxd5 6. e3 Nf6 7. Nc3 Qe5 8. d3 Bb4 9. Bg2 Na6 10. O-O exd3
World Blitz 2021 – Round 14.38 – Tazbir, Marcin – 1/2-1/2 – Petrosyan, Manuel – G834 1. c4 e5 2. g3 c6 3. Nf3 d6 4. Bg2 g6 5. O-O Bg7 6. Nc3 Nd7 7. Rb1 f5 8. d3 a5 9. a3 h6 10. e4 Ne7
World Blitz 2021 – Round 21.41 – Tazbir, Marcin – 0-1 – Hovhannisyan, Razmik – G1232 1. c4 e5 2. g3 c6 3. Nf3 e4 4. Nd4 d5 5. d3 Bc5 6. Nb3 Bb4+ 7. Bd2 Bxd2+ 8. Qxd2 dxc4 9. dxc4 f5 10. Qxd8+ Kxd8
World Blitz 2022 – Round 13.39 – Tomashevsky, Evgeny – 0-1 – Makhnev, Denis – G695 1. c4 e5 2. g3 c6 3. Nf3 e4 4. Nd4 d5 5. cxd5 Qxd5 6. Nc2 Nf6 7. Nc3 Qe5 8. Bg2 Be7 9. O-O O-O 10. b4 Bf5
World Rapid 2019 – Round 13.5 – Svidler, Peter – 1/2-1/2 – Grischuk, Alexander – G857 1. c4 e5 2. g3 c6 3. Nf3 e4 4. Nd4 d5 5. cxd5 Qxd5 6. e3 Nf6 7. Nc3 Qe5 8. d3 Bc5 9. dxe4 Nxe4 10. Bg2 Nxc3
World Rapid 2019 – Round 15.55 – Petrosyan, Manuel – 1-0 – Khanin, Semen – G989 1. c4 e5 2. g3 c6 3. Bg2 d5 4. cxd5 cxd5 5. d4 e4 6. Nc3 Nf6 7. Bg5 Bb4 8. Rc1 O-O 9. e3 Nbd7 10. Ne2 h6
World Rapid 2021 – Round 10.57 – Sadhwani, Raunak – 1/2-1/2 – Ter-Sahakyan, Samvel – G606 1. c4 e5 2. g3 c6 3. Nf3 e4 4. Nd4 d5 5. cxd5 Qxd5 6. Nc2 Nf6 7. Nc3 Qe5 8. Bg2 Na6 9. Ne3 Be7 10. Qc2 Nc5
World Rapid 2021 – Round 4.36 – Christiansen, Johan-Sebastian – 0-1 – Saric, Ivan – G224 1. c4 e5 2. g3 c6 3. Nf3 e4 4. Nd4 d5 5. cxd5 Qxd5 6. Nc2 Nf6 7. Nc3 Qe5 8. Bg2 Na6 9. O-O Be7 10. Nxe4 Nxe4

A20h — King’s

1.c4 e5 2.g3 c6

Eval: [+0.25]

Les coups candidats

3.d4 — 51.7% (1756 parties) →

Ambassadeurs : Raetsky, Alexander (14x), Suba, Mihai (12x), Almarza Mato, Carlos (11x), Miezis, Normunds (10x), Malinowski, Damian (9x), Navara, David (9x), Moujan, Pablo Miguel (9x), Videki, Sandor (8x)

3.Nf3 — 23.7% (805 parties)

Ambassadeurs : Zwardon, Vojtech (12x), Hammer, Jon Ludvig (9x), Navara, David (9x), Iturrizaga Bonelli, Eduardo (8x), Aditya Tari (7x), Tran, Tuan Minh (6x), Sadhwani, Raunak (6x), Golcman, Evgeny (5x)

3.Bg2 — 21.3% (722 parties)

Ambassadeurs : Thiel, Kay (9x), Kaposztas, Miklos (7x), Kulon, Klaudia (7x), Kouskoutis, Georgios-Alexandros (5x), Vaulin, Alexander P. (4x), Gyimesi, Zoltan (4x), Markowski, Tadeusz (4x), Walton, John C. (4x)

3.Nc3 — 1.5% (52 parties)

Ambassadeurs : Perez Cascella, Julio (1x), Benko, Francisco (1x), Starczewska, Malgorzata (1x), Klimaszewska, Amelia (1x), Catteau, Ludovic (1x), Galioto, Giovanni (1x), Remy, Janina (1x), Weber, Kristina (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	3.d4	3.Nf3	3.Bg2	3.Nc3
<1800	105	41%	7%	42%	6%
1800-2200	1026	53%	18%	27%	2%
2200-2600	1771	54%	29%	15%	1%
2600+	175	48%	46%	4%	1%

Évolution par décennie (% des parties)

Décennie	N parties	3.d4	3.Nf3	3.Bg2	3.Nc3
1930s	1	—	—	100%	—
1950s	3	67%	—	33%	—
1960s	14	7%	43%	36%	7%
1970s	26	12%	27%	54%	—
1980s	80	52%	19%	26%	—
1990s	295	51%	12%	31%	1%
2000s	555	61%	6%	28%	3%
2010s	1406	56%	19%	21%	2%
2020s	1017	42%	43%	13%	1%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
3.d4	56%	42%	▼ -14.0%
3.Nf3	19%	43%	▲ +23.4%
3.Bg2	21%	13%	▼ -8.1%
3.Nc3	2%	1%	▼ -1.2%

Joueurs célèbres

Champions du monde dans cette position

Anand, Viswanathan — 4 parties
Carlsen, Magnus — 3 parties
Ding, Liren — 3 parties
Ju, Wenjun — 3 parties
Tal, Mikhail — 1 partie
Gukesh D — 1 partie

Parties historiques

3.d4 — 51.7% (1756 parties)

1956 — Bruemmer, Ullrich vs Troeger, Rainer — 1/2-1/2 — Zittau
1959 — Jaeger, Walter vs Hinne, Jobst — 1-0 — Nuerenberg GER
1965 — Uogele, Anicetas vs Mikenas, Vladas — 1-0 — ?
1973 — Ribli, Zoltan vs Perez Parilla, Enique — 1-0 — Lanzarote
1977 — James, Geoffrey H vs Helmrich H — 1-0 — Hastings ENG

3.Nf3 — 23.7% (805 parties)

1961 — Barcza, Gedeon vs Donner, Jan-Hein — 0-1 — Maroczy mem Budapest HUN
1962 — Benko, Pal vs Tal, Mikhail — 1/2-1/2 — Curacao AHO
1964 — Benko, Pal vs Zuidema, Coen — 1/2-1/2 — Belgrade SRB
1966 — Spiridonov, Nikola vs Zuidema, Coen — 1-0 — WchTJ U26 fin-A
1968 — Kimelfeld, Rudolf vs Gergel, Vladimir P — 1-0 — Soviet Union

3.Bg2 — 21.3% (722 parties)

1938 — Holowach, Walter vs Yanofsky, Daniel Abraham — 1-0 — Canada ch Toronto
1958 — Laszlo, Deli vs Kluger, Gyula — 0-1 — Budapest HUN
1961 — Podolsky, Horst vs Zinn, Lothar — 0-1 — Warsaw POL
1961 — Silva Nazzari, Roberto vs Elemberg, Norberto — 1-0 — Uruguay
1963 — Sazonov L vs Litvinov, Viktor — 1-0 — Minsk BLR

3.Nc3 — 1.5% (52 parties)

1968 — Perez Cascella, Julio vs Benko, Francisco — 0-1 — Buenos Aires ARG
1995 — Catteau, Ludovic vs Galioto, Giovanni — 0-1 — Cappelle la Grande FRA
1996 — Starczewska, Malgorzata vs Klimaszewska, Amelia — 1/2-1/2 — Augustow
2000 — Barks, Leonard J vs Del Pozo Hernandez, Jose Maria — 0-1 — IECC
2003 — Kuge Thomas A vs Regis Venter Paulo — 1-0 — ?

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