Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● f2→g3, h2→g3	● d6→e5, c7→d6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● d5 (2v0)	—
Cases faibles	—	—
Centre	● d5 (2v0), ● e4 (1v0)	● d4 (1v0), ● e5 (1v0)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 0)
Bg2	● Bg2 Actif (mob. 7)
Bc8		● Bc8 Non développé (mob. 5)
Bf8		● Bf8 Non développé (mob. 1)
Paire de fous	● Oui	● Oui
Non développées	5 (● b1, ● g1, ● c1, ● 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	● c4-c5, ● d2-d4, ● f2-f4	● …d6-d5

A20p — English: King’s, 2.g3 d6

1.c4 e5 2.g3 d6 3.Bg2 * ● Trait aux Noirs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plans. Nc3 (Développer b1 — 72 % des parties) ; d4 (Occuper le centre — 14 % des parties) ; d3 (Solidifier le centre — 6 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plans. ...f5 (Attaque à l'aile roi — 47 % des parties) ; ...g6 (Préparer le fianchetto — 22 % des parties) ; ...Nc6 (Développer b8 — 13 % des parties) ; ...Nf6 (Développer g8 — 7 % des parties) ; ...c6 (Renforcer le centre — 6 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Partie
? 1998 – Round ? – KEB – 0-1 – Kasparov, Garry – G1 1. c4 e5 2. g3 d6 3. Bg2 f5 4. Nc3 Nf6 5. d4 Be7 6. e3 O-O 7. Nge2 c6 8. O-O a5 9. c5 e4 10. cxd6 Bxd6
1953 Zagreb – Round 3 – Udovcic, Mijo – 0-1 – Nikolac, Juraj – G39 1. c4 e5 2. g3 d6 3. Bg2 f5 4. Nc3 Nf6 5. e3 c6 6. Nge2 Be7 7. O-O O-O 8. d4 Na6 9. a3 Nc7 10. e4 Qe8
1956 Budapest Szikra – Round ? – Bilek, Istvan – 0-1 – Ban, Jeno – G4 1. c4 d6 2. g3 e5 3. Bg2 f5 4. d4 Nf6 5. Nc3 c6 6. e4 exd4 7. Qxd4 Be7 8. Nge2 O-O 9. exf5 Bxf5 10. O-O Na6
1957 Zittau-A 6th – Round 9 – Schlieder, Rolf – 1/2-1/2 – Braun, Gottfried, Dr. – G10 1. c4 d6 2. g3 e5 3. Bg2 f5 4. Nc3 Nf6 5. e3 Be7 6. Nge2 O-O 7. O-O Qe8 8. d4 Nc6 9. b3 Qh5 10. Ba3 Re8
1959 Zuerich – Round 1 – Nievergelt, Erwin – 0-1 – Barcza, Gedeon – G2 1. c4 e5 2. g3 d6 3. Bg2 Be7 4. Nc3 c6 5. Nf3 f5 6. O-O Nf6 7. d4 e4 8. Ne1 O-O 9. f3 d5 10. cxd5 cxd5
1960 Budapest zt – Round 1 – Ujtelky, Maximilian – 0-1 – Barcza, Gedeon – G1 1. c4 e5 2. g3 d6 3. Bg2 f5 4. e3 Nf6 5. d4 Be7 6. Ne2 c6 7. b3 O-O 8. Bb2 Nbd7 9. Nbc3 Qe8 10. a4 a5
1961 Marianske Lazne zt – Round 2 – Filip, Miroslav – 1/2-1/2 – Olafsson, Fridrik – G8 1. c4 e5 2. g3 d6 3. Bg2 g6 4. Nc3 Bg7 5. Nf3 Nc6 6. O-O Nge7 7. d3 O-O 8. Rb1 Bg4 9. h3 Bd7 10. Ne1 a6
1961 Reggio Emilia 6162 – Round ? – Haag, Ervin – 1/2-1/2 – Giustolisi, Alberto – G2 1. c4 e5 2. g3 d6 3. Bg2 g6 4. Nc3 Bg7 5. Nf3 Ne7 6. O-O Nbc6 7. Rb1 Bf5 8. d3 Qc8 9. Re1 O-O 10. b4 Bh3
1961 ROM Ch – Round 2 – Urseanu, Veniamin – 0-1 – Szabo, Iuliu inactive – G8 1. c4 e5 2. g3 d6 3. Bg2 f5 4. Nc3 g6 5. d3 Bg7 6. e4 Ne7 7. Nge2 Nbc6 8. Rb1 O-O 9. O-O Be6 10. Nd5 Qd7
1962 Spartak Ch – Round 7 – Khasin, Abram – 1/2-1/2 – Bannik, Anatolij – G55 1. g3 e5 2. c4 d6 3. Bg2 g6 4. Nf3 Bg7 5. d4 Nc6 6. dxe5 dxe5 7. Qxd8+ Nxd8 8. Nc3 h6 9. Be3 Ne6 10. O-O-O Ne7
1962 URS Team Ch – Round 1 – Kotov Lundqvist, Alex – 1/2-1/2 – Lein, Andreas – G126 1. g3 e5 2. Bg2 d6 3. c4 g6 4. d4 Nd7 5. Nc3 Bg7 6. Nf3 Ne7 7. O-O O-O 8. e4 Nc6 9. Bg5 Bf6 10. Bxf6 Nxf6
1962 Zuerich Seniors – Round ? – Mueller, Hans – 1/2-1/2 – Johner, Hans – G29 1. g3 e5 2. c4 d6 3. Bg2 f5 4. e3 g6 5. d4 Nd7 6. Ne2 Bg7 7. Nbc3 Ne7 8. Rb1 a5 9. b3 O-O 10. O-O Rb8
1964 Kecskemet zt – Round 1 – Bilek, Istvan – 1/2-1/2 – Bednarski, Jacek – G9 1. g3 e5 2. Bg2 d6 3. c4 Be7 4. Nc3 f5 5. d4 Nf6 6. Nf3 Nbd7 7. O-O c6 8. Bh3 g6 9. dxe5 Nxe5 10. Nxe5 dxe5
1964 Sarajevo 07th – Round 9 – Bukic, Enver – 0-1 – Matulovic, Milan – G22 1. g3 e5 2. Bg2 d6 3. c4 f5 4. Nc3 c6 5. d3 Nf6 6. Nf3 g6 7. O-O Bg7 8. Rb1 O-O 9. b4 Re8 10. b5 d5
1967 Atlanta – Round 1 – Benko, Pal – 1-0 – Formanek, Eduard – G8 1. g3 e5 2. c4 d6 3. Bg2 f5 4. d4 e4 5. f3 exf3 6. exf3 Nf6 7. Nc3 g6 8. Nge2 Bg7 9. O-O O-O 10. Be3 Re8
1967 CSR Ch – Round 13 – Ujtelky, Maximilian – 0-1 – Lechtynsky, Jiri – G85 1. c4 e5 2. g3 d6 3. Bg2 f5 4. Nc3 Nf6 5. b4 Be7 6. Bb2 O-O 7. d3 a5 8. b5 Nbd7 9. Na4 Qe8 10. e3 f4
1967 US Open – Round 11 – Benko, Pal – 1-0 – Formanek, Edward – G36 1. g3 e5 2. c4 d6 3. Bg2 f5 4. d4 e4 5. f3 exf3 6. exf3 Nf6 7. Nc3 g6 8. Nge2 Bg7 9. O-O O-O 10. Be3 Re8
1969 Buesum – Round 1 – Bilek, Istvan – 1/2-1/2 – Zaitsev, Alexander – G6 1. g3 e5 2. Bg2 d6 3. c4 f5 4. Nc3 Nf6 5. e3 c6 6. d4 Qc7 7. Nge2 Be7 8. O-O h5 9. e4 h4 10. Qd3 g6
1969 Hoogovens-B – Round 8 – Ujtelky, Maximilian – 1/2-1/2 – Honfi, K. – G44 1. c4 e5 2. g3 d6 3. Bg2 g6 4. b3 Bg7 5. Bb2 Nf6 6. Nf3 O-O 7. O-O c6 8. d3 Re8 9. Nbd2 Nbd7 10. Qc2 a5
1969 Praia da Rocha zt – Round 4 – Bilek, Istvan – 1/2-1/2 – ? – G7 1. c4 e5 2. g3 d6 3. Bg2 g6 4. Nc3 Bg7 5. d3 f5 6. e4 Nc6 7. Nge2 Nh6 8. exf5 Bxf5 9. O-O Qd7 10. d4 Nf7
41. Olympiad Open 2014 – Round 4.37 – Munoz Santana, Jose Lisandro – 0-1 – Amin, Bassem – G290 1. c4 e5 2. g3 d6 3. Bg2 g6 4. Nc3 Bg7 5. d3 c6 6. e4 f5 7. Nge2 Nf6 8. O-O O-O 9. exf5 gxf5 10. d4 Na6
42. Olympiad 2016 – Round 4.5 – Yu, Yangyi – 1/2-1/2 – Brunello, Sabino – G297 1. c4 e5 2. g3 d6 3. Bg2 f5 4. d4 Be7 5. Nc3 Nf6 6. Nh3 O-O 7. O-O h6 8. b3 c6 9. d5 c5 10. f4 e4
GCT Blitz Croatia 2021 – Round 16.2 – Nepomniachtchi, Ian – 1/2-1/2 – Grischuk, Alexander – G77 1. c4 e5 2. g3 d6 3. Bg2 f5 4. Nc3 Nf6 5. e3 a5 6. d4 Be7 7. b3 O-O 8. Bb2 c6 9. Nge2 Na6 10. O-O Qe8
Olympiad 2002 – Round 8 – Matamoros Franco, Carlos S. – 1/2-1/2 – Agrest, Evgenij – G253 1. c4 e5 2. g3 d6 3. Bg2 f5 4. d4 Be7 5. Nc3 c6 6. d5 Nf6 7. Nf3 O-O 8. O-O Kh8 9. b3 Na6 10. Bb2 Qe8
Smyslov Region Group Cup 2021 – Round 13.10 – Chigaev, Maksim – 1-0 – Najer, Evgeniy – G132 1. c4 e5 2. g3 d6 3. Bg2 f5 4. Nc3 Nf6 5. d3 Be7 6. e4 O-O 7. exf5 Bxf5 8. Nge2 c6 9. h3 Na6 10. g4 Bg6
World Blitz 2017 – Round 9.6 – Ding, Liren – 1-0 – Sjugirov, Sanan – G491 1. c4 e5 2. g3 d6 3. Bg2 f5 4. d4 Be7 5. Nc3 Nf6 6. Nf3 e4 7. Ng5 c6 8. d5 Nxd5 9. Ngxe4 Nb6 10. Nd2 Bf6
World Cup 1989 – Round 1 – Kasparov, Garry – 1-0 – Short, Nigel D – G5 1. c4 e5 2. g3 d6 3. Bg2 g6 4. d4 exd4 5. Qxd4 Nf6 6. Nc3 Bg7 7. Qe3+ Qe7 8. Qxe7+ Kxe7 9. b3 a5 10. Bb2 c6
World Rapid 2016 – Round 3.3 – Aronian, Levon – 1-0 – Amin, Bassem – G113 1. c4 e5 2. g3 d6 3. Bg2 g6 4. d4 Bg7 5. dxe5 dxe5 6. Qxd8+ Kxd8 7. Nc3 c6 8. b3 Bf5 9. Ba3 Nd7 10. O-O-O Nf6
World Rapid 2021 – Round 12.50 – Sadhwani, Raunak – 0-1 – Najer, Evgeniy – G721 1. c4 e5 2. g3 d6 3. Bg2 f5 4. Nc3 Nf6 5. e3 Be7 6. Nge2 O-O 7. O-O c6 8. d3 Kh8 9. e4 Qe8 10. f3 Be6

A20p — King’s (1953)

1.c4 e5 2.g3 d6 3.Bg2

Les coups candidats

3…f5 — 47.0% (1421 parties)

Ambassadeurs : Antoli Royo, Joaquin Miguel (8x), Gofshtein, Leonid (7x), Braun, Marek (5x), Yermolinsky, Alex (4x), Foisor, Cristina-Adela (4x), Seul, Georg (4x), Vega Gutierrez, Sabrina (4x), Haanpaa, Jorma (4x)

3…g6 — 21.5% (649 parties)

Ambassadeurs : Vincent, Trevor (6x), Mainka, Romuald (5x), Jussupow, Artur (5x), Hartoch, Robert G (5x), Serper, Grigory (4x), Ost-Hansen, Jacob (4x), Rotstein, Arkadij (4x), Bischoff, Klaus (3x)

3…Nc6 — 13.1% (397 parties)

Ambassadeurs : Short, Nigel D (8x), Shibut, Macon (3x), Arngrimsson, Dagur (3x), Agnew, Alan (3x), Andersen, Borge (2x), Mayer, Steven F. (2x), Oberst, Thomas (2x), Weyerstrass, Ronald (2x)

3…Nf6 — 6.8% (205 parties)

Ambassadeurs : Belikov, Vladimir (2x), Muhtarov, Leonid (2x), Andrews, Todd (2x), Wolff, Peter (2x), Hickman, Alex J (2x), Plat, Vojtech (2x), Sehner, Norbert (1x), Welz, Thomas (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	3…f5	3…g6	3…Nc6	3…Nf6
<1800	161	40%	19%	13%	17%
1800-2200	1384	50%	16%	14%	7%
2200-2600	1174	46%	28%	12%	4%
2600+	36	42%	33%	17%	—

Évolution par décennie (% des parties)

Décennie	N parties	3…f5	3…g6	3…Nc6	3…Nf6
1950s	6	83%	—	—	—
1960s	36	39%	36%	19%	—
1970s	37	32%	35%	8%	14%
1980s	90	29%	42%	13%	8%
1990s	454	38%	30%	16%	6%
2000s	807	44%	24%	15%	5%
2010s	1196	50%	17%	12%	9%
2020s	398	60%	14%	9%	4%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
3…f5	50%	60%	▲ +9.5%
3…g6	17%	14%	▼ -3.2%
3…Nc6	12%	9%	▼ -3.0%
3…Nf6	9%	4%	▼ -4.8%

Joueurs célèbres

Champions du monde dans cette position

Kasparov, Garry — 3 parties
Gukesh D — 2 parties
Tal, Mikhail — 1 partie
Kramnik, Vladimir — 1 partie
Ding, Liren — 1 partie

Parties historiques

3…f5 — 47.0% (1421 parties)

1953 — Udovcic, Mijo vs Nikolac, Juraj — 0-1 — Zagreb CRO
1956 — Bak, Istvan vs Ban, Jeno — 0-1 — Budapest Szikra
1957 — Schlieder, Rolf vs Braun, Gottfried, Dr. — 1/2-1/2 — Zittau
1957 — Urseanu, Veniamin vs Krogius, Nikolai V — 1/2-1/2 — Ploiesti
1959 — Tomson, Alexander vs Phillips, James Rodney — 1/2-1/2 — Muenchenstein/Basel

3…g6 — 21.5% (649 parties)

1961 — Bennett, Patrick vs Kottnauer, Cenek — 0-1 — Aberystwyth
1961 — Haag, Ervin vs Giustolisi, Alberto — 1/2-1/2 — Reggio Emilia ITA
1961 — Filip, Miroslav vs Olafsson, Fridrik — 1/2-1/2 — Marianske Lazne
1961 — Hansen, Victor vs Nielsen, Axel — 1/2-1/2 — Nykobing Falster DEN
1962 — Gromek, Jozef vs Klaput, Edward — 1/2-1/2 — Poznan POL

3…Nc6 — 13.1% (397 parties)

1961 — Haag, Ervin vs Anay Barche — 0-1 — Budapest ch-HUN
1963 — Tsvetkov, Alexandar K vs Milev, Angel — 1/2-1/2 — Sofia BUL
1964 — Andersen, Borge vs Pedersen, Eigil — 0-1 — DEN-ch, Holstebro
1964 — Andersen, Borge vs Blom, Kaj — 1/2-1/2 — Holstebro DEN
1968 — Bak, Istvan vs Smyslov, Vasily — 0-1 — Polanica Zdroj POL

3…Nf6 — 6.8% (205 parties)

1970 — Skalkotas, Nikolaos vs Resende, Antonio Carlos — 1/2-1/2 — Siegen olm
1971 — Collins, Richard vs Muranyi, Istvan — 1-0 — Lancaster
1973 — Tanner, Heinrich vs Scheichel, Herbert — 1-0 — Teesside ENG
1977 — Lawrence, Maxwell vs Palmeri, Ralph P — 1-0 — ?
1979 — Pankhurst, John vs Brodie, Hugh — 0-1 — Quebec CAN

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