Structure de pions
♔ Blancs ♚ Noirs
Pions doublés
Pions isolés
Arriérés
Chaînes ● f2→g3, h2→g3
Passés
Majorité
Cases
♔ Blancs ♚ Noirs
Cases fortes ● d5 (2v0) ● b4 (2v0), ● d4 (2v0)
Cases faibles
Centre ● d5 (2v0), ● e4 (1v0) ● d4 (2v0), ● e5 (1v0)
Colonnes et diagonales
♔ Blancs ♚ Noirs
Pièces
♔ Blancs ♚ Noirs
Bc1 ● Bc1 Non développé (mob. 0)
Bg2 ● Bg2 Actif (mob. 6)
Bc8 ● Bc8 Non développé (mob. 0)
Bf8 ● Bf8 Non développé (mob. 5)
Paire de fous ● Oui ● Oui
Non développées 5 (● b1, ● g1, ● c1, ● a1, ● h1) 5 (● 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

A20q — English: King’s, 2.g3 Nc6 3.Bg2

1.c4 e5 2.g3 Nc6 3.Bg2 *   ● Trait aux Noirs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1
bR
bB
bQ
bK
bB
bN
bR
bP
bP
bP
bP
bP
bP
bP
bN
Case forte (2v0)
bP
wP
wP
wP
wP
wP
wP
wP
wBFou actif — mobilité 6
wP
wR
wN
wB
wQ
wK
wN
wR
abcdefgh
Plans. Nc3 (Développer b1 — 85 % des parties) ; e3 (Solidifier le centre — 6 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8
wR
wN
wK
wQ
wB
wN
wR
wP
wB
wP
wP
wP
wP
wP
wP
Case forte (2v0)
wP
Case forte (2v0)
bP
bN
bP
bP
bP
bP
bP
bP
bP
bR
bN
bBFou actif — mobilité 5
bK
bQ
bB
bR
hgfedcba
Plans. ...g6 (Préparer le fianchetto — 40 % des parties) ; ...f5 (Attaque à l'aile roi — 20 % des parties) ; ...Nf6 (Développer g8 — 16 % des parties) ; ...Bc5 (Fou actif (mobilité 9), Développer f8 — 14 % des parties) ; ...d6 (Libérer Bc8 — 8 % des parties).
Avantages
Faiblesses
Diagonale active
Plans
Partie
1939 Bad Elster – Round 5 – Jaeger, Willy – 1/2-1/2 – Heinicke, Herbert – G14
1. c4 e5 2. g3 Nc6 3. Bg2 g6 4. e3 Bg7 5. Ne2 d6 6. d4 Nge7 7. Nbc3 O-O 8. O-O exd4 9. exd4 Nf5 10. d5 Ncd4
1944 Olomouc Olomouc CZE – Round 3 – Zita, Frantisek – 1-0 – Florian, Jaromir – G3
1. c4 e5 2. g3 Nc6 3. Bg2 f5 4. e4 fxe4 5. Nc3 Nf6 6. Nxe4 Nxe4 7. Bxe4 Qf6 8. Qf3 Bc5 9. Qxf6 gxf6 10. Ne2 d6
1958 AUS Ch – Round 2.12 – Tymoshenko, Peter – 1-0 – Purdy, Cecil J S – G7
1. c4 e5 2. g3 Nc6 3. Bg2 f5 4. d3 Nf6 5. Nf3 d5 6. cxd5 Nxd5 7. O-O Be7 8. Nc3 Nxc3 9. bxc3 Be6 10. Bb2 O-O
1959 FRG Ch Nuerenberg GER – Round 2 – Jaeger, Walter – 1-0 – Bialas, Wolfram – G4
1. c4 e5 2. g3 Nc6 3. Bg2 Bc5 4. Nc3 d6 5. e3 Nge7 6. Nge2 O-O 7. d4 exd4 8. exd4 Bb6 9. O-O Bg4 10. h3 Bxe2
1959 FRG Ch Nuerenberg GER – Round 4 – Jaeger, Walter – 1/2-1/2 – Troeger, Paul – G10
1. c4 e5 2. g3 Nc6 3. Bg2 d5 4. Nc3 Be6 5. d3 Nge7 6. Nf3 f6 7. O-O Qd7 8. Re1 g6 9. a3 Bg7 10. b4 O-O
1960 Leipzig olm prel – Round 3 – Angles d'Auriac, Bernard – 0-1 – Beni, Alfred – G109
1. g3 e5 2. c4 Nc6 3. Bg2 f5 4. d3 Nf6 5. Nf3 Be7 6. Nc3 d6 7. O-O O-O 8. e3 Qe8 9. Rb1 Nh5 10. Nd5 Bd8
1961 New York ch-USA – Round 2 – Benko, Pal – 0-1 – Bernstein, Sidney – G8
1. g3 e5 2. c4 Nc6 3. Bg2 Be7 4. Nc3 d6 5. e3 Be6 6. Nd5 Qd7 7. d4 exd4 8. exd4 Bf5 9. Ne2 Nf6 10. Nxe7 Qxe7
1963 CSR Ch – Round 16 – Ujtelky, Maximilian – 0-1 – Novak, Zbynek – G150
1. g3 e5 2. c4 Nc6 3. Bg2 g6 4. b3 Bg7 5. Bb2 Nge7 6. Nc3 d6 7. a3 Be6 8. Nd5 Qd7 9. e3 Rb8 10. Ne2 b5
1963 Kiev Avantgard Ch – Round ? – Kostiuchenko, Alexander – 1-0 – Kurass, Iskir – G1
1. c4 e5 2. g3 Nc6 3. Bg2 Bc5 4. e3 a6 5. Ne2 Nge7 6. Nbc3 d6 7. O-O O-O 8. d4 Ba7 9. b3 exd4 10. exd4 Bf5
1964 URS Ch sf Kishinev MDA – Round ? – Roizman, Abram Y – 1/2-1/2 – Kudriashov, Anatoli – G1
1. c4 e5 2. g3 Nc6 3. Bg2 g6 4. e4 d6 5. Ne2 Be6 6. d3 Qd7 7. Nbc3 Bg7 8. Nd5 Nce7 9. O-O c6 10. Ne3 h5
1965 New York ch-USA – Round 10 – Reshevsky, Samuel – 1/2-1/2 – Burger, Kim – G24
1. g3 e5 2. c4 Nc6 3. Bg2 g6 4. e3 Bg7 5. Ne2 d6 6. Nbc3 Nge7 7. O-O O-O 8. Rb1 Be6 9. Nd5 Qd7 10. Qa4 Nxd5
1966 Zinnowitz Zinnowitz GER – Round 9 – Gromek, Jozef – 1/2-1/2 – Liebert, Heinz – G28
1. c4 e5 2. g3 Nc6 3. Bg2 g6 4. e3 Bg7 5. Ne2 d6 6. Nbc3 f5 7. b3 Nf6 8. Bb2 O-O 9. Nd5 Nxd5 10. Bxd5+ Kh8
1968 Reykjavik – Round 1 – Olafsson, Fridrik – 1/2-1/2 – Taimanov, Mark – G3
1. c4 e5 2. g3 Nc6 3. Bg2 g6 4. b3 Bg7 5. Bb2 Nge7 6. Nc3 O-O 7. d3 d6 8. Qd2 Be6 9. Nd5 Qd7 10. f4 a5
1969 Uppsala Open – Round ? – Zwaig, Arne – 1-0 – Dahl Schutt, Frederik – G10
1. g3 e5 2. Bg2 Nc6 3. c4 Be7 4. Nc3 Nf6 5. d3 d6 6. Rb1 O-O 7. b4 a6 8. Bd2 Rb8 9. e3 Be6 10. b5 axb5
34. ECC Open 2018 – Round 1.6 – Vallejo Pons, Francisco – 1-0 – Rosenkilde, Alexander – G29
1. c4 e5 2. g3 Nc6 3. Bg2 Bc5 4. Nc3 a6 5. e3 Ba7 6. Nf3 Nf6 7. d4 exd4 8. Nxd4 Ne5 9. b3 O-O 10. O-O d6
40. Olympiad Open 2012 – Round 9.15 – Miezis, Normunds – 1/2-1/2 – Bruzon Batista, Lazaro – G494
1. c4 e5 2. g3 Nc6 3. Bg2 Bc5 4. Nc3 a6 5. e3 d6 6. Nge2 Ba7 7. a3 Nge7 8. d3 Bf5 9. h3 Qd7 10. b4 O-O
41. Olympiad Open 2014 – Round 6.26 – Mwali, Chitumbo – 0-1 – Anton Guijarro, David – G433
1. c4 e5 2. g3 Nc6 3. Bg2 Bc5 4. Nc3 d6 5. a3 a6 6. e3 Ba7 7. Nge2 h5 8. h4 Bg4 9. b3 Nge7 10. Bb2 Rb8
42. Olympiad 2016 – Round 8.21 – Iturrizaga Bonelli, Eduardo – 1/2-1/2 – Ferreira, Jorge Viterbo – G569
1. c4 e5 2. g3 Nc6 3. Bg2 Bc5 4. Nc3 a6 5. e3 d6 6. Nge2 Ba7 7. b3 Bf5 8. d3 Qd7 9. h3 h5 10. a3 Rb8
Amber-rapid 16th 2007 – Round 7 – Ivanchuk, Vasyl – 1-0 – Vallejo Pons, Francisco – G16
1. c4 e5 2. g3 Nc6 3. Bg2 Bc5 4. Nc3 d6 5. Nf3 Nf6 6. d3 h6 7. O-O O-O 8. b3 a6 9. Bb2 Ba7 10. e3 Rb8
Cote d'Ivoire Blitz 2019 – Round 1.4 – Ding, Liren – 0-1 – Nepomniachtchi, Ian – G4
1. c4 e5 2. g3 Nc6 3. Bg2 h5 4. h3 Bc5 5. Nc3 d6 6. e3 Be6 7. b3 Nge7 8. Nge2 d5 9. d4 exd4 10. exd4 Bb4
FIDE World Cup 2015 – Round 1.1 – Safarli, Elmir – 1/2-1/2 – Balogh Urbina, Carlos Alfonso – G2
1. c4 e5 2. g3 Nc6 3. Bg2 Bc5 4. Nc3 a6 5. e3 d6 6. Nge2 Ba7 7. d4 Nge7 8. O-O exd4 9. Nxd4 Nxd4 10. exd4 O-O
FIDE World Cup 2019 – Round 2.2 – Anton Guijarro, David – 0-1 – Wei, Yi – G227
1. c4 e5 2. g3 Nc6 3. Bg2 h5 4. h3 d6 5. Nc3 h4 6. g4 f5 7. gxf5 Bxf5 8. d3 Nf6 9. Nf3 Be7 10. d4 Qd7
FIDE World Rapid Championship 2025 – Round 1 – Peyrer Konstantin – 0-1 – Giri Anish – G18
1. c4 e5 2. g3 Nc6 3. Bg2 Bc5 4. Nc3 d6 5. e3 Bb6 6. Nge2 h5 7. d4 h4 8. b4 a5 9. b5 h3 10. Bf3 Nce7
GCT Blitz Paris 2017 – Round 1.2 – Topalov, Veselin – 1-0 – Grischuk, Alexander – G2
1. c4 e5 2. g3 Nc6 3. Bg2 Bc5 4. Nc3 d6 5. e3 a6 6. Nge2 Ba7 7. b3 Nge7 8. Bb2 h5 9. h4 Bg4 10. d3 Qd7
GCT Rapid YourNextMove 2017 – Round 6.3 – Ivanchuk, Vasyl – 1-0 – Nepomniachtchi, Ian – G28
1. c4 e5 2. g3 Nc6 3. Bg2 h5 4. d3 h4 5. g4 h3 6. Be4 Nf6 7. Bg5 Be7 8. Bxf6 Bb4+ 9. Kf1 Qxf6 10. Nf3 Nd4
Interpolis 1993 – Round 1 – Serper, Grigory – 1/2-1/2 – Razuvaev, Yuri S – G2
1. c4 e5 2. g3 Nc6 3. Bg2 f5 4. e3 Nf6 5. Ne2 Be7 6. Nbc3 O-O 7. Nd5 Kh8 8. O-O Nxd5 9. cxd5 Nb4 10. d3 c6
Lugano Open 1982 – Round 1 – Korchnoi, Viktor – 1-0 – Bohm, Hans – G1
1. c4 Nc6 2. g3 e5 3. Bg2 g6 4. b3 Bg7 5. Bb2 Nge7 6. Nc3 O-O 7. e3 a6 8. Nge2 Rb8 9. d4 exd4 10. exd4 d6
World Blitz 2015 – Round 12.51 – Bezold, Michael – 1/2-1/2 – Ivanisevic, Ivan – G760
1. g3 e5 2. c4 Nc6 3. Bg2 Bc5 4. e3 d6 5. Ne2 a6 6. Nbc3 Ba7 7. d4 Nge7 8. O-O h5 9. h4 Bg4 10. d5 Nb8
World Blitz 2015 – Round 2.19 – Leko, Peter – 1/2-1/2 – Ivanisevic, Ivan – G87
1. c4 e5 2. g3 Nc6 3. Bg2 Bc5 4. Nc3 d6 5. e3 a6 6. Nge2 Ba7 7. d4 exd4 8. exd4 Nge7 9. h3 O-O 10. O-O Nf5
World Blitz 2018 – Round 12.4 – Le, Quang Liem – 0-1 – Nepomniachtchi, Ian – G721
1. c4 e5 2. g3 Nc6 3. Bg2 h5 4. h3 Bc5 5. Nc3 d6 6. e3 Be6 7. b3 Nge7 8. Nge2 d5 9. d4 exd4 10. exd4 Bb4
World Blitz 2018 – Round 8.36 – Zvjaginsev, Vadim – 0-1 – Demidov, Mikhail – G482
1. c4 e5 2. g3 Nc6 3. Bg2 Bc5 4. e3 a6 5. Ne2 d6 6. Nbc3 Ba7 7. h3 Nf6 8. d4 O-O 9. O-O exd4 10. Nxd4 Nxd4
World Blitz 2021 – Round 21.27 – Van Foreest, Jorden – 1-0 – Anton Guijarro, David – G1219
1. g3 e5 2. c4 Nc6 3. Bg2 Bc5 4. Nc3 a6 5. Nf3 d6 6. e3 Nf6 7. O-O O-O 8. h3 Ba7 9. b3 Re8 10. d3 Ne7
World Blitz 2023 – Round 20.33 – Iturrizaga Bonelli, Eduardo – 1-0 – Christiansen, Johan-Sebastian – G1143
1. c4 e5 2. g3 Nc6 3. Bg2 Bc5 4. Nc3 d6 5. Nf3 a6 6. e3 Ba7 7. O-O Bg4 8. h3 Bh5 9. g4 Bg6 10. d4 Nge7
World Blitz 2023 – Round 8.40 – Iturrizaga Bonelli, Eduardo – 0-1 – Zhalmakhanov, Ramazan – G474
1. c4 e5 2. g3 Nc6 3. Bg2 Bc5 4. Nc3 a6 5. Nf3 Ba7 6. O-O d6 7. e3 Nf6 8. d4 O-O 9. h3 Re8 10. dxe5 dxe5

A20q — King’s (1939)
1.c4 e5 2.g3 Nc6 3.Bg2
Les coups candidats
3…g6 — 40.4% (4562 parties)
Ambassadeurs : Pribyl, Josef (20x), Karlsson, Lars 1937 (14x), Sehner, Norbert (13x), Vaulin, Alexander P. (13x), Serper, Grigory (13x), Sher, Miron (12x), Korchnoi, Viktor (11x), Koshy, Varugeese (11x)
3…f5 — 20.1% (2275 parties)
Ambassadeurs : Spraggett, Kevin (11x), Kurajica, Bojan (9x), Serper, Grigory (8x), Sher, Miron (8x), Vaulin, Alexander P. (8x), Eingorn, Vereslav S (6x), Lutton, E Josiah (6x), Kafka, Graeme (6x)
Ambassadeurs : Popov, Vladimir Valentinovich (9x), Foisor, Cristina-Adela (7x), Brissman, Anders (6x), Malewicz, Frank (6x), Polak, Tomas (6x), Korneev, Oleg (6x), Stark, Lars (5x), Spraggett, Kevin (4x)
3…Bc5 — 13.8% (1565 parties)
Ambassadeurs : Christiansen, Johan-Sebastian (9x), Larkin, Vladyslav (9x), Kantans, Toms (8x), Movsesian, Sergei (7x), Kovacevic, Blazimir (6x), Salgado Lopez, Ivan (5x), Savchenko, Stanislav (5x), Roselli Mailhe, Bernardo (5x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 3…g6 3…f5 3…Nf6 3…Bc5
<1800 721 26% 21% 25% 17%
1800-2200 4683 37% 24% 17% 12%
2200-2600 4803 47% 18% 11% 15%
2600+ 174 51% 14% 9% 18%
Évolution par décennie (% des parties)
Décennie N parties 3…g6 3…f5 3…Nf6 3…Bc5
1950s 13 54% 15% 8% 15%
1960s 92 63% 5% 5% 2%
1970s 111 66% 15% 5% 3%
1980s 404 64% 13% 7% 1%
1990s 1585 56% 17% 11% 3%
2000s 3065 45% 20% 15% 8%
2010s 4652 32% 22% 19% 19%
2020s 1381 30% 21% 14% 26%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
3…g6 32% 30% ▼ -1.6%
3…f5 22% 21% ▼ -0.9%
3…Nf6 19% 14% ▼ -4.8%
3…Bc5 19% 26% ▲ +7.2%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 6 parties
Kasparov, Garry — 5 parties
Gukesh D — 5 parties
Karpov, Anatoly — 4 parties
Anand, Viswanathan — 2 parties
Kramnik, Vladimir — 2 parties
Ding, Liren — 2 parties
Smyslov, Vladimir — 1 partie
Carlsen, Magnus — 1 partie
Parties historiques
3…g6 — 40.4% (4562 parties)
1954 — Carls, Carl vs Heinicke, Herbert — 1-0 — Bremen GER
1954 — Nuesken, Fritz vs Kahn, Manfred — 1/2-1/2 — Zittau
1957 — Furman, Slavomir vs Bannik, Anatolij — 1-0 — Leningrad RUS
1959 — Benko, Pal vs Keres, Paul Petrovich — 0-1 — Bled/Zagreb/Belgrade
1959 — Gromek, Jozef vs Blatny, Frantisek — 1-0 — Marianske Lazne
3…f5 — 20.1% (2275 parties)
1954 — Anay Barche vs Kluger, Gyula — 1-0 — Hungary ch
1958 — Tymoshenko, Peter vs Purdy, Cecil J S — 1-0 — Sydney AUS
1960 — Angles d'Auriac, Bernard vs Beni, Alfred — 0-1 — Leipzig GER
1965 — Fronczek, Heinrich vs Galewicz, Marek — 1-0 — Poznan POL
1968 — Andersen, Borge vs Franco, Sigifredo — 1-0 — Copenhagen ch-DEN
3…Nf6 — 15.6% (1758 parties)
1957 — Kaikamdzozov, Jivko vs Mechkarov, Stefan — 0-1 — Sofia BUL
1964 — Avner, Uri vs Adamski, Andrzej — 1/2-1/2 — Krakow POL
1965 — Lang, Erhard vs Theis, Wolfgang — 0-1 — Kiel GER
1965 — Partyka, Kazimierz vs De Graaff, Rag — 0-1 — Amsterdam NED
1966 — Soos, Bela vs Ree, Hans — 0-1 — Titovo Uzice
3…Bc5 — 13.8% (1565 parties)
1954 — Keck, K. vs Mechkarov, Ventzeslav — 1-0 — Halle GER
1959 — Jaeger, Walter vs Bialas, Wolfram — 1-0 — FRG-ch Nuerenberg GER
1962 — Alexander, Ken R D vs Rostovtsev, Yuri — 1/2-1/2 — ?
1963 — Alexander, Ken R D vs Kurass, Iskir — 1-0 — Kiev UKR
1970 — Hort, Vlastimil vs Salcher, Felix — 0-1 — ?

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