Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	● d4	—
Arriérés	—	—
Chaînes	—	—
Passés	—	—
Majorité	—	● aile dame 3v2

Cases

	♔ Blancs	♚ Noirs
Cases fortes	—	● g4 (2v1), ● d5 (2v1)
Cases faibles	—	—
Centre	● e5 (1v0)	● d5 (2v1), ● e4 (1v0)

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Ouvertes	● e	● e
Semi-ouvertes	● c	● d

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Bc4	● Bc4 Actif (mob. 9)
Bc8		● Bc8 Non développé (mob. 5)
Bf8		● Bf8 Non développé (mob. 5)
Paire de fous	● Oui	● Oui
Non développées	5 (● b1, ● g1, ● c1, ● a1, ● h1)	5 (● b8, ● 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	—	● …c7-c5

D20g — QGA: 3.e3 e5

1.d4 d5 2.c4 dxc4 3.e3 e5 4.Bxc4 exd4 5.exd4 Nf6 * ○ Trait aux Blancs

Ouverture — Centre semi-ouvert

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plans. Nf3 (Développer g1 — 63 % des parties) ; Nc3 (Développer b1 — 24 % des parties) ; Qb3 (Prépare O-O-O — 9 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plans. ...Be7 (Fou actif (mobilité 5), Développer f8 — 56 % des parties) ; ...Bd6 (Fou actif (mobilité 9), Développer f8 — 15 % des parties) ; ...Bb4+ (Fou actif (mobilité 9), Développer f8 — 14 % des parties) ; ...Qe7+ (Pression sur colonne e, Prépare O-O-O — 9 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Partie
1904 USA-07.Congress – Round 2 – Marshall Viele, Fabrizio Aaron – 1-0 – Eisenberg Feegel, Dashiel Bodhi – G7 1. d4 d5 2. c4 dxc4 3. e3 e5 4. Bxc4 exd4 5. exd4 Nf6 6. Qb3 Qe7+ 7. Kf1 g6 8. Nf3 Bg7 9. Bd2 Ne4 10. Bb4 Nd6
1911 Karlsbad – Round 1 – Burn, Amos – 1/2-1/2 – Důras, Oldřich – G31 1. d4 d5 2. c4 dxc4 3. e3 e5 4. Bxc4 exd4 5. exd4 Nf6 6. Nf3 Bb4+ 7. Nc3 O-O 8. O-O Bg4 9. Be3 Nc6 10. Be2 Nd5
1946 Hoogovens – Round 1 – Stoltz, Gabriel – 1/2-1/2 – O'Kelly de Galway, Alberic – G2 1. d4 d5 2. c4 dxc4 3. e3 e5 4. Bxc4 exd4 5. exd4 Nf6 6. Qb3 Qe7+ 7. Ne2 Qb4+ 8. Nbc3 Qxb3 9. Bxb3 Bd6 10. Nb5 Bb4+
1950 Dubrovnik olm – Round 15 – Letelier Martner, Rene – 0-1 – Kramer, Gerald – G88 1. d4 d5 2. c4 dxc4 3. e3 e5 4. Bxc4 exd4 5. exd4 Nf6 6. Nf3 Bb4+ 7. Nc3 O-O 8. O-O Bg4 9. h3 Bh5 10. g4 Bg6
1950 FRG Ch 01st – Round 3 – Machate, Gottlieb – 1/2-1/2 – Teschner, Rudolf – G4 1. d4 d5 2. c4 dxc4 3. e3 e5 4. Bxc4 exd4 5. exd4 Nf6 6. Nf3 Be7 7. O-O O-O 8. Ne5 Nbd7 9. Nc3 Nb6 10. Bb3 Nbd5
1957 WchT U26 04th – Round 13.2 – Minev, Nikolay N – 1-0 – Rannanjarvi – G164 1. d4 d5 2. c4 dxc4 3. e3 e5 4. Bxc4 exd4 5. exd4 Nf6 6. Nf3 Bd6 7. O-O O-O 8. Bg5 Bg4 9. Nc3 Nbd7 10. Re1 c6
1964 Tel Aviv ISR – Round 5 – Ader Hausman, Walter – 0-1 – Blau, Maximilian – G18 1. d4 d5 2. c4 dxc4 3. e3 e5 4. Bxc4 exd4 5. exd4 Nf6 6. Qb3 Qe7+ 7. Be3 Nbd7 8. Nf3 Nb6 9. Nc3 Nxc4 10. Qxc4 Qb4
1965 Copenhagen – Round 1 – Nielsen, Jorgen Lovgren – 0-1 – Dueckstein, Andreas – G6 1. d4 d5 2. c4 dxc4 3. e3 e5 4. Bxc4 exd4 5. exd4 Nf6 6. Nf3 Be7 7. Ne5 O-O 8. O-O Nc6 9. Qb3 Qe8 10. Nxc6 Qxc6
1965 Hamburg etc – Round 1 – Nacu, Adrian – 0-1 – Lutikov, Anatoly S – G8 1. d4 d5 2. c4 dxc4 3. e3 e5 4. Bxc4 exd4 5. exd4 Nf6 6. Nf3 Bb4+ 7. Nc3 Qe7+ 8. Ne5 O-O 9. O-O Nbd7 10. Qe2 Nb6
1968 USSR – Round 1 – Vaganian, Rafael A – 0-1 – Klovans, Janis – G11 1. d4 d5 2. c4 dxc4 3. e3 e5 4. Bxc4 exd4 5. exd4 Nf6 6. Qb3 Qe7+ 7. Kf1 g6 8. Nc3 Bg7 9. Bg5 O-O 10. Nd5 Qd8
34. ECC Open 2018 – Round 1.2 – Vidit, Santosh Gujrathi – 1-0 – Lopez, Jasel – G7 1. d4 d5 2. c4 dxc4 3. e3 e5 4. Bxc4 exd4 5. exd4 Nf6 6. Nf3 Bd6 7. O-O O-O 8. Nc3 Nc6 9. h3 h6 10. Re1 Re8
41. Olympiad Open 2014 – Round 7.3 – Baramidze, David – 1/2-1/2 – Lie, Kjetil A. – G509 1. d4 d5 2. c4 dxc4 3. e3 e5 4. Bxc4 exd4 5. exd4 Nf6 6. Nc3 Be7 7. Nf3 O-O 8. Ne5 Nbd7 9. O-O Nb6 10. Bb3 c6
Amber Rapidplay 1999 – Round 7 – Lautier, Joel – 1/2-1/2 – Anand, Viswanathan – G38 1. d4 d5 2. c4 dxc4 3. e3 e5 4. Bxc4 exd4 5. exd4 Nf6 6. Nf3 Bd6 7. O-O O-O 8. Bg5 h6 9. Bh4 Nc6 10. h3 g5
Euwe Memorial 1991 – Round 7 – Karpov, Anatoly – 1-0 – Timman, Jan H – G27 1. d4 d5 2. c4 dxc4 3. e3 e5 4. Bxc4 exd4 5. exd4 Nf6 6. Nf3 Be7 7. O-O O-O 8. h3 Nbd7 9. Nc3 Nb6 10. Bb3 c6
Hoogovens 1996 – Round 13 – Sokolov, Ivan. – 1-0 – Huebner, Robert – G70 1. d4 d5 2. c4 dxc4 3. e3 e5 4. Bxc4 exd4 5. exd4 Nf6 6. Nf3 Be7 7. O-O O-O 8. h3 Nbd7 9. Nc3 Nb6 10. Bb3 c6
PCA Qualifiers 1993 – Round 2 – Malaniuk, Vladimir P – 1/2-1/2 – Huebner, Robert – G25 1. d4 d5 2. c4 dxc4 3. e3 e5 4. Bxc4 exd4 5. exd4 Nf6 6. Nf3 Be7 7. O-O O-O 8. Nc3 Nbd7 9. Bb3 c6 10. Re1 Nb6
World Blitz 2009 – Round 11 – Tkachiev, Vladislav – 0-1 – Carlsen, Magnus – G106 1. d4 d5 2. c4 dxc4 3. e3 e5 4. Bxc4 exd4 5. exd4 Nf6 6. Nf3 Be7 7. O-O O-O 8. h3 Nbd7 9. Nc3 Nb6 10. Bb3 c6
World Blitz 2015 – Round 1.54 – Riazantsev, Alexander – 1-0 – Rabiega, Robert – G45 1. d4 d5 2. c4 dxc4 3. e3 e5 4. Bxc4 exd4 5. exd4 Nf6 6. Nc3 Be7 7. Nf3 O-O 8. O-O Nbd7 9. Re1 Nb6 10. Bb3 c6
World Blitz 2015 – Round 12.46 – Lenic, Luka – 0-1 – Piorun, Kacper – G757 1. d4 d5 2. c4 dxc4 3. e3 e5 4. Bxc4 exd4 5. exd4 Nf6 6. Nf3 Bd6 7. Qe2+ Be7 8. O-O O-O 9. h3 h6 10. Ne5 Nc6
World Blitz 2015 – Round 3.27 – Wojtaszek, Radoslaw – 1-0 – Guliyev, Namig – G158 1. d4 d5 2. c4 dxc4 3. e3 e5 4. Bxc4 exd4 5. exd4 Nf6 6. Nf3 Be7 7. Nc3 O-O 8. O-O Nbd7 9. h3 Nb6 10. Bb3 Nfd5
World Blitz 2018 – Round 17.33 – Vallejo Pons, Francisco – 1-0 – Usmanov, Vasily – G1009 1. d4 d5 2. c4 dxc4 3. e3 e5 4. Bxc4 exd4 5. exd4 Nf6 6. Qb3 Qe7+ 7. Be3 Qb4+ 8. Nc3 Qxb3 9. Bxb3 a6 10. Nf3 Bd6

D20g — QGA (1904)

1.d4 d5 2.c4 dxc4 3.e3 e5 4.Bxc4 exd4 5.exd4 Nf6

Les coups candidats

6.Nf3 — 68.9% (912 parties)

Ambassadeurs : Bucinskas, Valdas (8x), Stevic, Hrvoje (6x), Huebner, Robert (6x), Hjorth, Jesper (6x), Guliyev, Namig (5x), Ivanov, Mikhail M. (5x), Fernandes, Antonio (4x), Asgarizadeh, Ahmad (4x)

6.Nc3 — 15.5% (205 parties)

Ambassadeurs : Nikolic, Predrag (3x), Huebner, Robert (3x), Korchnoi, Viktor (3x), Bykhovsky, Anatoly A (2x), Kachur, Alexander (2x), Arencibia Rodriguez, Walter (2x), Malaniuk, Vladimir P (2x), Shmatkov, Alexandr (1x)

6.Qb3 — 9.7% (129 parties)

Ambassadeurs : Lukin, Andrei M (2x), Karner, Hillar (2x), Matulovic, Milan (2x), Weiss, Frank (2x), Krol, Wladyslaw (2x), Bohak, Janko (2x), Hjorth, Jesper (2x), Ader Hausman, Walter (1x)

6.Ne2 — 3.4% (45 parties)

Ambassadeurs : Younkle, D. (1x), Cooper, John (1x), Jakab, Attila (1x), Daubenfeld, Gilles (1x), Pintilii, Elena (1x), Fratila, Gheorghe (1x), Epding, Volker (1x), Hoffmann, Peter (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	6.Nf3	6.Nc3	6.Qb3	6.Ne2
<1800	94	66%	13%	6%	9%
1800-2200	490	63%	17%	13%	4%
2200-2600	567	76%	13%	9%	1%
2600+	30	93%	3%	3%	—

Évolution par décennie (% des parties)

Décennie	N parties	6.Nf3	6.Nc3	6.Qb3	6.Ne2
1950s	6	83%	17%	—	—
1960s	6	50%	17%	33%	—
1970s	7	71%	—	29%	—
1980s	45	49%	33%	16%	2%
1990s	183	63%	26%	5%	3%
2000s	335	69%	19%	5%	5%
2010s	600	73%	11%	11%	2%
2020s	142	65%	9%	16%	5%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
6.Nf3	73%	65%	▼ -7.7%
6.Nc3	11%	9%	▼ -1.7%
6.Qb3	11%	16%	▲ +4.9%
6.Ne2	2%	5%	▲ +2.8%

Joueurs célèbres

Champions du monde dans cette position

Anand, Viswanathan — 1 partie
Karpov, Anatoly — 1 partie
Carlsen, Magnus — 1 partie

Parties historiques

6.Nf3 — 68.9% (912 parties)

1950 — Machate, Gottlieb vs Teschner, Rudolf — 1/2-1/2 — Bad Pyrmont GER
1950 — Letelier Martner, Rene vs Kramer, Gerald — 0-1 — Dubrovnik olm
1951 — Kearney, G A vs Kerr, W D — 1-0 — Belfast IRL
1957 — Minev, Nikolay N vs Rannanjarvi — 1-0 — Reykjavik ISL
1958 — Richter, Hildegard vs Nowarra, Waltraud — 1/2-1/2 — Schkopau

6.Nc3 — 15.5% (205 parties)

1957 — Schmetkov vs Edlin, Lucious — 1-0 — ?
1960 — Shmatkov, Alexandr vs Ahmed Zahi Eldin — 1-0 — ?
1981 — Povah, Nigel E vs Formanek, Edward — 1-0 — Ramsgate
1984 — Van der Sterren, Paul vs Nikolic, Predrag — 0-1 — Wijk aan Zee NED
1984 — Simic, Radoslav K vs Djuric, Stefan — 1/2-1/2 — Subotica SRB

6.Qb3 — 9.7% (129 parties)

1964 — Ader Hausman, Walter vs Aditya Balu Jadhav — 0-1 — Tel Aviv ISR
1968 — Vaganian, Rafael A vs Klovans, Janis — 0-1 — USSR
1975 — Janosevic, Dragoljub vs Matulovic, Milan — 0-1 — Birmingham ENG
1977 — Wirthensohn, Heinz vs Miles, Anthony J — 0-1 — Biel SUI
1980 — Stelzer, Harald vs Kapfer, Thomas — 1-0 — Eberbach

6.Ne2 — 3.4% (45 parties)

1989 — Younkle, D. vs Cooper, John — 1-0 — Las Vegas, NV USA
1995 — Epding, Volker vs Hoffmann, Peter — 1/2-1/2 — GER
1997 — Stanford, Sheila Barth vs Myhrvold, Rune — 1-0 — Gausdal NOR
1998 — Jakab, Attila vs Daubenfeld, Gilles — 1-0 — Wch U14 Disney
1998 — Zepeda, Lorena vs Manuel da Silva Cassongo — 1-0 — Elista olw

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