Archives des D27a - 6…a6 - QGA: Classical [+0.24]

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D27a — QGA: Classical

1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6 5.Bxc4 c5 6.O-O a6

Eval: [+0.24]

Les coups candidats

Ambassadeurs : fperrot (19x), ? (19x), Ilyin, Pavel Egorovich (18x), Portisch, Lajos (16x), Vladimirov, Yevgeniy (15x), Radulov, Ivan (15x), Kallai, Gabor (15x), Korchut, Adam (14x)

7.dxc5 — 20.8% (4214 parties) →

Ambassadeurs : Stevic, Hrvoje (41x), Rublevsky, Sergei (28x), Ilyin, Pavel Egorovich (22x), Karpatchev, Aleksandr (18x), Vorobiov, Evgeny E. (17x), Kolanek, Roman (16x), Kozul, Zdenko (16x), Nikolic, Predrag (15x)

7.Bb3 — 19.7% (3982 parties) →

Ambassadeurs : Stevic, Hrvoje (23x), Anand, Viswanathan (22x), Chukanov, Igor Anatolievich (20x), Volodarsky, Yury Aleksandrovich (20x), Tkachiev, Vladislav (17x), Ganguly, Surya Shekhar (17x), Korchut, Adam (17x), Cvitan, Ognjen (16x)

7.Qe2 — 16.2% (3271 parties) →

Ambassadeurs : Euwe, Max (17x), Garcia Palermo, Carlos Horacio (17x), Reshevsky, Samuel (16x), Gruenfeld, Ernst (15x), Golz, Werner (14x), Najdorf, Miguel (12x), Keres, Paul (11x), Suetin, Alexey S (11x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	7.a4	7.dxc5	7.Bb3	7.Qe2
<1800	253	28%	19%	12%	15%
1800-2200	4363	26%	21%	20%	13%
2200-2600	11800	18%	22%	22%	14%
2600+	985	8%	28%	22%	7%

Évolution par décennie (% des parties)

Décennie	N parties	7.a4	7.dxc5	7.Bb3	7.Qe2
1890s	1	—	—	—	100%
1900s	5	20%	—	—	—
1910s	6	—	17%	—	50%
1920s	15	—	7%	—	67%
1930s	82	10%	6%	—	72%
1940s	145	10%	6%	—	72%
1950s	217	11%	9%	0%	71%
1960s	417	29%	14%	2%	45%
1970s	268	51%	9%	2%	30%
1980s	926	38%	9%	2%	35%
1990s	3337	24%	11%	12%	25%
2000s	6180	23%	21%	28%	13%
2010s	6173	17%	28%	26%	9%
2020s	2479	10%	26%	9%	7%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
7.a4	17%	10%	▼ -6.6%
7.dxc5	28%	26%	▼ -2.2%
7.Bb3	26%	9%	▼ -17.4%
7.Qe2	9%	7%	▼ -1.8%

Joueurs célèbres

Champions du monde dans cette position

Euwe, Max — 10 parties
Alekhine, Alexander — 10 parties
Tal, Mikhail — 10 parties
Smyslov, Vladimir — 10 parties
Anand, Viswanathan — 10 parties
Karpov, Anatoly — 10 parties
Kramnik, Vladimir — 10 parties
Kasparov, Garry — 10 parties
Botvinnik, Mikhail — 9 parties
Gukesh D — 8 parties
Carlsen, Magnus — 7 parties
Karpov, Aleksandr — 5 parties
Ju, Wenjun — 4 parties
Ding, Liren — 3 parties
Lasker, Emanuel — 1 partie
Hou, Yifan — 1 partie

Parties historiques

7.a4 — 20.9% (4226 parties)

1909 — Rubinstein, Akiba vs Freiman, Sergey Nikolaevich — 1-0 — St Petersburg RUS
1930 — Botvinnik, Mikhail vs Vilner, Yakov S — 1/2-1/2 — Leningrad RUS
1930 — Botvinnik, Mikhail vs Vilner, Yakov S — 1/2-1/2 — Leningrad ch-city
1933 — Rosselli del Turco, Stefano vs Gruenfeld, Ernst — 1-0 — Folkestone ENG
1933 — Heinicke, Herbert vs Sikorski, Norbert — 1-0 — Altona-Bahrenfeld

7.dxc5 — 20.8% (4214 parties)

1911 — Levenfish, Grigory vs Teichmann, Richard — 1/2-1/2 — Carlsbad CZE
1923 — Sery, S. vs Master Walter Aira — 1/2-1/2 — Pardubice CZE
1933 — Hoenlinger, Baldur vs Gruenfeld, Ernst — 1/2-1/2 — Vienna AUT
1933 — Pirc, Vasja vs Gruenfeld, Ernst — 1/2-1/2 — Moravska Ostrava
1935 — Gruenfeld, Ernst vs Flohr, Salo — 1/2-1/2 — Warsaw POL

7.Bb3 — 19.7% (3982 parties)

1951 — German, Eugenio vs Acebal Muniz, Antonio — 1-0 — San Rafael
1962 — Sliwa, Bogdan vs Filip, Marius Liviu — 1/2-1/2 — Varna BUL
1962 — Filip, Marius Liviu vs Conrady, Alphonse — 1-0 — Olympiad Varna BUL
1962 — Euwe, Max vs Filip, Marius Liviu — 1/2-1/2 — Varna BUL
1963 — Botvinnik, Mikhail vs Petrosian, Tigran V. — 1/2-1/2 — Moskou wch-m

7.Qe2 — 16.2% (3271 parties)

1899 — Klatt, Otto vs Kniebel G — 1-0 — cr.
1910 — Alekhine, Alexander vs GoncharovRubinstei — 1-0 — Moskou consult
1911 — Kostic, Boris vs Důras, Oldřich — 1/2-1/2 — Carlsbad CZE
1911 — Gregory, Bernhard vs Loewy, Leopold Jr — 1-0 — Berlin GER
1925 — Gruenfeld, Ernst vs Opocensky, Karel — 1/2-1/2 — Marienbad CZE

Partie
10. Sinquefield Cup 2023 – Round 4.1 – Giri, Anish – 1/2-1/2 – Vachier-Lagrave, Maxime – G13 1. Nf3 d5 2. d4 Nf6 3. c4 dxc4 4. e3 e6 5. Bxc4 a6 6. O-O c5 7. Re1 Be7 8. dxc5 Bxc5 9. Qxd8+ Kxd8 10. Nc3 Ke7
1905 Ostende – Round 11 – Teichmann, Richard – 1/2-1/2 – Blackburne, Joseph – G35 1. d4 d5 2. c4 dxc4 3. Nf3 c5 4. e3 Nf6 5. Bxc4 e6 6. O-O a6 7. Be2 Nc6 8. Nc3 cxd4 9. exd4 Be7 10. Bg5 h6
1908 Vienna – Round 8 – Johner, Paul – 1-0 – Berger, Jacob – G78 1. d4 d5 2. c4 e6 3. Nf3 c5 4. e3 Nf6 5. Bd3 a6 6. O-O dxc4 7. Bxc4 b5 8. Bd3 Bb7 9. a4 b4 10. Nbd2 Nbd7
1941 Mar del Plata – Round 1 – Najdorf, Miguel – 1/2-1/2 – Stahlberg, Gideon – G5 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. e3 c5 5. Bd3 dxc4 6. Bxc4 a6 7. O-O Nc6 8. Nc3 Be7 9. a3 b5 10. Ba2 Bb7
1945 Novi Sad – Round 21 – Fajer Abdallah Mohamad – 0-1 – Tomovic, Vasilje – G192 1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. Bd3 c5 5. c4 dxc4 6. Bxc4 a6 7. O-O Nc6 8. Be2 Qc7 9. a3 cxd4 10. exd4 b5
1947 Hanau – Round ? – Nuernberg, Friedrich – 0-1 – Zemgalis, Elmars – G16 1. d4 d5 2. Nf3 Nf6 3. c4 dxc4 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. Qc2 Nbd7 8. Rd1 b5 9. dxc5 Bxc5 10. Bd3 Bb7
1966 Budapest HUN – Round 5 – Kurtesch Laszlo – 0-1 – Dely, Peter – G13 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. e3 d5 5. Bd3 dxc4 6. Bxc4 a6 7. O-O b5 8. Be2 Bb7 9. Nbd2 Nbd7 10. Re1 Qb8
1966 La Habana olm fin-C – Round 11 – Colon Romero, Miguel – 1/2-1/2 – Myagmarsuren, Lkhamsuren – G70 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. h4 Nc6 8. Nc3 Be7 9. b3 O-O 10. Bb2 cxd4
2024 Superbet Chess Classic - Round 4 - Praggnanandhaa R - 1-0 - Giri Anish - G20 1. d4 1... d5 2. c4 2... dxc4 3. Nf3 3... Nf6 4. e3 4... e6 5. Bxc4 5... c5 6. O-O 6... a6 7. Be2 7... Nbd7 8. Nbd2 8... Be7 9. dxc5 9... Bxc5 10. Qc2 10... O-O
2024 Superbet Chess Classic - Round 7 - So Wesley - 1/2-1/2 - Abdusattorov Nodirbek - G33 1. d4 1... d5 2. c4 2... dxc4 3. e3 3... Nf6 4. Bxc4 4... e6 5. Nf3 5... a6 6. O-O 6... c5 7. Be2 7... Nbd7 8. Nc3 8... b5 9. d5 9... exd5 10. Nxd5 10... Bb7
2026 Tata Steel Chess Masters - Round 1.4 - Keymer, Vincent - 1-0 - Giri, Anish - G4 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. Re1 Nc6 8. Nc3 Be7 9. dxc5 Qxd1 10. Rxd1 Bxc5
5. Sinquefield Cup 2017 – Round 2.2 – Aronian, Levon – 0-1 – Caruana, Fabiano – G7 1. d4 d5 2. Nf3 Nf6 3. c4 dxc4 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. Be2 cxd4 8. exd4 Nc6 9. Nc3 Be7 10. Be3 Ng4
8. Sinquefield Cup 2021 – Round 5.3 – Mamedyarov, Shakhriyar – 1/2-1/2 – Dominguez Perez, Leinier – G23 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 a6 6. O-O c5 7. Re1 Nc6 8. Bd3 cxd4 9. exd4 Be7 10. Nc3 O-O
9. London Classic 2017 – Round 1.1 – Carlsen, Magnus – 1/2-1/2 – Caruana, Fabiano – G1 1. d4 d5 2. c4 dxc4 3. e3 Nf6 4. Bxc4 e6 5. Nf3 c5 6. O-O a6 7. Be2 Nbd7 8. Nc3 b6 9. e4 cxd4 10. Nxd4 Bb7
American Cup Blitz 2022 – Round 5.6 – Oparin, Grigoriy – 1/2-1/2 – Xiong, Jeffery – G29 1. d4 d5 2. c4 e6 3. Nf3 dxc4 4. e3 a6 5. Bxc4 Nf6 6. O-O c5 7. Re1 Nc6 8. Nc3 h6 9. d5 exd5 10. Nxd5 Ne4
FIDE Grand Swiss 2025 – Round 5 – Daneshvar Bardiya – 0-1 – Bacrot Etienne – G277 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 a6 6. O-O c5 7. Re1 b5 8. Bf1 cxd4 9. Nxd4 Bb4 10. Bd2 Bd6
Lindores Abbey Tal Memorial 2021 – Round 2.55 – Predke, Alexandr – 1-0 – Badelka, Olga – G109 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 a6 6. O-O c5 7. Re1 Nc6 8. Nc3 b5 9. Bd3 Bb7 10. a4 b4
Saint Louis Rapid 2022 – Round 1.5 – Aronian, Levon – 1/2-1/2 – Vachier-Lagrave, Maxime – G5 1. Nf3 d5 2. d4 Nf6 3. c4 dxc4 4. e3 e6 5. Bxc4 a6 6. O-O c5 7. Nbd2 cxd4 8. Nxd4 Be7 9. Be2 O-O 10. b3 b5
Superbet Blitz 2022 – Round 17.5 – Caruana, Fabiano – 1-0 – So, Wesley – G85 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 a6 6. O-O c5 7. Be2 cxd4 8. Nxd4 Be7 9. Nd2 O-O 10. b3 b5
Superbet Classic 2023 – Round 9.3 – Firouzja, Alireza – 1/2-1/2 – Vachier-Lagrave, Maxime – G42 1. Nf3 d5 2. d4 Nf6 3. c4 dxc4 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. Re1 Be7 8. dxc5 Bxc5 9. Qxd8+ Kxd8 10. Bf1 Ke7
SuperUnited Blitz 2022 – Round 13.4 – Van Foreest, Jorden – 1/2-1/2 – So, Wesley – G64 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 a6 6. O-O c5 7. Re1 Nc6 8. Nc3 Be7 9. dxc5 Qxd1 10. Rxd1 Bxc5
SuperUnited Blitz 2023 – Round 7.4 – Lupulescu, Constantin – 1/2-1/2 – Anand, Viswanathan – G34 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. Be2 Nbd7 8. b3 b6 9. Bb2 Bb7 10. Nbd2 Be7
SuperUnited Rapid 2023 – Round 3.1 – Lupulescu, Constantin – 0-1 – Anand, Viswanathan – G11 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. Be2 cxd4 8. Nxd4 Be7 9. b3 O-O 10. Bb2 b5
World Blitz 2018 – Round 3.12 – Vitiugov, Nikita – 1/2-1/2 – Timofeev, Artyom – G144 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 a6 6. O-O c5 7. Be2 cxd4 8. Nxd4 Bd6 9. b3 O-O 10. Bb2 e5
World Blitz 2021 – Round 5.48 – Gukesh D – 0-1 – Timofeev, Artyom – G296 1. d4 d5 2. c4 dxc4 3. e3 Nf6 4. Bxc4 e6 5. Nf3 c5 6. O-O a6 7. Re1 Nc6 8. Nc3 Be7 9. dxc5 Qxd1 10. Rxd1 Bxc5
World Blitz 2022 – Round 11.37 – Shankland, Sam – 1-0 – Tsaruk, Maksim – G585 1. d4 d5 2. c4 dxc4 3. e3 Nf6 4. Bxc4 e6 5. Nf3 a6 6. O-O c5 7. Nbd2 Nc6 8. dxc5 Bxc5 9. a3 O-O 10. b4 Be7
World Blitz 2023 – Round 19.39 – Matlakov, Maxim – 1-0 – Dardha, Daniel – G1093 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 a6 5. Bxc4 e6 6. O-O c5 7. Re1 b5 8. Bf1 Bb7 9. a4 b4 10. Nbd2 cxd4
World Rapid 2019 – Round 14.15 – Cheparinov, Ivan – 1/2-1/2 – Le, Quang Liem – G885 1. d4 d5 2. Nf3 Nf6 3. c4 dxc4 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. Re1 Nc6 8. Nc3 b5 9. Bd3 Bb7 10. a4 c4
World Rapid 2021 – Round 1.14 – Maghsoodloo, Parham – 1/2-1/2 – Aronian, Levon – G6 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 a6 6. O-O c5 7. Be2 Nbd7 8. b3 b6 9. Bb2 Bb7 10. Nbd2 Be7
World Rapid 2021 – Round 3.38 – Riazantsev, Alexander – 1/2-1/2 – Pichot, Alan – G164 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 a6 6. O-O c5 7. Be2 b5 8. a4 b4 9. b3 Bb7 10. Bb2 Nbd7
World Rapid 2021 – Round 5.10 – Cheparinov, Ivan – 1-0 – Aronian, Levon – G260 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 a6 6. O-O c5 7. Re1 Nc6 8. Nc3 b5 9. Bd3 cxd4 10. exd4 Nb4
World Rapid 2021 – Round 5.55 – Gukesh D – 1-0 – Pichot, Alan – G302 1. d4 d5 2. c4 dxc4 3. e3 Nf6 4. Bxc4 e6 5. Nf3 a6 6. O-O c5 7. Re1 b5 8. Bf1 Bb7 9. a4 b4 10. Nbd2 Be7