D28m — QGA: Classical, 7.Qe2 b5 8.Bb3 Nc6 9.Nc3 Bb7

1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6 5.Bxc4 c5 6.O-O a6 7.Qe2 b5 8.Bb3 Nc6 9.Nc3 Bb7 * ○ Trait aux Blancs

Ouverture — Centre semi-ouvert

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Avantages : majorité centre (2v1), case forte e5, Bb3 actif, paire de fous, colonne c.
Faiblesses adverses : Bb7 enfermé, Bf8 enfermé, roi noir au centre.
Problèmes : Bc1 enfermé.
Plans :
● Bd2 — Développer Bc1
● Bc2 — Anticiper ...Na5
● Rc — Tour sur colonne c

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Avantages : majorité aile_dame (3v2), case forte b4, case forte d5, avant-postes b4(C), d5(C), paire de fous, colonne d.
Faiblesses adverses : Bc1 enfermé.
Problèmes : roi au centre, Bb7 enfermé, Bf8 enfermé, 3 pièces non développées (F8, A8, H8).
Plans :
● O-O — Mettre le roi en sécurité, connecter les tours
● ...Be7 — Développer Bf8
● ...Na5 — Attaquer Bb3
● ...Bg4 — Clouer Nf3
● ...c4 — Rupture

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

D28m — Classical

1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6 5.Bxc4 c5 6.O-O a6 7.Qe2 b5 8.Bb3 Nc6 9.Nc3 Bb7

Eval: [+0.26]

Les coups candidats

10.Rd1 — 91.6% (207 parties)

Ambassadeurs : Gruenfeld, Ernst (4x), Kramer, George (2x), Book, Eero (2x), O'Kelly de Galway, Alberic (2x), Byrne, David (2x), Pinkus, Lutz (2x), Kramer, Gerald (2x), Curdo, John (2x)

10.dxc5 — 4.0% (9 parties)

Ambassadeurs : Cross, Jaden (1x), Joyner, Lionel (1x), Georgiev, Kiril (1x), Gyimesi, Zoltan (1x), Ponomarev, Aleksandr A (1x), Vayser, Vladimir Abramovich (1x), Leyrer, Thomas (1x), Schmidt, Tobias (1x)

10.d5 — 4.0% (9 parties)

Ambassadeurs : Kalinin, Aleksandr (1x), Winckelmann, Thomas (1x), Markert, Malte, Dr. (1x), Luch, Michal (1x), Mikhailov, Grigory Konstantino (1x), Mayorov, Boris Ivanovich (1x), Matlakov, Maxim (1x), Popov, Ivan (1x)

10.Re1 — 0.4% (1 parties)

Ambassadeurs : Ziegert, Andreas (1x), Zielinski, Sergej (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	10.Rd1	10.dxc5	10.d5	10.Re1
<1800	3	100%	—	—	—
1800-2200	41	95%	5%	—	—
2200-2600	104	90%	5%	5%	—
2600+	10	70%	—	30%	—

Évolution par décennie (% des parties)

Décennie	N parties	10.Rd1	10.dxc5	10.d5	10.Re1
1920s	1	100%	—	—	—
1930s	8	100%	—	—	—
1940s	15	100%	—	—	—
1950s	11	91%	9%	—	—
1960s	4	100%	—	—	—
1970s	9	100%	—	—	—
1980s	13	100%	—	—	—
1990s	22	95%	5%	—	—
2000s	46	93%	2%	2%	2%
2010s	65	88%	8%	5%	—
2020s	32	81%	3%	16%	—

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
10.Rd1	88%	81%	▼ -6.4%
10.dxc5	8%	3%	▼ -4.6%
10.d5	5%	16%	▲ +11.0%
10.Re1	0%	0%	+0.0%

Joueurs célèbres

Champions du monde dans cette position

Euwe, Max — 1 partie
Ju, Wenjun — 1 partie

Parties historiques

10.Rd1 — 91.6% (207 parties)

1923 — Treybal, Karel vs Odehnal, J. — 1-0 — sim Brno
1934 — Gruenfeld, Ernst vs Lenner Leopold — 1-0 — Vienna AUT
1934 — Gruenfeld, Ernst vs Gilg, Karl — 1-0 — Klosterneuburg
1934 — Hoenlinger, Baldur vs Rosenberger, Coelestin — 1-0 — Vienna AUT
1935 — Gruenfeld, Ernst vs Book, Eero — 1/2-1/2 — Warsaw POL

10.dxc5 — 4.0% (9 parties)

1952 — Cross, Jaden vs Joyner, Lionel — 1/2-1/2 — Hollywood
1998 — Georgiev, Kiril vs Gyimesi, Zoltan — 1/2-1/2 — Ulcinj
2007 — Ponomarev, Aleksandr A vs Vayser, Vladimir Abramovich — 1/2-1/2 — ICCF
2010 — Mccarty, Andy vs Richter, Klaus — 0-1 — LSS
2011 — Merli, Mariano vs Lo Presti, Roberto — 0-1 — Buenos Aires ARG

10.d5 — 4.0% (9 parties)

2006 — Kalinin, Aleksandr vs Winckelmann, Thomas — 1/2-1/2 — ICCF
2010 — Markert, Malte, Dr. vs Luch, Michal — 1/2-1/2 — Wroclaw POL
2016 — Mikhailov, Grigory Konstantino vs Mayorov, Boris Ivanovich — 1/2-1/2 — ICCF
2018 — Matlakov, Maxim vs Popov, Ivan — 1/2-1/2 — Yaroslavl RUS
2021 — Osmak, Yuliia vs Danielian, Elina — 1/2-1/2 — Terme Catez SLO

10.Re1 — 0.4% (1 parties)

2008 — Ziegert, Andreas vs Zielinski, Sergej — 0-1 — ?

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● f2→e3, e3→d4	● a6→b5, f7→e6
Passés	—	—
Majorité	● centre 2v1	● aile_dame 3v2

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● e5 (2v1)	● b4 (2v0), ● d5 (3v2)
Cases faibles	—	—
Centre	● e5 (2v1)	● d4 (3v2), ● d5 (3v2)

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● c	● d

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 1)
Bb3	● Bb3 Actif (mob. 6)
Bb7		● Bb7 Enfermé (mob. 1)
Bf8		● Bf8 Non développé (mob. 2)
Paire de fous	● Oui	● Oui
Non développées	2 (c1, a1)	3 (f8, a8, h8)

Sécurité du roi

	♔ Blancs	♚ Noirs
Statut	● Roqué	● Au centre !
Droits de roque	—	O-O / O-O-O

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	semi-ouvert
Ruptures	● d4-d5, ● e3-e4	● …c5-c4, ● …e6-e5

Partie
1934 Trebitsch mem17 – Round 8 – Gruenfeld, Ernst – 1-0 – Lenner Leopold – G16 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 c5 5. Bxc4 e6 6. O-O a6 7. Qe2 Nc6 8. Nc3 b5 9. Bb3 Bb7 10. Rd1 b4
1934 Trebitsch Memorial 17th – Round 8 – Hoenlinger, Baldur – 1-0 – Rosenberger, Coelestin – G11 1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. e3 a6 5. Nc3 dxc4 6. Bxc4 b5 7. Bb3 c5 8. O-O Nc6 9. Qe2 Bb7 10. Rd1 Qc7
1935 Warsaw POL – Round 6 – Gruenfeld, Ernst – 1/2-1/2 – Book, Eero – G25 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O Nc6 7. Qe2 a6 8. Nc3 b5 9. Bb3 Bb7 10. Rd1 Qb6
1936 Nottingham – Round 15 – Reshevsky, Samuel – 1-0 – Vidmar, Milan Sr – G96 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 e6 5. Bd3 dxc4 6. Bxc4 c5 7. O-O a6 8. Nc3 b5 9. Bb3 Bb7 10. Qe2 Nc6
1937 Kemeri – Round ? – Stahlberg, Gideon – 1-0 – Book, Eero – G148 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. Qe2 Nc6 8. Nc3 b5 9. Bb3 Bb7 10. Rd1 Qb6
1937 Ostende – Round 5 – Dunkelblum, Arthur – 1/2-1/2 – Landau, Salo – G23 1. d4 d5 2. Nf3 Nf6 3. c4 dxc4 4. e3 e6 5. Bxc4 c5 6. O-O Nc6 7. Qe2 a6 8. Nc3 b5 9. Bb3 Bb7 10. Rd1 Qb6
1946 Groningen – Round 12 – Najdorf, Miguel – 1-0 – Christoffel, Martin – G53 1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 Nf6 5. e3 a6 6. Bd3 dxc4 7. Bxc4 b5 8. Bb3 c5 9. O-O Bb7 10. Qe2 Nc6
1946 JUG Ch – Round 6 – Bozic, Aleksandar – 0-1 – Kindij Igor – G20 1. d4 d5 2. Nf3 Nf6 3. c4 dxc4 4. e3 c5 5. Bxc4 e6 6. O-O Nc6 7. Nc3 a6 8. Qe2 b5 9. Bb3 Bb7 10. Rd1 c4
1946 Stockholm 4647 – Round ? – Nilsson, Zandor – 0-1 – Ekstrom, Folke – G6 1. d4 d5 2. Nf3 Nf6 3. c4 dxc4 4. e3 c5 5. Bxc4 e6 6. O-O a6 7. Qe2 Nc6 8. Nc3 b5 9. Bb3 Bb7 10. Rd1 Qc7
1947 Leningrad ch-URS – Round 1 – Kan, Ilya A – 1/2-1/2 – Klaman, Konstantin Mikhailovich – G9 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 c5 5. Bxc4 e6 6. O-O a6 7. Qe2 Nc6 8. Nc3 b5 9. Bb3 Bb7 10. Rd1 Be7
1947 Vienna SCHLECHTER-mem – Round 6 – Gruenfeld, Ernst – 1/2-1/2 – Lokvenc, Josef – G13 1. d4 d5 2. Nf3 Nf6 3. c4 dxc4 4. e3 e6 5. Bxc4 a6 6. O-O c5 7. Qe2 Nc6 8. Nc3 b5 9. Bb3 Bb7 10. Rd1 Qc7
1948 New York – Round 1 – Byrne, David – 1-0 – Pinkus, Albert – G14 1. Nf3 d5 2. c4 dxc4 3. e3 c5 4. Bxc4 Nc6 5. d4 e6 6. O-O Nf6 7. Qe2 a6 8. Nc3 b5 9. Bb3 Bb7 10. Rd1 Qc7
1948 New York – Round 7 – Euwe, Max – 1-0 – Kramer, George – G36 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 a6 5. Bxc4 e6 6. O-O c5 7. Qe2 Nc6 8. Nc3 b5 9. Bb3 Bb7 10. Rd1 Qc7
1949 Baarn – Round 1 – Spanjaard, Eduard – 1-0 – Tordion Serge – G1 1. d4 d5 2. c4 dxc4 3. Nf3 a6 4. e3 Nf6 5. Bxc4 e6 6. O-O c5 7. Qe2 Nc6 8. Nc3 b5 9. Bb3 Bb7 10. Rd1 Qc7
1951 Wertheim Memorial – Round 10 – O'Kelly de Galway, Alberic – 1/2-1/2 – Evans, Larry M – G55 1. d4 d5 2. Nf3 Nf6 3. c4 dxc4 4. e3 a6 5. Bxc4 e6 6. O-O c5 7. Qe2 b5 8. Bb3 Nc6 9. Nc3 Bb7 10. Rd1 Qc7
1951 YUG Ch 7th – Round 16 – Fuderer, Andrija – 0-1 – Andric, Dragoslav – G132 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. Nc3 Nc6 8. Qe2 b5 9. Bb3 Bb7 10. Rd1 Qc7
1952 Hollywood – Round 1 – Cross, Jaden – 1/2-1/2 – Joyner, Lionel – G7 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. Qe2 Nc6 8. Nc3 b5 9. Bb3 Bb7 10. dxc5 Bxc5
1954 Bucharest – Round 12 – Sandor, Bela – 1-0 – Sliwa, Bogdan – G101 1. c4 Nf6 2. Nf3 e6 3. Nc3 d5 4. d4 c5 5. e3 Nc6 6. Bd3 dxc4 7. Bxc4 a6 8. O-O b5 9. Bb3 Bb7 10. Qe2 Qc7
1954 Hastings5455 – Round 4 – Phillips, Alan – 0-1 – Keres, Paul Petrovich – G14 1. c4 Nf6 2. Nc3 e6 3. Nf3 c5 4. e3 d5 5. d4 Nc6 6. Bd3 a6 7. O-O dxc4 8. Bxc4 b5 9. Bb3 Bb7 10. Qe2 cxd4
1955 USSR – Round 3 – Lutikov, Anatoly S – 1/2-1/2 – Estrin, Yakov – G4 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. e3 c5 5. Bd3 Nc6 6. O-O a6 7. Nc3 dxc4 8. Bxc4 b5 9. Bb3 Bb7 10. Qe2 cxd4
1955 Zittau-A 5th – Round 7 – Bertholdt, Dieter – 0-1 – Golz, Werner – G25 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 a6 5. Bxc4 e6 6. O-O c5 7. Qe2 Nc6 8. Nc3 b5 9. Bb3 Bb7 10. Rd1 c4
1956 Manhattan CC Ch sf-C 5657 – Round ? – Brandts, Paul – 0-1 – Bisguier, Arthur B – G9 1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. Nc3 c5 5. e3 Nc6 6. Bd3 dxc4 7. Bxc4 a6 8. O-O b5 9. Bb3 Bb7 10. Qe2 Qc7
1957 Danmarksmesterskabet – Round 3 – Ravn, Palle – 1-0 – Blom, Kaj – G8 1. d4 d5 2. Nf3 Nf6 3. c4 dxc4 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. Qe2 Nc6 8. Nc3 b5 9. Bb3 Bb7 10. Rd1 Qb6
1959 York ch-BCF – Round 1 – Barden, Leonard – 1/2-1/2 – Clough, Fred – G6 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. Nc3 b5 8. Bb3 Bb7 9. Qe2 Nc6 10. Rd1 Qc7
1961 Kiev (Ukraine) – Round 10 – Kots, Yuri I – 1-0 – Gorenstein, Rafail Yakovlevich – G16 1. c4 Nf6 2. Nc3 e6 3. Nf3 c5 4. e3 d5 5. d4 Nc6 6. Bd3 dxc4 7. Bxc4 a6 8. O-O b5 9. Bb3 Bb7 10. Qe2 cxd4
1961 New York ch-USA – Round 7 – Byrne, Ray – 1-0 – Kramer, Gerald – G33 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. Qe2 Nc6 8. Nc3 b5 9. Bb3 Bb7 10. Rd1 Qb6
1968 Belgrade – Round 1 – Bukic, Enver – 1/2-1/2 – Messing, Hrvoje – G7 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O Nc6 7. Nc3 a6 8. Qe2 b5 9. Bb3 Bb7 10. Rd1 Qb8
American Cup Champ 2023 – Round 2.4 – Caruana, Fabiano – 1/2-1/2 – So, Wesley – G20 1. d4 d5 2. c4 dxc4 3. e3 Nf6 4. Nf3 e6 5. Bxc4 c5 6. Nc3 a6 7. Bb3 Nc6 8. O-O b5 9. Qe2 Bb7 10. Rd1 Be7
Saint Louis Rapid 2021 – Round 7.3 – Nakamura, Hikaru – 1-0 – Dominguez Perez, Leinier – G33 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O Nc6 7. Nc3 a6 8. Qe2 b5 9. Bb3 Bb7 10. d5 Nxd5
World Blitz 2015 – Round 5.20 – Tomashevsky, Evgeny – 1-0 – Donchenko, Alexander – G288 1. c4 Nf6 2. Nc3 c5 3. Nf3 Nc6 4. e3 e6 5. d4 d5 6. cxd5 Nxd5 7. Bc4 Nf6 8. O-O a6 9. Qe2 b5 10. Bb3 Bb7
World Blitz 2018 – Round 12.37 – Potkin, Vladimir – 1-0 – Van Foreest, Jorden – G720 1. Nf3 d5 2. e3 Nf6 3. c4 e6 4. Nc3 c5 5. d4 dxc4 6. Bxc4 Nc6 7. O-O a6 8. Bb3 b5 9. Qe2 Bb7 10. Rd1 Qc7
World Blitz 2019 – Round 15.80 – Tran, Tuan Minh – 1-0 – Xu, Xiangyu – G1047 1. c4 e6 2. Nc3 d5 3. d4 dxc4 4. Nf3 c5 5. e3 Nf6 6. Bxc4 a6 7. O-O Nc6 8. Bb3 b5 9. Qe2 Bb7 10. Rd1 Be7

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