D52n — QGD: Cambridge Springs, 8.Qc2 O-O 9.Be2

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Nbd7 5.e3 c6 6.Nf3 Qa5 7.Nd2 Bb4 8.Qc2 O-O 9.Be2 * ● Trait aux Noirs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plan principal. Exploiter la case forte f4.

Atouts. Les Blancs s'appuient sur la case forte f4, des fous actifs en e2 et g5 et la paire de fous.

Côté adverse. Le fou enfermé en c8.

En contrepartie. Le roi n'est pas encore à l'abri et plusieurs pièces dorment encore (les tours a1 et h1).

Plans. O-O (Mettre le roi en sécurité, connecter les tours).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plan principal. Exploiter la case forte e4.

Atouts. Les Noirs s'appuient sur un avant-poste en e4, un fou actif en b4 et la paire de fous.

Côté adverse. Un mauvais fou en g5 et le roi resté au centre.

En contrepartie. Plusieurs pièces dorment encore (le fou c8 et la tour a8).

Plans. ...c5 (Rupture) ; ...e5 (Rupture).

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● f2→e3, e3→d4	● c6→d5, e6→d5, b7→c6, f7→e6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● f4 (2v0)	—
Cases faibles	● e4	—
Centre	● d4 (1v0), ● e4 (3v2)	● d5 (4v2)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Be2	● Be2 Actif (mob. 6)
Bg5	● Bg5 Actif (mob. 4)
Bb4		● Bb4 Actif (mob. 5)
Bc8		● Bc8 Non développé (mob. 0)
Paire de fous	● Oui	● Oui
Non développées	2 (● a1, ● h1)	2 (● c8, ● a8)

Sécurité du roi

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

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	fermé
Ruptures	● c4-c5, ● e3-e4	● …c6-c5, ● …e6-e5

Partie
1925 Debrecen – Round 1 – Havasi, Kornel – 1-0 – Vukovic, Vladimir – G49 1. d4 Nf6 2. Nf3 e6 3. c4 d5 4. Nc3 Nbd7 5. Bg5 c6 6. e3 Qa5 7. Nd2 Bb4 8. Qc2 O-O 9. Be2 Re8 10. O-O e5
1926 Hastings Premier /27 7th – Round 5 – Teller, Alfred – 0-1 – Buerger, Victor – G20 1. Nf3 d5 2. d4 Nf6 3. c4 e6 4. Nc3 Nbd7 5. Bg5 c6 6. e3 Qa5 7. Nd2 Bb4 8. Qc2 O-O 9. Be2 Re8 10. O-O e5
1929 Karlsbad – Round 8 – Saemisch, Friedrich – 0-1 – Bogoljubow, Efim – G175 1. d4 d5 2. Nf3 e6 3. c4 Nd7 4. Nc3 Ngf6 5. Bg5 c6 6. e3 Qa5 7. Nd2 Bb4 8. Qc2 O-O 9. Be2 dxc4 10. Bxf6 Nxf6
1929 Odessa ch-URS – Round 1 – Izmailov, Petr A – 1-0 – Botvinnik, Mikhail – G13 1. d4 Nf6 2. Nf3 e6 3. c4 d5 4. Bg5 Nbd7 5. Nc3 c6 6. e3 Qa5 7. Qc2 Bb4 8. Nd2 O-O 9. Be2 b6 10. O-O Bxc3
1929 World Championship 14th – Round 9 – Rubinstein, Akiba – 1/2-1/2 – De La Torre Huertas, Carlos – G9 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 Nbd7 6. e3 Qa5 7. Nd2 Bb4 8. Qc2 O-O 9. Be2 dxc4 10. Bxf6 Nxf6
1930 Swinemuende – Round 1 – Saemisch, Friedrich – 1-0 – Koch, Berthold – G1 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Bg5 c6 5. e3 Nbd7 6. Nf3 Qa5 7. Nd2 Bb4 8. Qc2 O-O 9. Be2 Ne4 10. Ndxe4 dxe4
1931 Argentina – Round 5 – Bolbochan, J. – 1/2-1/2 – Pleci, Isaias – G12 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Bg5 Nbd7 5. e3 c6 6. Nf3 Qa5 7. Nd2 Bb4 8. Qc2 O-O 9. Be2 Ne4 10. Ndxe4 dxe4
1931 Budapest – Round 11 – Szigeti, Miklos – 1-0 – Havasi, Kornel – G60 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Nbd7 5. e3 c6 6. Nf3 Qa5 7. Nd2 Bb4 8. Qc2 O-O 9. Be2 dxc4 10. Bxf6 Nxf6
1931 DSB-27.Kongress – Round ? – Rellstab, Ludwig Sr – 1/2-1/2 – Ahues, Carl – G5 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Nbd7 5. e3 c6 6. Nf3 Qa5 7. Nd2 Bb4 8. Qc2 O-O 9. Be2 dxc4 10. Bxf6 Nxf6
1931 Praag olm – Round 15 – Kashdan, Isaac – 1/2-1/2 – Bogoljubow, Efim – G58 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c6 5. Bg5 Nbd7 6. e3 Qa5 7. Nd2 Bb4 8. Qc2 O-O 9. Be2 dxc4 10. Bxf6 Nxf6
1931 Prague CSR – Round 9 – Gruenfeld, Ernst – 1-0 – Rosselli del Turco, Stefano – G23 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Bg5 Nbd7 5. e3 c6 6. Nc3 Qa5 7. Nd2 Bb4 8. Qc2 O-O 9. Be2 b6 10. O-O Bxc3
1931 Trebitsch mem14 – Round 2 – Hoenlinger, Baldur – 1/2-1/2 – Gruenfeld, Ernst – G3 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Nbd7 5. Bg5 c6 6. e3 Qa5 7. Nd2 Bb4 8. Qc2 O-O 9. Be2 dxc4 10. Bxf6 Nxf6
1937 Bad Nauheim/Stuttgart/Garmisch – Round 3 – Saemisch, Friedrich – 1-0 – Bogoljubow, Efim – G6 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 c6 5. Bg5 Nbd7 6. e3 Qa5 7. Nd2 Bb4 8. Qc2 O-O 9. Be2 dxc4 10. Bxf6 Nxf6
1937 Stockholm ol – Round 4 – Vistaneckis, Isakas – 0-1 – Zinner, Emil – G23 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Nbd7 5. Nf3 c6 6. e3 Qa5 7. Nd2 Bb4 8. Qc2 O-O 9. Be2 dxc4 10. Bxf6 Nxf6
1939 Leningrad ch-URS – Round 13 – Makogonov, Vladimir – 1/2-1/2 – Ragozin, Viacheslav – G104 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Nbd7 5. e3 c6 6. Nf3 Qa5 7. Nd2 Bb4 8. Qc2 O-O 9. Be2 dxc4 10. Bxf6 Nxf6
1941 Munchen – Round 7 – Nielsen, Bardur – 1/2-1/2 – Bogoljubow, Efim – G55 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Bg5 Nbd7 5. e3 c6 6. Nf3 Qa5 7. Nd2 Bb4 8. Qc2 O-O 9. Be2 dxc4 10. Bxf6 Nxf6
1945 Blomberg – Round 13 – Darznieks Artur – 1-0 – Jursevskis Miervaldis – G10 1. d4 d5 2. Nf3 e6 3. c4 Nf6 4. Bg5 Nbd7 5. e3 c6 6. Nc3 Qa5 7. Nd2 Bb4 8. Qc2 O-O 9. Be2 Re8 10. O-O dxc4
1946 Londen I – Round 7 – Friedmann, O. – 0-1 – Tartakower, Savielly – G21 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Bg5 c6 5. e3 Nbd7 6. Nf3 Qa5 7. Nd2 Bb4 8. Qc2 O-O 9. Be2 Ne4 10. Ndxe4 dxe4
1947 American Zone Ch – Round ? – Sämisch, Friedrich – 0-1 – Jursevskis Miervaldis – G8 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 Nbd7 5. Bg5 c6 6. e3 Qa5 7. Nd2 Bb4 8. Qc2 O-O 9. Be2 dxc4 10. Bxf6 Nxf6
1949 Mar del Plata – Round 1 – Pomar Salamanca, Arturo – 1/2-1/2 – Letelier Martner, Rene – G8 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Bg5 c6 5. e3 Nbd7 6. Nf3 Qa5 7. Nd2 Bb4 8. Qc2 O-O 9. Be2 dxc4 10. Bxf6 Nxf6
1949 Schlechter Memorial – Round 1 – Beni, Alfred – 1/2-1/2 – Paoli, Enrico – G8 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Nbd7 5. e3 c6 6. Nf3 Qa5 7. Nd2 Bb4 8. Qc2 O-O 9. Be2 dxc4 10. Bxf6 Nxf6
1950 FRG Ch 01st – Round 12 – Lange, Wilfried – 1-0 – Schindler, Josef – G14 1. Nf3 d5 2. d4 e6 3. c4 Nf6 4. Bg5 Nbd7 5. Nc3 c6 6. e3 Qa5 7. Nd2 Bb4 8. Qc2 O-O 9. Be2 dxc4 10. Bxf6 Nxf6
1950 Vienna – Round 6 – Gruenfeld, Ernst – 1-0 – Soluch, Leopold – G18 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Nbd7 5. Bg5 c6 6. e3 Qa5 7. Nd2 Bb4 8. Qc2 O-O 9. Be2 Re8 10. O-O Bxc3
1964 ESP Ch 29th – Round 18 – Pomar Salamanca, Arturo – 1-0 – Merino Mejuto, Domingo – G74 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Bg5 Nbd7 5. e3 c6 6. Nf3 Qa5 7. Nd2 Bb4 8. Qc2 O-O 9. Be2 Re8 10. O-O Bxc3
20. European Teams 2015 – Round 1.2 – Korobov, Anton – 1-0 – Deac, Bogdan-Daniel – G28 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c6 5. Bg5 Nbd7 6. e3 Qa5 7. Nd2 Bb4 8. Qc2 O-O 9. Be2 c5 10. Bf4 cxd4
Corsica Masters KO 2003 – Round 1.2 – Sasikiran, Krishnan – 1/2-1/2 – Gurevich, Mikhail – G2 1. Nf3 d5 2. d4 Nf6 3. c4 c6 4. Nc3 e6 5. Bg5 Nbd7 6. e3 Qa5 7. Nd2 Bb4 8. Qc2 O-O 9. Be2 c5 10. Nb3 Qc7
PCA/Intel-GP 1994 – Round 1 – Azmaiparashvili, Zurab – 1/2-1/2 – Ivanchuk, Vasyl – G1 1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 Nf6 5. Bg5 Nbd7 6. e3 Qa5 7. Nd2 Bb4 8. Qc2 O-O 9. Be2 c5 10. Nb3 Bxc3+
World Blitz 2007 – Round 11 – Bacrot, Etienne – 1/2-1/2 – Dreev, Aleksey – G101 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 e6 5. Bg5 Nbd7 6. e3 Qa5 7. Nd2 Bb4 8. Qc2 O-O 9. Be2 c5 10. O-O cxd4
World Blitz 2016 – Round 13.10 – Radjabov, Teimour – 1-0 – Dreev, Aleksey – G505 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 e6 5. Bg5 Nbd7 6. e3 Qa5 7. Nd2 Bb4 8. Qc2 O-O 9. Be2 c5 10. Bxf6 Nxf6
World Rapid 2016 – Round 12.27 – Anton Guijarro, David – 1-0 – Dubov, Daniil – G458 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c6 5. Bg5 Nbd7 6. e3 Qa5 7. Nd2 Bb4 8. Qc2 O-O 9. Be2 c5 10. Bf4 cxd4

D52n — Cambridge Springs

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Nbd7 5.e3 c6 6.Nf3 Qa5 7.Nd2 Bb4 8.Qc2 O-O 9.Be2

Les coups candidats

9…e5 — 34.6% (670 parties) →

Ambassadeurs : Stadler, Pavel (11x), Wiesinger, Johann (9x), Cvetkovic, Srdjan (7x), Nikolac, Juraj (5x), Zielinski, Sergej (5x), Bogoljubow, Efim (4x), Weiss, Peter (4x), Pramann, Adele (4x)

9…dxc4 — 26.8% (520 parties)

Ambassadeurs : Bogoljubow, Efim (5x), Aliyev, Rasim (5x), Zielinski, Sergej (4x), Johnston, Allan (4x), Henri, Veronica (4x), Tudor, Vasile (4x), Saemisch, Friedrich (3x), ? (3x)

9…c5 — 22.7% (440 parties)

Ambassadeurs : Dreev, Aleksey (12x), Ivanchuk, Vasyl (8x), Korneva, Marina (6x), De la Calle, Israel (5x), Ovsejevitsch, Sergei (4x), Gurevich, Michael (4x), Bacrot, Etienne (4x), Brunsteins, Daniel (4x)

9…Re8 — 6.9% (133 parties)

Ambassadeurs : Gavin Roche, Enrique (3x), Sanz Sanz, Clemente (2x), Abraham, Jan (2x), Nguyen, Thi Thuy Trien (2x), Mundsztuk (1x), Crockett, Davin Curtis (1x), Galvin BStJ (1x), O Hanlon John (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	9…e5	9…dxc4	9…c5	9…Re8
<1800	47	30%	43%	11%	11%
1800-2200	682	29%	30%	21%	9%
2200-2600	713	40%	21%	32%	2%
2600+	35	14%	6%	80%	—

Évolution par décennie (% des parties)

Décennie	N parties	9…e5	9…dxc4	9…c5	9…Re8
1890s	2	—	—	—	—
1900s	1	—	100%	—	—
1920s	15	47%	13%	7%	13%
1930s	37	24%	35%	—	14%
1940s	16	44%	25%	—	19%
1950s	10	50%	30%	—	10%
1960s	7	43%	14%	—	29%
1970s	30	50%	23%	—	7%
1980s	108	52%	25%	3%	9%
1990s	306	39%	27%	14%	8%
2000s	587	36%	22%	24%	9%
2010s	720	28%	31%	31%	4%
2020s	100	33%	29%	32%	2%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
9…e5	28%	33%	▲ +4.7%
9…dxc4	31%	29%	▼ -1.8%
9…c5	31%	32%	▲ +1.0%
9…Re8	4%	2%	▼ -2.4%

Joueurs célèbres

Champions du monde dans cette position

Kasparov, Garry — 3 parties
Botvinnik, Mikhail — 2 parties
Smyslov, Vladimir — 2 parties
Ju, Wenjun — 2 parties
Alekhine, Alexander — 1 partie
Kramnik, Vladimir — 1 partie
Carlsen, Magnus — 1 partie

Parties historiques

9…e5 — 34.6% (670 parties)

1923 — Gruenfeld, Leo vs Boglyubov — 0-1 — Mahrisch-Ostrau -
1923 — Gruenfeld, Ernst vs Bogoljubow, Efim — 1/2-1/2 — Maehrisch Ostrau
1924 — Romanovsky, Pjotr vs Bogoljubow, Efim — 0-1 — Match Leningrad RUS
1924 — Romanovsky, Pjotr vs Bogoljubow, Efim — 0-1 — Leningrad RUS
1925 — Gothilf, Solomon Borisovich vs Bogoljubow, Efim — 1/2-1/2 — Leningrad RUS

9…dxc4 — 26.8% (520 parties)

1904 — Wilcox, FF. vs Goldberg, Adam W — 1-0 — Cable Match
1929 — Rubinstein, Akiba vs De La Torre Huertas, Carlos — 1/2-1/2 — Deutschland/Niederlande
1929 — Saemisch, Friedrich vs Bogoljubow, Efim — 0-1 — Carlsbad CZE
1931 — Szigeti, Miklos vs Havasi, Kornel — 1-0 — Budapest HUN
1931 — Rellstab, Ludwig Sr vs Ahues, Carl — 1/2-1/2 — Swinemuende GER

9…c5 — 22.7% (440 parties)

1929 — Aguilera Bonaque, Juan Carlos vs Monticelli, Mario — 0-1 — Barcelona ESP
1980 — Pomar Salamanca, Arturo vs Taruffi, Daniele — 1-0 — Valetta
1983 — Bass, Leonid vs Lein, Anatoly — 1/2-1/2 — New York, NY USA
1988 — Victor, Gary vs Janahi, Khalid — 1/2-1/2 — Thessaloniki GRE
1990 — Volodin, Viktor vs Orso, Miklos — 0-1 — Budapest HUN

9…Re8 — 6.9% (133 parties)

1925 — Havasi, Kornel vs Vukovic, Vladimir — 1-0 — Debrecen HUN
1926 — Teller, Alfred vs Buerger, Victor — 0-1 — Hastings Town Hall
1930 — De Souza Mendes, Joao vs Lacerda Guimaraes, Jose — 1/2-1/2 — Rio de Janeiro BRA
1933 — Zinner, Emil vs Foltys, Jan — 1/2-1/2 — Maehrisch Ostrau
1934 — Stoltz, Gosta vs Reinhardt, Enrique — 0-1 — Bad Niendorf

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