D26n — QGA: Classical, Furman, 6…a6 7.dxc5 Bxc5 8.O-O Nc6

1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6 5.Bxc4 c5 6.Qe2 a6 7.dxc5 Bxc5 8.O-O Nc6 * ○ Trait aux Blancs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

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Plans. e4 (Occuper le centre — 58 % des parties) ; a3 (Préparer expansion aile dame — 25 % des parties) ; Nbd2 (Développer b1 — 6 % des parties) ; Rd1 (Tour sur colonne ouverte d — 6 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

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Plans. ...b5 (Expansion aile dame — 48 % des parties) ; ...Qc7 (Prépare O-O-O — 18 % des parties) ; ...O-O (Mettre le roi en sécurité, connecter les tours — 15 % des parties) ; ...Bd6 (Fou actif (mobilité 11) — 6 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● f2→e3	● b7→a6, f7→e6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	—	● b4 (2v0), ● d5 (3v1)
Cases faibles	—	—
Centre	—	● d4 (3v2), ● d5 (3v1), ● e4 (1v0)

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Ouvertes	● c, ● d	● c, ● d

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 1)
Bc4	● Bc4 Actif (mob. 6)
Bc5		● Bc5 Actif (mob. 9)
Bc8		● Bc8 Non développé (mob. 1)
Paire de fous	● Oui	● Oui
Non développées	3 (● b1, ● c1, ● a1)	3 (● c8, ● 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	mobile

Partie
1927 London – Round 1 – Buerger, Victor – 1/2-1/2 – Bogoljubow, Efim – G1 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O Nc6 7. Qe2 a6 8. dxc5 Bxc5 9. a3 b5 10. b4 Bd6
1935 Bad Nauheim – Round 3 – Ahues, Carl – 1-0 – Roedl, Ludwig – G11 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 c5 5. Bxc4 e6 6. Qe2 Nc6 7. O-O a6 8. dxc5 Bxc5 9. a3 b5 10. Bd3 O-O
1937 Gothenburg m – Round 6 – Stahlberg, Gideon – 1/2-1/2 – Fine, Reuben – G12 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. Qe2 Nc6 8. dxc5 Bxc5 9. a3 b5 10. Bd3 O-O
1941 Ventnor City – Round 8 – Reinfeld, Fred – 1/2-1/2 – Santasiere, Anthony – G27 1. Nf3 Nf6 2. c4 c6 3. d4 d5 4. e3 e6 5. Bd3 dxc4 6. Bxc4 c5 7. O-O a6 8. Qe2 Nc6 9. dxc5 Bxc5 10. e4 b5
1960 Leningrad ch-URS – Round 4 – Averbakh, Yuri L – 1/2-1/2 – Suetin, Alexey S – G30 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. Qe2 a6 7. dxc5 Bxc5 8. O-O Nc6 9. e4 b5 10. e5 bxc4
1966 Mar del Plata 27th – Round 2 – Reshevsky, Samuel – 1/2-1/2 – Portisch, Lajos – G5 1. d4 d5 2. c4 dxc4 3. Nf3 a6 4. e3 Nf6 5. Bxc4 e6 6. Qe2 c5 7. dxc5 Bxc5 8. O-O Nc6 9. Nc3 O-O 10. Bd3 Bd7
1966 Parcetic Memorial 2nd – Round 6 – Malich, Burkhard, Dr. – 1/2-1/2 – Barczay, Laszlo – G24 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. Qe2 a6 7. dxc5 Bxc5 8. O-O Nc6 9. e4 Qc7 10. e5 Ng4
1967 Maribor – Round 12 – Minev, Nikolay N – 1/2-1/2 – Zinn, Lothar – G65 1. d4 d5 2. Nf3 Nf6 3. c4 dxc4 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. dxc5 Bxc5 8. Qe2 Nc6 9. a3 b5 10. Bd3 Bb7
Candidats Tournament 1985 – Round 3 – Nogueiras Santiago, Jesus – 1/2-1/2 – Seirawan, Yasser – G13 1. d4 d5 2. c4 dxc4 3. Nf3 c5 4. e3 Nf6 5. Bxc4 e6 6. Qe2 a6 7. dxc5 Bxc5 8. O-O Nc6 9. e4 Qc7 10. e5 Ng4
Corus A 2006 – Round 4 – Sokolov, Ivan. – 1/2-1/2 – Anand, Viswanathan – G22 1. d4 d5 2. c4 dxc4 3. e3 Nf6 4. Bxc4 e6 5. Nf3 c5 6. Qe2 a6 7. dxc5 Bxc5 8. O-O Nc6 9. Nc3 Qc7 10. Bd2 O-O
Kosmos m 5' 1998 – Round 15 – Kramnik, Vladimir – 1/2-1/2 – Kasparov, Garry – G15 1. Nf3 d5 2. d4 Nf6 3. c4 c6 4. e3 e6 5. Bd3 dxc4 6. Bxc4 c5 7. O-O Nc6 8. Qe2 a6 9. dxc5 Bxc5 10. a3 b5
Levitov Chess Week Rapid 2023 – Round 6.2 – Dubov, Daniil – 1/2-1/2 – So, Wesley – G27 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. Qe2 a6 7. dxc5 Bxc5 8. O-O Nc6 9. Rd1 Qc7 10. b3 b5
Madrid 1996 – Round 2 – Gelfand, Boris – 1-0 – Salov, Valery – G4 1. d4 d5 2. c4 dxc4 3. Nf3 a6 4. e3 Nf6 5. Bxc4 e6 6. Qe2 c5 7. dxc5 Bxc5 8. O-O Nc6 9. e4 Ng4 10. e5 Nd4
Mar del Plata 1982 – Round 1 – Portisch, Lajos – 1/2-1/2 – Garcia Palermo, Carlos Horacio – G21 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. Qe2 a6 7. dxc5 Bxc5 8. O-O Nc6 9. a3 b5 10. Bd3 Bb7
PCA/Intel-GP 1995 – Round 2 – Korchnoi, Viktor – 0-1 – Lautier, Joel – G16 1. d4 d5 2. c4 dxc4 3. e3 Nf6 4. Bxc4 e6 5. Nf3 c5 6. Qe2 a6 7. dxc5 Bxc5 8. O-O Nc6 9. Nbd2 O-O 10. e4 Qc7
World Blitz 2009 – Round 7 – Tkachiev, Vladislav – 1-0 – Dominguez Perez, Leinier – G64 1. d4 d5 2. c4 dxc4 3. e3 Nf6 4. Bxc4 e6 5. Nf3 a6 6. Qe2 c5 7. dxc5 Bxc5 8. O-O Nc6 9. e4 b5 10. Bb3 Nd4
World Blitz 2015 – Round 1.27 – Swiercz, Dariusz – 0-1 – Dominguez Perez, Leinier – G18 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 a6 6. Qe2 c5 7. dxc5 Bxc5 8. O-O Nc6 9. a3 Bd6 10. Rd1 Qe7
XX SuperGM 2003 – Round 9 – Radjabov, Teimour – 1/2-1/2 – Kasparov, Garry – G25 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. Qe2 a6 7. dxc5 Bxc5 8. O-O Nc6 9. e4 b5 10. Bb3 Nd4

D26n — Classical, Furman (1927)

1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6 5.Bxc4 c5 6.Qe2 a6 7.dxc5 Bxc5 8.O-O Nc6

Les coups candidats

9.e4 — 58.3% (322 parties)

Ambassadeurs : Nogueiras Santiago, Jesus (6x), Dao, Thien Hai (5x), Jonkman, Harmen (5x), Gleizerov, Evgeny (4x), Vera Gonzalez-Quevedo, Reynaldo (4x), Danielian, Elina (4x), Todorov, Ognjan (3x), Chatalbashev, Boris (3x)

9.a3 — 25.0% (138 parties)

Ambassadeurs : Cramling, Pia (4x), Tomczak, Jacek (3x), Rashkovsky, Nukhim N (2x), Radulov, Ivan (2x), Kramnik, Vladimir (2x), Andrason, Karl Oddur (2x), Raetsky, Alexander (2x), Ederer, Karel (2x)

9.Nbd2 — 6.3% (35 parties)

Ambassadeurs : Sokolov, Ivan (3x), Lautier, Joel (2x), Wojtkiewicz, Aleksander (2x), Epishin, Vladimir (1x), Meister, Jakob (1x), Christiansen, Larry (1x), Comp Goldbar (1x), Astrom, Robert (1x)

9.Rd1 — 5.8% (32 parties)

Ambassadeurs : Beydullayeva, Govhar (3x), Isgro, Thomas R (1x), Pereira, Stephen (1x), Carpentier, Pierre (1x), Fontaine, Robert (1x), Ehlvest, Jaan (1x), Garcia Munoz, Juan Jose (1x), Sumets, Andrey (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	9.e4	9.a3	9.Nbd2	9.Rd1
<1800	8	62%	12%	—	25%
1800-2200	108	59%	25%	3%	6%
2200-2600	354	57%	27%	8%	5%
2600+	35	60%	17%	11%	9%

Évolution par décennie (% des parties)

Décennie	N parties	9.e4	9.a3	9.Nbd2	9.Rd1
1950s	2	50%	50%	—	—
1960s	6	67%	17%	—	—
1970s	4	75%	25%	—	—
1980s	32	62%	25%	3%	—
1990s	142	66%	19%	10%	2%
2000s	187	64%	19%	9%	4%
2010s	146	51%	33%	3%	11%
2020s	33	21%	52%	—	18%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
9.e4	51%	21%	▼ -29.5%
9.a3	33%	52%	▲ +18.6%
9.Nbd2	3%	0%	▼ -2.7%
9.Rd1	11%	18%	▲ +7.2%

Joueurs célèbres

Champions du monde dans cette position

Kramnik, Vladimir — 3 parties
Kasparov, Garry — 2 parties
Anand, Viswanathan — 2 parties
Ju, Wenjun — 2 parties
Karpov, Anatoly — 1 partie

Parties historiques

9.e4 — 58.3% (322 parties)

1959 — Furman, Semyon vs Suetin, Alexey S — 0-1 — Tallin URS
1960 — Averbakh, Yuri L vs Suetin, Alexey S — 1/2-1/2 — Leningrad ch-URS
1965 — Lengyel, Levente vs Foldi, Istvan Sr. — 1/2-1/2 — Budapest HUN
1966 — Malich, Burkhard, Dr. vs Barczay, Laszlo — 1/2-1/2 — Sombor
1967 — Schmidt, Michael vs Brameyer, Hermann — 1/2-1/2 — Colditz GER

9.a3 — 25.0% (138 parties)

1953 — Budrich, Edmund vs Herrmann, Ludwig — 1-0 — Jena GER
1967 — Minev, Nikolay N vs Zinn, Lothar — 1/2-1/2 — Maribor
1973 — Hjorth, Sune vs Aabel, Anders — 1-0 — corr SWE/K
1980 — Rashkovsky, Nukhim N vs Agzamov, Georgy — 1/2-1/2 — Tashkent UZB
1982 — Portisch, Lajos vs Garcia Palermo, Carlos Horacio — 1/2-1/2 — Mar del Plata ARG

9.Nbd2 — 6.3% (35 parties)

1988 — Epishin, Vladimir vs Meister, Jakob — 1/2-1/2 — Barnaul
1992 — Lautier, Joel vs Dorfman, Iossif — 0-1 — Barcelona ESP
1993 — Blagojevic, Dragisa vs Djukic, Zeljko — 1/2-1/2 — Cetinje
1993 — Polgar, Susan vs Anand, Viswanathan — 1/2-1/2 — Monte Carlo MNC
1995 — Robatsch, Karl vs Petran, Pal — 0-1 — Austria

9.Rd1 — 5.8% (32 parties)

1990 — Ehlvest, Jaan vs Garcia Munoz, Juan Jose — 1-0 — Seville ESP
1996 — Isgro, Thomas R vs Pereira, Stephen — 1-0 — EKTH-165
1996 — Carpentier, Pierre vs Fontaine, Robert — 0-1 — France
2000 — Sumets, Andrey vs Skliar, Andrey — 1-0 — Sevastopol UKR
2001 — Bechler, Falk Michael vs Arnold Klein Mudidi — 1-0 — ?

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