Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● f2→e3	● f7→e6
Passés	—	—
Majorité	● aile dame 3v2	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● d4 (3v1)	● d5 (3v2)
Cases faibles	—	● d6
Centre	● d4 (3v1), ● e5 (1v0)	● d5 (3v2), ● e4 (1v0)

Colonnes et diagonales

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

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 1)
Bc4	● Bc4 Actif (mob. 8)
Bc8		● Bc8 Non développé (mob. 1)
Bf8		● Bf8 Non développé (mob. 3)
Paire de fous	● Oui	● Oui
Non développées	4 (● b1, ● 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	mobile
Ruptures	● c5-c6	—

D26g — QGA: Classical, Early Queenswap

1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6 5.Bxc4 c5 6.dxc5 * ● Trait aux Noirs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plans. Qxd8+ (Prépare O-O-O — 8 % des parties) ; O-O (Mettre le roi en sécurité, connecter les tours — 1 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plans. ...Qxd1+ (Prépare O-O-O — 88 % des parties) ; ...Bxc5 (Fou actif (mobilité 8), Développer f8 — 10 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Partie
1961 Maroczy Memorial Budapest HUN – Round 1 – Portisch, Lajos – 1/2-1/2 – Bilek, Istvan – G13 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. dxc5 Qxd1+ 7. Kxd1 Bxc5 8. a3 a6 9. b4 Bd6 10. Bb2 b5
1961 Moskou – Round 1 – Petrosian, Tigran A. – 1/2-1/2 – Bronstein, David I – G23 1. d4 d5 2. Nf3 Nf6 3. c4 dxc4 4. e3 e6 5. Bxc4 c5 6. dxc5 Bd7 7. O-O Bxc5 8. Qe2 Bc6 9. Nc3 Bb4 10. Rd1 Nbd7
1961 Moskou – Round 1 – Petrosian, Tigran A. – 1/2-1/2 – Tarasov, Vadim – G16 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. dxc5 Qxd1+ 7. Kxd1 Bxc5 8. Ke2 a6 9. Bd3 Nc6 10. Nc3 Bd7
1961 Santa Fe – Round 5 – Filip, Marius Liviu – 1/2-1/2 – Byrne, Ray – G19 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. dxc5 Qxd1+ 7. Kxd1 Bxc5 8. a3 a6 9. b4 Be7 10. Bb2 b5
1962 Asztalos Memorial 5th – Round 14 – Lengyel, Levente – 1/2-1/2 – Haag, Ervin – G102 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. dxc5 Qxd1+ 7. Kxd1 Bxc5 8. Ke2 a6 9. a3 b5 10. Bd3 Bb7
1962 Hungary – Round 8 – Bilek, Istvan – 1/2-1/2 – Portisch, Lajos – G61 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. dxc5 Qxd1+ 7. Kxd1 Bxc5 8. Ke2 Ke7 9. a3 a6 10. b4 Bd6
1965 Tallinn ch-URS – Round 1 – Khasin, Abram – 1/2-1/2 – Bronstein, David I – G31 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. dxc5 Qxd1+ 7. Kxd1 Bxc5 8. a3 b6 9. b4 Be7 10. Bb2 Bb7
1965 Zagreb – Round 16 – Uhlmann, Wolfgang – 1/2-1/2 – Petrosian, Tigran A. – G158 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. dxc5 Qxd1+ 7. Kxd1 Bxc5 8. a3 Bd6 9. Nc3 a6 10. Bd3 Nbd7
1965 Zagreb – Round 19 – Filip, Marius Liviu – 1/2-1/2 – Padevsky, Nikola – G186 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. dxc5 Qxd1+ 7. Kxd1 Bxc5 8. a3 a6 9. b4 Bd6 10. Bb2 b5
1966 Mar del Plata – Round 13 – Uhlmann, Wolfgang – 1/2-1/2 – Eliskases, Erich – G58 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. dxc5 Qxd1+ 7. Kxd1 Bxc5 8. a3 a6 9. b4 Bd6 10. Bb2 Nbd7
1966 Titovo Uzice – Round ? – Averbakh, Yuri L – 1/2-1/2 – Suetin, Alexey S – G99 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. dxc5 Qxd1+ 7. Kxd1 Bxc5 8. a3 a6 9. b4 Bd6 10. Bb2 b5
1966 Titovo Uzice – Round 1 – Averbakh, Yuri L – 1/2-1/2 – Suetin, Alexey S – G14 1. d4 d5 2. Nf3 Nf6 3. c4 dxc4 4. e3 e6 5. Bxc4 c5 6. dxc5 Qxd1+ 7. Kxd1 Bxc5 8. a3 a6 9. b4 Bd6 10. Bb2 b5
1967 Moscow RUS – Round 15 – Uhlmann, Wolfgang – 1/2-1/2 – Bronstein, David I – G27 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. dxc5 Qxd1+ 7. Kxd1 Bxc5 8. Ke2 Nbd7 9. a3 Nb6 10. Bd3 O-O
1967 Sochi – Round 9 – Spassky, Boris Vasily – 1/2-1/2 – Simagin, Vladimir – G72 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. dxc5 Qxd1+ 7. Kxd1 Bxc5 8. a3 a6 9. b4 Be7 10. Bb2 b5
1968 Hungary – Round 1 – Portisch, Lajos – 1/2-1/2 – Bilek, Istvan – G30 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. dxc5 Qxd1+ 7. Kxd1 Bxc5 8. a3 Be7 9. Ke2 Nbd7 10. Nbd2 Nb6
1968 Rubinstein Memorial – Round 1 – Bilek, Istvan – 1/2-1/2 – Kavalek, Lubomir – G3 1. d4 d5 2. Nf3 Nf6 3. c4 dxc4 4. e3 e6 5. Bxc4 c5 6. dxc5 Qxd1+ 7. Kxd1 Bxc5 8. Ke2 a6 9. Nbd2 O-O 10. Nb3 Be7
1969 Budapest ch-HUN – Round 1 – Bilek, Istvan – 1/2-1/2 – Flesch, Jean-benoit – G20 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. dxc5 Qxd1+ 7. Kxd1 Bxc5 8. Ke2 Nc6 9. a3 Bd7 10. b4 Be7
Erevan ch-URS 1975 – Round 1 – Alburt, Lev – 1/2-1/2 – Petrosian, Tigran V. – G15 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. dxc5 Qxd1+ 7. Kxd1 Bxc5 8. Ke2 Ke7 9. Rd1 Nc6 10. Nc3 a6

D26g — Classical, Early Queenswap (1961)

1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6 5.Bxc4 c5 6.dxc5

Les coups candidats

6…Qxd1+ — 87.9% (131 parties)

Ambassadeurs : Bak, Istvan (6x), Szekely, Peter (5x), Petrosian, Tigran V. (4x), Uhlmann, Wolfgang (4x), Portisch, Lajos (4x), Bronstein, David I (3x), Doroshkievich, Vladimir K (3x), Ivkov, Borislav (3x)

6…Bxc5 — 10.1% (15 parties)

Ambassadeurs : Dlugy, Maxim (2x), Bonin, Jay (2x), Gaw, Chloe (2x), Alburt, Lev (1x), Portisch, Lajos (1x), Garcia Palermo, Carlos Horacio (1x), Gulko, Boris (1x), Donchenko, Anatoly (1x)

6…Qa5+ — 1.3% (2 parties)

Ambassadeurs : Gomez Esteban, Juan Mario (1x), Dorfman, Iossif (1x), Otten, Colleen (1x), De Jong-Muhren, Bianca (1x)

6…Bd7 — 0.7% (1 parties)

Ambassadeurs : Petrosian, Tigran V. (1x), Bronstein, David I (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	6…Qxd1+	6…Bxc5	6…Qa5+	6…Bd7
<1800	5	100%	—	—	—
1800-2200	24	75%	21%	4%	—
2200-2600	98	90%	9%	1%	—
2600+	2	100%	—	—	—

Évolution par décennie (% des parties)

Décennie	N parties	6…Qxd1+	6…Bxc5	6…Qa5+	6…Bd7
1960s	18	94%	—	—	6%
1970s	2	100%	—	—	—
1980s	19	74%	21%	5%	—
1990s	35	94%	6%	—	—
2000s	33	88%	9%	3%	—
2010s	27	89%	11%	—	—
2020s	15	80%	20%	—	—

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
6…Qxd1+	89%	80%	▼ -8.9%
6…Bxc5	11%	20%	▲ +8.9%
6…Qa5+	0%	0%	+0.0%
6…Bd7	0%	0%	+0.0%

Parties historiques

6…Qxd1+ — 87.9% (131 parties)

1961 — Petrosian, Tigran V. vs Tarasov, Vitaly — 1/2-1/2 — Moskou
1961 — Portisch, Lajos vs Bak, Istvan — 1/2-1/2 — Maroczy mem Budapest HUN
1961 — Filip, Miroslav vs Byrne, Robert E — 1/2-1/2 — Santa Fe
1962 — Lengyel, Levente vs Haag, Ervin — 1/2-1/2 — Kecskemet HUN
1962 — Bak, Istvan vs Portisch, Lajos — 1/2-1/2 — Budapest HUN

6…Bxc5 — 10.1% (15 parties)

1982 — Portisch, Lajos vs Garcia Palermo, Carlos Horacio — 1/2-1/2 — Mar del Plata ARG
1985 — Alburt, Lev vs Dlugy, Maxim — 1/2-1/2 — Estes Park ch-USA
1988 — Donchenko, Anatoly vs Shelk, Alexander — 1-0 — Naberezhnie Chelni
1989 — Dlugy, Maxim vs Gulko, Boris — 1/2-1/2 — Long Beach ch-USA
1995 — Przewoznik, Jan vs Twardon, Marian — 1/2-1/2 — Lubniewice Tch-POL

6…Qa5+ — 1.3% (2 parties)

1989 — Gomez Esteban, Juan Mario vs Dorfman, Iossif — 1/2-1/2 — New York, NY USA
2004 — Otten, Colleen vs De Jong-Muhren, Bianca — 0-1 — Leeuwarden NED

6…Bd7 — 0.7% (1 parties)

1961 — Petrosian, Tigran V. vs Bronstein, David I — 1/2-1/2 — Moskou

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