E03j — Catalan: Open, 5.Qa4+ Nbd7 6.Qxc4 a6 7.Nf3 b5 8.Qc6

1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 dxc4 5.Qa4+ Nbd7 6.Qxc4 a6 7.Nf3 b5 8.Qc6 * ● Trait aux Noirs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plans. Bf4 (Fou actif (mobilité 8), Développer c1 — 66 % des parties) ; O-O (Mettre le roi en sécurité, connecter les tours — 16 % des parties) ; Qc2 (Prépare O-O-O — 6 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plans. ...Rb8 (79 % des parties) ; ...Ra7 (21 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● f2→g3, h2→g3	● a6→b5, f7→e6
Passés	—	—
Majorité	—	● aile dame 3v2

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● f4 (2v0), ● e5 (2v1), ● g5 (2v0)	● d5 (2v1)
Cases faibles	—	● c5
Centre	● d4 (1v0), ● e5 (2v1)	● d5 (2v1)

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● c	● d

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Bg2	● Bg2 Ok (mob. 2)
Bc8		● Bc8 Non développé (mob. 1)
Bf8		● Bf8 Non développé (mob. 5)
Paire de fous	● Oui	● Oui
Clouages	—	● knight d7
Non développées	4 (● b1, ● c1, ● a1, ● h1)	4 (● 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	● d4-d5	● …e6-e5

Partie
1936 Nottingham – Round 9 – Capablanca, Jose – 1-0 – Reshevsky, Samuel – G81 1. d4 d5 2. Nf3 Nf6 3. c4 dxc4 4. Qa4+ Nbd7 5. Qxc4 e6 6. g3 a6 7. Bg2 b5 8. Qc6 Ra7 9. Bf4 Bb7 10. Qc1 c5
1942 Duras 60 Memorial – Round 11 – Alekhine, Alexander – 1-0 – Junge, Kai – G48 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 dxc4 5. Qa4+ Nbd7 6. Bg2 a6 7. Qxc4 b5 8. Qc6 Rb8 9. O-O Bb7 10. Qc2 c5
1943 Prague – Round 16 – Thelen, Bedrich – 0-1 – Foltys, Jan – G126 1. d4 d5 2. c4 dxc4 3. Qa4+ Nd7 4. Nf3 Nf6 5. Qxc4 e6 6. g3 a6 7. Bg2 b5 8. Qc6 Rb8 9. O-O Bb7 10. Qc2 c5
1945 Pan American – Round ? – Reshevsky, Samuel – 1-0 – Pilnik, Herman – G61 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. Qa4+ Nbd7 5. Qxc4 e6 6. g3 a6 7. Bg2 b5 8. Qc6 Rb8 9. Bf4 Nd5 10. Bg5 Be7
1946 Treybal Memorial – Round 5 – Sajtar, Jaroslav – 0-1 – Gligorić, Svetozar – G26 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. Qa4+ Nbd7 5. g3 a6 6. Qxc4 e6 7. Bg2 b5 8. Qc6 Ra7 9. O-O Be7 10. Nbd2 Bb7
1948 Bad Gastein – Round 16 – Lokvenc, Josef – 1-0 – Watzl, Leopold – G115 1. c4 e6 2. Nf3 Nf6 3. g3 d5 4. d4 dxc4 5. Qa4+ Nbd7 6. Bg2 a6 7. Qxc4 b5 8. Qc6 Rb8 9. O-O Bb7 10. Qc2 c5
1948 Moskou ch-URS – Round 3 – Alatortsev, Vladimir N. – 1/2-1/2 – Ragozin, Viacheslav – G31 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Nbd7 5. Nf3 dxc4 6. Qa4 a6 7. Qxc4 b5 8. Qc6 Rb8 9. Bf4 Nd5 10. Bg5 Be7
1949 BUL Ch – Round 16 – Kolarov, Atanas Stefanov – 1/2-1/2 – Piskov, Kamen Penev – G77 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Nf3 dxc4 5. Qa4+ Nbd7 6. Qxc4 a6 7. Bg2 b5 8. Qc6 Rb8 9. O-O Bb7 10. Qc2 c5
1953 Candidats Tournament – Round 1 – Szabo, Laszlo – 0-1 – Geller, Efim P – G2 1. c4 Nf6 2. g3 e6 3. Bg2 d5 4. d4 dxc4 5. Qa4+ Nbd7 6. Nf3 a6 7. Qxc4 b5 8. Qc6 Rb8 9. Bf4 Nd5 10. Bg5 Be7
1957 URS Ch, semi final – Round 1 – Lutikov, Anatoly S – 1-0 – Kaminsky, Oleg – G9 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 dxc4 5. Qa4+ Nbd7 6. Qxc4 a6 7. Bg2 b5 8. Qc6 Rb8 9. O-O Bb7 10. Qc2 Be7
1958 Riga Ch – Round 15 – Peterson, Andrejs – 1/2-1/2 – Klasups, Karlis – G28 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Nf3 a6 7. Qxc4 b5 8. Qc6 Rb8 9. O-O Bb7 10. Qc2 c5
1959 AUS Ch – Round 9.6 – Basta Emanuel – 0-1 – Purdy, Cecil J S – G36 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Nf3 dxc4 5. Qa4+ Nbd7 6. Bg2 a6 7. Qxc4 b5 8. Qc6 Rb8 9. Qc2 Bb7 10. O-O c5
1959 HUN Ch 15th – Round 1 – Navarovszky, Laszlo – 1/2-1/2 – Florian, Tibor – G3 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Nf3 a6 7. Qxc4 b5 8. Qc6 Rb8 9. O-O Bb7 10. Qc2 c5
1964 Amsterdam Interzonal – Round 16 – Rossetto, Hector – 1/2-1/2 – Darga, Klaus – G158 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 dxc4 5. Qa4+ Nbd7 6. Bg2 a6 7. Qxc4 b5 8. Qc6 Rb8 9. Bf4 Nd5 10. Bd2 Bb7
1964 Moscow RUS – Round ? – Jakhin, Rashid – 1/2-1/2 – Yudovich, Mikhail M – G41 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. g3 e6 5. Qa4+ Nbd7 6. Qxc4 a6 7. Bg2 b5 8. Qc6 Ra7 9. Bg5 Bb7 10. Qc1 c5
1967 Budapest Bajnogsag 8th – Round 1 – Eperjesi, Laszlo Dr. – 1/2-1/2 – Sapi, Laszlo – G2 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. Qa4+ Nbd7 5. Qxc4 e6 6. g3 a6 7. Bg2 b5 8. Qc6 Rb8 9. Bf4 Nd5 10. Bg5 Be7
1970 Palma de Mallorca Interzonal – Round 3 – Hort, Vlastimil – 1/2-1/2 – Huebner, Robert – G82 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Nf3 Nbd7 5. Bg2 dxc4 6. Qa4 a6 7. Qxc4 b5 8. Qc6 Rb8 9. Qc2 Bb7 10. O-O c5
1971 Moscow – Round ? – Antoshin, Vladimir S – 0-1 – Karpov, Anatoly – G92 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 dxc4 5. Qa4+ Nbd7 6. Bg2 a6 7. Qxc4 b5 8. Qc6 Rb8 9. O-O Bb7 10. Qc2 c5
Amber-blindfold 11th 2002 – Round 11 – Ivanchuk, Vasyl – 1/2-1/2 – Leko, Peter – G30 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Nf3 a6 7. Qxc4 b5 8. Qc6 Rb8 9. Bf4 Nd5 10. Bg5 Be7
Brasilia 1981 – Round 1 – Andersson, Ulf 1949 – 1-0 – Sunye Neto, Jaime – G3 1. c4 Nf6 2. Nf3 e6 3. g3 d5 4. d4 dxc4 5. Qa4+ Nbd7 6. Bg2 a6 7. Qxc4 b5 8. Qc6 Rb8 9. Bf4 Nd5 10. Bg5 Be7
Candidats Tournament 1985 – Round 3 – Smyslov, Vassily – 1/2-1/2 – Tal, Mikhail – G15 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 dxc4 5. Qa4+ Nbd7 6. Bg2 a6 7. Qxc4 b5 8. Qc6 Rb8 9. Bg5 Bb7 10. Qc2 c5
IBM 1978 – Round 2 – Romanishin, Oleg M – 0-1 – Dzindzichashvili, Roman – G6 1. Nf3 d5 2. d4 Nf6 3. c4 e6 4. g3 dxc4 5. Qa4+ Nbd7 6. Qxc4 a6 7. Bg2 b5 8. Qc6 Rb8 9. Bf4 Nd5 10. Bg5 Be7
Torino 1982 – Round 1 – Kavalek, Lubomir – 1/2-1/2 – Ljubojevic, Ljubomir – G2 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 dxc4 5. Qa4+ Nbd7 6. Bg2 a6 7. Qxc4 b5 8. Qc6 Rb8 9. Bf4 Nd5 10. Bg5 Be7
Torino 1982 – Round 3 – Portisch, Lajos – 1/2-1/2 – Huebner, Robert – G9 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Nf3 a6 7. Qxc4 b5 8. Qc6 Rb8 9. Bf4 Nd5 10. Bg5 Be7
Turin 1982 – Round 11 – Kavalek, Lubomir – 1/2-1/2 – Ljubojevic, Ljubomir – G4 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 dxc4 5. Qa4+ Nbd7 6. Bg2 a6 7. Qxc4 b5 8. Qc6 Rb8 9. Bf4 Nd5 10. Bg5 Be7

E03j — Open (1936)

1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 dxc4 5.Qa4+ Nbd7 6.Qxc4 a6 7.Nf3 b5 8.Qc6

Les coups candidats

8…Rb8 — 79.0% (406 parties)

Ambassadeurs : Huebner, Robert (3x), Balog, Imre (3x), El Debs, Felipe de Cresce (3x), Szabo, Laszlo (2x), Geller, Efim P. (2x), Kavalek, Lubomir (2x), Ljubojevic, Ljubomir (2x), Blatny, Pavel (2x)

8…Ra7 — 20.6% (106 parties)

Ambassadeurs : ? (3x), Garcia Martinez, Silvino (2x), Sveshnikov, Evgeny (2x), Kaidanov, Gregory (2x), Rogers, Ian (2x), Mirzoev, Azer (2x), Jakhin, Rashid (1x), Yudovich, Mikhail M (1x)

8…Bb4+ — 0.2% (1 parties)

Ambassadeurs : Pick, Stepan (1x), Vaculik, Martin (1x)

8…Nd5 — 0.2% (1 parties)

Ambassadeurs : Arushi Kotwal (1x), Zhang, Xiao (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	8…Rb8	8…Ra7	8…Bb4+	8…Nd5
<1800	15	67%	33%	—	—
1800-2200	112	80%	18%	1%	1%
2200-2600	334	78%	22%	—	—
2600+	9	100%	—	—	—

Évolution par décennie (% des parties)

Décennie	N parties	8…Rb8	8…Ra7	8…Bb4+	8…Nd5
1950s	8	88%	12%	—	—
1960s	7	71%	29%	—	—
1970s	11	64%	36%	—	—
1980s	24	79%	21%	—	—
1990s	74	84%	16%	—	—
2000s	119	86%	13%	1%	—
2010s	167	78%	21%	—	1%
2020s	104	70%	30%	—	—

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
8…Rb8	78%	70%	▼ -8.3%
8…Ra7	21%	30%	▲ +8.8%
8…Bb4+	0%	0%	+0.0%
8…Nd5	1%	0%	▼ -0.6%

Joueurs célèbres

Champions du monde dans cette position

Karpov, Anatoly — 1 partie
Tal, Mikhail — 1 partie
Smyslov, Vladimir — 1 partie
Botvinnik, Mikhail — 1 partie

Parties historiques

8…Rb8 — 79.0% (406 parties)

1952 — Grivainis, Konstantin vs Dreibergs, Leonid — 1/2-1/2 — Latvian Exiles 5254
1953 — Szabo, Laszlo vs Geller, Efim P. — 0-1 — Zurich SUI
1953 — Szabo, Laszlo vs Geller, Efim P. — 0-1 — Zurich SUI
1957 — Lutikov, Anatoly S vs Kaminsky, Oleg — 1-0 — Sverdlovsk
1958 — Peterson, Andrejs vs Klasups, Karlis — 1/2-1/2 — Riga LAT

8…Ra7 — 20.6% (106 parties)

1952 — Vaitonis, Povilas vs Anderson, Frank Ross — 1/2-1/2 — Toronto CAN
1964 — Jakhin, Rashid vs Yudovich, Mikhail M — 1/2-1/2 — ?
1969 — Toran Albero, Roman vs Petrosian, Tigran V. — 0-1 — It Palma de Majorca ESP
1970 — Udovcic, Mijo vs Kovacevic, Vlatko — 0-1 — Rovinj/Zagreb CRO
1974 — Garcia Martinez, Silvino vs Sveshnikov, Evgeny — 1-0 — It

8…Bb4+ — 0.2% (1 parties)

2000 — Pick, Stepan vs Vaculik, Martin — 1-0 — Czechia

8…Nd5 — 0.2% (1 parties)

2019 — Arushi Kotwal vs Zhang, Xiao — 1/2-1/2 — Mumbai IND