E06h — Catalan: Closed, 6.O-O c6 7.b3

1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 Be7 5.Nf3 O-O 6.O-O c6 7.b3 * ● Trait aux Noirs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Avantages : case forte d4, case forte f4, case forte e5, case forte g5, paire de fous.
Faiblesses adverses : Bc8 enfermé.
Problèmes : Bc1 enfermé, Bg2 enfermé, 3 pièces non développées (B1, C1, A1).
Plans :
● Nc3 — Développer Nb1
● Bg5 — Clouer Nf6
● h3 — Empêcher ...Bg4

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Avantages : case forte e4, Be7 actif, paire de fous.
Faiblesses adverses : Bc1 enfermé, Bg2 enfermé.
Problèmes : Bc8 enfermé, 3 pièces non développées (B8, C8, A8).
Plans :
● ...Bd7 — PRIORITÉ: libérer le Bc8 (...Bd7, b6+Bb7, ...Bg4, ...Bf5)
● ...Nbd7 — Développer Nb8
● ...Bg4 — Clouer Nf3
● ...c5 — Rupture
● ...e5 — Rupture

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

E06h — Closed

1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 Be7 5.Nf3 O-O 6.O-O c6 7.b3

Eval: [+0.29]

Les coups candidats

7…Nbd7 — 54.5% (774 parties) →

Ambassadeurs : Kostiukova, Liubov (4x), Ragozin, Viacheslav (3x), Amigo Roman, Pedro (3x), Ernst, Sipke (3x), Filip, Marius Liviu (2x), Nikitin, Aleksander S (2x), Sliwa, Bogdan (2x), Korchnoi, Viktor (2x)

7…b6 — 32.4% (460 parties)

Ambassadeurs : Radulov, Ivan (3x), Petrosian, Tigran V. (2x), O'Kelly de Galway, Alberic (2x), Romsdal, Trond (2x), Smirnov, Pavel (2x), Sai Agni Jeevitesh, J (2x), Cheparinov, Ivan (2x), Suleyev, Alen (2x)

7…Ne4 — 5.0% (71 parties)

Ambassadeurs : Weyerstrass, Ronald (1x), Enklaar, Bert (1x), CXG Dominator 2 04 (1x), Schafforth, P. (1x), Dehen, Lothar (1x), Kemna, Guido (1x), Malek Zbigniew (1x), Koszorus, Pal (1x)

7…a5 — 3.2% (46 parties)

Ambassadeurs : De Coverly, Roger D (1x), Elwell, R. (1x), Kalinin, Vladimir A. (1x), Ferreira Rui (1x), Montoya Bello, Felix J (1x), Mancebo Ibanez, Fernando (1x), Van Tilbury, Craig (1x), Mifsud, Timothy (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	7…Nbd7	7…b6	7…Ne4	7…a5
<1800	36	75%	8%	3%	—
1800-2200	575	57%	27%	7%	2%
2200-2600	547	46%	44%	3%	5%
2600+	24	25%	67%	—	8%

Évolution par décennie (% des parties)

Décennie	N parties	7…Nbd7	7…b6	7…Ne4	7…a5
1930s	3	67%	33%	—	—
1940s	4	50%	25%	—	—
1950s	29	62%	28%	—	—
1960s	36	67%	25%	—	—
1970s	38	71%	18%	3%	3%
1980s	62	58%	32%	5%	2%
1990s	219	57%	30%	6%	2%
2000s	324	62%	23%	5%	2%
2010s	482	56%	30%	7%	3%
2020s	224	30%	58%	2%	8%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
7…Nbd7	56%	30%	▼ -26.1%
7…b6	30%	58%	▲ +27.7%
7…Ne4	7%	2%	▼ -5.1%
7…a5	3%	8%	▲ +4.7%

Joueurs célèbres

Champions du monde dans cette position

Tal, Mikhail — 4 parties
Ju, Wenjun — 2 parties
Smyslov, Vladimir — 1 partie
Carlsen, Magnus — 1 partie

Parties historiques

7…Nbd7 — 54.5% (774 parties)

1935 — Carls, Carl vs Larsson, Ernst — 0-1 — Sopot
1938 — Kranki, Hans vs Nowarra, Heinz — 0-1 — Bad Oeynhausen GER
1948 — Keres Paul Petrovich vs Ragozin, Viacheslav — 1-0 — Moskou ch-URS
1948 — Keres, Paul vs Ragozin, Viacheslav — 0-1 — Moscow RUS
1950 — Tsvetkov, Alexandar K vs Popov, Vesselin — 1/2-1/2 — Sofia BUL

7…b6 — 32.4% (460 parties)

1939 — Kmoch, Hans vs Kramer, Haije — 1-0 — Leeuwarden NED
1948 — Hofmann, EJ vs Schwammenhofer, Alan — 0-1 — Vienna AUT
1951 — Tsvetkov, Alexandar K vs Sajtar, Jaroslav — 1/2-1/2 — Marianske Lazne zt
1953 — Pakulla vs Keller-Hermann, Edith — 1/2-1/2 — Jena GER
1955 — Glotov, Vladimir Georgievich vs Sokolsky, Alexey — 0-1 — Kiev UKR

7…Ne4 — 5.0% (71 parties)

1976 — Malek Zbigniew vs Koszorus, Pal — 1/2-1/2 — Vitrobud op Sandomierz
1984 — Weyerstrass, Ronald vs Enklaar, Bert — 0-1 — Beker SGS-HSG
1988 — Dehen, Lothar vs Kemna, Guido — 0-1 — GER
1989 — CXG Dominator 2 04 vs Schafforth, P. — 0-1 — Cologne GER
1990 — Bode, Wilfried vs Bwalya Frank — 1-0 — Wiesbaden GER

7…a5 — 3.2% (46 parties)

1970 — De Coverly, Roger D vs Elwell, R. — 1/2-1/2 — Whitby
1988 — Kalinin, Vladimir A. vs Ferreira Rui — 1-0 — Thessaloniki GRE
1994 — Van Tilbury, Craig vs Mifsud, Timothy — 1-0 — Moskou olm
1996 — Montoya Bello, Felix J vs Mancebo Ibanez, Fernando — 1/2-1/2 — Cullera
1996 — Horvath, Mario vs Szaraz, Vojtech — 1-0 — Slovakia

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● a2→b3, f2→g3, h2→g3, b3→c4	● c6→d5, e6→d5, b7→c6, f7→e6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● d4 (2v0), ● f4 (2v0), ● e5 (2v0), ● g5 (2v0)	● e4 (2v0)
Cases faibles	—	—
Centre	● d4 (2v0), ● e5 (2v0)	● d5 (4v1), ● e4 (2v0)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 7)
Bg2	● Bg2 Enfermé (mob. 2)
Be7		● Be7 Actif (mob. 4)
Bc8		● Bc8 Non développé (mob. 1)
Paire de fous	● Oui	● Oui
Non développées	3 (b1, c1, a1)	3 (b8, c8, a8)

Sécurité du roi

	♔ Blancs	♚ Noirs
Statut	● Roqué	● Roqué
Droits de roque	—	—

Thèmes

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

Partie
1951 Marianske Lazne zt – Round 1 – Tsvetkov, Alexandar K – 1/2-1/2 – Sajtar, Jaroslav – G26 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. Nf3 O-O 6. O-O c6 7. b3 b6 8. Bb2 Nbd7 9. Nc3 Bb7 10. Nd2 c5
1953 DDR Ch 04th – Round 3 – Pakulla – 1/2-1/2 – Keller-Hermann, Edith – G3 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. Nf3 O-O 6. O-O c6 7. b3 b6 8. Nc3 Bb7 9. cxd5 Nxd5 10. Nxd5 cxd5
1956 Budapest Alekhine – Round 1 – Benko, Pal – 1-0 – Szily, Jozsef – G53 1. Nf3 Nf6 2. g3 d5 3. Bg2 e6 4. O-O Be7 5. d4 O-O 6. c4 c6 7. b3 b5 8. Ba3 Bxa3 9. Nxa3 Qa5 10. Qc1 Nbd7
1956 Moscow olm prel – Round 6 – Szabo, Ladislav – 1/2-1/2 – O'Kelly de Galway, Alberic – G177 1. c4 Nf6 2. d4 e6 3. g3 d5 4. Bg2 Be7 5. Nf3 O-O 6. O-O c6 7. b3 b6 8. Bb2 Bb7 9. Nc3 Nbd7 10. Nd2 Qb8
1957 WchT U26 04th – Round 7.1 – Filip, Miroslav – 1-0 – Tumurbator, Purev – G84 1. c4 e6 2. g3 Nf6 3. Bg2 d5 4. Nf3 Be7 5. O-O O-O 6. d4 c6 7. b3 dxc4 8. bxc4 c5 9. Nc3 cxd4 10. Nxd4 e5
1958 Riga ch-URS – Round 14 – Taimanov, Mark E – 1/2-1/2 – Polugaevsky, Lev – G117 1. c4 e6 2. g3 d5 3. Bg2 Nf6 4. Nf3 Be7 5. O-O O-O 6. d4 c6 7. b3 b6 8. Bb2 Nbd7 9. Nc3 Bb7 10. Qc2 c5
1959 Alekhine Memorial – Round 11 – Filip, Marius Liviu – 1/2-1/2 – Milev, Zdravko – G58 1. c4 Nf6 2. g3 e6 3. Bg2 d5 4. Nf3 Be7 5. O-O O-O 6. d4 c6 7. b3 b6 8. Bb2 Bb7 9. Nbd2 Nbd7 10. Rc1 Rc8
1959 Krakow – Round 11 – Kozma, Julius – 1/2-1/2 – Kostro, Jerzy – G40 1. Nf3 Nf6 2. g3 d5 3. Bg2 e6 4. O-O Be7 5. c4 O-O 6. d4 c6 7. b3 b6 8. Bb2 Bb7 9. e3 Nbd7 10. Qe2 Rc8
1960 Ljubljana – Round 6 – Bulat, Ante – 1-0 – Knezevic, Milorad – G54 1. Nf3 d5 2. g3 Nf6 3. Bg2 e6 4. d4 Be7 5. O-O O-O 6. c4 c6 7. b3 b5 8. Bf4 a5 9. Nbd2 a4 10. cxb5 cxb5
1961 WchT U26 08th – Round 12.1 – Zinn, Lothar – 1-0 – Radulov, Ivan – G110 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Be7 5. Bg2 O-O 6. O-O c6 7. b3 b6 8. Bb2 Bb7 9. Nbd2 c5 10. cxd5 exd5
1962 Olympiad, Varna BUL – Round 1 – Kolvig, Bent – 1/2-1/2 – Jimenez Zerquera, Eleazar – G2 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 c6 5. Nf3 Be7 6. O-O O-O 7. b3 b6 8. Nc3 Nbd7 9. Bb2 Bb7 10. Qc2 Qc7
1966 World Championship 26th – Round 4 – Petrosian, Tigran V – 1/2-1/2 – Spassky, Boris V. – G4 1. c4 e6 2. g3 d5 3. Bg2 Nf6 4. Nf3 Be7 5. O-O O-O 6. d4 c6 7. b3 b6 8. Bb2 Bb7 9. Nc3 Nbd7 10. Qc2 Rc8
1967 Hoogovens-B – Round ? – Ujtelky, Maximilian – 0-1 – Keller, Daniel – G33 1. c4 Nf6 2. g3 e6 3. Bg2 d5 4. Nf3 Be7 5. O-O O-O 6. d4 c6 7. b3 b6 8. Bb2 Ba6 9. Ne5 Nfd7 10. Qc2 Nxe5
1968 Lugano SUI – Round 1 – Rossetto, Hector Decio – 1-0 – Radulov, Ivan – G47 1. d4 Nf6 2. Nf3 d5 3. g3 e6 4. Bg2 Be7 5. c4 c6 6. b3 O-O 7. O-O b6 8. Bb2 Nbd7 9. Qc2 Ba6 10. Nbd2 Rc8
1969 Buesum – Round 13 – Ivkov, Borislav – 1/2-1/2 – Bobotsov, Milko G – G36 1. c4 Nf6 2. Nf3 e6 3. g3 d5 4. Bg2 Be7 5. O-O O-O 6. d4 c6 7. b3 b6 8. Bb2 Bb7 9. Nc3 Nbd7 10. Qc2 Rc8
1969 Raach zt – Round 21 – Zwaig, Arne – 1/2-1/2 – Radulov, Ivan – G180 1. g3 d5 2. Bg2 Nf6 3. Nf3 e6 4. O-O Be7 5. d4 O-O 6. c4 c6 7. b3 b6 8. Bb2 Nbd7 9. Qc2 Ba6 10. Rd1 Rc8
43. Olympiad 2018 – Round 4.14 – Iturrizaga Bonelli, Eduardo – 1/2-1/2 – Leitao, Rafael – G242 1. c4 Nf6 2. g3 e6 3. Bg2 d5 4. d4 Be7 5. Nf3 O-O 6. O-O c6 7. b3 b6 8. Bb2 Nbd7 9. Nc3 Ba6 10. Nd2 b5
Alekhine Memorial 1971 – Round 1 – Petrosian, Tigran V – 1/2-1/2 – Tal, Mikhail – G6 1. c4 Nf6 2. Nf3 e6 3. g3 d5 4. Bg2 Be7 5. O-O O-O 6. d4 c6 7. b3 b6 8. Bb2 Nbd7 9. Nbd2 Bb7 10. e3 dxc4
World Blitz 2022 – Round 6.5 – Cheparinov, Ivan – 1/2-1/2 – Duda, Jacob – G322 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 Be7 5. Bg2 O-O 6. O-O c6 7. b3 b6 8. Bb2 Bb7 9. Nc3 Nbd7 10. Rc1 c5
World Cup 1988 – Round 1 – Ribli, Zoltan – 1/2-1/2 – Hjartarson, Johann – G73 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. d4 O-O 6. O-O c6 7. b3 b6 8. Bb2 Bb7 9. Nc3 Na6 10. Rc1 Rc8

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