B70o — Sicilian: Dragon, 6.Be2 Bg7 7.O-O O-O

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be2 Bg7 7.O-O O-O * ○ Trait aux Blancs

Ouverture — Centre semi-ouvert

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Avantages : majorité aile_dame (3v2), case forte b5, case forte d5, Be2 actif, paire de fous, colonne d.
Faiblesses adverses : Bg7 enfermé, Bc8 enfermé.
Problèmes : Bc1 enfermé.
Plans :
● Bg5 — Clouer Nf6
● Rd — Tour sur colonne d

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Avantages : majorité centre (2v1), case forte g4, paire de fous, colonne c.
Faiblesses adverses : Bc1 enfermé.
Problèmes : Bg7 enfermé, Bc8 enfermé, 3 pièces non développées (B8, C8, A8).
Plans :
● ...Nbd7 — Développer Nb8
● ...Bf5 — Développer Bc8
● ...d5 — Rupture
● ...e6 — Rupture
● ...e5 — Rupture

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

B70o — Dragon

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be2 Bg7 7.O-O O-O

Eval: [+0.20]

Les coups candidats

8.Be3 — 38.6% (2277 parties) →

Ambassadeurs : Unzicker, Wolfgang (15x), Kindermann, Stefan (9x), Nijboer, Friso (9x), Cladouras, Panagiotis (7x), Farago, Sandor (7x), Koskela, Niina (7x), Eliskases, Erich (5x), Miles, Anthony J (5x)

8.Bg5 — 22.9% (1354 parties) →

Ambassadeurs : ? (15x), Tischbierek, Raj (8x), Vogt, Lothar (8x), Salov, Sergej (7x), Zapata, Alonso (7x), Kruszynski, Wlodzimierz (6x), Aldama Degurnay, Dionisio (6x), Gufeld, Eduard (5x)

8.Re1 — 14.6% (859 parties) →

Ambassadeurs : Bochnickova, Andrea (7x), Meister, Jakob (6x), Farago, Sandor (5x), Balinov, Ilia (5x), Gashimov, Vugar (5x), Alcazar Jimenez, Jesus Alberto (5x), Paddock, Silvia, Dr. (4x), Ward, Chris G (4x)

8.Nb3 — 12.0% (709 parties)

Ambassadeurs : Fishbein, Alexander (10x), Krivec, Jana (9x), Lnenickova, Gabriela (8x), Sziva, Erika (7x), Schmaltz, Roland (6x), Gipslis, Aivars (5x), Hakki, Imad (5x), Jalabadze, Natia (5x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	8.Be3	8.Bg5	8.Re1	8.Nb3
<1800	193	55%	15%	8%	6%
1800-2200	1893	45%	22%	12%	9%
2200-2600	2290	25%	28%	22%	15%
2600+	51	37%	18%	35%	6%

Évolution par décennie (% des parties)

Décennie	N parties	8.Be3	8.Bg5	8.Re1	8.Nb3
1910s	1	100%	—	—	—
1920s	3	100%	—	—	—
1930s	37	59%	5%	—	19%
1940s	79	62%	3%	—	23%
1950s	79	77%	—	—	16%
1960s	42	62%	5%	—	17%
1970s	93	40%	33%	1%	16%
1980s	441	31%	30%	0%	18%
1990s	1518	34%	25%	12%	15%
2000s	1822	38%	23%	16%	12%
2010s	1575	42%	22%	20%	7%
2020s	211	42%	18%	27%	5%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
8.Be3	42%	42%	▲ +0.6%
8.Bg5	22%	18%	▼ -4.8%
8.Re1	20%	27%	▲ +7.0%
8.Nb3	7%	5%	▼ -1.3%

Joueurs célèbres

Champions du monde dans cette position

Euwe, Max — 6 parties
Kramnik, Vladimir — 4 parties
Karpov, Anatoly — 2 parties
Anand, Viswanathan — 2 parties
Karpov, Aleksandr — 1 partie
Kasparov, Garry — 1 partie
Hou, Yifan — 1 partie
Carlsen, Magnus — 1 partie

Parties historiques

8.Be3 — 38.6% (2277 parties)

1918 — Mlotkowski, Stasch vs Gruer, EW. — 1/2-1/2 — Los Angeles, CA USA
1922 — Yates, Frederic D vs Watson, Charles — 1/2-1/2 — London ENG
1922 — Yates, Frederic D vs Guillen Watson, Cesar Augusto — 1/2-1/2 — London ENG
1928 — Flohr, Salo vs Machate — 1-0 — Mahr.Schonberg
1932 — Tarrasch, Siegbert vs Zeuner, Friedrich — 1-0 — Munich GER

8.Bg5 — 22.9% (1354 parties)

1937 — Rabinovich, Ilya Mar vs Kan, Ilya A — 1-0 — Tbilisi ch-URS
1938 — Rabinovich, Ilya Mar vs David, Michael — 1-0 — Leningrad RUS
1946 — Bonch-Osmolovsky, Mikhail vs Simagin, Vladimir — 1/2-1/2 — Moscow RUS
1947 — Bidev, Pavle vs Erdelyi, Stefan — 0-1 — Sofia BUL
1960 — Benko, Pal vs Wexler, Bernardo — 1/2-1/2 — Buenos Aires ARG

8.Re1 — 14.6% (859 parties)

1972 — Basman, Michael J vs Cooper, NS. — 1-0 — Barnstaple
1989 — Nykopp, Michael vs Jauhiainen, Kari — 1/2-1/2 — Kuopio Kalakukko
1989 — Nykopp, Jan-Michael F. vs Kauppinen, Martti — 1/2-1/2 — ?
1990 — Ermenkov, Evgenij vs West, Guy — 1-0 — Novi Sad SRB
1990 — Vinter-Schou, Uffe vs Borge, Nikolaj — 1/2-1/2 — Aarhus DEN

8.Nb3 — 12.0% (709 parties)

1936 — Israel, Harold vs Parr, Frank — 0-1 — Bournemouth
1937 — Foltys, Jan vs Asgeirsson, Asmundur — 1/2-1/2 — Stockholm SWE
1939 — Cortlever, Nico vs Fontein, J. — 0-1 — Amsterdam NED
1939 — Montoya Eisinger, Maximiliano vs Gilg, Karl — 1/2-1/2 — Bad Oeynhausen ch-GER
1939 — Euwe, Max vs Landau, Salo — 1-0 — Amsterdam m ch-NED

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	—	● e7→d6, f7→g6, h7→g6
Passés	—	—
Majorité	● aile_dame 3v2	● centre 2v1

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● b5 (3v0), ● d5 (2v1)	● g4 (2v1)
Cases faibles	—	—
Centre	● d4 (1v0), ● d5 (2v1)	● e5 (1v0)

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● d	● c

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Be2	● Be2 Actif (mob. 7)
Bg7		● Bg7 Enfermé (mob. 2)
Bc8		● Bc8 Non développé (mob. 5)
Paire de fous	● Oui	● Oui
Non développées	2 (c1, a1)	3 (b8, c8, a8)

Sécurité du roi

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

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	semi-ouvert
Ruptures	● e4-e5, ● f2-f3	● …d6-d5, ● …e7-e6, ● …e7-e5

Partie
1939 Amsterdam m ch-NED – Round 10 – Euwe, Max – 1/2-1/2 – Landau, Salo – G10 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. O-O O-O 8. f3 Qb6 9. Kh1 Nxe4 10. Nd5 Qxd4
1939 Buenos Aires ol prel-A – Round 3 – Diaz Perez, Jaime – 0-1 – Trompowsky, Octavio – G10 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. O-O O-O 8. Kh1 Nc6 9. Nb3 Be6 10. f4 Rc8
1939 Margate Premier Reserves A – Round 4 – Kitto, Francis E A – 0-1 – Landau, Salo – G6 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. O-O O-O 8. Kh1 Nc6 9. Nb3 Be6 10. f4 Na5
1940 Ventnor City – Round 1 – Seidman, Herbert – 0-1 – Donovan, Jeremiah – G3 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. O-O O-O 8. Kh1 Nc6 9. Nb3 Be6 10. f4 Na5
1941 New York – Round 1 – Platz, Joseph – 1-0 – Moskowitz, Jack – G14 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. O-O O-O 8. f4 Nc6 9. Nb3 a5 10. a4 Qb6+
1943 Mar del Plata – Round 5 – Liebstein, Arturo – 0-1 – Pelikan, Jan – G41 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. O-O O-O 8. Kh1 a6 9. f4 Qc7 10. Be3 b5
1944 45. US Open – Round 12 – Ward Mayhew Parker Mitchell – 0-1 – Reshevsky, Samuel – G7 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. O-O O-O 8. h3 Nc6 9. Be3 Bd7 10. Qd2 Nxd4
1944 La Plata Jockey Club – Round 4 – Rebizzo, Cayetano – 0-1 – Pelikan, Jorge – G19 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. O-O O-O 8. Nb3 a6 9. f4 Nbd7 10. g4 b5
1945 Mar del Plata it-8 – Round 6 – Bolbochan, J. – 1/2-1/2 – Rossetto, Hector – G13 1. e4 c5 2. Nf3 d6 3. Nc3 Nf6 4. d4 cxd4 5. Nxd4 g6 6. Be2 Bg7 7. O-O O-O 8. Nb3 Be6 9. Be3 a6 10. f4 Qc7
1946 JUG Ch – Round 1 – Kindij Igor – 1/2-1/2 – Rabar, Braslav – G4 1. e4 c5 2. Nf3 d6 3. d4 Nf6 4. Nc3 cxd4 5. Nxd4 g6 6. Be2 Bg7 7. O-O O-O 8. Nb3 Be6 9. f4 Qc8 10. Be3 Bc4
1946 Stockholm SWE – Round ? – Skold, Kristian – 1-0 – Nilsson, Zandor – G15 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. O-O O-O 8. Kh1 Nc6 9. Nb3 Be6 10. f4 Qc8
1947 Aalborg – Round 9 – Herseth, Storm – 1-0 – Wood, Baruch – G29 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. O-O O-O 8. Kh1 Nc6 9. Nb3 Be6 10. f4 Na5
1948 South Fallsburg ch-USA – Round 1 – Shipman, Walter – 1/2-1/2 – Ulvestad, Olaf – G55 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. O-O O-O 8. Nb3 Nbd7 9. f4 b6 10. Bf3 Ba6
1949 AUT-CSR Vienna AUT – Round 1 – Kopetzky, Karl – 1/2-1/2 – Filip, Miroslav – G3 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. O-O O-O 8. Kh1 d5 9. exd5 Nxd5 10. Nxd5 Qxd5
1951 New York ch-USA – Round 5 – Pinkus, Albert – 1/2-1/2 – Reshevsky, Samuel – G20 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. O-O O-O 8. Kh1 Nc6 9. Nb3 Be6 10. f4 Qc8
1951 Vienna 5152 – Round 3 – Matanovic, Aleksandar – 1-0 – Castaldi, Vincenzo – G10 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. O-O O-O 8. Nb3 Be6 9. f4 b5 10. Bf3 Qb6+
1951 Zonal – Round 15 – De Moura, Joao Guilherme – 1-0 – Grob, Henry – G36 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. O-O O-O 8. Nb3 a6 9. Be3 Bd7 10. f4 Bc6
1953 Kbenhavnsmesterskabet – Round 9 – Jacobsen, Arenth – 0-1 – Nielsen, Hartvig – G15 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. O-O O-O 8. f4 Nc6 9. Nb3 Be6 10. Kh1 Qc8
1962 Stockholm int. turneringen – Round 6 – Olsson, Ake – 1/2-1/2 – Nilsson, Zandor – G9 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. O-O O-O 8. Kh1 Nc6 9. Nb3 Be6 10. f4 Qc8
Hoogovens 1985 – Round 9 – Nunn, John D M – 1-0 – Kudrin, Sergey – G30 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. O-O O-O 8. Kh1 Nc6 9. Nb3 a6 10. f4 b5
Luzern olm 1982 – Round 10 – Timman, Jan H – 0-1 – Miles, Anthony J – G47 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. O-O O-O 8. Nb3 Nbd7 9. Bg5 a6 10. a4 b6

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