B09g — Pirc: Austrian, 5…O-O 6.Be3

1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.f4 Bg7 5.Nf3 O-O 6.Be3 * ● Trait aux Noirs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

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Plans. Qd2 (Prépare O-O-O — 32 % des parties) ; Bd3 (Fou actif (mobilité 5), Développer f1 — 17 % des parties) ; e5 (Occuper le centre — 14 % des parties) ; Be2 (Fou actif (mobilité 5), Développer f1 — 7 % des parties) ; Bg1 (6 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

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Plans. ...b6 (Préparer le fianchetto — 31 % des parties) ; ...c6 (Renforcer le centre — 18 % des parties) ; ...Nbd7 (Développer b8 — 13 % des parties) ; ...c5 (Frapper le centre adverse — 10 % des parties) ; ...Nc6 (Développer b8 — 8 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	—	● c7→d6, e7→d6, f7→g6, h7→g6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● b5 (2v0), ● d5 (2v1), ● g5 (2v0)	● g4 (2v0)
Cases faibles	—	—
Centre	● d4 (3v0), ● d5 (2v1), ● e5 (3v1)	—

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bf1	● Bf1 Non développé (mob. 5)
Be3	● Be3 Actif (mob. 4)
Bg7		● Bg7 Ok (mob. 2)
Bc8		● Bc8 Non développé (mob. 5)
Paire de fous	● Oui	● Oui
Non développées	3 (● f1, ● a1, ● h1)	3 (● b8, ● c8, ● a8)

Sécurité du roi

	♔ Blancs	♚ Noirs
Statut	● Au centre	● Roqué
Droits de roque	O-O / O-O-O	—

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	mobile
Ruptures	● e4-e5, ● f4-f5	● …c7-c5, ● …d6-d5, ● …e7-e5

Partie
1934 BRA-ch6 m – Round 7 – Rocas, Orlando – 1-0 – De Souza Mendes, Joao – G7 1. e4 Nf6 2. Nc3 d6 3. d4 g6 4. f4 Bg7 5. Nf3 O-O 6. Be3 Nbd7 7. e5 Ng4 8. Qd2 c5 9. exd6 Nxe3 10. Qxe3 exd6
1951 GER Ch 14th – Round 8 – Eisinger Max – 1-0 – Lange, Wilfried – G24 1. e4 d6 2. f4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. d4 O-O 6. Be3 Nbd7 7. Qd2 e5 8. fxe5 dxe5 9. O-O-O Ng4 10. Bg5 f6
1954 URS Team Ch – Round 11 – Rovner, Dmitry – 0-1 – Shcherbakov, Vitaly – G208 1. e4 g6 2. d4 Bg7 3. f4 d6 4. Nf3 Nf6 5. Nc3 O-O 6. Be3 c5 7. Qd2 cxd4 8. Nxd4 Nc6 9. Be2 d5 10. e5 Ng4
1961 Baku ch-URS – Round 21 – Lein, Anatoly – 0-1 – Savon, Vladimir – G197 1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. f4 Nf6 5. Nf3 O-O 6. Be3 c6 7. Qd2 Nbd7 8. e5 Ng4 9. Bg1 c5 10. exd6 cxd4
1962 Athens simul 1 – Round 1.7 – O'Kelly de Galway, Alberic – 1-0 – Hronakis, E – G22 1. f4 d6 2. Nf3 g6 3. e4 Bg7 4. d4 Nf6 5. Nc3 O-O 6. Be3 a6 7. Be2 Nbd7 8. O-O c6 9. Kh1 Qc7 10. Qe1 b5
1964 Tel Aviv olm prel – Round 2 – Durão, Joaquim Manuel – 1-0 – Zwaig, Arne – G67 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 O-O 6. Be3 c6 7. a4 Qa5 8. Bd3 Na6 9. O-O Nb4 10. Be2 d5
1967 DDR Ch 16th – Round 6 – Hennings, Artur – 1-0 – Kollberg, Lothar – G30 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 O-O 6. Be3 Nbd7 7. Bd3 c5 8. h3 cxd4 9. Nxd4 Nc5 10. O-O e5
1967 USSR – Round 1 – Lein, Andreas – 0-1 – Gufeld, Eduard – G38 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 O-O 6. Be3 Nc6 7. Qd2 Bg4 8. d5 Nb8 9. h3 Bxf3 10. gxf3 c6
1972 Skopje ol (Men) fin-A – Round 5 – Radulov, Ivan – 1-0 – Timman, Jan H – G293 1. e4 d6 2. d4 g6 3. Nc3 Bg7 4. f4 Nf6 5. Nf3 O-O 6. Be3 c5 7. dxc5 Qa5 8. Qd2 dxc5 9. Bd3 Rd8 10. e5 c4
42. Olympiad 2016 – Round 3.19 – Neiksans, Arturs – 1/2-1/2 – Hillarp Persson, Tiger – G196 1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. f4 Nf6 5. Nf3 O-O 6. Be3 b6 7. Qd2 c5 8. e5 Ng4 9. O-O-O dxe5 10. Nxe5 cxd4
Amber Blindfold 2005 – Round 8 – Kramnik, Vladimir – 0-1 – Morozevich, Alexander – G36 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 O-O 6. Be3 c6 7. Bd3 Na6 8. a3 c5 9. d5 Rb8 10. Qe2 Nc7
FIDE World Cup 2017 – Round 1.1 – Inarkiev, Ernesto – 1-0 – Mchedlishvili, Mikheil – G41 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 O-O 6. Be3 b6 7. e5 Ng4 8. Bg1 c5 9. Qe2 cxd4 10. Bxd4 Nc6
FIDE-Wch k.o. g/25+10 1999 – Round 2.3 – Nisipeanu, Liviu-Dieter – 1/2-1/2 – Azmaiparashvili, Zurab – G14 1. e4 d6 2. d4 g6 3. Nc3 Bg7 4. f4 Nf6 5. Nf3 O-O 6. Be3 Nbd7 7. e5 Ng4 8. Bg1 c5 9. e6 fxe6 10. Ng5 Ndf6
IBM 1978 – Round 10 – Hort, Vlastimil – 1/2-1/2 – Pfleger, Helmut, Dr. – G28 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 O-O 6. Be3 c5 7. dxc5 Qa5 8. Bd3 Ng4 9. Bd2 Qxc5 10. Qe2 Nf6
Interpolis 1986 – Round 7 – Beliavsky, Alexander G – 1-0 – Timman, Jan H – G20 1. d4 d6 2. e4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 O-O 6. Be3 c5 7. dxc5 Qa5 8. Qd2 dxc5 9. Nb5 Qa4 10. e5 Ne4
Linares 1981 – Round 1 – Karpov, Anatoly – 1-0 – Christiansen , Luis – G19 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 O-O 6. Be3 Nc6 7. Qd2 e5 8. dxe5 dxe5 9. Qxd8 Rxd8 10. fxe5 Ng4
Moscow Interzonal 1982 – Round 8 – Beliavsky, Alexander G – 1-0 – Christiansen, Larry – G29 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 O-O 6. Be3 c6 7. Bd3 Nbd7 8. h3 e5 9. dxe5 dxe5 10. fxe5 Ne8
Moscow-4teams 1981 – Round 4.7 – Balashov, Yuri S – 1/2-1/2 – Gufeld, Eduard – G24 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 O-O 6. Be3 b6 7. e5 dxe5 8. dxe5 Ng4 9. Bg1 Bb7 10. Bd3 Na6
Riga Interzonal 1979 – Round 11 – Tal, Mikhail – 1-0 – Mednis, Edmar J – G28 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 O-O 6. Be3 c5 7. dxc5 Qa5 8. Bd3 Ng4 9. Bd2 Qxc5 10. Qe2 Nf6
WCh-FIDE 2005 – Round 2 – Kasimdzhanov, Rustam – 1/2-1/2 – Svidler, Peter – G4 1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. f4 Nf6 5. Nf3 O-O 6. Be3 b6 7. Qd2 Bb7 8. e5 Ng4 9. O-O-O c5 10. dxc5 bxc5
World Cup 1988 – Round 1 – Beliavsky, Alexander G – 1/2-1/2 – Speelman, Jon S – G23 1. d4 d6 2. e4 g6 3. Nc3 Bg7 4. f4 Nf6 5. Nf3 O-O 6. Be3 c5 7. dxc5 Qa5 8. Bd3 dxc5 9. e5 Nd5 10. Bd2 Nxc3
World Cup 1988 – Round 1 – Beliavsky, Alexander G – 1/2-1/2 – Timman, Jan H – G69 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 O-O 6. Be3 Nbd7 7. Qd2 c5 8. O-O-O cxd4 9. Bxd4 Bh6 10. h3 Nh5

B09g — Kurajica Variation (1934)

1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.f4 Bg7 5.Nf3 O-O 6.Be3

Les coups candidats

6…b6 — 30.7% (750 parties)

Ambassadeurs : McNab, Colin A (8x), Bologan, Victor (7x), Sznapik, Aleksander (5x), Umansky, Mikhail (5x), Cuijpers, Frans Andre (5x), Lanka, Zigurds (5x), Lagno, Kateryna (5x), Praznik, Anton (5x)

6…c6 — 17.5% (427 parties)

Ambassadeurs : Hoi, Carsten (5x), Lanka, Zigurds (4x), Jakobsen, Ole (3x), Coleman, David J (3x), Smyth, Peter (3x), Christiansen, Larry (2x), Beliavsky, Alexander G (2x), Kuzmin, Gennadi (2x)

6…Nbd7 — 13.1% (320 parties)

Ambassadeurs : Azmaiparashvili, Zurab (5x), Beliavsky, Alexander G (3x), Kaiszauri, Konstanty (3x), Copie, Jose Antonio (3x), Gavrilov, Alexei (3x), Ludgate, Alan (3x), Herbrechtsmeier, Christof (2x), Keene, Raymond D (2x)

6…c5 — 10.1% (248 parties)

Ambassadeurs : Timman, Jan H (6x), Vadasz, Laszlo (5x), Hartoch, Robert G (4x), Radulov, Ivan (4x), Beliavsky, Alexander G (3x), Pakosta, Miroslav (3x), Rovner, Dmitry (2x), Kurajica, Bojan (2x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	6…b6	6…c6	6…Nbd7	6…c5
<1800	145	22%	19%	13%	7%
1800-2200	939	25%	22%	12%	10%
2200-2600	942	42%	14%	12%	9%
2600+	32	53%	19%	9%	6%

Évolution par décennie (% des parties)

Décennie	N parties	6…b6	6…c6	6…Nbd7	6…c5
1950s	5	—	—	40%	60%
1960s	14	—	29%	14%	14%
1970s	105	13%	14%	12%	21%
1980s	264	22%	14%	17%	16%
1990s	543	29%	19%	13%	12%
2000s	762	36%	19%	12%	7%
2010s	648	32%	17%	13%	8%
2020s	105	34%	16%	4%	8%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
6…b6	32%	34%	▲ +2.0%
6…c6	17%	16%	▼ -0.8%
6…Nbd7	13%	4%	▼ -9.6%
6…c5	8%	8%	▼ -0.7%

Joueurs célèbres

Champions du monde dans cette position

Anand, Viswanathan — 2 parties
Karpov, Anatoly — 1 partie
Tal, Mikhail — 1 partie
Carlsen, Magnus — 1 partie
Kramnik, Vladimir — 1 partie

Parties historiques

6…b6 — 30.7% (750 parties)

1970 — Sandrin, Albert vs Van Driest, Therry — 1-0 — Ermelo
1973 — Kurajica, Bojan vs Antunac, Goran — 1-0 — Hoogovens-B Wijk aan Zee NED
1974 — Kengis, Edvins vs Zaichik, Gennadi — 1-0 — Tbilisi GEO
1975 — Bednarski, Jacek vs Parma, Bruno — 1/2-1/2 — Dortmund GER
1977 — Balashov, Yuri vs Timman, Jan H — 1-0 — Tilburg NED

6…c6 — 17.5% (427 parties)

1961 — Lein, Anatoly vs Savon, Vladimir — 0-1 — Baku ch-URS
1964 — Durão, Joaquim Manuel vs Zwaig, Arne — 1-0 — Tel Aviv olm
1966 — Hort, Vlastimil vs Bjornsson, Tomas — 1-0 — Oerebro
1968 — Krzisnik, Rok vs Kosanovic, Dusan — 1-0 — Slovenj Gradec
1973 — Caro, Napoleon Alberto vs De Leon, Otto — 1/2-1/2 — Caracas VEN

6…Nbd7 — 13.1% (320 parties)

1951 — Eisinger, Max Jr vs Alfred, Le Bron — 1-0 — Duesseldorf GER
1958 — Franck, Alfons vs Riddell, John — 1-0 — Mechelen
1967 — Hennings, Artur vs Kollberg, Lothar — 1-0 — Colditz GER
1968 — Capece, Adolivio vs Lekander, Rolf — 1-0 — Ybbs
1976 — Parsons, Alan vs Wall, Alejandro — 0-1 — North Wilkesboro,NC

6…c5 — 10.1% (248 parties)

1954 — Rovner, Dmitry vs Salov, Vitaly V. — 0-1 — Riga LAT
1954 — Rovner, Dmitry vs Sherbakov, Vitaly — 0-1 — Riga LAT
1955 — Zinn, Lothar vs Starck, Bodo — 1-0 — Zittau
1960 — Jezek, Stanislav vs Baumgartner, Heinz — 1-0 — Halle GER
1967 — Khasin, Abram vs Glotov, Vladimir — 0-1 — USSR

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