B09 — Pirc Defense

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 ● Trait aux Noirs

Ouverture — Centre semi-ouvert

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Atouts. Les Blancs s'appuient sur les cases fortes b5 et d5 et la paire de fous.

Côté adverse. Les fous enfermés en c8 et f8 et le roi resté au centre.

En contrepartie. Le roi n'est pas encore à l'abri et plusieurs pièces dorment encore (le cavalier g1, les fous c1 et f1 et les tours a1 et h1).

Plans. O-O (Mettre le roi en sécurité, connecter les tours) ; Nf3 (Développer Ng1) ; Bg5 (Clouer Nf6) ; Bd3 (Développer Bf1).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Atouts. Les Noirs s'appuient sur la case forte g4 et la paire de fous.

Côté adverse. Les fous enfermés en c1 et f1 et le roi resté au centre.

En contrepartie. Le roi n'est pas encore à l'abri et plusieurs pièces dorment encore (le cavalier b8, les fous c8 et f8 et les tours a8 et h8).

Plans. O-O (Mettre le roi en sécurité, connecter les tours) ; ...Nbd7 (Développer Nb8) ; ...Bf5 (Développer Bc8) ; ...Bb4 (Développer Bf8) ; ...c6 (Rupture).

Avantages

Faiblesses adverses

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)	● g4 (2v1)
Cases faibles	—	—
Centre	● d4 (1v0), ● d5 (2v1), ● e5 (2v1)	—

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 2)
Bf1	● Bf1 Non développé (mob. 5)
Bc8		● Bc8 Non développé (mob. 5)
Bf8		● Bf8 Non développé (mob. 2)
Paire de fous	● Oui	● Oui
Non développées	5 (g1, c1, f1, 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	semi-ouvert
Ruptures	● d4-d5, ● e4-e5, ● f4-f5	● …c7-c6, ● …c7-c5, ● …d6-d5, ● …e7-e6, ● …e7-e5

Partie
1955 URS Ch sf – Round 1 – Estrin, Yakov – 0-1 – Gusev, Aleksandr – G53 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 c6 5. Nf3 Bg7 6. Be2 O-O 7. O-O b5 8. e5 Ne8 9. Ne4 Nc7 10. a4 Bb7
1958 Riga ch-URS – Round 19 – Krogius, Nikolai V – 1/2-1/2 – Polugaevsky, Lev – G142 1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. f4 Nf6 5. Nf3 c5 6. Bb5+ Bd7 7. e5 Ng4 8. e6 Bxb5 9. exf7+ Kd7 10. Nxb5 Qa5+
1958 UKR Ch – Round 8 – Ousatchi, Mark – 1/2-1/2 – Nikolaevsky, Yuri V – G37 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 c5 6. Bb5+ Bd7 7. e5 Ng4 8. e6 Bxb5 9. exf7+ Kd7 10. Nxb5 Qa5+
1960 Buenos Aires ch-ARG – Round 9 – Behrensen, Jorge – 0-1 – Pelikan, Anna – G67 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 c6 5. a4 Bg7 6. Nf3 O-O 7. Be2 a5 8. O-O Qb6 9. Kh1 Na6 10. e5 Ne8
1961 Mar del Plata – Round 2 – Reinhardt, Enrique – 1-0 – Pelikan, Jan – G35 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 c6 5. Nf3 Bg7 6. Be2 O-O 7. O-O b5 8. a3 a6 9. Kh1 Nbd7 10. e5 Nd5
1961 URS Ch sf Batumi GEO – Round ? – Nei, Iivo – 1-0 – Arakelov, Ilya – G41 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 c5 6. Bb5+ Bd7 7. e5 Ng4 8. e6 Bxb5 9. exf7+ Kd7 10. Nxb5 Qa5+
1964 Tel Aviv olm fin-A – Round 3 – Filipowicz, Andrzej – 0-1 – Suttles, Duncan – G64 1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. f4 Nf6 5. Nf3 c5 6. Bb5+ Bd7 7. e5 Ng4 8. e6 Bxb5 9. exf7+ Kd7 10. Nxb5 Qa5+
1965 Buenos Aires ch-ARG – Round 12 – Calneggia , Aldo – 0-1 – Pelikan, Anna – G82 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 c6 5. Nf3 Bg7 6. Bd3 Qb6 7. e5 Nd5 8. Nxd5 cxd5 9. Qe2 Bg4 10. c3 dxe5
1965 Vancouver – Round 8.4 – Kerr Ray – 1/2-1/2 – Suttles, Duncan – G8 1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. f4 Nf6 5. Nf3 c5 6. Bb5+ Bd7 7. e5 Ng4 8. e6 Bxb5 9. exf7+ Kd7 10. Nxb5 Qa5+
1966 La Habana olm fin-B – Round 8 – Zuidema, Coen – 1/2-1/2 – Suttles, Duncan – G124 1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. f4 Nf6 5. Nf3 c5 6. Bb5+ Bd7 7. e5 Ng4 8. e6 Bxb5 9. exf7+ Kd7 10. Nxb5 Qa5+
1966 New York ch-USA – Round 9 – Zuckerman, Bernard – 1/2-1/2 – Benko, Pal – G48 1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. f4 Nf6 5. Nf3 c5 6. Bb5+ Bd7 7. e5 Ng4 8. e6 Bxb5 9. exf7+ Kd7 10. Nxb5 Qa5+
1966 Rio Hondo zt – Round 12 – Rubinetti, Jorge – 1-0 – Pelikan, Jan – G71 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 c6 5. Nf3 Bg7 6. Bd3 O-O 7. O-O Qb6 8. Kh1 Bg4 9. e5 Ne8 10. Ne2 Nd7
1966 Rio Hondo zt – Round 16 – Camara, Hamady – 1-0 – Pelikan, Jan – G99 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 c6 5. Nf3 Bg7 6. Bd3 Bg4 7. h3 Bxf3 8. Qxf3 Qb6 9. Be3 Qxb2 10. Kd2 Qa3
1967 Sarajevo – Round 4 – Tringov, Georgi P – 0-1 – Benko, Pal – G25 1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. f4 Nf6 5. Nf3 c5 6. Bb5+ Bd7 7. e5 Ng4 8. e6 Bxb5 9. exf7+ Kd7 10. Nxb5 Qa5+
1967 Winnipeg – Round 4 – Keres, Paul – 1/2-1/2 – Benko, Pal – G26 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 c5 6. Bb5+ Bd7 7. e5 Ng4 8. e6 Bxb5 9. exf7+ Kd7 10. Nxb5 Qa5+
1967 Winnipeg – Round 6.10 – Keres, Paul Petrovich – 1/2-1/2 – Benko, Pal – G34 1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. f4 Nf6 5. Nf3 c5 6. Bb5+ Bd7 7. e5 Ng4 8. e6 Bxb5 9. exf7+ Kd7 10. Nxb5 Qa5+
1968 Belgrade (Women) 4th – Round 12 – Van der Mije Nicolau, Alexandra – 1-0 – Lazarevic, Milunka – G45 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 c6 5. a4 Bg7 6. Nf3 O-O 7. Be2 d5 8. e5 Ng4 9. O-O Na6 10. Nh4 Nh6
1968 Kislovodsk – Round 14 – Ryts, J. – 1/2-1/2 – Khasin, Abram – G98 1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. f4 Nf6 5. Nf3 c5 6. Bb5+ Bd7 7. e5 Ng4 8. e6 Bxb5 9. exf7+ Kd7 10. Nxb5 Qa5+
1969 Corr ch HUN sf – Round ? – Faddi, B – 1/2-1/2 – Schrancz, Istvan – G9 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 c5 6. Bb5+ Bd7 7. e5 Ng4 8. e6 Bxb5 9. exf7+ Kd7 10. Nxb5 Qa5+
1969 POL-SVE – Round 1.7 – Filipowicz, Andrzej – 1/2-1/2 – Platzack, Sven – G6 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 c5 6. e5 Ng4 7. Bb5+ Bd7 8. e6 Bxb5 9. exf7+ Kd7 10. Nxb5 Qa5+
1970 Palma de Mallorca Interzonal – Round 16 – Rubinetti, Jorge – 1/2-1/2 – Suttles, Duncan – G233 1. e4 g6 2. d4 d6 3. Nc3 Bg7 4. f4 Nf6 5. Nf3 c5 6. dxc5 Qa5 7. Bd3 Qxc5 8. Qe2 O-O 9. Be3 Qa5 10. O-O Nc6
1970 Vinkovci – Round 15 – Gligoric, Svetozar – 1-0 – Quinteros, Miguel Angel – G16 1. d4 d6 2. e4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 O-O 6. Bd3 Nc6 7. e5 dxe5 8. fxe5 Ng4 9. Be4 f6 10. h3 Nh6
1970 Vinkovci – Round 7 – Bronstein, David Ionovich – 1/2-1/2 – Parma, Bruno – G91 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 O-O 6. Bd3 Nc6 7. d5 Nb4 8. O-O c6 9. dxc6 bxc6 10. Kh1 Nxd3
1971 Hoogovens – Round 1 – Witkowski, Stanislaw – 0-1 – Timman, Jan H – G155 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 O-O 6. Be2 c5 7. dxc5 Qa5 8. Nd2 Qxc5 9. Nb3 Qb6 10. Qd3 Nbd7
1971 Hoogovens – Round 1 – Witkowski, Stanislaw – 1/2-1/2 – Hartoch, Robert G – G154 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 O-O 6. Be2 c5 7. dxc5 Qa5 8. Nd2 Qxc5 9. Nb3 Qb6 10. Qd3 Bg4
1971 Hoogovens – Round 4 – Cuijpers, Frans Andre – 0-1 – Hort, Vlastimil – G156 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 O-O 6. Bd3 Nc6 7. e5 dxe5 8. fxe5 Ng4 9. h3 Nh6 10. Be3 f6
1971 Moscow – Round 1 – Savon, Vladimir Andreevichndreevich – 1/2-1/2 – Hort, Vlastimil – G167 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 O-O 6. Bd3 Nc6 7. f5 Nb4 8. fxg6 hxg6 9. Bg5 Nxd3+ 10. Qxd3 d5
1971 Moscow – Round 1 – Savon, Vladimir Andreevichndreevich – 1/2-1/2 – Hort, Vlastimil – G168 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 O-O 6. Bd3 Nc6 7. f5 Nb4 8. fxg6 Nxd3+ 9. Qxd3 hxg6 10. Bg5 d5
1972 Skopje ol (Men) fin-A – Round 15 – Hort, Vlastimil – 1-0 – Donner, Jan Hein – G298 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 O-O 6. Bd3 Nc6 7. e5 dxe5 8. dxe5 Nd5 9. Bd2 Nxc3 10. Bxc3 Bf5
1972 Skopje ol (Men) fin-A – Round 2 – Gligoric, Svetozar – 0-1 – Hort, Vlastimil – G117 1. d4 g6 2. e4 d6 3. Nc3 Bg7 4. f4 Nf6 5. Nf3 c5 6. dxc5 Qa5 7. Bd3 Qxc5 8. Qe2 O-O 9. Be3 Qa5 10. O-O Bg4
1972 Skopje ol (Men) fin-A – Round 2 – Ljubojevic, Ljubomir – 1/2-1/2 – Jansa, Vlastimil – G294 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Bc4 c5 6. e5 Nfd7 7. Nf3 cxd4 8. Qxd4 O-O 9. Qe4 Nc6 10. e6 fxe6
1972 Skopje ol (Men) fin-A – Round 5 – Ljubojevic, Ljubomir – 1-0 – Benko, Pal – G299 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 c5 6. Bb5+ Bd7 7. e5 Ng4 8. h3 cxd4 9. Qxd4 Bxb5 10. Nxb5 Nc6
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
1972 Skopje ol (Men) fin-A – Round 7 – Filipowicz, Andrzej – 1/2-1/2 – Padevsky, Nikola – G297 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 c5 6. Bb5+ Nfd7 7. dxc5 dxc5 8. O-O O-O 9. e5 a6 10. Bd3 Nb6
1974 Manila – Round 1 – Pfleger, Helmut, Dr. – 0-1 – Torre, Eugenio – G108 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. e5 Nfd7 6. Nf3 c5 7. exd6 O-O 8. dxe7 Qxe7+ 9. Be2 cxd4 10. Nb5 Nc6
1974 Manila – Round 9 – Ljubojevic, Ljubomir – 1-0 – Torre, Eugenio – G109 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 c5 6. dxc5 Qa5 7. Bd3 Qxc5 8. Qe2 O-O 9. Be3 Qa5 10. O-O Nc6
6. Norway Blitz 2018 – Round 9.1 – Nakamura, Hikaru – 1/2-1/2 – Carlsen, Magnus – G41 1. d4 g6 2. e4 d6 3. Nc3 Bg7 4. f4 Nf6 5. Nf3 c5 6. Bb5+ Bd7 7. e5 Ng4 8. e6 Bxb5 9. exf7+ Kf8 10. Nxb5 Qa5+
Amber-rapid 17th 2008 – Round 7 – Karjakin, Sergey – 1/2-1/2 – Mamedyarov, Shakhriyar – G10 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 c5 6. Bb5+ Bd7 7. e5 Ng4 8. e6 Bxb5 9. exf7+ Kf8 10. Nxb5 Qa5+
Interpolis 5th 1981 – Round 2 – Timman, Jan H – 1-0 – Spassky, Boris V. – G1 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 c5 6. Bb5+ Bd7 7. e5 Ng4 8. e6 Bxb5 9. exf7+ Kd7 10. Nxb5 Qa5+
World Cup 1988 – Round 1 – Beliavsky, Alexander G – 1-0 – Tal, Mikhail – G22 1. d4 d6 2. e4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 c5 6. Bb5+ Bd7 7. e5 Ng4 8. e6 Bxb5 9. exf7+ Kd7 10. Nxb5 Qa5+

B09a — Austrian Attack

1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.f4

Eval: [+0.55]

Les coups candidats

4…Bg7 — 96.8% (26928 parties) →

Ambassadeurs : Conterno, Dominique (59x), Zimmerman, Yuri (54x), Timman, Jan H (52x), Valdes Romero, Leonardo (49x), ? (48x), Cuijpers, Frans Andre (45x), Donner, Jan-Hein (44x), Gipslis, Aivars (37x)

4…c6 — 1.7% (464 parties)

Ambassadeurs : Ruckschloss, Karol (28x), Pelikan, Jan (3x), Birk, Rainer (3x), Zvan, Ziga (3x), Vavpetic, Vid (3x), del Arco Gimeno, Juan (3x), Tonal, Jean-jacques (3x), Behrensen, Jorge (2x)

4…Bg4 — 0.5% (138 parties)

Ambassadeurs : Balla, Daniel (2x), Martin Romero, Nestor Effren (2x), Carretero Ajo, Jesus (1x), Arias Soto, Miguel Angel (1x), Peiro, Sergio (1x), Barbero, Gerardo F (1x), Verfuerth, Christian (1x), Almeda Bauer, Mateo (1x)

4…c5 — 0.4% (119 parties)

Ambassadeurs : Noll, Sonja (3x), Messa, Roberto (2x), Stemmler, Lysan (2x), Kalyan, Shrestha Shubha (2x), Mignoni, Yussana Caue (2x), Privara, Igor (1x), Hlavaty Peter (1x), Benko, Francisco (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	4…Bg7	4…c6	4…Bg4	4…c5
<1800	1046	93%	2%	2%	1%
1800-2200	10504	96%	2%	1%	0%
2200-2600	8036	98%	1%	0%	0%
2600+	196	100%	—	—	—

Évolution par décennie (% des parties)

Décennie	N parties	4…Bg7	4…c6	4…Bg4	4…c5
1850s	2	100%	—	—	—
1880s	2	100%	—	—	—
1890s	1	100%	—	—	—
1900s	1	100%	—	—	—
1910s	3	100%	—	—	—
1920s	6	100%	—	—	—
1930s	4	100%	—	—	—
1940s	6	100%	—	—	—
1950s	134	99%	1%	—	—
1960s	591	98%	2%	—	—
1970s	1547	99%	1%	0%	0%
1980s	2249	99%	1%	0%	0%
1990s	6353	97%	1%	0%	0%
2000s	8108	96%	2%	1%	1%
2010s	7657	96%	2%	1%	0%
2020s	1163	96%	2%	0%	0%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
4…Bg7	96%	96%	-0.2%
4…c6	2%	2%	▲ +0.6%
4…Bg4	1%	0%	-0.1%
4…c5	0%	0%	-0.2%

Joueurs célèbres

Champions du monde dans cette position

Tal, Mikhail — 10 parties
Anand, Viswanathan — 9 parties
Kramnik, Vladimir — 8 parties
Carlsen, Magnus — 5 parties
Botvinnik, Mikhail — 3 parties
Smyslov, Vladimir — 2 parties
Karpov, Aleksandr — 1 partie
Ding, Liren — 1 partie

Parties historiques

4…Bg7 — 96.8% (26928 parties)

1850 — Cochrane, John Miles vs Bonnerjee, Mohishunder — 0-1 — Calcutta IND
1854 — Cochrane, John Miles vs Bonnerjee, Mohishunder — 1-0 — Calcutta IND
1883 — White, Max vs Paulsen, Louis — 0-1 — Nuerenberg GER
1889 — Burn, Amos vs Paulsen, Louis — 1-0 — Breslau GER
1896 — Tarrasch, Siegbert vs Charousek Rudolf Rezso — 1-0 — Nuerenberg GER

4…c6 — 1.7% (464 parties)

1955 — Estrin, Yakov vs Gusev, Aleksandr — 0-1 — Moscow RUS
1955 — Jezek, Jakub vs Rejdal, Nadir — 1-0 — Brno ch CZE sf
1960 — Behrensen, Jorge vs Pelikan, Anna — 0-1 — Buenos Aires ch-ARG
1960 — Perez Perez, Francisco Jose vs Sandor, Bela — 0-1 — Beverwijk NED
1961 — Reinhardt, Enrique vs Pelikan, Jan — 1-0 — Mar del Plata ARG

4…Bg4 — 0.5% (138 parties)

1977 — Peiro, Sergio vs Barbero, Gerardo F — 0-1 — Tucuman ARG
1982 — Carretero Ajo, Jesus vs Arias Soto, Miguel Angel — 1-0 — Valladolid
1990 — Verfuerth, Christian vs Almeda Bauer, Mateo — 1-0 — Bochum GER
1991 — Khorras, M. vs Khakstein, G. — 1-0 — Moscow RUS
1991 — Grimstad Svanhild B vs Martiniussen Olav — 1-0 — Gjovik

4…c5 — 0.4% (119 parties)

1971 — Benko, Francisco vs Adad, Carlos — 1-0 — Mar del Plata ARG
1973 — Feibert, Petra vs Winter, Irene — 0-1 — Erfurt GER
1981 — Daamen, Ferry vs De Jong, Sylvia — 1-0 — ?
1981 — Sarkisian, Telman vs Ufimtsev, Anatoly — 0-1 — Erevan ARM
1981 — Messa, Roberto vs Dalvi Smit — 1-0 — Caorle ITA

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