B91e — Sicilian: Najdorf, 6.g3 Bg4

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.g3 Bg4 * ○ 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 f4, case forte d5, case forte f5, avant-poste f4(F), paire de fous, colonne d.
Faiblesses adverses : arriéré b7, Bf8 enfermé, roi noir au centre.
Problèmes : roi au centre, Bc1 enfermé, Bf1 enfermé, arriéré f2, 4 pièces non développées (C1, F1, A1, H1).
Plans :
● O-O — Mettre le roi en sécurité, connecter les tours
● Bg5 — Clouer Nf6
● Bd3 — Développer Bf1
● Rd — Tour sur colonne d

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Avantages : majorité centre (2v1), Bg4 actif, paire de fous, colonne c.
Faiblesses adverses : arriéré f2, Bc1 enfermé, Bf1 enfermé, roi blanc au centre.
Problèmes : roi au centre, Bf8 enfermé, arriéré b7, 4 pièces non développées (B8, F8, A8, H8).
Plans :
● O-O — Mettre le roi en sécurité, connecter les tours
● ...Nbd7 — Développer Nb8
● ...Bb4 — Développer Bf8
● ...d5 — Rupture
● ...e6 — Rupture

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

B91e —

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.g3 Bg4

Eval: [+0.89]

Les coups candidats

7.f3 — 81.9% (172 parties)

Ambassadeurs : Bobotsov, Milko G (3x), Benko, Francisco (3x), Matanovic, Aleksandar (3x), Shamkovich, Leonid (2x), Pirc, Vasja (2x), Scafarelli, Francesco (2x), Panov, Vasily (2x), Fuderer, Andrija (2x)

7.Qd3 — 13.8% (29 parties)

Ambassadeurs : Pilnik, Herman (2x), Czerniak, Moshe (2x), Beni, Alfred (2x), Lundin, Erik (2x), Enevoldsen, Jens (1x), Reshevsky, Samuel (1x), Najdorf, Miguel (1x), Unzicker, Wolfgang (1x)

7.Be2 — 2.4% (5 parties)

Ambassadeurs : Bonch-Osmolovsky, Mikhail (1x), Petrosian, Tigran A. (1x), Moody, David W (1x), Braak, Dairen (1x), Pham Duc Thang (1x), Bui Tuan Phong (1x), Cao, Son (1x), Vu, Dinh Hung (1x)

7.Nf3 — 1.0% (2 parties)

Ambassadeurs : Ortega Canovas Antonio (1x), Santaella Amate, Sebastian (1x), Villegas, Alicia (1x), Doval, Oscar (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	7.f3	7.Qd3	7.Be2	7.Nf3
<1800	2	50%	50%	—	—
1800-2200	41	83%	10%	2%	2%
2200-2600	97	90%	9%	1%	—
2600+	3	100%	—	—	—

Évolution par décennie (% des parties)

Décennie	N parties	7.f3	7.Qd3	7.Be2	7.Nf3
1920s	1	100%	—	—	—
1940s	1	100%	—	—	—
1950s	42	71%	29%	—	—
1960s	9	67%	11%	11%	—
1970s	7	100%	—	—	—
1980s	7	86%	—	14%	—
1990s	26	85%	12%	—	4%
2000s	59	85%	10%	3%	2%
2010s	48	88%	10%	—	—
2020s	10	70%	20%	10%	—

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
7.f3	88%	70%	▼ -17.5%
7.Qd3	10%	20%	▲ +9.6%
7.Be2	0%	10%	▲ +10.0%
7.Nf3	0%	0%	+0.0%

Parties historiques

7.f3 — 81.9% (172 parties)

1929 — Bogoljubow, Efim vs Canal, Esteban — 1/2-1/2 — Carlsbad CZE
1947 — Prosdocimi, Arrigo vs De Freitas, Marcio Elisio — 1/2-1/2 — Porto Alegre
1950 — Sokalsky, Alexander vs Petrosian, Tigran V. — 1/2-1/2 — Moskou ch-URS
1950 — Sokolsky, Alexey vs Petrosian, Arshak B — 1/2-1/2 — Moscow ch-SU
1950 — Pfeiffer, Gerhard vs Ivkov, Borislav — 1/2-1/2 — Bled SLO

7.Qd3 — 13.8% (29 parties)

1950 — Reshevsky, Samuel vs Najdorf, Miguel — 1/2-1/2 — Amsterdam NED
1950 — Gligorić, Svetozar vs Stahlberg, Gideon — 1/2-1/2 — Amsterdam NED
1951 — Enevoldsen, Jens vs Pilnik, Herman — 1/2-1/2 — Madrid ESP
1951 — Rossolimo, Nicolas vs Pilnik, Herman — 1/2-1/2 — Beverwijk NED
1951 — Czerniak, Moshe vs Beni, Alfred — 1-0 — Vienna AUT

7.Be2 — 2.4% (5 parties)

1961 — Bonch-Osmolovsky, Mikhail vs Petrosian, Tigran A. — 0-1 — Moscow RUS
1988 — Moody, David W vs Braak, Dairen — 1-0 — Trenton, Mich.
2000 — Pham Duc Thang vs Bui Tuan Phong — 1-0 — Ha Tinh
2002 — Cao, Son vs Vu, Dinh Hung — 1-0 — Hanoi
2023 — Sarthak Rawat vs Murzin, Volodar — 0-1 — New Delhi IND

7.Nf3 — 1.0% (2 parties)

1999 — Ortega Canovas Antonio vs Santaella Amate, Sebastian — 0-1 — Malaga ESP
2001 — Villegas, Alicia vs Doval, Oscar — 1-0 — Vicente Lopez-ch IRT

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	● f2	● b7
Chaînes	● f2→g3, h2→g3	● b7→a6, e7→d6
Passés	—	—
Majorité	● aile_dame 3v2	● centre 2v1

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● f4 (2v0), ● d5 (2v1), ● f5 (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)
Bf1	● Bf1 Non développé (mob. 7)
Bg4		● Bg4 Actif (mob. 9)
Bf8		● Bf8 Non développé (mob. 0)
Paire de fous	● Oui	● Oui
Non développées	4 (c1, f1, a1, h1)	4 (b8, 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	● e4-e5, ● f2-f3	● …d6-d5, ● …e7-e6, ● …e7-e5

Partie
1929 Karlsbad – Round 18 – Bogoljubow, Efim – 1/2-1/2 – Canal, Esteban – G200 1. e4 c5 2. Nf3 d6 3. Nc3 Nf6 4. d4 cxd4 5. Nxd4 a6 6. g3 Bg4 7. f3 Bd7 8. Nd5 Nxd5 9. exd5 Qa5+ 10. b4 Qxd5
1947 BRA Ch – Round 3 – Prosdocimi, Arrigo – 1/2-1/2 – De Freitas, Marcio Elisio – G5 1. e4 c5 2. Nf3 d6 3. d4 Nf6 4. Nc3 cxd4 5. Nxd4 a6 6. g3 Bg4 7. f3 Bd7 8. Bg2 Nc6 9. O-O e6 10. Kh1 Qc7
1950 Amsterdam – Round 1 – Reshevsky, Samuel – 1/2-1/2 – Najdorf, Miguel – G30 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Nf6 6. g3 Bg4 7. Qd3 Nc6 8. Nxc6 bxc6 9. Bg2 e5 10. f4 Bd7
1950 Amsterdam – Round 15 – Gligorić, Svetozar – 1/2-1/2 – Stahlberg, Gideon – G149 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 Bg4 7. Qd3 Nc6 8. Nxc6 bxc6 9. Bg2 Bd7 10. h3 e5
1950 Bled – Round 6 – Pfeiffer, Gerhard – 1/2-1/2 – Ivkov, Borislav – G36 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 Bg4 7. f3 Bd7 8. Bg2 Nc6 9. Nb3 e6 10. Be3 b5
1950 Bled – Round 9 – Fuderer, Andrija – 1-0 – Najdorf, Miguel – G47 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 Bg4 7. f3 Bd7 8. Bg2 Nc6 9. Be3 e6 10. O-O Be7
1950 Moskou ch-URS – Round 1 – Sokalsky, Alexander – 1/2-1/2 – Petrosian, Tigran V – G68 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 Bg4 7. f3 Bd7 8. Be3 Nc6 9. Bg2 g6 10. O-O Bg7
1951 Buenos Aires – Round 1 – Benko, Francisco – 1-0 – Luckis, Marcos – G21 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 Bg4 7. f3 Bd7 8. Bg5 e6 9. Qd2 Nc6 10. Nce2 Qc7
1951 Buenos Aires – Round 16 – Benko, Francisco – 0-1 – Shocron, Ruben – G88 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 Bg4 7. f3 Bd7 8. g4 h6 9. Be2 Nc6 10. Be3 b5
1951 Buenos Aires ARG – Round ? – Benko, Francisco – 0-1 – Shocron, Ruben – G4 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 Bg4 7. f3 Bd7 8. Be3 e6 9. Qd2 Nc6 10. Nb3 b5
1951 Hoogovens – Round 1 – Rossolimo, Nicolas – 1/2-1/2 – Pilnik, Herman – G2 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 Bg4 7. Qd3 e5 8. Nde2 Nc6 9. Bg2 Be7 10. Bg5 Rc8
1951 Hoogovens – Round 3 – Stumpers, Louis – 0-1 – Rossolimo, Nicolas – G6 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 Bg4 7. f3 Bd7 8. Bg2 Nc6 9. Be3 e5 10. Nde2 Rc8
1951 Madrid ESP – Round 8 – Enevoldsen, Jens – 1/2-1/2 – Pilnik, Herman – G18 1. e4 c5 2. Nf3 d6 3. d4 Nf6 4. Nc3 cxd4 5. Nxd4 a6 6. g3 Bg4 7. Qd3 Nbd7 8. h3 Ne5 9. Qe3 Qb6 10. hxg4 Qxd4
1951 Mar del Plata zt – Round 3 – Bolbochan, J. – 0-1 – Rossetto, Hector – G27 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 Bg4 7. Qd3 Nbd7 8. h3 Ne5 9. Qe3 Qb6 10. f4 Nf3+
1951 Schlechter Memorial – Round ? – Beni, Alfred – 1/2-1/2 – Mueller, Hans – G26 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 Bg4 7. Qd3 Nbd7 8. h3 Ne5 9. Qe3 Qb6 10. Bg2 Bd7
1951 Schlechter Memorial – Round ? – Czerniak, Moshe – 0-1 – Lundin, Erik – G13 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 Bg4 7. Qd3 Nbd7 8. f4 Nc5 9. Qe3 e5 10. Nb3 Nxb3
1951 Schlechter Memorial – Round ? – Czerniak, Moshe – 1-0 – Beni, Alfred – G25 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 Bg4 7. Qd3 Nc6 8. Nxc6 bxc6 9. Bg2 e5 10. O-O Be7
1951 YUG Ch 6th – Round 16 – Majstorovic, Ljubomir – 0-1 – Fuderer, Andrija – G95 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 Bg4 7. f3 Bd7 8. Be3 Nc6 9. Qd2 e5 10. Nde2 Be6
1951 Zonal – Round 1 – Matanovic, Aleksandar – 1/2-1/2 – Pirc, Vasja – G2 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 Bg4 7. f3 Bd7 8. Be3 e5 9. Nde2 Bc6 10. Qd2 Nbd7
1951 Zonal Bad Pyrmont GER – Round 3 – Matanovic, Aleksandar – 1-0 – Kuebart, Erich – G7 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 Bg4 7. f3 Bd7 8. Be3 e5 9. Nb3 Be6 10. Nd5 Bxd5
1952 Helsinki olm – Round 1 – Beni, Alfred – 1-0 – Scafarelli, Francesco – G182 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 Bg4 7. f3 e5 8. fxg4 exd4 9. Qxd4 Nxg4 10. Be2 Nc6
1952 ITA-ch15 – Round 3 – Castaldi, Vincenzo – 1-0 – Szabados, Eugenio – G16 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 Bg4 7. f3 Bd7 8. Be3 Nc6 9. Qd2 e6 10. Qf2 Be7
1952 Liberation – Round 15 – Matanovic, Aleksandar – 1/2-1/2 – Pirc, Vasja – G42 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 Bg4 7. Qd3 Nbd7 8. h3 Nc5 9. Qe3 Bd7 10. Bg2 e5
1953 URS Ch sf Vilnius LTU – Round ? – Panov, Vasily – 1/2-1/2 – Shamkovich, Leonid – G11 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 Bg4 7. f3 Bd7 8. Bg2 g6 9. Be3 Bg7 10. Qd2 Nc6
1954 Olympiad final B – Round 11 – Walsh, James – 0-1 – Scafarelli, Francesco – G66 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 Bg4 7. f3 Bd7 8. Be3 Nc6 9. Bg2 g6 10. Nd5 Nxd5
1955 Argentina – Round 7 – Reinhardt, Enrique – 0-1 – Sanguinetti, Renato – G49 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 Bg4 7. f3 Bd7 8. Be3 Nc6 9. Bg2 e6 10. O-O Ne5
1961 Moscow – Round 1 – Bonch-Osmolovsky, Mikhail – 0-1 – Petrosian, Tigran A. – G10 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 Bg4 7. Be2 Bxe2 8. Qxe2 e6 9. g4 Nc6 10. Be3 Rc8
1962 URS Team Ch – Round 1 – Kots, Yuri I – 0-1 – Shestoperov, Aleksej – G61 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 Bg4 7. f3 Bd7 8. Be3 Nc6 9. Qd2 e6 10. g4 Be7
1964 EU Team Ch sf – Round 6.4 – Fuchs, Reinhart – 1/2-1/2 – Bobotsov, Milko G – G89 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 Bg4 7. f3 Bd7 8. Be3 e6 9. Qd2 Be7 10. O-O-O Nc6
1964 Pecs – Round 5 – Pogats, Jozsef Jr. – 0-1 – Bobotsov, Milko G – G26 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 Bg4 7. f3 Bd7 8. Be3 Nc6 9. Qd2 e6 10. Be2 Be7
1964 WchT U26 11. fin-A – Round 2.2 – Tsagan, T – 0-1 – Radulov, Ivan – G27 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 Bg4 7. Nde2 Bf3 8. Rg1 Nc6 9. Bg2 Bxg2 10. Rxg2 g6
1966 Hoogovens 28th – Round 11 – Czerniak, Magdalena – 1/2-1/2 – Bobotsov, Milko G – G31 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 Bg4 7. f3 Bd7 8. Be3 e6 9. Qd2 Be7 10. O-O-O O-O
1973 Leningrad Interzonal – Round 5 – Huebner, Robert – 1/2-1/2 – Quinteros, Miguel Angel – G79 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 Bg4 7. f3 Bd7 8. Be3 Nc6 9. Qd2 e6 10. g4 h6
Belgrade 1989 – Round 1 – Popovic, Patrik – 1/2-1/2 – Ljubojevic, Ljubomir – G14 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 Bg4 7. f3 Bd7 8. g4 h6 9. Be3 e6 10. h4 Be7
World Blitz 2017 – Round 6.18 – Malakhov, Valentyn – 0-1 – Svidler, Peter – G294 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 Bg4 7. f3 Bd7 8. Be3 h5 9. Qd2 Nc6 10. O-O-O e6
World Rapid 2019 – Round 12.64 – Abdusattorov, Nodirbek – 1-0 – Guliyev, Namig – G804 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 Bg4 7. f3 Bd7 8. Be3 e6 9. Qd2 b5 10. Bg2 Nc6

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