B91c — Sicilian: Najdorf, 6.g3 g6

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.g3 g6 * ○ 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, paire de fous, colonne d.
Faiblesses adverses : arriéré b7, Bc8 enfermé, 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), case forte g4, paire de fous, colonne c.
Faiblesses adverses : arriéré f2, Bc1 enfermé, Bf1 enfermé, roi blanc au centre.
Problèmes : roi au centre, Bc8 enfermé, Bf8 enfermé, arriéré b7, 5 pièces non développées (B8, C8, F8, A8, H8).
Plans :
● O-O — Mettre le roi en sécurité, connecter les tours
● ...Nbd7 — Développer Nb8
● ...Bf5 — Développer Bc8
● ...Bb4 — Développer Bf8
● ...d5 — Rupture

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

B91c —

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.g3 g6

Eval: [+0.19]

Les coups candidats

7.Bg2 — 98.2% (759 parties)

Ambassadeurs : Auvinen, Esa (7x), Kevlishvili, Robby (6x), Skuhala, Jernej (5x), Khismatullin, Denis (4x), Schammo, Jean (3x), Nagy, Bence (3x), Jouneau, Quentin (3x), Kagan, Shimon (3x)

7.h3 — 0.9% (7 parties)

Ambassadeurs : Ivanov, Sergei V. (2x), Hesse, Juergen (1x), Zoler, Dan (1x), Steinberg, Nitzan (1x), Velickovic, Sasa (1x), Ciorgovean, Iustin (1x), Abrosimov, Egor (1x), Volkov, Roman (1x)

7.Be3 — 0.5% (4 parties)

Ambassadeurs : Perdomo Flores, Jose (1x), Camino Carrio, Nicanor (1x), Stott, Greg (1x), Goze, Tolga (1x), Cordero Esparza, Nicolas Sebastian (1x), Santoyo Silva, Sergio Julian (1x), Lee, Michael (1x), Szymanski, Robert (1x)

7.f3 — 0.1% (1 parties)

Ambassadeurs : Kahn, Evarth Dr. (1x), Hagesather, Halvard (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	7.Bg2	7.h3	7.Be3	7.f3
<1800	6	100%	—	—	—
1800-2200	273	98%	1%	0%	—
2200-2600	351	98%	1%	0%	0%
2600+	28	100%	—	—	—

Évolution par décennie (% des parties)

Décennie	N parties	7.Bg2	7.h3	7.Be3	7.f3
1920s	1	100%	—	—	—
1940s	4	100%	—	—	—
1950s	16	100%	—	—	—
1960s	19	100%	—	—	—
1970s	18	100%	—	—	—
1980s	18	100%	—	—	—
1990s	66	95%	2%	2%	2%
2000s	194	98%	—	1%	—
2010s	360	98%	1%	0%	—
2020s	77	97%	1%	1%	—

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
7.Bg2	98%	97%	▼ -0.9%
7.h3	1%	1%	-0.1%
7.Be3	0%	1%	▲ +1.0%
7.f3	0%	0%	+0.0%

Joueurs célèbres

Champions du monde dans cette position

Carlsen, Magnus — 1 partie
Ju, Wenjun — 1 partie
Gukesh D — 1 partie

Parties historiques

7.Bg2 — 98.2% (759 parties)

1927 — Loman, Rudolf vs Van den Bosch, Johannes — 0-1 — The Hague NED
1942 — Foltys, Jan vs Opocensky, Karel — 0-1 — Prague CZE
1946 — Tolush, Alexander V vs Opocensky, Karel — 1-0 — Leningrad RUS
1947 — Pilnik, Herman vs Rossetto, Hector — 1/2-1/2 — Buenos Aires ARG
1948 — Tartakower, Savielly vs Troianescu, Octav — 0-1 — Karlovy Vary

7.h3 — 0.9% (7 parties)

1997 — Hesse, Juergen vs Zoler, Dan — 0-1 — Berlin GER
2015 — Rodriguez De Robles, Ignacio vs Tipter, Napoleon — 0-1 — Collado Villalba ESP
2016 — Volkov, Roman vs Orlov, Konstantin — 1-0 — St Petersburg RUS
2017 — Ivanov, Sergei V. vs Steinberg, Nitzan — 0-1 — St Petersburg RUS
2017 — Velickovic, Sasa vs Ciorgovean, Iustin — 0-1 — Arad ROU

7.Be3 — 0.5% (4 parties)

1995 — Perdomo Flores, Jose vs Camino Carrio, Nicanor — 1/2-1/2 — Las Palmas ESP
2000 — Stott, Greg vs Goze, Tolga — 0-1 — ?
2016 — Cordero Esparza, Nicolas Sebastian vs Santoyo Silva, Sergio Julian — 0-1 — Gachantiva
2021 — Lee, Michael vs Szymanski, Robert — 1/2-1/2 — ICCF

7.f3 — 0.1% (1 parties)

1998 — Kahn, Evarth Dr. vs Hagesather, Halvard — 1-0 — Budapest HUN

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	● f2	● b7
Chaînes	● f2→g3, h2→g3	● b7→a6, e7→d6, f7→g6, h7→g6
Passés	—	—
Majorité	● aile_dame 3v2	● centre 2v1

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● f4 (2v0), ● 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)
Bf1	● Bf1 Non développé (mob. 7)
Bc8		● Bc8 Non développé (mob. 5)
Bf8		● Bf8 Non développé (mob. 2)
Paire de fous	● Oui	● Oui
Non développées	4 (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	● e4-e5, ● f2-f3	● …d6-d5, ● …e7-e6, ● …e7-e5

Partie
1942 Duras 60 Memorial – Round 2 – Foltys, Jan – 0-1 – Opocensky, Karel – G8 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 g6 7. Bg2 Bg7 8. O-O O-O 9. h3 Nbd7 10. Kh2 Nc5
1946 Leningrad-Prague – Round 1 – Tolush, Alexander V – 1-0 – Opocensky, Karel – G4 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 g6 7. Bg2 Bg7 8. O-O O-O 9. h3 e5 10. Nde2 Nc6
1947 Buenos Aires/La Plata – Round 4 – Pilnik, Herman – 1/2-1/2 – Rossetto, Hector – G10 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 g6 7. Bg2 Bg7 8. h3 O-O 9. O-O Qc7 10. Be3 Nc6
1948 Karlovy Vary – Round 18 – Tartakower, Savielly – 0-1 – Troianescu, Octav – G172 1. e4 c5 2. Ne2 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 g6 7. Bg2 Bg4 8. f3 Bd7 9. Be3 Bg7 10. Qd2 Nc6
1951 GER Ch U20 – Round 11 – Stahl, Franz – 0-1 – Darga, Klaus – G33 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 g6 7. Bg2 Bg7 8. O-O O-O 9. h3 Nc6 10. Be3 Ne5
1951 Mar del Plata zt – Round 23 – Flores Alvarez, Rodrigo – 1-0 – Sumar, Julio – G231 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 g6 7. Bg2 Bg7 8. O-O O-O 9. h3 Qc7 10. Be3 Nc6
1952 Moskou ch-URS – Round ? – Aronin, Lev – 1/2-1/2 – Byvshev, Vasily – G163 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 g6 7. Bg2 Bg7 8. O-O O-O 9. h3 Bd7 10. Be3 Nc6
1952 Stevenson Memorial 4th – Round 4 – Yanofsky, Daniel Abraham – 1-0 – Scafarelli, Francesco – G6 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 g6 7. Bg2 Bg7 8. O-O O-O 9. h3 Bd7 10. Kh2 Nc6
1952 Stevenson Memorial 4th – Round 6 – Leslie, Donald Daniel – 0-1 – Scafarelli, Francesco – G10 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 g6 7. Bg2 Bg7 8. O-O Qb6 9. Be3 Qxb2 10. Na4 Qb4
1955 Ljubljana – Round 1 – Kieninger, Georg – 1/2-1/2 – Bertok, Mario Jr. – G3 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 g6 7. Bg2 Bg7 8. O-O Bd7 9. h3 Nc6 10. Nce2 O-O
1957 Danmarksmesterskabet – Round 6 – Pedersen, Eigil – 0-1 – Andersen, Borge – G20 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 g6 7. Bg2 Bg7 8. O-O O-O 9. h3 Bd7 10. Be3 Nc6
1958 Munich olm prel – Round 7 – Ennigrou, A – 0-1 – Djurasevic, Bozidar – G163 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 g6 7. Bg2 Bg7 8. O-O O-O 9. Be3 Ng4 10. Re1 Nxe3
1958 Munich olm prel – Round 7 – Tarnowski, Alfred – 1-0 – Abreu Sanchez, Leonel Jesus – G64 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 g6 7. Bg2 Bg7 8. O-O O-O 9. h3 Bd7 10. Be3 Nc6
1960 Leipzig olm fin-B – Round 10 – Diez del Corral, Jesus – 0-1 – Kraidman, Yair – G131 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 g6 7. Bg2 Bg7 8. O-O O-O 9. h3 Nc6 10. Be3 Bd7
1962 BRA Ch – Round 1 – Salles, Humberto – 1-0 – Mangini, Jose Henrique de Mello – G2 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 g6 7. Bg2 Bg7 8. O-O O-O 9. Kh1 Bg4 10. f3 Bd7
1962 Varna olm – Round 1 – Cagan, Ayse Ecrin – 0-1 – Filipowicz, Andrzej – G38 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 g6 7. Bg2 Bg7 8. O-O O-O 9. h3 Bd7 10. Be3 Nc6
1963 BRA Ch – Round 14 – Alves, Francisco H B Severino – 0-1 – Belfort Mattos, Jose N – G41 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 g6 7. Bg2 Bg7 8. O-O O-O 9. h3 Qc7 10. Be3 Bd7
1963 Pan American Ch – Round 2 – Gadia, Olicio – 0-1 – Cadena Munoz, Juan Jose – G9 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 g6 7. Bg2 Bg7 8. O-O O-O 9. h3 Bd7 10. Be3 Nc6
1964 EU Team Ch sf – Round 1.4 – Fuchs, Reinhart – 1/2-1/2 – Bilek, Istvan – G9 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 g6 7. Bg2 Bg7 8. h3 Bd7 9. O-O Nc6 10. Be3 Rc8
1964 WchT U26 11. fin-A – Round 6.3 – Ujtumen, Tudev – 1-0 – Velimirovic, Dragoljub – G105 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 g6 7. Bg2 Bg7 8. O-O O-O 9. h3 Bd7 10. Kh2 Nc6
1965 Chacabuco – Round 5 – Kuperman, Carlos – 0-1 – Foguelman, Alberto – G14 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 g6 7. Bg2 Bg7 8. O-O Bd7 9. h3 Nc6 10. Be3 Na5
1965 ISR Ch – Round 12 – Czerniak, Moshe – 0-1 – Minsker, Reuven – G48 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 g6 7. Bg2 Bg7 8. O-O O-O 9. Kh1 Qc7 10. Bg5 Nbd7
1965 ISR Ch – Round 14 – Czerniak, Moshe – 1-0 – Peli, Giora Dr – G56 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 g6 7. Bg2 Bg7 8. O-O O-O 9. Qe2 Qc7 10. Bg5 Nbd7
1965 It II Beverwijk NED – Round 9 – Kramer, Haije – 1/2-1/2 – Gereben, Erno – G26 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 g6 7. Bg2 Bg7 8. O-O O-O 9. h3 Nbd7 10. Nd5 Nc5
1966 Sarajevo – Round 7 – Pietzsch, Wolfgang – 1-0 – Gasic, Bozidar – G20 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 g6 7. Bg2 Bg7 8. O-O O-O 9. h3 b5 10. e5 dxe5
1967 Monte Carlo – Round 8 – Matanovic, Aleksandar – 1/2-1/2 – Fischer, Robert J – G30 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 g6 7. Bg2 Bg7 8. O-O O-O 9. Nde2 Nc6 10. h3 Bd7
1968 URS Team Ch – Round ? – Shianovsky, Vladislav I – 1/2-1/2 – Kogan, Boris – G4 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 g6 7. Bg2 Bg7 8. O-O O-O 9. Nd5 Nbd7 10. c4 Ne5
1969 FRG Team Ch – Round 1.3 – Ellrich, Paul – 1/2-1/2 – Lehmann, Heinz – G2 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 g6 7. Bg2 Bg7 8. O-O Bg4 9. Qd3 Qd7 10. f4 Nc6
20. European Teams 2015 – Round 4.3 – Naiditsch, Arkadij – 1-0 – Esen Baatarsukh – G172 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 g6 7. Bg2 Bg7 8. O-O O-O 9. h3 Nc6 10. Be3 Bd7
7. London Classic 2015 – Round 7.2 – Adams, Michael – 1/2-1/2 – Grischuk, Alexander – G32 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 g6 7. Bg2 Bg7 8. O-O O-O 9. h3 Nc6 10. Be3 Bd7
9. London Classic 2017 – Round 4.4 – Nakamura, Hikaru – 1/2-1/2 – Nepomniachtchi, Ian – G19 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 g6 7. Bg2 Bg7 8. O-O O-O 9. b3 Bd7 10. Bb2 Nc6
World Blitz 2019 – Round 1.53 – Quparadze, Giga – 1-0 – Yilmaz, Mustafa – G47 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 g6 7. Bg2 Bg7 8. O-O O-O 9. a4 Nc6 10. Nde2 Rb8
World Blitz 2019 – Round 7.1 – Abdusattorov, Nodirbek – 0-1 – Artemiev, Vladislav – G454 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 g6 7. Bg2 Bg7 8. O-O O-O 9. h3 Nc6 10. Nde2 Rb8
World Blitz 2023 – Round 16.7 – Yu, Yangyi – 1-0 – Svidler, Peter – G947 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 g6 7. Bg2 Bg7 8. h3 O-O 9. O-O Nc6 10. Be3 Bd7

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