B45g — Sicilian: Taimanov, Four Knights, 6.g3

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Nf6 6.g3 * ● Trait aux Noirs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plans. Bg2 (Fianchetto, fou sur la grande diagonale — 71 % des parties) ; Nb3 (10 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

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Plans. ...Bb4 (Clouer c3, Fou actif (mobilité 7), Développer f8 — 40 % des parties) ; ...d5 (Occuper le centre — 24 % des parties) ; ...d6 (Libérer Bc8 — 13 % des parties) ; ...Qb6 (Prépare O-O-O — 9 % des parties) ; ...a6 (Préparer expansion aile dame — 6 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● f2→g3, h2→g3	● d7→e6, f7→e6
Passés	—	—
Majorité	● aile dame 3v2	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● f4 (2v0), ● b5 (3v0)	● b4 (2v0)
Cases faibles	—	—
Centre	—	● 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. 0)
Bf8		● Bf8 Non développé (mob. 5)
Paire de fous	● Oui	● Oui
Non développées	4 (● c1, ● f1, ● a1, ● h1)	4 (● 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	mobile
Ruptures	—	● …d7-d5

Partie
1902 DSB-13.Kongress – Round 8 – Wolf, Hans-Josef – 1-0 – Mieses, Jacques – G36 1. e4 c5 2. Nf3 e6 3. Nc3 Nc6 4. d4 cxd4 5. Nxd4 Nf6 6. g3 d5 7. Bg2 dxe4 8. Nxc6 Qxd1+ 9. Kxd1 bxc6 10. Nxe4 Nxe4
1903 It (Men) Monte Carlo MNC – Round 3 – Marchand, Max – 1-0 – Marchand, Max – G14 1. e4 c5 2. Nf3 e6 3. Nc3 Nc6 4. d4 cxd4 5. Nxd4 Nf6 6. g3 d5 7. Bg2 dxe4 8. Nxc6 Qxd1+ 9. Kxd1 bxc6 10. Nxe4 Nxe4
1903 It (Men) Monte Carlo MNC – Round 8 – Wolf, Hans-Josef – 1-0 – Moreau, Chloe – G36 1. e4 c5 2. Nf3 e6 3. Nc3 Nc6 4. d4 cxd4 5. Nxd4 Nf6 6. g3 Bc5 7. Be3 Qb6 8. Na4 Qa5+ 9. c3 Bxd4 10. Bxd4 Nxd4
1912 DSB-18.Kongress – Round 10 – Przepiorka, Dawid – 0-1 – Tarrasch, Siegbert – G77 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. g3 Be7 7. Bg2 O-O 8. O-O a6 9. Bf4 Qb6 10. Nb3 d6
1927 Bremen – Round 2 – Schoenmann, Wilhelm – 1/2-1/2 – Krueger, Paul – G7 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. g3 Bb4 7. Bg2 d5 8. exd5 Nxd5 9. Nxc6 bxc6 10. Qd4 O-O
1927 Kecskemet f I – Round 5 – Steiner, Laszlo – 1/2-1/2 – Gilg, Karl – G7 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e6 5. Nc3 Nf6 6. g3 Bb4 7. Bg2 O-O 8. O-O a6 9. Be3 Qc7 10. Na4 b5
1927 Moskou ch-URS – Round 6 – Perfiliev, Albert P. – 1-0 – Makogonov, Vladimir – G16 1. e4 c5 2. d4 cxd4 3. Nf3 e6 4. Nxd4 Nf6 5. Nc3 Nc6 6. g3 Bb4 7. Bg2 d5 8. exd5 Nxd5 9. O-O Nxc3 10. bxc3 Bxc3
1946 USA Ch New York, NY USA – Round 1 – Suesman, Walter B – 1/2-1/2 – Denker, Arnold S – G40 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. g3 d5 7. Bg2 dxe4 8. Nxc6 Qxd1+ 9. Kxd1 bxc6 10. Nxe4 Nxe4
1947 Hilversum zt – Round 13 – Alexander Ronald Cheng – 1-0 – O'Sullivan, Bartholomew – G34 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. g3 Bb4 7. Bg2 Qa5 8. O-O Nxd4 9. Qxd4 Bxc3 10. bxc3 O-O
1949 Mar del Plata – Round 6 – Czerniak, Magdalena – 1-0 – Corte, Cesar J – G61 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. g3 Bb4 7. Bg2 O-O 8. O-O a6 9. Be3 Ne5 10. Nde2 Qc7
1949 US Open – Round 5 – Bisguier, Arthur B – 1-0 – Rutsson, Kjartan Berg – G9 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. g3 Bb4 7. Bg2 d5 8. exd5 Nxd5 9. O-O O-O 10. Nxd5 exd5
1950 Interzonal – Round 14 – Ivkov, Borislav – 1-0 – Pilnik, Herman – G26 1. e4 c5 2. Nc3 e6 3. Nf3 Nc6 4. d4 cxd4 5. Nxd4 Nf6 6. g3 Bb4 7. Bg2 d5 8. exd5 Nxd5 9. O-O Bxc3 10. Nxc6 bxc6
1950 Szcawno Zdroj – Round ? – Pogats, Jozsef Jr. – 0-1 – Foltys, Jan – G11 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. g3 Bb4 7. Bg2 d5 8. exd5 Nxd5 9. O-O Nxc3 10. bxc3 Bxc3
1951 Bucharest GMT 2nd – Round 13 – Szabo, Stefan – 1/2-1/2 – Makarczyk, Kazimierz – G53 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. g3 Bb4 7. Bg2 d5 8. O-O Bxc3 9. bxc3 Nxe4 10. Nxc6 bxc6
1952 Helsinki olm – Round 1 – Kaila, Osmo – 1-0 – Plater, Kazimierz – G201 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. g3 d5 7. Bg2 dxe4 8. Nxc6 Qxd1+ 9. Kxd1 bxc6 10. Nxe4 Nxe4
1956 Moskou olm – Round 1 – Noradounghian, Georges – 0-1 – Muhring, J. – G56 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. g3 Bb4 7. Bg2 d5 8. exd5 Nxd5 9. Nxc6 bxc6 10. O-O O-O
1957 Sombor – Round 1 – Djurasevic, Bozidar – 1-0 – Kozomara, Vlado – G23 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. g3 Bb4 7. Bg2 d5 8. exd5 Nxd5 9. O-O O-O 10. Nxd5 exd5
1957 USA Ch Open 58th – Round 9 – Bisguier, Arthur B – 1-0 – Marchand, Erich W – G65 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. g3 Bb4 7. Bg2 d5 8. exd5 Nxd5 9. O-O Nxc3 10. bxc3 Bxc3
1959 Buenos Aires – Round 1 – Palermo, Vicente – 1/2-1/2 – Bolbochan, J. – G11 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. g3 Bb4 7. Bg2 d5 8. exd5 Nxd5 9. Nxc6 bxc6 10. O-O O-O
1962 IBM – Round 3 – Kieninger, Georg – 1-0 – Armoon Tan, Hooman – G21 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. g3 Be7 7. Bg2 Nxd4 8. Qxd4 d6 9. O-O O-O 10. Rd1 e5
1964 Budapest ch-HUN – Round 1 – Pogats, Jozsef Jr. – 0-1 – Bilek, Istvan – G105 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. g3 Qb6 7. Nb3 Bb4 8. Bg2 Qa6 9. Bd2 O-O 10. a3 Be7
1964 Tel Aviv olm fin-B – Round 10 – Ujtumen, Tudev – 1/2-1/2 – Kottnauer, Cenek – G33 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e6 5. Nc3 Nf6 6. g3 Bb4 7. Bg2 O-O 8. O-O a6 9. a3 Bxc3 10. bxc3 Qc7
1965 Hamburg etc – Round 1 – Pogats, Jozsef Jr. – 1/2-1/2 – Lein, Anatoly – G28 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. g3 Bb4 7. Bg2 d5 8. exd5 Nxd5 9. O-O Bxc3 10. Nxc6 bxc6
1966 Asztalos Memorial 9th – Round 12 – Barczay, Laszlo – 1/2-1/2 – Navarovszky, Laszlo – G65 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. g3 Bb4 7. Bg2 d5 8. exd5 Nxd5 9. O-O Nxc3 10. bxc3 Bxc3
1968 Copenhagen ch-DEN – Round 1 – Iversen, Ralph Kock – 1-0 – Moe, Mogens – G22 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. g3 Bb4 7. Bg2 O-O 8. O-O d6 9. Nde2 a6 10. h3 Bc5
1968 HUN-JUG – Round 1 – Ostojic, Predrag – 1/2-1/2 – Tompa, Janos – G5 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. g3 Bb4 7. Bg2 d5 8. exd5 Nxd5 9. O-O Nxc3 10. bxc3 Bxc3
1969 WchT U26 fin-B 16th – Round 5.1 – Gelfer, Israel – 1-0 – Tompa, Janos – G27 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. g3 Bb4 7. Bg2 d5 8. exd5 Nxd5 9. O-O Nxc3 10. Nxc6 Nxd1
1970 Vinkovci – Round 8 – Bertok, Mario – 1/2-1/2 – Minic, Dragoljub – G74 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Nf6 6. g3 Bb4 7. Bg2 d5 8. exd5 Nxd5 9. O-O Bxc3 10. Nxc6 bxc6
41. Olympiad Open 2014 – Round 1.1 – Svidler, Peter – 1-0 – Samhouri, Bilal – G3 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. g3 Bb4 7. Bg2 d5 8. exd5 exd5 9. O-O O-O 10. Bg5 Be7
World Blitz 2019 – Round 19.19 – Nepomniachtchi, Ian – 1-0 – Grachev, Boris – G1266 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. g3 Bb4 7. Bg2 O-O 8. O-O d6 9. Nde2 a6 10. h3 Bc5
World Blitz 2019 – Round 5.83 – Guseinov, Gadir – 1-0 – Tregubov, Pavel V. – G374 1. e4 c5 2. Nc3 e6 3. Nf3 Nc6 4. d4 cxd4 5. Nxd4 Nf6 6. g3 d5 7. exd5 exd5 8. Bg2 Bg4 9. Qd3 Bc5 10. Be3 Nxd4
World Blitz 2021 – Round 9.70 – Dragnev, Valentin – 0-1 – Narayanan, Sunilduth Lyna – G561 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. g3 Bb4 7. Bg2 O-O 8. O-O d6 9. Na4 e5 10. Nf5 d5

B45g — Taimanov, Four Knights (1902)

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Nf6 6.g3

Les coups candidats

6…Bb4 — 40.3% (593 parties)

Ambassadeurs : Bousios, Hristos (5x), Vlahovic, Svetozar (3x), Pogats, Jozsef Jr. (2x), Bolbochan, Jacobo (2x), Tsarouhas, Vasilios (2x), Luett, Michael (2x), Brajovic, Radovan (2x), Marinkovic, Slavisa (2x)

6…d5 — 23.7% (349 parties)

Ambassadeurs : Van Riemsdijk, Herman C. (5x), Kagan, Shimon (4x), Arnason, Jon L (4x), Federl, Alan (4x), Sveshnikov, Evgeny (4x), Mestel, A Jonathan (3x), Schreiner, Richard (3x), Karklins, Andrew (3x)

6…d6 — 13.0% (191 parties) →

Ambassadeurs : Vukic, Milan (6x), Timoshenko, Georgy (5x), Stein, Bernd (4x), Barczay, Laszlo (3x), Horvath, Tamas (3x), Medvegy, Nora Dr. (3x), Maltsevskaya, Aleksandra (3x), Gayson, Peter M (2x)

6…Qb6 — 8.6% (126 parties)

Ambassadeurs : Atlas, Valery (4x), Barczay, Laszlo (3x), Nunn, John D M (3x), Delgado Crespo, Mairelys (3x), Heidenfeld, Mark (2x), Marinkovic, Ivan (2x), Kosanski, Stanko (2x), Sermek, Drazen (2x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	6…Bb4	6…d5	6…d6	6…Qb6
<1800	50	56%	20%	12%	4%
1800-2200	562	51%	19%	9%	6%
2200-2600	678	28%	29%	16%	12%
2600+	19	47%	26%	11%	—

Évolution par décennie (% des parties)

Décennie	N parties	6…Bb4	6…d5	6…d6	6…Qb6
1950s	26	58%	19%	15%	—
1960s	32	47%	9%	9%	3%
1970s	89	35%	38%	11%	3%
1980s	125	26%	36%	27%	2%
1990s	289	31%	22%	17%	11%
2000s	366	41%	22%	11%	14%
2010s	314	50%	20%	9%	6%
2020s	230	44%	24%	10%	7%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
6…Bb4	50%	44%	▼ -5.3%
6…d5	20%	24%	▲ +4.3%
6…d6	9%	10%	▲ +1.1%
6…Qb6	6%	7%	▲ +1.0%

Joueurs célèbres

Champions du monde dans cette position

Anand, Viswanathan — 2 parties
Carlsen, Magnus — 1 partie

Parties historiques

6…Bb4 — 40.3% (593 parties)

1950 — Alexander Tadala vs Kan, Ilya A — 1-0 — Leningrad RUS
1950 — Ivkov, Borislav vs Pilnik, Herman — 1-0 — Bled SLO
1950 — Pogats, Jozsef Jr. vs Foltys, Jan — 0-1 — Szcawno Zdroj
1950 — Paffley, D. vs Dotson, Christian Tyler — 1-0 — England
1951 — Szabo, Stefan vs Makarczyk, Kazimierz — 1/2-1/2 — Bucharest ROU

6…d5 — 23.7% (349 parties)

1952 — Al Osaimi, Kaiid Ahmad vs Partyka, Kazimierz — 1-0 — Helsinki olm
1954 — Ignatieva, Olga vs Bondarenko, Filipp Semenovich — 1-0 — Riga LAT
1956 — Dueckstein, Andreas vs Lindblom, Peter — 1-0 — Moskou olm
1957 — Ravn, Palle vs Hage, Poul — 1-0 — Odense DEN
1959 — Nezhmetdinov, Rashid vs Stoliar, Efim Samoilovich — 1-0 — Voronezh RUS

6…d6 — 13.0% (191 parties)

1954 — Pogats, Jozsef Jr. vs Navarovszky, Laszlo — 1/2-1/2 — Hungary ch
1956 — Partyka, Kazimierz vs Lindblom, Peter — 0-1 — Moskou olm
1957 — Filchev, Rusko vs Prakhov, Valentin Asenov — 1-0 — Sofia BUL
1957 — Milic, Borislav vs Jezek, Jaroslav — 1/2-1/2 — Wenen etc
1963 — Harald, Olav vs Aaltio, Erkki — 1/2-1/2 — Finland ch corr

6…Qb6 — 8.6% (126 parties)

1964 — Pogats, Jozsef Jr. vs Bak, Istvan — 0-1 — Budapest ch-HUN
1976 — Cuasnicu, Oscar vs Van Riemsdijk, Herman C. — 1/2-1/2 — Mar del Plata ARG
1977 — Barczay, Laszlo vs Sax, Gyula — 0-1 — Budapest ch-HUN
1979 — Barczay, Laszlo vs Horvath, Tamas — 1/2-1/2 — Zalaegerszeg
1980 — Barczay, Laszlo vs Bielczyk, Jacek — 1/2-1/2 — Polanica Zdroj POL

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