Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	● a7
Arriérés	—	● d7
Chaînes	—	● d7→c6, d7→e6, f7→e6
Passés	—	—
Majorité	● aile dame 3v2	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● g5 (2v0)	● b4 (2v0), ● d5 (2v1)
Cases faibles	—	● d6
Centre	● d4 (1v0)	● d5 (2v1), ● e5 (1v0)

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● d	● b

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Bf1	● Bf1 Non développé (mob. 5)
Bc8		● Bc8 Non développé (mob. 2)
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	fermé
Ruptures	—	● …d7-d6, ● …f7-f6

B45n — Sicilian: Taimanov, Four Knights, 6.Nxc6 bxc6 7.e5 Nd5 8.Ne4 Qc7

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Nf6 6.Nxc6 bxc6 7.e5 Nd5 8.Ne4 Qc7 * ○ Trait aux Blancs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plans. f4 (Attaque à l'aile roi — 99 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plans. ...Qb6 (Prépare O-O-O — 72 % des parties) ; ...Qa5+ (Contrôle diagonale a5-e1, Prépare O-O-O — 11 % des parties) ; ...Rb8 (Tour sur colonne semi-ouverte b — 7 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Partie
? 1998 – Round ? – Fedorov, Alexeiei – 0-1 – Khalifman, Alexander – G63 1. e4 c5 2. Nf3 Nc6 3. Nc3 e6 4. d4 cxd4 5. Nxd4 Nf6 6. Nxc6 bxc6 7. e5 Nd5 8. Ne4 Qc7 9. f4 Qa5+ 10. Bd2 Qb6
1902 Monte Carlo Monte Carlo MNC – Round 21 – Reggio, Arturo – 0-1 – Mieses, Jacques – G24 1. e4 c5 2. d4 e6 3. Nc3 Nc6 4. Nf3 cxd4 5. Nxd4 Nf6 6. Nxc6 bxc6 7. e5 Nd5 8. Ne4 Qc7 9. f4 f5 10. exf6 Nxf6
1903 It (Men) Monte Carlo MNC – Round 15 – Reggio, Arturo – 0-1 – Marchand, Max – G71 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Nxc6 bxc6 7. e5 Nd5 8. Ne4 Qc7 9. f4 f5 10. exf6 Nxf6
1925 Bratislava-A – Round 11 – Fazekas, Stephan – 0-1 – Walter Ilatoma, Jonatan Israel David – G16 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Nxc6 bxc6 7. e5 Nd5 8. Ne4 Qc7 9. f4 f5 10. Nd6+ Bxd6
1947 GER Ch 11th – Round 5 – Unzicker, Wolfgang – 1-0 – Lehmitz, Guenther – G6 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Nxc6 bxc6 7. e5 Nd5 8. Ne4 Qc7 9. f4 f5 10. exf6 Nxf6
1952 POL-ch10 – Round 16 – Szukszta, Janus – 0-1 – Makarczyk, Kazimierz – G120 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e6 5. Nc3 Nf6 6. Nxc6 bxc6 7. e5 Nd5 8. Ne4 Qc7 9. f4 Qb6 10. Bd3 Ba6
1953 GER Ch 15th – Round 5 – Koch, Berthold – 1-0 – Fuchs, Reinhart – G12 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Nxc6 bxc6 7. e5 Nd5 8. Ne4 Qc7 9. f4 Qb6 10. Bd3 Ba6
1954 DDR Ch 05th – Round 1 – Kunze, Klaus – 1/2-1/2 – Fuchs, Reinhart – G5 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Nxc6 bxc6 7. e5 Nd5 8. Ne4 Qc7 9. f4 Qb6 10. c3 Ne3
1955 Hoogovens – Round 8 – Pilnik, Herman – 0-1 – Bergsma, Klaas – G37 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Nxc6 bxc6 7. e5 Nd5 8. Ne4 Qc7 9. f4 Qb6 10. Bd3 Bb7
1958 Danmarksmesterskabet – Round 9 – Poulsen, Christian – 1-0 – Hansen, Victor Juul – G31 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Nxc6 bxc6 7. e5 Nd5 8. Ne4 Qc7 9. f4 Qb6 10. Bd3 Ba6
1960 Nimzowitsch Memorial – Round ? – Pietzsch, Wolfgang – 1-0 – Orbaan, Constant – G17 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Nxc6 bxc6 7. e5 Nd5 8. Ne4 Qc7 9. f4 f5 10. exf6 Nxf6
1960 WchT U26 07th – Round 1 – Szabo, Iuliu inactive – 1-0 – Tabor, Jozsef – G1 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Nxc6 bxc6 7. e5 Nd5 8. Ne4 Qc7 9. f4 Qb6 10. Bd3 Ba6
1961 GDR Ch Premnitz GER – Round 3 – Pietzsch, Wolfgang – 1-0 – Weber, Bernd, Dr. – G13 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Nxc6 bxc6 7. e5 Nd5 8. Ne4 Qc7 9. f4 f5 10. exf6 Nxf6
3. Kings' Tournament 2009 – Round 4 – Ivanchuk, Vasyl – 1/2-1/2 – Radjabov, Teimour – G11 1. e4 c5 2. Nf3 Nc6 3. Nc3 e6 4. d4 cxd4 5. Nxd4 Nf6 6. Nxc6 bxc6 7. e5 Nd5 8. Ne4 Qc7 9. f4 Qb6 10. c4 Ne3
36. Olympiad 2004 – Round 8 – Gashimov, Vugar – 0-1 – Shabalov, Alexander – G282 1. e4 c5 2. Nf3 Nc6 3. Nc3 e6 4. d4 cxd4 5. Nxd4 Nf6 6. Nxc6 bxc6 7. e5 Nd5 8. Ne4 Qc7 9. f4 Qb6 10. c4 Bb4+
43. Olympiad 2018 – Round 2.3 – Bacrot, Etienne – 1-0 – Roselli Mailhe, Bernardo – G124 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Nxc6 bxc6 7. e5 Nd5 8. Ne4 Qc7 9. f4 Qb6 10. c4 Bb4+
74. Tata Steel GMA 2012 – Round 11 – Gashimov, Vugar – 0-1 – Radjabov, Teimour – G74 1. e4 c5 2. Nc3 e6 3. Nf3 Nc6 4. d4 cxd4 5. Nxd4 Nf6 6. Nxc6 bxc6 7. e5 Nd5 8. Ne4 Qc7 9. f4 Qa5+ 10. c3 Be7
Brussels blitz 1987 – Round 1 – Huebner, Robert – 1/2-1/2 – Van der Wiel, John T.H. – G63 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Nxc6 bxc6 7. e5 Nd5 8. Ne4 Qc7 9. f4 Qb6 10. c4 Ne3
FIDE Grand Swiss 2025 – Round 10 – Mishra Abhimanyu – 1/2-1/2 – Vachier-Lagrave Maxime – G527 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Nxc6 bxc6 7. e5 Nd5 8. Ne4 Qc7 9. f4 Qb6 10. c4 Bb4+
FIDE Grand Swiss 2025 – Round 6 – Shankland Sam – 1/2-1/2 – Lagarde Maxime – G319 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Nxc6 bxc6 7. e5 Nd5 8. Ne4 Qc7 9. f4 Qb6 10. c4 Bb4+
FIDE World Cup 2015 – Round 3.1 – Karjakin, Sergey – 1-0 – Yu, Yangyi – G325 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Nf6 6. Nxc6 bxc6 7. e5 Nd5 8. Ne4 Qc7 9. f4 Qb6 10. c4 Bb4+
Hoogovens 1985 – Round 1 – Timman, Jan H – 1-0 – Lobron, Eric – G2 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Nf6 6. Nxc6 bxc6 7. e5 Nd5 8. Ne4 Qc7 9. f4 Qb6 10. c4 Ne3
It 2003 – Round 4 – Naiditsch, Arkadij – 1-0 – Radjabov, Teimour – G8 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Nxc6 bxc6 7. e5 Nd5 8. Ne4 Qc7 9. f4 Rb8 10. Bd3 Qb6
Jerusalem FIDE Grand Prix 2019 – Round 1.2 – Jakovenko, Dmitry – 1/2-1/2 – Mamedyarov, Shakhriyar – G11 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Nxc6 bxc6 7. e5 Nd5 8. Ne4 Qc7 9. f4 Qb6 10. c4 Bb4+
Linares 1992 – Round 10 – Kasparov, Garry – 1-0 – Illescas Cordoba, Miguel – G40 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Nf6 6. Nxc6 bxc6 7. e5 Nd5 8. Ne4 Qc7 9. f4 Qb6 10. c4 Ne3
Lindores Abbey Tal Memorial 2021 – Round 1.10 – Ponomariov, Ruslan – 1-0 – Abasov, Nijat – G2 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Nxc6 bxc6 7. e5 Nd5 8. Ne4 Qc7 9. f4 Qb6 10. c4 Bb4+
Luzern olm 1982 – Round 12 – Tringov, Georgi P – 1/2-1/2 – Huebner, Robert – G55 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Nxc6 bxc6 7. e5 Nd5 8. Ne4 Qc7 9. f4 Qb6 10. c4 Ne3
Masters 2000 – Round 2 – Adams, Michael – 1/2-1/2 – Ivanchuk, Vasyl – G8 1. e4 c5 2. Nc3 e6 3. Nf3 Nc6 4. d4 cxd4 5. Nxd4 Nf6 6. Nxc6 bxc6 7. e5 Nd5 8. Ne4 Qc7 9. f4 Qb6 10. c4 Bb4+
Saint Louis Rapid and Blitz 2025 – Round 7 – Aronian Levon – 1-0 – Sam Shankland – G31 1. e4 c5 2. Nc3 Nc6 3. Nf3 e6 4. d4 cxd4 5. Nxd4 Nf6 6. Nxc6 bxc6 7. e5 Nd5 8. Ne4 Qc7 9. f4 Qb6 10. a3 Ne3
Superbet Classic 2022 – Round 4.3 – Firouzja, Alireza – 1/2-1/2 – Rapport, Richard – G18 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Nf6 6. Nxc6 bxc6 7. e5 Nd5 8. Ne4 Qc7 9. f4 Qb6 10. c4 Bb4+
Tata Steel India Rapid 2019 – Round 9.3 – Anand, Viswanathan – 1/2-1/2 – Harikrishna, Pentala – G43 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Nxc6 bxc6 7. e5 Nd5 8. Ne4 Qc7 9. f4 Qb6 10. a3 f5
World Blitz 2023 – Round 17.24 – Suleymanli, Aydin – 0-1 – Riazantsev, Alexander – G970 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Nxc6 bxc6 7. e5 Nd5 8. Ne4 Qc7 9. f4 a5 10. c4 Bb4+
World Rapid 2019 – Round 14.32 – Najer, Evgeniy – 0-1 – Dreev, Aleksey – G904 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Nxc6 bxc6 7. e5 Nd5 8. Ne4 Qc7 9. f4 Qb6 10. c4 Bb4+
World Rapid 2021 – Round 12.53 – Sjugirov, Sanan – 1-0 – Bellahcene, Bilel – G724 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Nxc6 bxc6 7. e5 Nd5 8. Ne4 Qc7 9. f4 Qb6 10. Bd3 Be7
World Rapid 2021 – Round 2.17 – Alekseenko, Kirill – 1-0 – Bellahcene, Bilel – G76 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Nxc6 bxc6 7. e5 Nd5 8. Ne4 Qc7 9. f4 Qb6 10. a3 Ne3

B45n — Taimanov, Four Knights (1902)

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Nf6 6.Nxc6 bxc6 7.e5 Nd5 8.Ne4 Qc7

Les coups candidats

9.f4 — 99.0% (4239 parties)

Ambassadeurs : Troia, Elio (30x), Kruk, Sergey Valentinovich (19x), Van Riemsdijk, Herman C. (17x), Durand, Jean-philippe (15x), Vukic, Milan (13x), Rogozenco, Dorian (13x), Suárez Rodríguez, Juan Alberto (12x), Bellahcene, Bilel (12x)

9.Nd6+ — 0.5% (21 parties)

Ambassadeurs : Kunze, Klaus (1x), Rosen, Willy (1x), Dahms, Peter (1x), Peterwitz, Klaus (1x), Vitolinsh, Alvis (1x), Giorgadze, Tamaz (1x), Stepic, Josip (1x), Pecnik, Leo (1x)

9.Qh5 — 0.2% (10 parties)

Ambassadeurs : Svedenborg, Paul (2x), Husz, Krisztian (1x), Zabiak, Norbert (1x), Wisloff-Nilssen, Sven (1x), Royset, Pal (1x), Svoboda, Svatopluk (1x), Eberth, Zoltan Bela (1x), Najafi, Farhad (1x)

9.c4 — 0.1% (5 parties)

Ambassadeurs : Pedroso, Denian (2x), Hegedus, Gyorgy (1x), Wersching, Guenter (1x), Rapaka Samuel Paul (1x), Plante, Marc Eric (1x), Zamsha, Denis (1x), Chumak, Vadim (1x), Martins, Anderson Donay (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	9.f4	9.Nd6+	9.Qh5	9.c4
<1800	281	99%	0%	0%	1%
1800-2200	1697	99%	0%	0%	0%
2200-2600	1877	100%	0%	0%	—
2600+	107	100%	—	—	—

Évolution par décennie (% des parties)

Décennie	N parties	9.f4	9.Nd6+	9.Qh5	9.c4
1950s	12	92%	8%	—	—
1960s	6	100%	—	—	—
1970s	31	97%	3%	—	—
1980s	184	99%	1%	—	—
1990s	436	98%	1%	1%	0%
2000s	974	99%	1%	0%	0%
2010s	1136	99%	1%	0%	0%
2020s	1502	100%	0%	0%	—

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
9.f4	99%	100%	▲ +0.8%
9.Nd6+	1%	0%	-0.5%
9.Qh5	0%	0%	-0.2%
9.c4	0%	0%	-0.3%

Joueurs célèbres

Champions du monde dans cette position

Kasparov, Garry — 4 parties
Hou, Yifan — 4 parties
Kramnik, Vladimir — 2 parties
Carlsen, Magnus — 2 parties
Karpov, Anatoly — 1 partie
Anand, Viswanathan — 1 partie
Gukesh D — 1 partie

Parties historiques

9.f4 — 99.0% (4239 parties)

1951 — Malich, Burkhard, Dr. vs Fuchs, Reinhart — 1-0 — Leipzig GER
1952 — Szukszta, Janus vs Makarczyk, Kazimierz — 0-1 — Katowice POL
1952 — Leiva, Juan Carlos vs Juarez, Carlos Eleodoro — 0-1 — Buenos Aires ARG
1953 — Koch, Berthold vs Fuchs, Reinhart — 1-0 — Leipzig GER
1954 — Kunze, Klaus vs Fuchs, Reinhart — 1/2-1/2 — Meerane

9.Nd6+ — 0.5% (21 parties)

1951 — Kunze, Klaus vs Rosen, Willy — 0-1 — Leipzig GER
1979 — Vitolinsh, Alvis vs Giorgadze, Tamaz — 1-0 — Soviet Union
1989 — Dahms, Peter vs Peterwitz, Klaus — 0-1 — Landes-Einzelmeister
1990 — Petersen, Ole vs Kollwitz, Andreas — 0-1 — ?
1993 — Garcia Luque, Agustin vs San Segundo Carrillo, Pablo — 1/2-1/2 — Espana equipos

9.Qh5 — 0.2% (10 parties)

1992 — Svedenborg, Paul vs Wisloff-Nilssen, Sven — 1-0 — ?
1994 — Najafi, Farhad vs Shokoohi, H. — 0-1 — Iran
1998 — Svoboda, Svatopluk vs Eberth, Zoltan Bela — 1-0 — Miskolc
1999 — Husz, Krisztian vs Zabiak, Norbert — 0-1 — Miskolc
1999 — Svedenborg, Paul vs Royset, Pal — 1-0 — Norway

9.c4 — 0.1% (5 parties)

1996 — Hegedus, Gyorgy vs Wersching, Guenter — 0-1 — ?
2004 — Rapaka Samuel Paul vs Plante, Marc Eric — 1/2-1/2 — ?
2012 — Zamsha, Denis vs Chumak, Vadim — 1-0 — Krasnodar RUS
2016 — Pedroso, Denian vs Martins, Anderson Donay — 0-1 — Porto Alegre
2018 — Ribeiro, Luiz Felipe Roballo vs Pedroso, Denian — 0-1 — Porto Alegre

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