A33f — English: Symmetrical, Two Knights, 5.Nc3 Nc6 6.a3 Bc5

1.c4 c5 2.Nf3 Nf6 3.d4 cxd4 4.Nxd4 e6 5.Nc3 Nc6 6.a3 Bc5 * ○ Trait aux Blancs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plans. Nb3 (83 % des parties) ; e3 (Libérer Bf1, préparer Bd3 — 12 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plans. ...Be7 (Fou actif (mobilité 5) — 54 % des parties) ; ...Bb6 (29 % des parties) ; ...O-O (Mettre le roi en sécurité, connecter les tours — 10 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● b2→a3	● d7→e6, f7→e6
Passés	—	—
Majorité	● aile dame 3v2	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● b5 (3v0)	● d4 (2v1)
Cases faibles	—	—
Centre	—	● d4 (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. 0)
Bc5		● Bc5 Actif (mob. 7)
Bc8		● Bc8 Non développé (mob. 0)
Paire de fous	● Oui	● Oui
Non développées	4 (● c1, ● f1, ● a1, ● h1)	3 (● c8, ● 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
2026 Tata Steel Chess Masters - Round 9.6 - Erigaisi Arjun - 1/2-1/2 - Niemann, Hans Moke - G62 1. Nf3 Nf6 2. c4 c5 3. Nc3 Nc6 4. d4 cxd4 5. Nxd4 e6 6. a3 Bc5 7. Nb3 Bb6 8. Bf4 d5 9. c5 Bc7 10. Bxc7 Qxc7
3. Norway Blitz 2015 – Round 6.2 – Nakamura, Hikaru – 1-0 – Caruana, Fabiano – G27 1. Nf3 Nf6 2. c4 c5 3. Nc3 Nc6 4. d4 cxd4 5. Nxd4 e6 6. a3 Bc5 7. Nb3 Be7 8. e4 O-O 9. Be2 b6 10. O-O Ba6
4. London Chess Classic 2012 – Round 6.2 – Carlsen, Magnus – 1-0 – Polgar, Judit – G17 1. c4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. a3 Bc5 7. Nb3 Be7 8. e4 O-O 9. Be2 b6 10. O-O Bb7
41. Olympiad Open 2014 – Round 1.24 – Gaealafshwe, Barileng – 1/2-1/2 – Banikas, Hristos – G39 1. Nf3 c5 2. c4 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. a3 Bc5 7. Nb3 Be7 8. e4 O-O 9. Be3 b6 10. Be2 Ba6
42. Olympiad 2016 – Round 3.17 – Navara, David – 1-0 – Kasimdzhanov, Rustam – G188 1. c4 c5 2. Nf3 Nf6 3. Nc3 Nc6 4. d4 cxd4 5. Nxd4 e6 6. a3 Bc5 7. Nb3 Bb6 8. Bf4 d5 9. c5 Bc7 10. Bxc7 Qxc7
42. Olympiad 2016 – Round 8.1 – Karjakin, Sergey – 1/2-1/2 – Caruana, Fabiano – G533 1. c4 c5 2. Nf3 Nf6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 e6 6. a3 Bc5 7. Nb3 Bb6 8. c5 Bc7 9. g3 O-O 10. Bg2 b6
51. Biel GM 2018 – Round 9.2 – Navara, David – 1/2-1/2 – Svidler, Peter – G26 1. Nf3 Nf6 2. c4 c5 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 e6 6. a3 Bc5 7. Nb3 Bb6 8. c5 Bc7 9. Bg5 h6 10. Bh4 O-O
74. Tata Steel GMA 2012 – Round 3 – Van Wely, Loek – 1/2-1/2 – Gashimov, Vugar – G21 1. Nf3 c5 2. c4 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. a3 Bc5 7. Nb3 Be7 8. e4 O-O 9. Be2 b6 10. O-O Bb7
80. Tata Steel GpA 2018 – Round 11.6 – Matlakov, Maxim – 1/2-1/2 – Svidler, Peter – G67 1. c4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. a3 Bc5 7. Nb3 Bb6 8. c5 Bc7 9. g3 O-O 10. Bg2 b6
80. Tata Steel GpA 2018 – Round 6.5 – Adhiban, B. – 0-1 – Mamedyarov, Shakhriyar – G36 1. c4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. a3 Bc5 7. Be3 Nxd4 8. Bxd4 b6 9. e4 Bb7 10. b4 Be7
FIDE World Cup 2015 – Round 3.2 – Kovalyov, Anton – 1/2-1/2 – Caruana, Fabiano – G331 1. c4 c5 2. Nf3 Nf6 3. Nc3 Nc6 4. d4 cxd4 5. Nxd4 e6 6. a3 Bc5 7. Nb3 Bb6 8. e4 d5 9. exd5 exd5 10. c5 Bc7
FIDE World Cup 2017 – Round 2.3 – Navara, David – 1-0 – Cheparinov, Ivan – G252 1. c4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. a3 Bc5 7. Nb3 Bb6 8. c5 Bc7 9. g3 O-O 10. Bg2 b6
FIDE World Cup 2025 – Round R5 Classical 1 – Donchenko Alexander – 1/2-1/2 – Le Quang Liem – G606 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Bc5 5. c3 O-O 6. O-O d6 7. b4 Bb6 8. a4 a5 9. b5 Ne7 10. Nbd2 Ng6
FIDE World Cup 2025 – Round R5 Rapid 1 – Sam Shankland – 1-0 – Daniil Dubov – G619 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O Qc7 7. Qe2 a6 8. dxc5 Bxc5 9. a3 b5 10. Bd3 Bb7
GCT Blitz Croatia 2021 – Round 13.5 – Nepomniachtchi, Ian – 1/2-1/2 – Vachier-Lagrave, Maxime – G65 1. c4 c5 2. Nf3 Nf6 3. Nc3 Nc6 4. d4 cxd4 5. Nxd4 e6 6. a3 Bc5 7. Nb3 Be7 8. e4 O-O 9. Be2 b6 10. O-O Bb7
GCT Blitz Croatia 2021 – Round 5.1 – Nepomniachtchi, Ian – 1-0 – Anand, Viswanathan – G21 1. c4 c5 2. Nf3 Nf6 3. Nc3 Nc6 4. d4 cxd4 5. Nxd4 e6 6. a3 Bc5 7. Nb3 Bb6 8. c5 Bc7 9. g3 d5 10. cxd6 Qxd6
GCT Blitz Paris 2021 – Round 12.3 – So, Wesley – 1-0 – Vachier-Lagrave, Maxime – G56 1. Nf3 c5 2. c4 Nf6 3. Nc3 Nc6 4. d4 cxd4 5. Nxd4 e6 6. a3 Bc5 7. Nb3 Be7 8. e4 O-O 9. Be2 b6 10. O-O Bb7
Manila Interzonal 1990 – Round 4 – Stohl, Igor – 0-1 – Khalifman, Alexander – G72 1. Nf3 c5 2. c4 Nf6 3. Nc3 Nc6 4. d4 cxd4 5. Nxd4 e6 6. a3 Bc5 7. Nb3 Be7 8. Bg5 h6 9. Bh4 O-O 10. e3 b6
Manila Interzonal 1990 – Round 7 – Korchnoi, Viktor – 1-0 – Lautier, Joel – G113 1. c4 c5 2. Nf3 Nf6 3. Nc3 Nc6 4. d4 cxd4 5. Nxd4 e6 6. a3 Bc5 7. Nb3 Be7 8. e4 O-O 9. Be2 b6 10. f4 d6
Norway Supreme Masters Blitz 2013 – Round 4.4 – Nakamura, Hikaru – 1-0 – Anand, Viswanathan – G19 1. c4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. a3 Bc5 7. Nb3 Be7 8. g3 b6 9. Bg2 Ba6 10. Nd2 Rc8
PCA/Intel-GP 1995 – Round 3 – Kramnik, Vladimir – 1/2-1/2 – Lautier, Joel – G23 1. Nf3 c5 2. c4 Nc6 3. d4 cxd4 4. Nxd4 e6 5. Nc3 Nf6 6. a3 Bc5 7. e3 O-O 8. Be2 d5 9. cxd5 exd5 10. O-O Bd6
SportAccord Blitz 2014 – Round 27.5 – Ivanchuk, Vasyl – 1/2-1/2 – Bacrot, Etienne – G212 1. c4 c5 2. Nf3 Nf6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 e6 6. a3 Bc5 7. Nf3 O-O 8. b4 Be7 9. Bb2 d6 10. e3 e5
Superbet Blitz 2022 – Round 16.5 – Korobov, Anton – 1-0 – Duda, Jacob – G80 1. c4 Nf6 2. Nc3 c5 3. Nf3 Nc6 4. d4 cxd4 5. Nxd4 e6 6. a3 Bc5 7. Nb3 Bb6 8. c5 Bc7 9. g3 O-O 10. Bg2 b6
Vugar Gashimov Mem 2014 – Round 1.2 – Nakamura, Hikaru – 1/2-1/2 – Caruana, Fabiano – G2 1. Nf3 Nf6 2. c4 c5 3. Nc3 Nc6 4. d4 cxd4 5. Nxd4 e6 6. a3 Bc5 7. Nb3 Be7 8. e4 O-O 9. Be2 b6 10. O-O Ba6
World Blitz 2016 – Round 7.31 – Mchedlishvili, Mikheil – 1-0 – Jumabayev, Rinat – G281 1. c4 Nf6 2. Nc3 e6 3. Nf3 c5 4. d4 cxd4 5. Nxd4 Nc6 6. a3 Bc5 7. Nb3 Be7 8. e4 b6 9. Be2 O-O 10. Bf4 Bb7
World Blitz 2022 – Round 8.29 – Jumabayev, Rinat – 1-0 – Saini Vidit – G412 1. Nf3 Nf6 2. c4 c5 3. Nc3 Nc6 4. d4 cxd4 5. Nxd4 e6 6. a3 Bc5 7. Nb3 Be7 8. e4 O-O 9. Bf4 d6 10. Be2 b6
World Blitz Final 2012 – Round 9 – Jumabayev, Rinat – 0-1 – Grischuk, Alexander – G70 1. Nf3 c5 2. c4 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. a3 Bc5 7. Nb3 Be7 8. e4 O-O 9. Be2 b6 10. Bf4 d6
World Rapid 2016 – Round 5.38 – Mareco, Sandro – 0-1 – Halkias, Stelios – G196 1. Nf3 c5 2. c4 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. a3 Bc5 7. Nb3 Be7 8. e4 d6 9. Be2 O-O 10. O-O b6
World Rapid 2016 – Round 8.12 – Wojtaszek, Radoslaw – 0-1 – Vidit, Santosh Gujrathi – G292 1. Nf3 c5 2. c4 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. a3 Bc5 7. Nb3 Bb6 8. c5 Bc7 9. g3 O-O 10. Bg2 b6

A33f — Symmetrical, Two Knights (1990)

1.c4 c5 2.Nf3 Nf6 3.d4 cxd4 4.Nxd4 e6 5.Nc3 Nc6 6.a3 Bc5

Les coups candidats

7.Nb3 — 83.4% (572 parties)

Ambassadeurs : Pogorelov, Ruslan (12x), Navara, David (6x), Bacrot, Etienne (6x), Krasenkow, Michal (6x), Bakheet Farag (5x), Stohl, Igor (4x), Cramling, Pia (4x), Kudr, Roman (4x)

7.e3 — 11.8% (81 parties)

Ambassadeurs : Llanos, Guillermo (3x), Kramnik, Vladimir (2x), Lautier, Joel (2x), Kotsur, Pavel (2x), Borchert, Eckhardt (1x), Niering, Thorsten (1x), Nemtzev, Igor (1x), Pedersen, Geir (1x)

7.Ndb5 — 1.9% (13 parties)

Ambassadeurs : Aymard, Michel (1x), Faure, Stephane (1x), Varga, Zoltan (1x), Kovacs, Gabor (1x), Lushenkov, Mikhail (1x), Maletin, Pavel (1x), Brestak, Jan (1x), Pacsay, Laszlo (1x)

7.Nxc6 — 1.0% (7 parties)

Ambassadeurs : Kublashvili, Etery (1x), Kaniak, Monika (1x), Lada, Ireneusz (1x), Sharapov, Yevhen (1x), Mosnegutu, Klauss (1x), Szabo, Gergely-Andras-Gyula (1x), Csajbok, Levente Tamas (1x), Hegedus, Dominik (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	7.Nb3	7.e3	7.Ndb5	7.Nxc6
<1800	15	67%	13%	—	20%
1800-2200	124	80%	15%	2%	2%
2200-2600	457	84%	12%	2%	0%
2600+	70	90%	6%	—	—

Évolution par décennie (% des parties)

Décennie	N parties	7.Nb3	7.e3	7.Ndb5	7.Nxc6
1980s	2	50%	50%	—	—
1990s	82	82%	16%	1%	—
2000s	135	78%	15%	4%	1%
2010s	321	84%	11%	2%	2%
2020s	146	89%	8%	1%	—

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
7.Nb3	84%	89%	▲ +5.2%
7.e3	11%	8%	▼ -3.7%
7.Ndb5	2%	1%	-0.2%
7.Nxc6	2%	0%	▼ -1.6%

Joueurs célèbres

Champions du monde dans cette position

Ju, Wenjun — 4 parties
Anand, Viswanathan — 3 parties
Kramnik, Vladimir — 2 parties
Hou, Yifan — 2 parties
Carlsen, Magnus — 1 partie

Parties historiques

7.Nb3 — 83.4% (572 parties)

1989 — Hansen, Lars Bo vs Hansen, Curt — 1/2-1/2 — Vejstrup DEN
1990 — Dorfman, Iossif vs Hansen, Curt — 1/2-1/2 — Debrecen HUN
1990 — Stohl, Igor vs Khalifman, Alexander — 0-1 — Manila PHI
1990 — Danailov, Silvio vs Wohl, Aleksandar H — 1-0 — ?
1990 — Stohl, Igor vs Horvath, Jozsef — 1/2-1/2 — Stary Smokovec SVK

7.e3 — 11.8% (81 parties)

1987 — Borchert, Eckhardt vs Niering, Thorsten — 0-1 — Dortmund open
1995 — Olsen, Heini vs Vinter-Schou, Uffe — 0-1 — Copenhagen DEN
1995 — Kramnik, Vladimir vs Lautier, Joel — 1/2-1/2 — Parijs rapid
1995 — Kramnik, Vladimir vs Lautier, Joel — 1/2-1/2 — Intel Chess Grand Pr
1996 — Pedersen, Geir vs Berntsen, Frode — 0-1 — Norway

7.Ndb5 — 1.9% (13 parties)

1998 — Aymard, Michel vs Faure, Stephane — 1-0 — ?
2001 — Varga, Zoltan vs Kovacs, Gabor — 1/2-1/2 — Hotel Lippa GM
2004 — Lushenkov, Mikhail vs Maletin, Pavel — 0-1 — Ufa
2004 — Brestak, Jan vs Pacsay, Laszlo — 1/2-1/2 — HUN
2008 — Zubarev, Alexander vs Banikas, Hristos — 1/2-1/2 — Athens GRE

7.Nxc6 — 1.0% (7 parties)

2003 — Kublashvili, Etery vs Kaniak, Monika — 1-0 — Budva MNE
2008 — Lada, Ireneusz vs Sharapov, Yevhen — 0-1 — Chojnice
2012 — Mosnegutu, Klauss vs Szabo, Gergely-Andras-Gyula — 0-1 — Sarata Monteoru ROU
2015 — Csajbok, Levente Tamas vs Hegedus, Dominik — 0-1 — Balatonlelle HUN
2016 — Chekletsova, Darya vs Stojkovic, Zoran — 0-1 — Paracin

Fin du contenu

Aucune page supplémentaire à charger

Articles plus anciens →