A28j — English: Four Knights, Romanishin Variation

1.c4 e5 2.Nc3 Nc6 3.Nf3 Nf6 4.e3 Bb4 5.Qc2 Bxc3 * ○ Trait aux Blancs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plans. Qxc3 (Centraliser la dame, Prépare O-O-O — 72 % des parties) ; bxc3 (Capture en c3, Renforcer le centre — 27 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plans. ...Qe7 (Pression sur colonne e, Prépare O-O-O — 68 % des parties) ; ...O-O (Mettre le roi en sécurité, connecter les tours — 12 % des parties) ; ...d6 (Libérer Bc8 — 12 % des parties) ; ...e4 (Occuper le centre — 8 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● d2→e3, f2→e3	—
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	—	● b4 (2v0)
Cases faibles	—	—
Centre	—	● d4 (3v2), ● e5 (2v1)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 0)
Bf1	● Bf1 Non développé (mob. 2)
Bc3		● Bc3 Actif (mob. 5)
Bc8		● Bc8 Non développé (mob. 0)
Paire de fous	● Oui	● Oui
Clouages	● pawn d2	—
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	● d2-d4	● …d7-d5

Partie
1965 Chigorin Memorial – Round 4 – Antoshin, Vladimir S – 1/2-1/2 – Flohr, Salo – G16 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3 6. Qxc3 Qe7 7. a3 a5 8. d3 d5 9. cxd5 Nxd5 10. Qc2 a4
1975 URS Team Ch – Round 1 – Smyslov, Vassily – 1/2-1/2 – Gipslis, Aivars – G16 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3 6. Qxc3 Qe7 7. Be2 O-O 8. O-O e4 9. Ne1 d5 10. b3 Rd8
3. ACP World Rapid Cup 2009 – Round 4.4 – Svidler, Peter – 0-1 – Gelfand, Boris – G43 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3 6. Qxc3 Qe7 7. a3 d5 8. cxd5 Nxd5 9. Qb3 Nb6 10. d3 O-O
34. ECC Open 2018 – Round 4.3 – Wang, Hao(ZJWZ) – 0-1 – Nemeth, Miklos – G124 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3 6. bxc3 O-O 7. d3 d6 8. Be2 a6 9. a4 Re8 10. e4 Ne7
43. Olympiad 2018 – Round 11.1 – Caruana, Fabiano – 1/2-1/2 – Ding, Liren – G695 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3 6. Qxc3 Qe7 7. d4 Ne4 8. Qd3 exd4 9. Nxd4 O-O 10. Be2 Qb4+
43. Olympiad 2018 – Round 9.1 – Duda, Jan-Krzysztof – 1/2-1/2 – Caruana, Fabiano – G559 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3 6. Qxc3 Qe7 7. d4 Ne4 8. Qd3 exd4 9. Nxd4 O-O 10. Be2 Qb4+
51. Biel GM 2018 – Round 5.2 – Svidler, Peter – 1/2-1/2 – Navara, David – G14 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3 6. Qxc3 Qe7 7. b3 d5 8. d4 exd4 9. Nxd4 Nxd4 10. Qxd4 c5
6. Norway Chess 2018 – Round 5.2 – Caruana, Fabiano – 1-0 – Karjakin, Sergey – G21 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3 6. Qxc3 Qe7 7. b3 O-O 8. Bb2 Re8 9. a3 a5 10. h3 b6
6. Sinquefield Cup 2018 – Round 4.5 – So, Wesley – 1/2-1/2 – Karjakin, Sergey – G20 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3 6. Qxc3 Qe7 7. d4 Ne4 8. Qd3 exd4 9. Nxd4 O-O 10. Be2 Qb4+
63. ch-USA 2019 – Round 11.4 – So, Wesley – 0-1 – Liang, Awonder – G64 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3 6. Qxc3 Qe7 7. d4 e4 8. Ng1 d5 9. b3 O-O 10. Ne2 a5
7. Norway Armageddon 2019 – Round 5.4 – Ding, Liren – 1/2-1/2 – Aronian, Levon – G17 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3 6. bxc3 O-O 7. d3 d6 8. Be2 e4 9. dxe4 Re8 10. Nd2 Ng4
7. Norway Chess 2019 – Round 3.4 – Mamedyarov, Shakhriyar – 0-1 – Aronian, Levon – G13 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3 6. Qxc3 Qe7 7. d4 Ne4 8. Qd3 exd4 9. Nxd4 O-O 10. Be2 Nxd4
Amber Blindfold 2000 – Round 8 – Van Wely, Loek – 1/2-1/2 – Gelfand, Boris – G31 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3 6. Qxc3 e4 7. Nd4 O-O 8. Nxc6 bxc6 9. b3 a5 10. Bb2 c5
Corus A 2006 – Round 13 – Ivanchuk, Vasyl – 1-0 – Karjakin, Sergey – G79 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3 6. Qxc3 Qe7 7. a3 d5 8. d4 exd4 9. Nxd4 Nxd4 10. Qxd4 c5
Cote d'Ivoire Blitz 2019 – Round 18.5 – Ding, Liren – 1-0 – Karjakin, Sergey – G89 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3 6. bxc3 O-O 7. d3 d6 8. Be2 Ne8 9. O-O f5 10. c5 d5
FIDE Grand Swiss 2025 – Round 11 – Giri Anish – 1-0 – Niemann Hans Moke – G582 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3 6. Qxc3 Qe7 7. a3 d5 8. d4 exd4 9. Nxd4 Nxd4 10. Qxd4 c5
FIDE Grand Swiss 2025 – Round 2 – Chigaev Maksim – 1/2-1/2 – Aronian Levon – G70 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3 6. Qxc3 Qe7 7. a3 d5 8. d4 exd4 9. Nxd4 Nxd4 10. Qxd4 Be6
FIDE Grand Swiss 2025 – Round 4 – Olisa Tennyson Ewomazino – 0-1 – Sjugirov Sanan – G232 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3 6. Qxc3 Qe7 7. d3 d5 8. cxd5 Nxd5 9. Qc2 Ndb4 10. Qc3 Nd4
FIDE WCh KO 2000 – Round 2.2 – Onischuk, Alexanderexander – 1/2-1/2 – Shirov, Alexei – G63 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3 6. Qxc3 Qe7 7. a3 d5 8. d4 exd4 9. Nxd4 Nxd4 10. Qxd4 c5
FIDE WCh KO 2000 – Round 2.4 – Onischuk, Alexanderexander – 1/2-1/2 – Shirov, Alexei – G79 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3 6. Qxc3 Qe7 7. a3 d5 8. d4 exd4 9. Nxd4 Nxd4 10. Qxd4 O-O
FIDE WCh KO 2001 – Round 1.1 – Xu, Jun(SD) – 1-0 – Atalik, Suat – G2 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3 6. Qxc3 Qe7 7. a3 d5 8. cxd5 Nxd5 9. Qb3 Nb6 10. d3 Bf5
FIDE World Blitz Championship 2025 – Round 18 – Keymer Vincent – 0-1 – Nepomniachtchi Ian – G350 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3 6. Qxc3 Qe7 7. a3 d5 8. d4 exd4 9. Nxd4 Nxd4 10. Qxd4 c5
FIDE World Blitz Championship 2025 – Round 18 – Maxim Matlakov – 1-0 – Alexander Grischuk – G352 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Bg5 dxc4 6. e4 c5 7. dxc5 Qa5 8. Bd2 Qxc5 9. Qa4+ Bd7 10. Qxc4 Na6
FIDE World Cup 2017 – Round 1.2 – Howell, David W L – 1/2-1/2 – Aditya Tari – G66 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3 6. Qxc3 Qe7 7. Be2 d5 8. d4 exd4 9. Nxd4 Nxd4 10. Qxd4 c5
FIDE World Cup 2017 – Round 1.4 – Howell, David W L – 1/2-1/2 – Aditya Tari – G149 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3 6. Qxc3 Qe7 7. Be2 d5 8. d4 exd4 9. Nxd4 Nxd4 10. Qxd4 c5
FIDE World Cup 2017 – Round 3.1 – Aronian, Levon – 1-0 – Matlakov, Maxim – G316 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3 6. bxc3 O-O 7. d3 d6 8. Be2 Re8 9. e4 Ne7 10. Nh4 Ng6
FIDE World Cup 2019 – Round 3.3 – Wang, Hao(ZJWZ) – 1-0 – Dominguez Perez, Leinier – G329 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3 6. Qxc3 Qe7 7. d4 e4 8. Ng1 d5 9. h3 O-O 10. Bd2 a5
FIDE World Cup 2019 – Round 3.5 – Wang, Hao(ZJWZ) – 1-0 – Dominguez Perez, Leinier – G346 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3 6. Qxc3 Qe7 7. d4 e4 8. Ng1 d5 9. h3 O-O 10. Bd2 Qd8
FIDE World Cup 2019 – Round 4.5 – Le, Quang Liem – 0-1 – Aronian, Levon – G387 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3 6. bxc3 O-O 7. d3 d6 8. Be2 Ne8 9. O-O f5 10. Ne1 Nf6
FIDE World Cup 2025 – Round R1 Rapid 1 – Tin Jingyao – 1-0 – Lashkin Jegor – G161 1. d4 Nf6 2. Nf3 e6 3. e3 d5 4. Bd3 Be7 5. O-O O-O 6. b3 b6 7. Bb2 Bb7 8. Nbd2 Ne4 9. c4 Nxd2 10. Qxd2 Nd7
GCT Blitz Paris 2019 – Round 11.2 – Duda, Jacob – 1-0 – Nepomniachtchi, Ian – G52 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3 6. Qxc3 Qe7 7. d4 Ne4 8. Qd3 exd4 9. Nxd4 O-O 10. Be2 Qb4+
GCT Blitz YourNextMove 2018 – Round 16.1 – Vachier-Lagrave, Maxime – 1-0 – Karjakin, Sergey – G76 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3 6. Qxc3 Qe7 7. Be2 O-O 8. O-O e4 9. Nd4 Nxd4 10. Qxd4 c5
GCT Rapid Paris 2018 – Round 9.1 – Vachier-Lagrave, Maxime – 1-0 – Aronian, Levon – G41 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3 6. Qxc3 Qe7 7. Be2 d5 8. d4 exd4 9. Nxd4 Nxd4 10. Qxd4 c5
Hoogovens 1996 – Round 3 – Van Wely, Loek – 0-1 – Piket, Jeroen – G11 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3 6. Qxc3 Qe7 7. a3 a5 8. b3 O-O 9. Bb2 Re8 10. d3 d5
Linares 1983 – Round 1 – Seirawan, Yasser – 1/2-1/2 – Timman, Jan H – G3 1. c4 e5 2. Nc3 Nf6 3. e3 Nc6 4. Nf3 Bb4 5. Qc2 Bxc3 6. Qxc3 Qe7 7. a3 d5 8. d4 exd4 9. Nxd4 Nxd4 10. Qxd4 c5
Masters 2000 – Round 12 – Van Wely, Loek – 1-0 – Rublevsky, Sergei – G42 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3 6. Qxc3 Qe7 7. a3 d5 8. cxd5 Nxd5 9. Qb3 Nb6 10. d3 a5
Moscow FIDE Grand Prix 2019 – Round 1.2 – Mamedyarov, Shakhriyar – 1/2-1/2 – Wojtaszek, Radoslaw – G10 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3 6. Qxc3 Qe7 7. d4 exd4 8. Nxd4 Nxd4 9. Qxd4 c5 10. Qh4 d5
Palma De Mallorca GP 2017 – Round 9.4 – Harikrishna, Pentala – 1/2-1/2 – Svidler, Peter – G76 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3 6. bxc3 O-O 7. Be2 d6 8. d3 Qe7 9. e4 Ne8 10. Ba3 b6
Saint Louis Blitz 2019 – Round 4.1 – Caruana, Fabiano – 1/2-1/2 – Aronian, Levon – G16 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3 6. Qxc3 Qe7 7. a3 d5 8. b4 d4 9. Qc2 Bg4 10. b5 Nd8
Saint Louis Blitz 2021 – Round 15.2 – Xiong, Jeffery – 1/2-1/2 – So, Wesley – G68 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3 6. Qxc3 Qe7 7. Be2 d5 8. d4 exd4 9. Nxd4 Nxd4 10. Qxd4 c5
Saint Louis Blitz 2023 – Round 14.1 – Caruana, Fabiano – 1-0 – Nepomniachtchi, Ian – G66 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3 6. bxc3 e4 7. Ng5 Qe7 8. f3 d6 9. Nxe4 Nxe4 10. Qxe4 Qxe4
Saint Louis Blitz 2024 - Round 11 - Nepomniachtchi Ian - 0-1 - Praggnanandhaa R - G51 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3 6. Qxc3 Qe7 7. a3 a5 8. b4 d6 9. b5 Nb8 10. Bb2 O-O
Saint Louis Rapid 2023 – Round 5.3 – Caruana, Fabiano – 1/2-1/2 – Robson, Ray – G23 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3 6. bxc3 O-O 7. e4 d6 8. g3 a6 9. a4 Rb8 10. Bg2 Be6
Saint Louis Rapid 2024 - Round 4 - Nepomniachtchi Ian - 1/2-1/2 - So Wesley - G17 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3 6. Qxc3 Qe7 7. a3 d5 8. d4 exd4 9. Nxd4 Nxd4 10. Qxd4 c5
Smyslov Region Group Cup 2021 – Round 5.10 – Ponkratov, Pavel – 0-1 – Sarana, Alexey – G44 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3 6. Qxc3 Qe7 7. d3 O-O 8. a3 d5 9. cxd5 Nxd5 10. Qc2 f5
SportAccord Rapid Men 2013 – Round 5.3 – Wang, Yue(SH) – 1/2-1/2 – Nepomniachtchi, Ian – G35 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3 6. Qxc3 Qe7 7. d3 a5 8. Be2 O-O 9. O-O d5 10. cxd5 Nxd5
Superbet Classic 2021 – Round 3.5 – Lupulescu, Constantin – 1-0 – Giri, Anish – G13 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3 6. Qxc3 Qe7 7. d4 Ne4 8. Qd3 exd4 9. Nxd4 Nc5 10. Qd1 Nxd4
Tata Steel India Blitz 2018 – Round 15.3 – So, Wesley – 1/2-1/2 – Aronian, Levon – G73 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3 6. Qxc3 Qe7 7. d4 Ne4 8. Qd3 exd4 9. Nxd4 O-O 10. Be2 Qb4+
Tata Steel India Blitz 2018 – Round 18.5 – So, Wesley – 1/2-1/2 – Karjakin, Sergey – G90 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3 6. Qxc3 Qe7 7. b3 d5 8. d4 Ne4 9. Qb2 Be6 10. Be2 Qb4+
Tata Steel India Blitz 2018 – Round 5.5 – So, Wesley – 1-0 – Harikrishna, Pentala – G25 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3 6. bxc3 O-O 7. e4 d6 8. g3 Kh8 9. d3 Ng8 10. Nh4 Nge7
Tata Steel India Blitz 2022 – Round 12.5 – Maghsoodloo, Parham – 0-1 – Praggnanandhaa R – G57 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3 6. bxc3 O-O 7. Be2 d6 8. e4 Ne8 9. d4 h6 10. O-O f5
Tata Steel Masters 2024 - Round 11 - Ding, Liren - 1/2-1/2 - Van Foreest, Jorden 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3 6. bxc3 e4 7. Ng5 Qe7 8. f3 d6 9. Nxe4 Nxe4 10. Qxe4 Qxe4
Turin ol (Men) 37th 2006 – Round 6 – Lenic, Luka – 1-0 – Kizov, Atanas – G74 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3 6. Qxc3 Qe7 7. d3 d5 8. cxd5 Nxd5 9. Qb3 Nb6 10. Bd2 O-O
Vugar Gashimov Mem 2018 – Round 7.3 – Carlsen, Magnus – 1-0 – Topalov, Veselin – G33 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3 6. bxc3 d6 7. e4 O-O 8. g3 Ne8 9. Nh4 Ne7 10. d3 f5
WCh 2023 – Round 4.1 – Ding, Liren – 1-0 – Nepomniachtchi, Ian – G4 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3 6. bxc3 d6 7. e4 O-O 8. Be2 Nh5 9. d4 Nf4 10. Bxf4 exf4
World Blitz 2018 – Round 11.24 – Kovalenko, Igor – 1/2-1/2 – Sarana, Alexey – G644 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3 6. Qxc3 Qe7 7. b3 d5 8. cxd5 Nxd5 9. Qb2 O-O 10. Bc4 Nb6
World Blitz 2018 – Round 15.36 – Van Foreest, Jorden – 1-0 – Jumabayev, Rinat – G895 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3 6. bxc3 O-O 7. d3 d6 8. g3 Bg4 9. Bg2 Qc8 10. h3 Bd7
World Blitz 2018 – Round 4.49 – Inarkiev, Ernesto – 1-0 – Zakhartsov, Vladimir – G243 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3 6. Qxc3 Qe7 7. Be2 O-O 8. d4 exd4 9. Nxd4 Ne4 10. Qd3 Qb4+
World Blitz 2018 – Round 7.10 – Kovalenko, Igor – 1/2-1/2 – Karjakin, Sergey – G393 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3 6. Qxc3 Qe7 7. b3 d5 8. cxd5 Nxd5 9. Qb2 O-O 10. Bc4 Nb6
World Blitz 2019 – Round 8.81 – Harsha Bharathakoti – 0-1 – Sasikiran, Krishnan – G584 1. c4 e5 2. Nc3 Nc6 3. e3 Nf6 4. Nf3 Bb4 5. Qc2 Bxc3 6. bxc3 O-O 7. e4 d6 8. g3 a6 9. a4 Ne8 10. Nh4 Ne7
World Blitz 2021 – Round 15.31 – Ivic, Velimir – 1-0 – Niemann, Hans Moke – G885 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3 6. bxc3 e4 7. Ng5 d5 8. Rb1 Ne7 9. cxd5 Qxd5 10. Rb5 c5
World Blitz 2022 – Round 12.43 – Suleymanli, Aydin – 1-0 – Andriasian, Zaven – G644 1. c4 e5 2. Nc3 Nc6 3. Nf3 Bb4 4. Qc2 Nf6 5. e3 Bxc3 6. bxc3 O-O 7. e4 d6 8. Be2 Kh8 9. g3 Bh3 10. d3 h6
World Blitz 2023 – Round 13.18 – Korobov, Anton – 1/2-1/2 – Giri, Anish – G737 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3 6. Qxc3 Qe7 7. d4 e4 8. Nd2 d5 9. b3 a5 10. Be2 h5
World Blitz 2023 – Round 16.42 – Yakubboev, Nodirbek – 1/2-1/2 – Gurel, Ediz – G929 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3 6. bxc3 O-O 7. e4 d6 8. g3 Be6 9. d3 h6 10. Nh4 Qd7
World Blitz 2023 – Round 20.50 – Garayev, Kanan – 0-1 – Aditya Tari – G1158 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3 6. bxc3 O-O 7. d3 d6 8. e4 h6 9. g3 Be6 10. Bg2 Nd7
World Rapid 2019 – Round 3.20 – Duda, Jacob – 1-0 – Sarana, Alexey – G164 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3 6. Qxc3 Qe7 7. d4 exd4 8. Nxd4 Ne4 9. Qd3 O-O 10. Be2 Nxd4

A28j — Four Knights, Romanishin Variation (1965)

1.c4 e5 2.Nc3 Nc6 3.Nf3 Nf6 4.e3 Bb4 5.Qc2 Bxc3

Les coups candidats

6.Qxc3 — 72.0% (2028 parties)

Ambassadeurs : Akguney, Hasim (17x), Moujan, Pablo Miguel (15x), Tsenkov, Ljubomir (14x), Bishop, William (11x), Lunek, Ferry A (11x), Vötter, Hans-Dieter (10x), Romanishin, Oleg M (9x), Pilgram, Kurt (8x)

6.bxc3 — 27.4% (773 parties)

Ambassadeurs : Jørgensen, Brian Jørgen (19x), Esin, Maxim (16x), Suba, Mihai (14x), Arancibia Guzmán, Eduardo (11x), Bishop, Nicholas (9x), Löschnauer, Rüdiger (8x), Bishop, William (7x), Truyens, Aime (7x)

6.dxc3 — 0.6% (17 parties)

Ambassadeurs : Koolsbergen, Nico (2x), Thurlow, Kevin J (2x), Aarush Hirendra Naik Parulekar (1x), Sykora, Josef (1x), Powell, Lisa (1x), Richard, Andy (1x), Blahacek, Evzen (1x), Krstevska, Mare (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	6.Qxc3	6.bxc3	6.dxc3
<1800	114	75%	23%	2%
1800-2200	840	68%	31%	1%
2200-2600	1493	73%	26%	0%
2600+	162	71%	29%	—

Évolution par décennie (% des parties)

Décennie	N parties	6.Qxc3	6.bxc3	6.dxc3
1960s	3	33%	67%	—
1970s	47	89%	11%	—
1980s	154	91%	8%	1%
1990s	193	88%	11%	1%
2000s	355	82%	16%	2%
2010s	1264	63%	36%	0%
2020s	802	73%	27%	0%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
6.Qxc3	63%	73%	▲ +9.9%
6.bxc3	36%	27%	▼ -9.9%
6.dxc3	0%	0%	+0.1%

Joueurs célèbres

Champions du monde dans cette position

Ding, Liren — 6 parties
Karpov, Anatoly — 2 parties
Carlsen, Magnus — 2 parties
Tal, Mikhail — 1 partie
Anand, Viswanathan — 1 partie
Hou, Yifan — 1 partie
Ju, Wenjun — 1 partie

Parties historiques

6.Qxc3 — 72.0% (2028 parties)

1961 — Abanin, Vladimir vs Flohr, Salo — 1/2-1/2 — Sochi RUS
1974 — Polugaevsky, Lev vs Matanovic, Anto — 1/2-1/2 — Belgrade SRB
1975 — Haas, Georges vs Kiffmeyer, Constanz — 1/2-1/2 — Ostende
1975 — Smyslov, Vasily vs Gipslis, Aivars — 1/2-1/2 — Riga LAT
1976 — Miles, Anthony J vs Bisguier, Arthur B — 1-0 — Hastings ENG

6.bxc3 — 27.4% (773 parties)

1965 — Poder Walter vs Preo, Nicolas A — 0-1 — ?
1965 — Poder, William vs Preo, Nicolas A — 0-1 — CCOL5 fin 6568
1976 — Suba, Mihai vs Timoscenko, Gennadij — 0-1 — Polanica Zdroj POL
1977 — From, Sigfred vs Holst, Per — 1-0 — ?
1977 — From, Sigfred vs Skovgaard, Ib — 0-1 — Denmark ch corr

6.dxc3 — 0.6% (17 parties)

1982 — Aarush Hirendra Naik Parulekar vs Sykora, Josef — 1/2-1/2 — CZE-ch1 corr8284
1992 — Blahacek, Evzen vs Krstevska, Mare — 0-1 — corr ch-CSSR
1997 — Powell, Lisa vs Richard, Andy — 1-0 — IECC
2000 — Miller, Roger vs Dijksman, Leo — 0-1 — IECC
2002 — Koolsbergen, Nico vs Denayer, William — 0-1 — IECC

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