A05r — Reti: KIA, Reti-Smyslov Variation

1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 5.Bb2 * ● Trait aux Noirs

Ouverture — Centre semi-ouvert

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plan principal. Attaque sur le roi adverse resté au centre.

Atouts. Les Blancs s'appuient sur les cases fortes d4 et e5, un fou actif en b2 et la paire de fous.

Côté adverse. Les fous enfermés en g7 et c8 et le roi resté au centre.

En contrepartie. Le roi n'est pas encore à l'abri et plusieurs pièces dorment encore (le cavalier b1, le fou f1 et les tours a1 et h1).

Plans. e4 (Centre d4+e4, menace e5, libère Bf1) ; h3 (Empêcher ...Bg4) ; c3 (Préparer d4).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plan principal. Attaque sur le roi adverse resté au centre.

Atouts. Les Noirs s'appuient sur la paire de fous.

Côté adverse. Le fou enfermé en f1 et le roi resté au centre.

En contrepartie. Le roi n'est pas encore à l'abri et plusieurs pièces dorment encore (le cavalier b8, le fou c8 et les tours a8 et h8).

Plans. O-O (Mettre le roi en sécurité, connecter les tours) ; ...d6 (Libérer Bc8) ; ...Nc6 (Développer Nb8) ; ...c5 (Rupture) ; ...d5 (Rupture).

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● f2→g3, h2→g3	● f7→g6, h7→g6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● d4 (2v0), ● e5 (2v0)	—
Cases faibles	—	—
Centre	● d4 (2v0), ● e5 (2v0)	● d5 (1v0), ● e4 (1v0)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bf1	● Bf1 Non développé (mob. 2)
Bb2	● Bb2 Actif (mob. 6)
Bg7		● Bg7 Enfermé (mob. 2)
Bc8		● Bc8 Non développé (mob. 0)
Paire de fous	● Oui	● Oui
Non développées	4 (● b1, ● f1, ● a1, ● h1)	4 (● b8, ● 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	semi-ouvert
Ruptures	● c2-c3, ● d2-d3, ● e2-e3	● …c7-c6, ● …c7-c5, ● …d7-d6, ● …d7-d5, ● …e7-e6, ● …e7-e5

Partie
1936 Podebrady – Round ? – Skalicka, Karel – 0-1 – Frydman, Paulino – G147 1. Nf3 Nf6 2. b4 g6 3. Bb2 Bg7 4. g3 O-O 5. Bg2 d6 6. d4 c6 7. c4 a5 8. b5 cxb5 9. cxb5 a4 10. Na3 Bd7
1952 Stevenson Memorial 4th – Round 10 – Fazekas, Stephan – 1-0 – Spears, Michael J A – G18 1. Nf3 Nf6 2. g3 g6 3. b4 Bg7 4. Bb2 O-O 5. c4 d5 6. cxd5 Nxd5 7. Bxg7 Kxg7 8. Qb3 Qd6 9. Qb2+ f6 10. a3 e5
1961 Dortmund – Round 1 – Smyslov, Vladimir – 1-0 – Pietzsch, Wolfgang – G38 1. Nf3 Nf6 2. g3 g6 3. b4 Bg7 4. Bb2 O-O 5. Bg2 a5 6. b5 c5 7. c4 b6 8. d3 d5 9. cxd5 Nxd5 10. Bxg7 Kxg7
1961 Moskou ZShK – Round 2 – Smyslov, Vasily – 1-0 – Gufeld, Eduard – G12 1. Nf3 Nf6 2. g3 g6 3. b4 Bg7 4. Bb2 O-O 5. Bg2 d6 6. c4 e5 7. O-O Re8 8. d3 a5 9. a3 axb4 10. axb4 Rxa1
1961 Oberhausen etc – Round 2 – Smyslov, Vladimir – 1-0 – Matulovic, Milan – G79 1. Nf3 Nf6 2. g3 g6 3. b4 Bg7 4. Bb2 O-O 5. Bg2 d6 6. O-O e5 7. d3 Nh5 8. e4 f5 9. exf5 Bxf5 10. Nbd2 Qd7
1961 ROM Ch – Round 19 – Urseanu, Veniamin – 0-1 – Ciocaltea, Victor – G127 1. Nf3 Nf6 2. g3 g6 3. b4 Bg7 4. Bb2 O-O 5. Bg2 d6 6. O-O e5 7. d3 Ne8 8. Ne1 Nd7 9. c4 f5 10. f4 Nef6
1961 Warsaw – Round 1 – Lengyel, Laszlo – 0-1 – Brzozka, Stefan – G76 1. Nf3 Nf6 2. g3 g6 3. b4 Bg7 4. Bb2 d6 5. Bg2 e5 6. d3 O-O 7. O-O Nh5 8. Nfd2 f5 9. c4 Nc6 10. b5 Nd4
1962 Hastings6263 – Round 5 – Smyslov, Vladimir – 1/2-1/2 – Littlewood, John E – G24 1. Nf3 Nf6 2. g3 g6 3. b4 Bg7 4. Bb2 O-O 5. Bg2 d6 6. O-O a5 7. b5 a4 8. d4 c6 9. c4 cxb5 10. cxb5 Nbd7
1962 URS Team Ch – Round 1 – Smyslov, Vladimir – 1/2-1/2 – Boleslavsky, Isaac – G134 1. Nf3 Nf6 2. g3 g6 3. b4 Bg7 4. Bb2 O-O 5. Bg2 d6 6. O-O e5 7. c4 Re8 8. d3 e4 9. dxe4 Nxe4 10. Bxg7 Kxg7
1963 CSR Ch – Round 2 – Filip, Miroslav – 1/2-1/2 – Vesely, Jiri – G18 1. Nf3 Nf6 2. g3 g6 3. b4 Bg7 4. Bb2 O-O 5. Bg2 d5 6. O-O a5 7. b5 Ne8 8. Bxg7 Kxg7 9. Qc1 f6 10. Na3 Nd6
1963 Miskolc Asztalos Memorial – Round 5 – Barczay, Laszlo – 1-0 – Brzozka, Stefan – G7 1. Nf3 Nf6 2. g3 g6 3. b4 Bg7 4. Bb2 O-O 5. Bg2 d6 6. O-O e5 7. c4 Nh5 8. d4 Nc6 9. b5 Nxd4 10. Nxd4 exd4
1964 Amsterdam Interzonal – Round 4 – Smyslov, Vladimir – 1/2-1/2 – Bronstein, David I – G38 1. Nf3 Nf6 2. g3 g6 3. b4 Bg7 4. Bb2 c6 5. Bg2 a5 6. a3 axb4 7. axb4 Rxa1 8. Bxa1 Qb6 9. c3 O-O 10. O-O d5
1964 Capablanca Memorial – Round 10 – Smyslov, Vladimir – 1-0 – Jimenez Zerquera, Eleazar – G104 1. Nf3 Nf6 2. g3 g6 3. b4 Bg7 4. Bb2 O-O 5. Bg2 d6 6. O-O e5 7. c4 a5 8. a3 axb4 9. axb4 Rxa1 10. Bxa1 Nc6
1964 Tel Aviv olm – Round 1 – Malich, Burkhard, Dr. – 1/2-1/2 – Sumar, Julio – G133 1. Nf3 Nf6 2. g3 g6 3. b4 Bg7 4. Bb2 d6 5. Bg2 c6 6. O-O a5 7. bxa5 Qxa5 8. d3 Qh5 9. c4 Na6 10. Nbd2 Nc5
1964 Tel Aviv olm prel – Round 6 – Smyslov, Vladimir – 1-0 – Ader Hausman, Walter – G244 1. Nf3 Nf6 2. g3 g6 3. b4 Bg7 4. Bb2 O-O 5. Bg2 c6 6. c4 d5 7. Na3 a5 8. b5 dxc4 9. bxc6 Nxc6 10. Nxc4 Be6
1964 Zinnowitz Zinnowitz GER – Round 9 – Moehring, Guenther – 0-1 – Popov, Luben – G36 1. Nf3 Nf6 2. g3 g6 3. b4 Bg7 4. Bb2 b6 5. Bg2 Bb7 6. O-O d5 7. d3 O-O 8. Nbd2 Nbd7 9. c4 c5 10. bxc5 Nxc5
1965 Capablanca Memorial – Round 5 – Doda, Zbigniew – 0-1 – Bilek, Istvan – G54 1. Nf3 Nf6 2. g3 g6 3. b4 Bg7 4. Bb2 d6 5. d4 Nbd7 6. Nbd2 O-O 7. Bg2 e5 8. dxe5 dxe5 9. e4 Qe7 10. a3 a5
1965 Hamburg etc – Round 5 – Smyslov, Vladimir – 1/2-1/2 – Zuidema, Coen – G63 1. Nf3 Nf6 2. g3 g6 3. b4 Bg7 4. Bb2 c6 5. Bg2 a5 6. a3 axb4 7. axb4 Rxa1 8. Bxa1 Qb6 9. c3 d5 10. O-O O-O
1965 Palma de Mallorca – Round 4 – Darga, Klaus – 1/2-1/2 – Bukic, Enver – G8 1. Nf3 Nf6 2. g3 g6 3. b4 Bg7 4. Bb2 O-O 5. Bg2 d5 6. O-O c6 7. a4 Qb6 8. b5 a6 9. Na3 Bg4 10. c4 axb5
1965 Sarajevo – Round 1 – Kozomara, Vlado – 1-0 – Osmanagic, Dusan – G25 1. Nf3 Nf6 2. g3 g6 3. b4 Bg7 4. Bb2 d5 5. Bg2 O-O 6. Na3 c6 7. c4 Nbd7 8. O-O Re8 9. cxd5 cxd5 10. Rc1 a6
1965 WchT U26 12. fin-B – Round 3 – Spiridonov, Nikola – 1-0 – Bouaziz, Nejib – G9 1. Nf3 Nf6 2. g3 g6 3. b4 Bg7 4. Bb2 d6 5. Bg2 O-O 6. O-O e5 7. d3 Nc6 8. b5 Ne7 9. a4 Bd7 10. c4 Qc8
1965 Zinnowitz GER – Round 2 – Haag, Ervin – 1-0 – Bruentrup, Dieter – G5 1. Nf3 Nf6 2. g3 g6 3. b4 Bg7 4. Bb2 O-O 5. Bg2 d6 6. O-O c6 7. c4 e5 8. d3 Nh5 9. Qb3 Be6 10. Nbd2 f5
1966 CSR Ch Int 1st – Round 5 – Pithart, Frantisek – 1-0 – Jimenez Zerquera, Eleazar – G31 1. Nf3 Nf6 2. g3 g6 3. b4 Bg7 4. Bb2 d6 5. Bg2 O-O 6. c4 e5 7. O-O a5 8. b5 Nbd7 9. Nc3 Nc5 10. d4 exd4
1966 Santa Monica – Round 8 – Petrosian, Tigran V – 1-0 – Najdorf, Miguel – G36 1. Nf3 Nf6 2. g3 g6 3. b4 Bg7 4. Bb2 O-O 5. Bg2 c6 6. O-O a5 7. a3 axb4 8. axb4 Rxa1 9. Bxa1 Qb6 10. c3 d5
1966 Tbilisi ch-URS – Round 5 – Polugaevsky, Lev – 1/2-1/2 – Krogius, Nikolai V – G49 1. Nf3 Nf6 2. g3 g6 3. b4 Bg7 4. Bb2 O-O 5. Bg2 c6 6. O-O a5 7. a3 axb4 8. axb4 Rxa1 9. Bxa1 Qb6 10. c3 d6
1966 WchTJ U26 prel – Round 2 – Spiridonov, Nikola – 1-0 – Bouaziz, Nejib – G15 1. Nf3 Nf6 2. g3 g6 3. b4 Bg7 4. Bb2 O-O 5. Bg2 d6 6. O-O e5 7. d3 h6 8. Nfd2 c6 9. a4 Be6 10. c4 Qc8
1967 Harrachov – Round 1 – Keene, Raymond D – 0-1 – Gilden, Lawrence – G120 1. Nf3 Nf6 2. g3 g6 3. b4 Bg7 4. Bb2 O-O 5. Bg2 d6 6. O-O e5 7. c4 e4 8. Ne1 Nc6 9. b5 Ne5 10. Na3 Re8
1967 Kraljevo – Round 14 – Knezevic, Milorad – 1-0 – Mestrovic, Zvonimir – G20 1. Nf3 Nf6 2. g3 g6 3. b4 Bg7 4. Bb2 O-O 5. Bg2 d6 6. O-O c5 7. bxc5 dxc5 8. a4 Nc6 9. Na3 Nd4 10. Nxd4 cxd4
1967 Moscow – Round 1 – Veresov, Gavriil – 0-1 – Muratov, Vladimir A – G139 1. Nf3 Nf6 2. g3 g6 3. b4 Bg7 4. Bb2 d6 5. Bg2 O-O 6. O-O Nbd7 7. c4 c6 8. d3 Qb6 9. a3 a5 10. Nc3 axb4
1967 Moscow – Round 1 – Voskanyan, Vahagn – 0-1 – Peterson, Andrejs – G142 1. Nf3 Nf6 2. g3 g6 3. b4 Bg7 4. Bb2 O-O 5. Bg2 c6 6. O-O a5 7. a3 axb4 8. axb4 Rxa1 9. Bxa1 Qb6 10. c3 d5
1967 Palma de Mallorca – Round 10 – Toran Albero, Roman – 1/2-1/2 – Gligorić, Svetozar – G75 1. Nf3 Nf6 2. g3 g6 3. b4 Bg7 4. Bb2 O-O 5. Bg2 d6 6. O-O e5 7. d3 Nbd7 8. c4 Re8 9. Nc3 e4 10. Nxe4 Nxe4
1967 Palma de Mallorca – Round 9 – Matulovic, Milan – 1/2-1/2 – Ivkov, Borislav – G66 1. Nf3 Nf6 2. g3 g6 3. b4 Bg7 4. Bb2 c6 5. c4 O-O 6. Bg2 d5 7. cxd5 cxd5 8. O-O a6 9. a4 Bg4 10. d3 Qb6
1967 Sousse Interzonal – Round 18 – Stein, Leon Rico – 1-0 – Barczay, Laszlo – G171 1. Nf3 Nf6 2. g3 g6 3. b4 Bg7 4. Bb2 O-O 5. Bg2 a5 6. a3 d6 7. d3 c6 8. Nbd2 Na6 9. c4 Bd7 10. Rb1 e5
1967 URS Team Ch – Round 1 – Krutikhin, Yury Petrovich – 0-1 – Geller, Efim P – G45 1. Nf3 Nf6 2. b4 g6 3. Bb2 Bg7 4. g3 O-O 5. Bg2 d6 6. d4 Nbd7 7. O-O Nb6 8. Nbd2 Na4 9. Rb1 Nxb2 10. Rxb2 e5
1968 Capablanca Memorial – Round 1 – Stein, Leon Rico – 1-0 – Rodriguez Gonzales, Angie Kelly – G74 1. Nf3 Nf6 2. g3 g6 3. b4 Bg7 4. Bb2 O-O 5. Bg2 d6 6. d3 Nbd7 7. Nbd2 e5 8. O-O a5 9. a3 Nb6 10. c4 Bd7
1968 Hoogovens – Round 1 – Jongsma, Alexander – 1/2-1/2 – Zuckerman, Bernard – G10 1. Nf3 Nf6 2. g3 g6 3. b4 Bg7 4. Bb2 O-O 5. c4 d6 6. Bg2 e5 7. Nc3 Nc6 8. b5 Nd4 9. d3 Ne6 10. Nd2 Nh5
1968 It Buesum GER – Round 5 – Hecht, Hans-Joachim – 1-0 – Pollak, Georg – G23 1. Nf3 Nf6 2. g3 g6 3. b4 Bg7 4. Bb2 O-O 5. Bg2 c6 6. c4 d5 7. cxd5 Nxd5 8. Bxg7 Kxg7 9. Qc1 f6 10. a3 a5
1968 Lugano olm - Round 1 - Sigurjonsson, Gudmundur - 0-1 - Belkadi, Ridha - G485 1. Nf3 Nf6 2. g3 g6 3. b4 Bg7 4. Bb2 d6 5. Bg2 e5 6. d3 O-O 7. O-O h6 8. c4 Be6 9. Nbd2 Qc8 10. Qc2 Nc6
1969 Athene zt – Round 7 – Spiridonov, Nikola – 1-0 – Suer, Halil Cenk – G10 1. Nf3 Nf6 2. g3 g6 3. b4 Bg7 4. Bb2 c6 5. c4 O-O 6. Bg2 d5 7. Qc2 dxc4 8. Qxc4 Qd5 9. Qc2 Nbd7 10. d3 Nb6
1969 Brno KOLT 2nd – Round ? – Dobrovolsky, Ladislav – 1-0 – Zavodny, Zdenek – G11 1. Nf3 Nf6 2. g3 g6 3. b4 Bg7 4. Bb2 d5 5. Bg2 O-O 6. O-O c6 7. d3 a5 8. a3 axb4 9. axb4 Rxa1 10. Bxa1 Nbd7
1969 Budapest ch-HUN – Round 1 – Sapi, Laszlo – 1-0 – Ribli, Zoltan – G117 1. Nf3 Nf6 2. g3 g6 3. b4 Bg7 4. Bb2 O-O 5. Bg2 d6 6. O-O e5 7. d3 Nh5 8. e4 f5 9. exf5 e4 10. Nd4 c5
1969 Budapest ch-HUN – Round 1 – Vadasz, Laszlo – 1-0 – Filep, Tibor – G118 1. Nf3 Nf6 2. g3 g6 3. b4 Bg7 4. Bb2 O-O 5. c4 c6 6. Bg2 d5 7. cxd5 cxd5 8. O-O Qb6 9. a3 a5 10. Nc3 Na6
1969 Icelandic Chess Cham – Round 1 – Sigurjonsson, Gudmundur – 1-0 – Kristinsson, Jon – G1 1. Nf3 Nf6 2. g3 g6 3. b4 Bg7 4. Bb2 O-O 5. Bg2 d6 6. O-O e5 7. d3 c6 8. Nbd2 Qe7 9. c4 Bg4 10. Qc2 Nbd7
1969 Ljubljana – Round 1 – Barcza, Gedeon – 1-0 – Sajovic Stupica, Tristan – G19 1. Nf3 Nf6 2. g3 g6 3. b4 Bg7 4. Bb2 O-O 5. Bg2 d6 6. O-O e5 7. c4 Nbd7 8. Nc3 Re8 9. Qc2 Nh5 10. d3 Nf8
1969 Sarajevo – Round 1 – Bukal, Vladimir Jr. – 1-0 – Mestrovic, Zvonimir – G20 1. Nf3 Nf6 2. g3 g6 3. b4 Bg7 4. Bb2 O-O 5. Bg2 d5 6. O-O c6 7. d3 Bg4 8. Nbd2 Nbd7 9. c4 Re8 10. Qc2 e5
1969 Varna – Round 1 – Spiridonov, Nikola – 0-1 – Krogius, Nikolai V – G12 1. Nf3 Nf6 2. g3 g6 3. b4 Bg7 4. Bb2 O-O 5. Bg2 c6 6. O-O a5 7. a3 axb4 8. axb4 Rxa1 9. Bxa1 Qb6 10. c3 d6
1969 Varna – Round 11 – Spiridonov, Nikola – 0-1 – Krogius, Nikolai V – G13 1. Nf3 Nf6 2. g3 g6 3. b4 Bg7 4. Bb2 O-O 5. Bg2 c6 6. O-O a5 7. a3 axb4 8. axb4 Rxa1 9. Bxa1 Qb6 10. c3 d6
1969 WchT U26 fin-B 16th – Round 2.1 – Sigurjonsson, Gudmundur – 1/2-1/2 – Holaszek, Hans – G9 1. Nf3 Nf6 2. g3 g6 3. b4 Bg7 4. Bb2 O-O 5. Bg2 c6 6. O-O a5 7. a3 axb4 8. axb4 Rxa1 9. Bxa1 Qb6 10. c3 d5
1969 WchT U26 fin-B 16th – Round 8.1 – Sigurjonsson, Gudmundur – 0-1 – Westerinen, Heikki M.J. – G48 1. Nf3 Nf6 2. g3 g6 3. b4 Bg7 4. Bb2 O-O 5. Bg2 d6 6. O-O e5 7. d3 Nh5 8. e4 Nd7 9. Nbd2 Qe8 10. d4 Nb6
1970 Palma de Mallorca Interzonal – Round 13 – Rubinetti, Jorge – 0-1 – Mecking, Henrique – G270 1. Nf3 Nf6 2. g3 g6 3. b4 Bg7 4. Bb2 O-O 5. Bg2 c6 6. O-O a5 7. a3 axb4 8. axb4 Rxa1 9. Bxa1 Qb6 10. c3 d5
3. Norway Blitz 2015 – Round 2.4 – Topalov, Veselin – 0-1 – Caruana, Fabiano – G9 1. Nf3 Nf6 2. g3 g6 3. b4 Bg7 4. Bb2 O-O 5. Bg2 d5 6. O-O c6 7. d3 a5 8. a3 axb4 9. axb4 Rxa1 10. Bxa1 Na6
World Blitz 2007 – Round 3 – Bacrot, Etienne – 0-1 – Mamedyarov, Shakhriyar – G30 1. Nf3 Nf6 2. g3 g6 3. b4 Bg7 4. Bb2 d6 5. Bg2 c5 6. bxc5 dxc5 7. c4 O-O 8. O-O Nc6 9. d3 Bg4 10. Ne5 Nxe5

A05r — KIA Reti-Smyslov Variation

1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 5.Bb2

Les coups candidats

4…O-O — 62.2% (905 parties)

Ambassadeurs : Auger, Bertrand (45x), Poleschi, Ricardo (20x), Poley, Vladimir (14x), Spiridonov, Nikola (12x), Soppe, Guillermo (11x), Arnaudov, Petar (11x), Smyslov, Vladimir (10x), Fluvia Poyatos, Jordi (10x)

4…d6 — 12.7% (185 parties)

Ambassadeurs : Spiridonov, Nikola (5x), Poley, Vladimir (5x), Poleschi, Ricardo (3x), Hartlaub, Marianne (3x), Pithart, Frantisek (2x), Jimenez Zerquera, Eleazar (2x), Eymann, Henri (2x), Davies, Nigel R (2x)

4…d5 — 10.8% (157 parties)

Ambassadeurs : Auger, Bertrand (7x), Poleschi, Ricardo (5x), Michalek, Christoph (3x), Akesson, Ralf (2x), Spiridonov, Nikola (2x), Sigurjonsson, Gudmundur (2x), Gruenfeld, Yehuda (2x), Muller II, Raymond W (2x)

4…c6 — 8.6% (125 parties)

Ambassadeurs : Soppe, Guillermo (9x), Bronstein, David I (3x), Spiridonov, Nikola (3x), Poleschi, Ricardo (3x), Werner, Gert (3x), Smyslov, Vladimir (2x), Tatai, Stefano (2x), Schlueter, Wolfgang (2x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	4…O-O	4…d6	4…d5	4…c6
<1800	31	65%	16%	16%	—
1800-2200	569	66%	12%	10%	6%
2200-2600	505	59%	13%	11%	11%
2600+	4	50%	25%	—	25%

Évolution par décennie (% des parties)

Décennie	N parties	4…O-O	4…d6	4…d5	4…c6
1930s	2	50%	50%	—	—
1950s	4	50%	25%	—	25%
1960s	86	65%	15%	7%	10%
1970s	69	62%	6%	10%	14%
1980s	118	59%	15%	14%	6%
1990s	373	58%	14%	13%	11%
2000s	424	65%	12%	10%	8%
2010s	315	66%	13%	8%	6%
2020s	65	52%	9%	18%	5%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
4…O-O	66%	52%	▼ -13.7%
4…d6	13%	9%	▼ -3.5%
4…d5	8%	18%	▲ +10.5%
4…c6	6%	5%	▼ -1.4%

Joueurs célèbres

Champions du monde dans cette position

Smyslov, Vladimir — 10 parties

Parties historiques

4…O-O — 62.2% (905 parties)

1936 — Skalicka, Karel vs Frydman, Paulino — 0-1 — Podebrady CZE
1952 — Fazekas, Stephan vs Spears, Michael J A — 1-0 — Southsea
1957 — Otteson, Milton vs Fischer, Robert J — 1-0 — Milwaukee, WI USA
1961 — Urseanu, Veniamin vs Ciocaltea, Victor — 0-1 — Romania
1961 — Vatnikov, Joseph vs Cherepkov, Alexander V — 1-0 — Spartakiade

4…d6 — 12.7% (185 parties)

1930 — Noteboom, Daniel vs Landau, Salo — 1/2-1/2 — Amsterdam NED
1957 — Fazekas, Stephan vs Koberl, Ferenc — 1-0 — Hastings ENG
1961 — Lengyel, Laszlo vs Brzozka, Stefan — 0-1 — Warsaw POL
1963 — Smyslov, Vasily vs Littlewood H — 1/2-1/2 — ?
1964 — Malich, Burkhard, Dr. vs Sumar, Julio — 1/2-1/2 — Tel Aviv olm

4…d5 — 10.8% (157 parties)

1961 — Smyslov, Vladimir vs Korchnoi, Viktor — 1-0 — Moscow RUS
1965 — Sloth, Jorn vs Brinck-Claussen, Bjorn — 0-1 — ?
1965 — Keene, Raymond D vs Schoeneberg, Manfred — 1/2-1/2 — Barcelona wch-jr pre
1965 — Kozomara, Vlado vs Osmanagic, Dusan — 1-0 — Sarajevo BIH
1967 — Mecking, Henrique vs Pinto Paiva, Jose — 1/2-1/2 — Sao Paulo BRA

4…c6 — 8.6% (125 parties)

1955 — Olafsson, Thorir vs Gudmundsson, Arinbjorn — 0-1 — Reykjavik ISL
1964 — Smyslov, Vladimir vs Bronstein, David I — 1/2-1/2 — Amsterdam NED
1965 — Smyslov, Vladimir vs Zuidema, Coen — 1/2-1/2 — Hamburg GER
1966 — Keene, Raymond D vs Jakobsen, Ole — 1/2-1/2 — Orebro SWE
1967 — Matulovic, Milan vs Ivkov, Borislav — 1/2-1/2 — Palma de Majorca ESP

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