A50n — Indian: Queen’s Indian Accelerated

1.d4 Nf6 2.c4 b6 3.Nc3 Bb7 4.Qc2 * ● 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 la case forte b5 et la paire de fous.

Côté adverse. Le fou enfermé en f8 et le roi resté au centre.

En contrepartie. Le roi n'est pas encore à l'abri et plusieurs pièces dorment encore (le cavalier g1, les fous c1 et f1 et les tours a1 et h1).

Plans. e4 (Centre d4+e4, menace e5, libère Bf1) ; Nf3 (Développer Ng1) ; Bg5 (Clouer Nf6).

♚ 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 un fou actif en b7 et la paire de fous.

Côté adverse. Les fous enfermés en c1 et 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 f8 et les tours a8 et h8).

Plans. ...Nc6 (Développer Nb8) ; ...c5 (Rupture) ; ...d5 (Rupture) ; ...e6 (Rupture) ; ...e5 (Rupture).

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	—	● a7→b6, c7→b6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● b5 (2v0)	—
Cases faibles	● e4	● d5
Centre	● e5 (1v0)	—

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Bf1	● Bf1 Non développé (mob. 0)
Bb7		● Bb7 Actif (mob. 7)
Bf8		● Bf8 Non développé (mob. 0)
Paire de fous	● Oui	● Oui
Non développées	5 (● g1, ● c1, ● f1, ● a1, ● h1)	4 (● b8, ● 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	semi-ouvert
Ruptures	● c4-c5, ● d4-d5, ● e2-e3, ● f2-f3	● …c7-c6, ● …c7-c5, ● …d7-d6, ● …d7-d5, ● …e7-e6, ● …e7-e5

Partie
1922 Vienna – Round 1 – Alekhine, Alexander – 1-0 – Koenig, Imre – G24 1. d4 Nf6 2. c4 b6 3. Nc3 Bb7 4. Qc2 d5 5. cxd5 Nxd5 6. Nf3 e6 7. e4 Nxc3 8. bxc3 Be7 9. Bb5+ c6 10. Bd3 O-O
1923 Karlsbad – Round 1 – Saemisch, Friedrich – 0-1 – Nimzowitsch, Aron – G32 1. d4 Nf6 2. c4 b6 3. Nc3 Bb7 4. Qc2 Nc6 5. d5 Nb4 6. Qd1 a5 7. e4 e5 8. g3 g6 9. Bg2 Bg7 10. Nge2 O-O
1923 Trieste – Round 1 – Seitz, Jakob Adolf – 1-0 – Vecsey, Zoltan – G2 1. c4 Nf6 2. Nc3 b6 3. d4 Bb7 4. Qc2 d6 5. Nf3 Nbd7 6. e4 e5 7. d5 h6 8. h3 g6 9. Be3 Bg7 10. Nh2 Ng8
1925 Bratislava-A – Round 1 – Zabodrocky, Ernest – 0-1 – Reti, Richard – G2 1. d4 Nf6 2. c4 b6 3. Nc3 Bb7 4. Qc2 d5 5. cxd5 Nxd5 6. Bd2 e6 7. e3 c5 8. dxc5 Bxc5 9. Nxd5 Qxd5 10. Nf3 O-O
1925 Debrecen – Round 1 – Vukovic, Vladimir – 1/2-1/2 – Gruenfeld, Ernst – G18 1. d4 Nf6 2. c4 b6 3. Nc3 Bb7 4. Qc2 d5 5. Nf3 e6 6. Bg5 Be7 7. e3 Nbd7 8. cxd5 exd5 9. Bd3 a6 10. O-O h6
1925 DSB-24.Kongress – Round 4 – Moritz, Bruno – 0-1 – Gruenfeld, Ernst – G13 1. d4 Nf6 2. c4 b6 3. Nc3 Bb7 4. Qc2 d5 5. cxd5 Nxd5 6. e4 Nxc3 7. bxc3 e6 8. Nf3 Be7 9. Bd3 Nd7 10. O-O c5
1925 Marienbad – Round 12 – Rubinstein, Akiba – 1-0 – Janowski, Dawid – G75 1. c4 Nf6 2. d4 b6 3. Nc3 Bb7 4. Qc2 e6 5. e4 Bb4 6. Bd3 c5 7. d5 exd5 8. exd5 b5 9. b3 O-O 10. Ne2 d6
1925 Marienbad – Round 2 – Gruenfeld, Ernst – 1-0 – Reti, Richard – G9 1. d4 Nf6 2. c4 b6 3. Nc3 Bb7 4. Qc2 g6 5. e4 d6 6. g3 Bg7 7. Bg2 O-O 8. Nge2 Nc6 9. d5 Nb4 10. Qd1 c6
1925 Moscow – Round ? – Gothilf, Solomon Borisovich – 0-1 – Reti, Richard – G184 1. d4 Nf6 2. c4 b6 3. Nc3 Bb7 4. Qc2 d5 5. cxd5 Nxd5 6. e4 Nxc3 7. bxc3 e6 8. Be3 Nd7 9. Rd1 c6 10. Bd3 Qc7
1925 Moscow – Round 1 – Gothilf, Solomon Borisovich – 0-1 – Rabinovich, Ilya Mar – G31 1. d4 Nf6 2. c4 b6 3. Nc3 Bb7 4. Qc2 d5 5. cxd5 Nxd5 6. e4 Nxc3 7. bxc3 e6 8. Be3 Nd7 9. Rd1 Bd6 10. Nf3 O-O
1925 Moscow – Round 1 – Gruenfeld, Ernst – 1-0 – Reti, Richard – G33 1. d4 Nf6 2. c4 b6 3. Nc3 Bb7 4. Qc2 d5 5. Nf3 g6 6. Bf4 Bg7 7. e3 O-O 8. h3 Nbd7 9. Rd1 c5 10. dxc5 Nxc5
1925 Moscow – Round 12 – Marshall Viele, Fabrizio Aaron – 1/2-1/2 – Gotthilf, Solomon B – G156 1. d4 Nf6 2. c4 b6 3. Nc3 Bb7 4. Qc2 d5 5. cxd5 Nxd5 6. e4 Nxc3 7. bxc3 e6 8. Nf3 c5 9. Ne5 a6 10. Rb1 Be7
1925 Wiesbaden – Round 1 – Schories, Georg – 1/2-1/2 – Euwe, Max – G1 1. d4 Nf6 2. c4 b6 3. Nc3 Bb7 4. Qc2 d6 5. Bf4 Nbd7 6. Rd1 Nh5 7. Bc1 e5 8. dxe5 Nxe5 9. e4 g6 10. Be2 Nf6
1926 Bardejov – Round 7 – Kostic, Boris – 1-0 – Mueller, Hans – G32 1. c4 b6 2. Nc3 Bb7 3. d4 Nf6 4. Qc2 e6 5. e4 Bb4 6. Bd3 Bxc3+ 7. bxc3 d6 8. f4 e5 9. Ne2 Nfd7 10. O-O Nc6
1926 Budapest – Round 7 – Gruenfeld, Ernst – 1/2-1/2 – Reti, Richard – G42 1. d4 Nf6 2. c4 b6 3. Nc3 Bb7 4. Qc2 e6 5. e4 Bb4 6. Bd3 Nc6 7. Ne2 e5 8. d5 Ne7 9. a3 Bxc3+ 10. Qxc3 d6
1926 Semmering – Round 1 – Acebey Michel, Veroska – 1/2-1/2 – Gruenfeld, Ernst – G27 1. d4 Nf6 2. c4 b6 3. Nc3 Bb7 4. Qc2 d5 5. cxd5 Nxd5 6. Nf3 e6 7. Nxd5 Qxd5 8. e3 Nd7 9. Bd3 Bb4+ 10. Bd2 Bxd2+
1926 Semmering – Round 1 – Gruenfeld, Ernst – 1-0 – Tarrasch, Siegbert – G29 1. d4 Nf6 2. c4 b6 3. Nc3 Bb7 4. Qc2 d6 5. Nf3 Nbd7 6. Bf4 g6 7. Rd1 Bg7 8. e4 O-O 9. Be2 Qc8 10. Bc1 e5
1927 DSB-25.Kongress – Round 8 – List, Paul – 1-0 – Hilse, Wilhelm H – G35 1. d4 Nf6 2. c4 b6 3. Nc3 Bb7 4. Qc2 e6 5. e4 Bb4 6. Bd3 Bxc3+ 7. bxc3 d6 8. Ne2 Nc6 9. O-O Nd7 10. f4 Na5
1927 London – Round 9 – Buerger, Victor – 0-1 – Yates, Frederic D – G44 1. d4 Nf6 2. c4 b6 3. Nc3 Bb7 4. Qc2 e6 5. e4 Bb4 6. Bd3 c5 7. d5 b5 8. b3 O-O 9. Ne2 d6 10. O-O bxc4
1928 Bad Kissingen – Round 9 – Tartakower, Savielly – 1-0 – Marshall Viele, Fabrizio Aaron – G49 1. d4 Nf6 2. c4 b6 3. Nc3 Bb7 4. Qc2 e6 5. e4 d5 6. cxd5 exd5 7. e5 Ne4 8. Bb5+ c6 9. Bd3 Bb4 10. Ne2 f5
1928 Haag olm – Round ? – Pokorny, Amos – 1-0 – Cortes Aguilar, Luis Ferna – G7 1. d4 Nf6 2. c4 b6 3. Nc3 Bb7 4. Qc2 d6 5. e4 g6 6. f4 Bg7 7. Nf3 O-O 8. Bd3 c5 9. d5 Bc8 10. O-O Ne8
1928 Trencianske Teplice – Round 5 – Gruenfeld, Ernst – 1/2-1/2 – Kostic, Boris – G10 1. d4 Nf6 2. c4 b6 3. Nc3 Bb7 4. Qc2 e6 5. e4 Bb4 6. Bd3 Nc6 7. Ne2 e5 8. d5 Nb8 9. a3 Be7 10. O-O d6
1928 Trencianske Teplice – Round 5 – Saemisch, Friedrich – 1/2-1/2 – Hromadka, Karel – G11 1. d4 Nf6 2. c4 b6 3. Nc3 Bb7 4. Qc2 d5 5. cxd5 Nxd5 6. Nf3 Nxc3 7. bxc3 e6 8. e4 Be7 9. Bb5+ c6 10. Bd3 Nd7
1929 Budapest – Round 1 – Przepiorka, Dawid – 1/2-1/2 – Canal, Esteban – G14 1. d4 Nf6 2. c4 b6 3. Nc3 Bb7 4. Qc2 Nc6 5. d5 Nb4 6. Qd1 e6 7. a3 Na6 8. e4 exd5 9. exd5 Be7 10. Nf3 O-O
1929 Odessa ch-URS – Round 1 – Botvinnik, Mikhail – 1-0 – Silich, Vladislav – G9 1. d4 Nf6 2. c4 b6 3. Nc3 Bb7 4. Qc2 e6 5. e4 Bb4 6. Bd3 Bxc3+ 7. bxc3 d6 8. Ne2 c5 9. O-O Nc6 10. f4 Qe7
1929 Odessa ch-URS – Round 1 – Verlinsky, Boris – 1-0 – Freiman, Sergey Nikolaevich – G8 1. d4 Nf6 2. c4 b6 3. Nc3 Bb7 4. Qc2 d5 5. cxd5 Nxd5 6. Nf3 e6 7. e4 Nxc3 8. bxc3 Be7 9. Bb5+ c6 10. Bd3 Qc7
1930 Hamburg olm – Round 1 – Carls, Carl – 1-0 – Thomas, George Alan – G6 1. c4 Nf6 2. Nc3 b6 3. d4 Bb7 4. Qc2 e6 5. e4 Bb4 6. Bd3 c5 7. d5 d6 8. Ne2 Nbd7 9. O-O Bxc3 10. Nxc3 O-O
1930 San Remo – Round 1 – Grau, Roberto G – 1/2-1/2 – Ahues, Carl – G39 1. d4 Nf6 2. c4 b6 3. Nc3 Bb7 4. Qc2 e6 5. e4 d6 6. f3 Be7 7. Be3 O-O 8. Nge2 Nbd7 9. Ng3 Re8 10. Be2 e5
1931 Prague ol – Round 239 – Alekhine, Alexander – 1-0 – Andersen Zargham, Ellene – G79 1. d4 Nf6 2. c4 b6 3. Nc3 Bb7 4. Qc2 e6 5. e4 Bb4 6. f3 O-O 7. Bd3 h6 8. Ne2 d5 9. cxd5 exd5 10. e5 Nfd7
1934 Leningrad – Round 7 – Botvinnik, Mikhail – 1-0 – Chekhover, Vitaly – G66 1. c4 Nf6 2. Nc3 b6 3. d4 Bb7 4. Qc2 d5 5. Bg5 e6 6. cxd5 exd5 7. e3 Be7 8. Bd3 h6 9. Bf4 O-O 10. Nge2 c5
1934 Leningrad ch-URS – Round 1 – Chekhover, Vitaly – 1/2-1/2 – Savitsky, Leonid – G46 1. d4 Nf6 2. c4 b6 3. Nc3 Bb7 4. Qc2 Nc6 5. Nf3 g6 6. a3 Bg7 7. e3 d6 8. Bd3 e5 9. O-O O-O 10. dxe5 Nxe5
1934 Leningrad ch-URS – Round 1 – Freiman, Sergey Nikolaevich – 1/2-1/2 – Chekhover, Vitaly – G50 1. d4 Nf6 2. c4 b6 3. Nc3 Bb7 4. Qc2 d5 5. cxd5 Nxd5 6. Nf3 e6 7. e4 Nxc3 8. bxc3 Nd7 9. Bd3 Be7 10. O-O c6
1935 Vienna – Round 1 – Gruenfeld, Ernst – 1/2-1/2 – Gereben, Erno – G10 1. d4 Nf6 2. c4 b6 3. Nc3 Bb7 4. Qc2 e6 5. e4 Bb4 6. f3 Nc6 7. Be3 O-O 8. a3 Bxc3+ 9. Qxc3 d5 10. cxd5 exd5
1936 Podebrady – Round 3 – Thomas, George Alan – 0-1 – Pelikan, Jorge – G34 1. c4 Nf6 2. Nc3 b6 3. d4 Bb7 4. Qc2 d5 5. Nf3 g6 6. cxd5 Nxd5 7. Nxd5 Qxd5 8. e3 Qd6 9. Bd2 Bg7 10. Rc1 c6
1936 Trebitsch Memorial 19th – Round 10 – Fuster, Geza – 1/2-1/2 – Friedmann Henryk – G19 1. d4 Nf6 2. c4 b6 3. Nc3 Bb7 4. Qc2 d6 5. e4 e6 6. f3 Be7 7. Be3 Nbd7 8. Bd3 e5 9. Nge2 c6 10. Ng3 g6
1937 Prague – Round 2 – Zinner, Emil – 1-0 – Hromadka, Karel – G7 1. d4 Nf6 2. c4 b6 3. Nc3 Bb7 4. Qc2 c5 5. d5 d6 6. e4 g6 7. Nf3 Nbd7 8. Be2 Bg7 9. h3 a6 10. a4 Qc7
1938 Trade Unions – Round 21 – Gothilf, Solomon Borisovich – 1-0 – Tolush, Alexander V – G164 1. d4 Nf6 2. c4 b6 3. Nc3 Bb7 4. Qc2 d5 5. cxd5 Nxd5 6. Nf3 e6 7. e4 Nxc3 8. bxc3 Nd7 9. Be3 a6 10. Bd3 c5
1943 Sverdlovsk – Round 1 – Makogonov, Vladimir – 1-0 – Kan, Ilya A – G3 1. d4 Nf6 2. c4 b6 3. Nc3 Bb7 4. Qc2 d5 5. Nf3 Nbd7 6. cxd5 Nxd5 7. Nxd5 Bxd5 8. e4 Bb7 9. Bc4 e6 10. O-O Be7
1948 Saltsjobaden Interzonal – Round 15 – Ragozin, Viacheslav – 0-1 – Tartakower, Savielly – G133 1. d4 Nf6 2. c4 b6 3. Nc3 Bb7 4. Qc2 d5 5. cxd5 Nxd5 6. Nf3 e6 7. Bg5 Be7 8. Nxd5 exd5 9. Bxe7 Qxe7 10. e3 O-O
1958 HUN Ch 13th – Round 4 – Lengyel, Levente – 1/2-1/2 – Laszlo, Deli – G30 1. d4 Nf6 2. c4 b6 3. Nc3 Bb7 4. Qc2 e6 5. e4 d5 6. cxd5 exd5 7. e5 Nfd7 8. Nf3 c5 9. Bf4 cxd4 10. Nxd4 Bc5
1967 Palma de Mallorca – Round 5 – Gligorić, Svetozar – 0-1 – Larsen, Bent Ravn – G36 1. d4 Nf6 2. c4 b6 3. Nc3 Bb7 4. Qc2 d5 5. cxd5 Nxd5 6. e4 Nxc3 7. bxc3 e5 8. dxe5 Qh4 9. Nf3 Qxe4+ 10. Qxe4 Bxe4
1969 Liberation – Round 7 – Gligorić, Svetozar – 1-0 – Sahovic, Dragutin – G31 1. d4 Nf6 2. c4 b6 3. Nc3 Bb7 4. Qc2 d5 5. cxd5 Nxd5 6. Nf3 e6 7. e4 Nxc3 8. bxc3 Be7 9. Bb5+ c6 10. Bd3 c5
41. Olympiad Open 2014 – Round 7.29 – Papaioannou, Ioannis CS – 1/2-1/2 – Cordova, Emilio – G505 1. d4 Nf6 2. c4 b6 3. Nc3 Bb7 4. Qc2 d6 5. e4 Nbd7 6. Nf3 c5 7. d5 g6 8. Be2 Bg7 9. O-O O-O 10. Bf4 Ne8
42. Olympiad 2016 – Round 4.14 – Blagojevic, Dragisa – 1/2-1/2 – Bartel, Mateusz – G254 1. d4 Nf6 2. c4 b6 3. Nc3 Bb7 4. Qc2 d5 5. cxd5 Nxd5 6. Nf3 Nxc3 7. bxc3 g6 8. e4 Bg7 9. Be2 O-O 10. O-O Qc8
42. Olympiad 2016 – Round 7.17 – Edouard, Romain – 1/2-1/2 – Shengelia, David – G484 1. c4 Nf6 2. Nc3 b6 3. d4 Bb7 4. Qc2 e6 5. e4 Bb4 6. Bd3 c5 7. d5 b5 8. Bg5 bxc4 9. Bxc4 h6 10. Bh4 exd5
7. Norway Blitz 2019 – Round 7.5 – So, Wesley – 0-1 – Mamedyarov, Shakhriyar – G35 1. c4 Nf6 2. Nc3 b6 3. d4 Bb7 4. Qc2 d5 5. cxd5 Nxd5 6. Nf3 g6 7. e4 Nxc3 8. bxc3 Bg7 9. Bb5+ Nd7 10. O-O O-O
FIDE World Cup 2019 – Round 1.4 – Predke, Alexandr – 1/2-1/2 – Sarana, Alexey – G156 1. d4 Nf6 2. c4 b6 3. Nc3 Bb7 4. Qc2 e6 5. e4 d6 6. Nf3 Nbd7 7. Bd3 Be7 8. O-O e5 9. Qe2 O-O 10. Bc2 Re8
FIDE World Rapid 2014 – Round 9.5 – Anand, Viswanathan – 1-0 – Harikrishna, Pentala – G203 1. d4 Nf6 2. c4 b6 3. Nc3 Bb7 4. Qc2 d6 5. e4 e5 6. d5 Be7 7. Nf3 O-O 8. Be2 c6 9. O-O Nbd7 10. Be3 Rc8
SportAccord Blitz 2014 – Round 25.1 – Ponomariov, Ruslan – 1-0 – Mamedyarov, Shakhriyar – G192 1. d4 Nf6 2. c4 b6 3. Nc3 Bb7 4. Qc2 d5 5. cxd5 Nxd5 6. Nf3 g6 7. e4 Nxc3 8. bxc3 Bg7 9. Bg5 O-O 10. Rd1 h6
World Blitz 2015 – Round 8.19 – Vitiugov, Nikita – 1-0 – Mamedyarov, Shakhriyar – G474 1. d4 Nf6 2. c4 b6 3. Nc3 Bb7 4. Qc2 g6 5. e4 d6 6. Nf3 Bg7 7. Be2 O-O 8. O-O e5 9. Rd1 exd4 10. Nxd4 Nc6
World Blitz 2018 – Round 1.32 – Seliverstov, Vladimir – 0-1 – Duda, Jan-Krzysztof – G22 1. d4 Nf6 2. c4 b6 3. Nc3 Bb7 4. Qc2 d5 5. cxd5 Nxd5 6. e4 Nxc3 7. bxc3 e5 8. dxe5 Nd7 9. e6 fxe6 10. Nf3 h6
World Blitz 2021 – Round 12.45 – Piorun, Kacper – 0-1 – Pichot, Alan – G727 1. d4 Nf6 2. c4 b6 3. Nc3 Bb7 4. Qc2 d5 5. cxd5 Nxd5 6. Bd2 e6 7. e4 Nf6 8. Nf3 Be7 9. Rd1 O-O 10. a3 Nbd7
World Blitz 2023 – Round 16.46 – Ter-Sahakyan, Samvel – 0-1 – Bharath Subramaniyam H – G932 1. d4 Nf6 2. c4 b6 3. Nc3 Bb7 4. Qc2 d5 5. cxd5 Nxd5 6. e4 Nxc3 7. bxc3 e6 8. Nf3 Be7 9. Bb5+ c6 10. Bd3 c5
World Blitz 2023 – Round 18.25 – Ponomariov, Ruslan – 1-0 – Bharath Subramaniyam H – G1025 1. d4 Nf6 2. c4 b6 3. Nc3 Bb7 4. Qc2 d5 5. cxd5 Nxd5 6. Nf3 e6 7. e4 Nxc3 8. bxc3 Be7 9. Bd3 c5 10. O-O O-O
World Rapid 2019 – Round 14.18 – Melkumyan, Hrant – 1-0 – Safarli, Elmir – G888 1. d4 Nf6 2. c4 b6 3. Nc3 Bb7 4. Qc2 d5 5. cxd5 Nxd5 6. e4 Nxc3 7. bxc3 g6 8. Nf3 Bg7 9. Bb5+ Nd7 10. O-O O-O

A50n — Queen’s Indian Accelerated

1.d4 Nf6 2.c4 b6 3.Nc3 Bb7 4.Qc2

Les coups candidats

4…d5 — 61.2% (620 parties)

Ambassadeurs : Simonian, Hrair (8x), Iturrizaga Bonelli, Eduardo (7x), Moiseenko, Vadim An. (5x), Romanov, Egor (5x), Tomilova, Elena (5x), Gruenfeld, Ernst (4x), Reti, Richard (4x), Planinec, Albin (4x)

4…e6 — 22.5% (228 parties)

Ambassadeurs : Langheld Werner (4x), Botvinnik, Mikhail (3x), Alekhine, Alexander (3x), Gruenfeld, Ernst (3x), Polajzer, Danilo (3x), Narr, Irmgard (3x), Bortnyk, Olexandr (3x), Kostic, Boris (2x)

4…d6 — 5.3% (54 parties)

Ambassadeurs : Oleksak, Andrzej (4x), Euwe, Max (2x), Epishin, Vladimir (2x), Seitz, Jakob Adolf (1x), Vecsey, Zoltan (1x), Fuster, Geza (1x), Friedmann Henryk (1x), Shories (1x)

4…Nc6 — 5.1% (52 parties)

Ambassadeurs : Erdogmus, Yagiz Kaan (4x), Erigaisi Arjun (3x), Saemisch, Friedrich (2x), Chekhover, Vitaly (1x), Savitsky, Leonid (1x), Teichmann, Richard (1x), Alekhine, Alexander (1x), Nimzovitch, Aaron (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	4…d5	4…e6	4…d6	4…Nc6
<1800	22	27%	55%	9%	—
1800-2200	270	52%	29%	7%	5%
2200-2600	526	74%	15%	3%	4%
2600+	39	69%	13%	8%	8%

Évolution par décennie (% des parties)

Décennie	N parties	4…d5	4…e6	4…d6	4…Nc6
1920s	42	36%	33%	14%	10%
1930s	26	27%	50%	8%	12%
1940s	5	60%	20%	—	—
1950s	4	—	75%	25%	—
1960s	7	57%	—	29%	—
1970s	31	74%	10%	3%	—
1980s	31	42%	39%	3%	6%
1990s	56	52%	32%	4%	5%
2000s	110	39%	38%	5%	7%
2010s	451	67%	20%	6%	2%
2020s	250	72%	12%	3%	10%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
4…d5	67%	72%	▲ +5.4%
4…e6	20%	12%	▼ -8.4%
4…d6	6%	3%	▼ -2.3%
4…Nc6	2%	10%	▲ +7.8%

Joueurs célèbres

Champions du monde dans cette position

Alekhine, Alexander — 5 parties
Botvinnik, Mikhail — 4 parties
Euwe, Max — 4 parties
Anand, Viswanathan — 2 parties
Smyslov, Vladimir — 1 partie
Kasparov, Garry — 1 partie

Parties historiques

4…d5 — 61.2% (620 parties)

1922 — Alekhine, Alexander vs Koenig, Imre — 1-0 — Vienna AUT
1925 — Vukovic, Vladimir vs Gruenfeld, Ernst — 1/2-1/2 — Debrecen HUN
1925 — Gothilf, Solomon Borisovich vs Rabinovich, Ilya Mar — 0-1 — Moscow RUS
1925 — Zabodrocky, Ernest vs Reti, Richard — 0-1 — Bratislava SVK
1925 — Gruenfeld, Ernst vs Reti, Richard — 1-0 — Moscow RUS

4…e6 — 22.5% (228 parties)

1923 — Alekhine, Alexander vs Adonyo Moses — 1-0 — Portsmouth
1925 — Rubinstein, Akiba vs Janowski, Dawid — 1-0 — Marienbad CZE
1925 — Botvinnik, Mikhail vs Schebarschin M — 1-0 — Leningrad 1st cat
1926 — Kostic, Boris vs Mueller, Hans — 1-0 — Bardejov
1926 — Antze, Oskar vs Duhm, Andreas — 1-0 — Hannover GER

4…d6 — 5.3% (54 parties)

1923 — Seitz, Jakob Adolf vs Vecsey, Zoltan — 1-0 — Trieste
1925 — Euwe, Max vs Shories — 1/2-1/2 — Berlin GER
1925 — Schories, Georg vs Euwe, Max — 1/2-1/2 — Wiesbaden GER
1926 — Platz, Joseph vs Schiefer, Heinrich — 1/2-1/2 — Cologne GER
1926 — Gruenfeld, Ernst vs Tarrasch, Siegbert — 1-0 — Semmering AUT

4…Nc6 — 5.1% (52 parties)

1921 — Teichmann, Richard vs Alekhine, Alexander — 1-0 — Berlijn m
1923 — Saemisch, Friedrich vs Nimzovitch, Aaron — 0-1 — Carlsbad CZE
1923 — Saemisch, Friedrich vs Nimzowitsch, Aron — 0-1 — Carlsbad CZE
1929 — Przepiorka, Dawid vs Canal, Esteban — 1/2-1/2 — Budapest HUN
1931 — McIntosh, Leo vs Sayers, James — 0-1 — Melbourne AUS

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