E46a — Nimzo-Indian: 4.e3 O-O

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O * ○ Trait aux Blancs

Ouverture — Centre semi-ouvert

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Atouts. Les Blancs s'appuient sur la case forte b5 et la paire de fous.

Côté adverse. Le fou enfermé en c8.

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. O-O (Mettre le roi en sécurité, connecter les tours) ; Nf3 (Développer Ng1) ; Bd2 (Développer Bc1) ; Bd3 (Développer Bf1).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Atouts. Les Noirs s'appuient sur un fou actif en b4 et la paire de fous.

Côté adverse. Les fous enfermés en c1 et f1 et le roi resté au centre.

En contrepartie. Plusieurs pièces dorment encore (le cavalier b8, le fou c8 et la tour a8).

Plans. ...d6 (Libérer Bc8) ; ...Nc6 (Développer Nb8) ; ...c5 (Rupture) ; ...d5 (Rupture) ; ...e5 (Rupture).

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● f2→e3, e3→d4	● d7→e6, f7→e6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● b5 (2v0)	—
Cases faibles	—	—
Centre	● d4 (2v0), ● e5 (1v0)	—

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 1)
Bf1	● Bf1 Non développé (mob. 2)
Bb4		● Bb4 Actif (mob. 6)
Bc8		● Bc8 Non développé (mob. 0)
Paire de fous	● Oui	● Oui
Clouages	● knight c3	—
Non développées	5 (g1, c1, f1, a1, h1)	3 (b8, c8, a8)

Sécurité du roi

	♔ Blancs	♚ Noirs
Statut	● Au centre !	● Roqué
Droits de roque	O-O / O-O-O	—

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	semi-ouvert
Ruptures	● c4-c5, ● d4-d5, ● e3-e4, ● f2-f3	● …c7-c6, ● …c7-c5, ● …d7-d6, ● …d7-d5, ● …e6-e5

Partie
10. Sinquefield Cup 2023 – Round 4.2 – Nepomniachtchi, Ian – 1/2-1/2 – Caruana, Fabiano – G14 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd2 d5 6. a3 Be7 7. Nf3 Nbd7 8. Qc2 dxc4 9. Bxc4 c5 10. O-O cxd4
11. Norway Chess 2023 – Round 8.5 – Caruana, Fabiano – 1/2-1/2 – So, Wesley – G40 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd2 d5 6. Nf3 b6 7. cxd5 exd5 8. Bd3 Bd6 9. O-O Re8 10. Re1 Bb7
1945 Moscow Ch – Round 8 – Zagoriansky, Evgeny – 1-0 – Fridstein, German – G42 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Qb3 Nc6 6. a3 Bxc3+ 7. Qxc3 d5 8. Nf3 Bd7 9. Bd3 a5 10. b3 a4
1945 Quilmes – Round 4 – Reinhardt, Enrique – 1-0 – Stahlberg, Gideon – G19 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Qb3 c5 6. dxc5 Nc6 7. Nf3 Ne4 8. Bd2 Nxd2 9. Nxd2 Bxc5 10. Be2 b6
1946 Pittsburgh Open – Round 1 – Rauch, Joseph Lyon – 1-0 – Almgren, Sven – G24 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Qc2 b6 6. Bd3 Bb7 7. f3 d5 8. Ne2 dxc4 9. Bxc4 Nc6 10. O-O e5
1955 CSR Ch – Round 15 – Urbanec, Karel – 1/2-1/2 – Kozma, Julius – G117 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd2 d5 6. a3 Be7 7. Nf3 b6 8. Qc2 Bb7 9. cxd5 exd5 10. Be2 Nbd7
1971 Moscow – Round ? – Antoshin, Vladimir S – 1/2-1/2 – Kholmov, Ratmir D – G79 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Ne2 d5 6. a3 Be7 7. cxd5 exd5 8. Nf4 c6 9. Bd3 Re8 10. O-O Nbd7
1972 San Antonio – Round ? – Hort, Vlastimil – 1/2-1/2 – Evans, Larry M – G45 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Ne2 d5 6. a3 Be7 7. Nf4 c6 8. b4 Nbd7 9. cxd5 cxd5 10. Bd3 Nb6
1973 Leningrad Interzonal – Round 5 – Taimanov, Mark – 1/2-1/2 – Karpov, Anatoly – G47 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Ne2 d5 6. a3 Be7 7. cxd5 Nxd5 8. Bd2 Nxc3 9. Nxc3 c5 10. dxc5 Bxc5
1973 Leningrad Interzonal – Round 8 – Gligoric, Sofija – 1-0 – Estevez Garcia, Gonzalo – G48 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Ne2 d5 6. a3 Be7 7. cxd5 exd5 8. g3 c6 9. Bg2 Bf5 10. O-O Qc8
2024 Superbet Chess Classic - Round 1 - Gukesh D - 1-0 - Deac Bogdan-Daniel - G4 1. d4 1... Nf6 2. c4 2... e6 3. Nc3 3... Bb4 4. e3 4... O-O 5. Bd2 5... c5 6. d5 6... d6 7. Bd3 7... exd5 8. cxd5 8... Nbd7 9. Nge2 9... Ne5 10. Bc2 10... Rb8
2024 Superbet Chess Rapid – Round 1 – Keymer Vincent – 1/2-1/2 – Wei Yi – G4 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd2 d5 6. Nf3 Nbd7 7. Rc1 c6 8. Bd3 Qe7 9. Qc2 dxc4 10. Bxc4 e5
2024 Superbet Chess Rapid – Round 2 – Giri Anish – 1/2-1/2 – Erigaisi Arjun – G9 1. c4 e6 2. Nc3 Nf6 3. d4 Bb4 4. e3 O-O 5. Bd2 b6 6. Bd3 d5 7. cxd5 exd5 8. Rc1 c5 9. Nge2 Ba6 10. Bxa6 Nxa6
2026 Norway Chess Open - Round 8 - So, Wesley - 1-0 - Keymer, Vincent - G36 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd2 b6 6. Nge2 d5 7. cxd5 exd5 8. Nf4 Bb7 9. Bd3 Bd6 10. Qf3 Bxf4
43. Olympiad 2018 – Round 5.21 – Aleksandrov, Aleksej – 1-0 – Shengelia, David – G320 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd2 Re8 6. Bd3 b6 7. Nf3 Bb7 8. O-O c5 9. a3 Ba5 10. b4 cxb4
43. Olympiad 2018 – Round 7.6 – Aleksandrov, Aleksej – 1/2-1/2 – Melkumyan, Hrant – G481 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd2 d5 6. Nf3 Nbd7 7. Rc1 Be7 8. Qc2 a6 9. c5 c6 10. Bd3 Qc7
63. ch-USA 2019 – Round 3.6 – Gareyev, Timur – 1/2-1/2 – Lenderman, Aleksandr – G18 1. d4 e6 2. c4 Nf6 3. Nc3 Bb4 4. e3 O-O 5. Bd2 c5 6. Bd3 cxd4 7. exd4 d5 8. cxd5 exd5 9. Nge2 Nc6 10. O-O Bd6
American Cup Blitz 2022 – Round 4.3 – Akobian, Varuzhan – 1-0 – Robson, Ray – G21 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd2 b6 6. Nf3 Bb7 7. Bd3 d5 8. cxd5 exd5 9. Qc2 Re8 10. a3 Bd6
American Cup Blitz 2022 – Round 7.5 – Akobian, Varuzhan – 0-1 – Martinez Alcantara, Jose Eduardo – G40 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd2 b6 6. Bd3 Bb7 7. Nf3 d6 8. Qc2 c5 9. a3 Bxc3 10. Bxc3 Nbd7
American Cup Champ 2023 – Round 4.4 – Nakamura, Hikaru – 0-1 – So, Wesley – G30 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd2 d5 6. Nf3 b6 7. cxd5 exd5 8. Bd3 Bd6 9. O-O Re8 10. a3 c5
American Cup Elim 2022 – Round 2.2 – So, Wesley – 0-1 – Aronian, Levon – G10 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd2 c5 6. a3 Bxc3 7. Bxc3 Ne4 8. Ne2 b6 9. d5 d6 10. Rc1 e5
FIDE Grand Prix 3 Pool A 2022 – Round 2.2 – Nakamura, Hikaru – 1/2-1/2 – Esipenko, Andrey – G4 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd2 d5 6. Nf3 b6 7. cxd5 exd5 8. Bd3 Re8 9. O-O Bb7 10. Ne5 Bf8
FIDE Grand Swiss 2025 – Round 8 – Kuzubov Yuriy – 1/2-1/2 – Xiong Jeffery – G443 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd2 d5 6. Nf3 b6 7. cxd5 exd5 8. Rc1 Be7 9. Bd3 c5 10. Ne5 Bb7
FIDE World Cup 2019 – Round 1.1 – Fedoseev, Vladimir – 1-0 – Ganguly, Surya Shekhar – G18 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd2 b6 6. Nf3 d5 7. cxd5 exd5 8. Rc1 Be7 9. Bd3 Bb7 10. O-O c5
FIDE World Cup 2019 – Round 1.2 – Adhiban, B. – 1/2-1/2 – Iturrizaga Bonelli, Eduardo – G81 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd2 d6 6. Bd3 e5 7. Nge2 Re8 8. O-O Nbd7 9. a3 Bxc3 10. Nxc3 Nf8
FIDE World Cup 2019 – Round 2.1 – Adhiban, B. – 1/2-1/2 – Yu, Yangyi – G203 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd2 d5 6. Nf3 c5 7. a3 Bxc3 8. Bxc3 Ne4 9. Rc1 Nxc3 10. Rxc3 cxd4
FIDE World Cup 2019 – Round 2.3 – Grischuk, Alexander – 1/2-1/2 – Bok, Benjamin – G262 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd2 d5 6. Nf3 b6 7. cxd5 exd5 8. Bd3 Bd6 9. O-O Bb7 10. Qb1 Nbd7
FTX Crypto Cup 2022 – Round 3.2 – Firouzja, Alireza – 1/2-1/2 – Giri, Anish – G37 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd2 d5 6. a3 Be7 7. Nf3 Nbd7 8. cxd5 exd5 9. Bd3 c6 10. Qc2 Bd6
FTX Crypto Cup 2022 – Round 3.4 – Firouzja, Alireza – 1/2-1/2 – Giri, Anish – G45 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd2 c5 6. a3 Bxc3 7. Bxc3 Ne4 8. Ne2 b6 9. d5 Ba6 10. Qd3 exd5
GCT Blitz Paris 2021 – Round 16.3 – Caruana, Fabiano – 1/2-1/2 – Aronian, Levon – G76 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd2 c5 6. a3 Bxc3 7. Bxc3 Ne4 8. Rc1 b6 9. Nf3 Bb7 10. Be2 Nxc3
Global Chess League 2023 – Round 2.6 – Nihal Sarin – 1-0 – Bjerre, Jonas Buhl – G24 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd2 d5 6. Nf3 b6 7. cxd5 exd5 8. Rc1 Bb7 9. Bd3 Re8 10. Nb5 Bxd2+
Global Chess League 2023 – Round 4.1 – Nepomniachtchi, Ian – 1/2-1/2 – Aronian, Levon – G40 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd2 d5 6. a3 Be7 7. Nf3 Nbd7 8. Qc2 Re8 9. Be2 dxc4 10. Bxc4 c5
Norway Chess 2024 - Round 4 - Nakamura, Hikaru - 1-0 - Praggnanandhaa R - G18 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd2 c5 6. a3 Bxc3 7. Bxc3 Ne4 8. Ne2 b6 9. d5 Ba6 10. b3 b5
Norway Chess 2024 - Round 9 - Nakamura, Hikaru - 1/2-1/2 - Ding, Liren - G41 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd2 d5 6. Nf3 b6 7. cxd5 exd5 8. Bd3 Bd6 9. Nb5 Be7 10. O-O c5
Saint Louis Blitz 2021 – Round 15.5 – Shankland, Sam – 0-1 – Caruana, Fabiano – G71 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd2 d5 6. Nf3 b6 7. cxd5 exd5 8. Bd3 Re8 9. O-O Bf8 10. Ne5 c5
Saint Louis Rapid 2022 – Round 6.5 – Caruana, Fabiano – 1/2-1/2 – Aronian, Levon – G30 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd2 c5 6. a3 Bxc3 7. Bxc3 Ne4 8. Ne2 b6 9. d5 d6 10. dxe6 fxe6
Saint Louis Rapid 2024 - Round 2 - Aronian Levon - 1-0 - Nepomniachtchi Ian - G9 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd2 d5 6. Nf3 c5 7. a3 Bxc3 8. Bxc3 Ne4 9. Rc1 Nxc3 10. Rxc3 cxd4
SuperUnited Blitz 2022 – Round 11.3 – Firouzja, Alireza – 1-0 – So, Wesley – G53 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd2 d5 6. a3 Be7 7. Nf3 b6 8. cxd5 exd5 9. Bd3 c5 10. Rc1 Bb7
Tata Steel Chess 2025 – Round 5 – Gukesh D – 1-0 – Keymer Vincent – G34 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd2 d5 6. Nf3 Nbd7 7. Qc2 c6 8. Be2 b6 9. O-O a5 10. a3 Bxc3
WCh 2023 – Round 14.1 – Ding, Liren – 1/2-1/2 – Nepomniachtchi, Ian – G14 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd2 d5 6. a3 Be7 7. Nf3 c5 8. dxc5 Bxc5 9. Qc2 dxc4 10. Bxc4 Nbd7
World Blitz 2019 – Round 2.3 – Bluebaum, Matthias – 0-1 – Karjakin, Sergey – G103 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd2 b6 6. Bd3 Bb7 7. Nf3 d5 8. cxd5 exd5 9. O-O Re8 10. Rc1 Bf8
World Blitz 2019 – Round 21.72 – Vishnu Prasanna, V – 1-0 – Bosiocic, Marin – G1447 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd2 d5 6. Nf3 b6 7. cxd5 exd5 8. Bd3 Bb7 9. O-O a6 10. Rc1 Be7
World Blitz 2019 – Round 8.31 – Yuffa, Daniil – 1/2-1/2 – Aronian, Levon – G543 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd2 c5 6. a3 Bxc3 7. Bxc3 Ne4 8. Ne2 b6 9. d5 Ba6 10. b3 b5
World Blitz 2021 – Round 13.50 – Peng, Li Min – 0-1 – Sargsyan, Shant – G789 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd2 c5 6. a3 Bxc3 7. Bxc3 Ne4 8. Rc1 d6 9. Nf3 Nc6 10. Bd3 Nxc3
World Blitz 2021 – Round 16.44 – Bluebaum, Matthias – 1-0 – Gajewski, Grzegorz – G954 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd2 d5 6. Nf3 Nbd7 7. a3 Be7 8. cxd5 exd5 9. Bd3 c6 10. O-O Bd6
World Blitz 2021 – Round 16.7 – Maghsoodloo, Parham – 1-0 – Firouzja, Alireza – G974 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd2 d5 6. Nf3 b6 7. cxd5 exd5 8. Rc1 Bb7 9. Bd3 Re8 10. O-O Bf8
World Blitz 2021 – Round 19.15 – Maghsoodloo, Parham – 0-1 – Gukesh D – G1093 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd2 d5 6. Nf3 b6 7. cxd5 exd5 8. Rc1 c5 9. a3 Ba5 10. b4 cxb4
World Blitz 2021 – Round 2.46 – Maghsoodloo, Parham – 1/2-1/2 – Donchenko, Alexander – G103 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd2 b6 6. Nf3 d5 7. cxd5 exd5 8. Rc1 Bb7 9. Bd3 Re8 10. O-O Bf8
World Blitz 2021 – Round 4.25 – Maghsoodloo, Parham – 1-0 – Volokitin, Andrei – G213 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd2 b6 6. Nf3 Bb7 7. Rc1 c5 8. dxc5 Bxc5 9. a3 d5 10. Qc2 Nc6
World Blitz 2021 – Round 9.57 – Bluebaum, Matthias – 1/2-1/2 – Sargsyan, Shant – G551 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd2 d5 6. Nf3 b6 7. cxd5 exd5 8. Bd3 c5 9. h3 Nc6 10. a3 Bxc3
World Blitz 2022 – Round 1.10 – Vachier-Lagrave, Maxime – 1-0 – Hambleton, Aman – G2 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd2 d5 6. Nf3 Re8 7. Rc1 Nbd7 8. Qb3 Bxc3 9. Bxc3 c6 10. Bd3 Ne4
World Blitz 2022 – Round 20.28 – Bluebaum, Matthias – 0-1 – Yakubboev, Nodirbek – G1059 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd2 d5 6. Nf3 b6 7. cxd5 exd5 8. Rc1 a6 9. Bd3 Bd6 10. O-O Re8
World Blitz 2023 – Round 1.60 – Matyakubov, Miraziz – 0-1 – Pranav, V – G59 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd2 b6 6. Nf3 Bb7 7. Bd3 d6 8. Qc2 Nbd7 9. O-O e5 10. Ng5 g6
World Blitz 2023 – Round 12.97 – Matyakubov, Miraziz – 0-1 – Zilka, Stepan – G728 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd2 d5 6. Nf3 c5 7. a3 Bxc3 8. Bxc3 Ne4 9. Rc1 Nxc3 10. Rxc3 cxd4
World Blitz 2023 – Round 20.59 – Grebnev, Aleksey – 1-0 – Vrolijk, Liam – G1163 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd2 d5 6. Nf3 b6 7. cxd5 exd5 8. Bd3 Re8 9. O-O Bd6 10. Nb5 Bf8
World Blitz 2023 – Round 7.35 – Grebnev, Aleksey – 1-0 – Pranav, V – G413 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd2 b6 6. Nf3 Bb7 7. Bd3 d6 8. O-O Nbd7 9. a3 Bxc3 10. Bxc3 Ne4
World Blitz 2023 – Round 8.35 – Seemann, Jakub – 0-1 – Ponkratov, Pavel – G469 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd2 Re8 6. Nf3 d5 7. cxd5 exd5 8. Bd3 c6 9. O-O Bg4 10. h3 Bh5
World Rapid 2019 – Round 1.6 – Gasanov, Eldar – 0-1 – Aronian, Levon – G47 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd2 d5 6. Nf3 Nbd7 7. Rc1 Re8 8. Qc2 a6 9. Bd3 dxc4 10. Bxc4 b5
World Rapid 2019 – Round 10.17 – Adhiban, B. – 1/2-1/2 – Gelfand, Boris – G627 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd2 c5 6. a3 Bxc3 7. Bxc3 Ne4 8. Rc1 d6 9. Bd3 Nxc3 10. Rxc3 Nc6
World Rapid 2019 – Round 11.13 – Rakhmanov, Aleksandr – 1/2-1/2 – Sargissian, Gabriel – G690 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd2 d5 6. Nf3 b6 7. cxd5 exd5 8. Rc1 Bb7 9. Bd3 Be7 10. O-O c5
World Rapid 2019 – Round 2.72 – Adhiban, B. – 1-0 – Potapov, Pavel – G141 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd2 d5 6. Nf3 b6 7. cxd5 exd5 8. Rc1 Bb7 9. Bd3 c5 10. Ne5 Nbd7
World Rapid 2019 – Round 4.38 – Adhiban, B. – 1-0 – Samsonkin, Artiom – G251 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd2 a5 6. a3 Bxc3 7. Bxc3 Ne4 8. Rc1 Qe7 9. Bd3 Nxc3 10. Rxc3 d6
World Rapid 2019 – Round 4.76 – Bluebaum, Matthias – 1-0 – Batchuluun, Tsegmed – G286 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd2 d5 6. Nf3 b6 7. cxd5 exd5 8. Rc1 Bb7 9. Bd3 Nbd7 10. O-O Re8
World Rapid 2021 – Round 3.68 – Peng, Li Min – 1-0 – Vokhidov, Shamsiddin – G189 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd2 b6 6. Nf3 d5 7. cxd5 exd5 8. Bd3 Ba6 9. Bxa6 Nxa6 10. O-O Qc8

E46a —

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O

Eval: [+0.13]

Les coups candidats

5.Bd3 — 63.7% (29696 parties) →

Ambassadeurs : Aleksandrov Ivanchev, Aleksandar (140x), Peralta, Fernando (134x), Gligoric, Svetozar (101x), Knaak, Rainer (87x), Donner, Jan-Hein (81x), Farago, Ivan (73x), Portisch, Lajos (71x), Gligorić, Svetozar (69x)

5.Ne2 — 23.6% (10976 parties) →

Ambassadeurs : Guliev, Sarhan (45x), Aleksandrov Ivanchev, Aleksandar (42x), Swayams, Mishra (41x), Taimanov, Mark (32x), Sharpe, Sam (32x), Sowray, Peter J (32x), Cumming, David R (32x), Reshevsky, Samuel (27x)

5.Nf3 — 5.8% (2684 parties) →

Ambassadeurs : Korchnoi, Viktor (25x), Kolanek, Roman (20x), Swahnberg, Lars (17x), Rakhmanov, Aleksandr (17x), Vaisser, Anatoly (14x), Portisch, Lajos (13x), ? (12x), Shengelia, David (12x)

5.Bd2 — 4.4% (2059 parties)

Ambassadeurs : Aczel, Gergely (67x), Chanda, Sandipan (64x), Bluebaum, Matthias (26x), Grebnev, Aleksey (22x), Charochkina, Daria (20x), Zakhartsov, Vladimir (17x), Maghsoodloo, Parham (15x), Gungl, Theo (14x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	5.Bd3	5.Ne2	5.Nf3	5.Bd2
<1800	732	67%	19%	10%	2%
1800-2200	11191	61%	27%	7%	3%
2200-2600	25372	63%	25%	4%	6%
2600+	2161	69%	17%	3%	7%

Évolution par décennie (% des parties)

Décennie	N parties	5.Bd3	5.Ne2	5.Nf3	5.Bd2
1850s	1	—	—	100%	—
1910s	1	100%	—	—	—
1920s	14	43%	36%	7%	7%
1930s	118	67%	27%	3%	—
1940s	256	71%	12%	3%	—
1950s	1031	70%	18%	7%	0%
1960s	1365	64%	17%	16%	0%
1970s	1231	78%	13%	7%	—
1980s	2035	70%	20%	7%	0%
1990s	4240	69%	21%	7%	0%
2000s	8384	67%	23%	7%	0%
2010s	18904	61%	31%	4%	1%
2020s	9026	59%	14%	5%	19%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
5.Bd3	61%	59%	▼ -2.7%
5.Ne2	31%	14%	▼ -17.0%
5.Nf3	4%	5%	+0.2%
5.Bd2	1%	19%	▲ +17.6%

Joueurs célèbres

Champions du monde dans cette position

Botvinnik, Mikhail — 10 parties
Euwe, Max — 10 parties
Smyslov, Vladimir — 10 parties
Tal, Mikhail — 10 parties
Karpov, Anatoly — 10 parties
Karpov, Aleksandr — 10 parties
Kasparov, Garry — 10 parties
Kramnik, Vladimir — 10 parties
Anand, Viswanathan — 10 parties
Carlsen, Magnus — 10 parties
Hou, Yifan — 10 parties
Ju, Wenjun — 10 parties
Ding, Liren — 10 parties
Gukesh D — 10 parties
Alekhine, Alexander — 6 parties

Parties historiques

5.Bd3 — 63.7% (29696 parties)

1916 — Rabinovich, Ilya Mar vs Bogoljubow, Efim — 1-0 — Triberg VI
1921 — Alekhine, Alexander vs Bogoljubow, Efim — 1/2-1/2 — Triberg
1924 — Van Kranendonk, AG. vs Kroone, Gerard — 0-1 — NED
1926 — Johner, Paul vs Nimzowitsch, Aron — 0-1 — Dresden GER
1927 — Mueller, Hans vs Takacs, Sandor — 1/2-1/2 — Vienna AUT

5.Ne2 — 23.6% (10976 parties)

1925 — Rubinstein, Akiba vs Saemisch, Friedrich — 1-0 — Moscow RUS
1926 — Rubinstein, Akiba vs Rosselli del Turco, Stefano — 1-0 — Semmering AUT
1928 — Kostic, Boris vs Reti, Richard — 0-1 — ?
1928 — Johner, Paul vs Reti, Richard — 1-0 — 1.Internationales Turnier
1928 — Rubinstein, Akiba vs Yates, Frederic D — 1/2-1/2 — Bad Kissingen GER

5.Nf3 — 5.8% (2684 parties)

1851 — Cochrane, John Miles vs Bonnerjee, Mohishunder — 1-0 — Calcutta IND
1926 — Bogoljubow, Efim vs Saemisch, Friedrich — 1/2-1/2 — Munich GER
1935 — Korody Keresztely, Imre vs Steiner, Endre — 1/2-1/2 — Tatatovaros
1938 — Reshevsky, Samuel vs Alekhine, Alexander — 1/2-1/2 — Nederland
1939 — Landau, Salo vs Euwe, Max — 1/2-1/2 — Amsterdam m ch-NED

5.Bd2 — 4.4% (2059 parties)

1926 — Villegas, Benito vs Alekhine, Alexander — 0-1 — Buenos Aires ARG
1952 — Germek, Nikolay vs Karaklajic, Dimitrije — 1/2-1/2 — Belgrade SRB
1955 — Urbanec, Karel vs Kozma, Julius — 1/2-1/2 — Prague CZE
1962 — Soos, Bela vs Gheorghiu, Florin — 1/2-1/2 — Romania
1966 — Magrin, Antonio vs Watzka, Horst — 1/2-1/2 — Venice ITA

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