E20i — Nimzo-Indian: 4.Bd2 O-O

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Bd2 O-O * ○ Trait aux Blancs

Ouverture — Centre semi-ouvert

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Avantages : case forte b5, Bd2 actif, paire de fous.
Faiblesses adverses : Bc8 enfermé.
Problèmes : roi au centre, Bf1 enfermé, 4 pièces non développées (G1, F1, A1, H1).
Plans :
● O-O — Mettre le roi en sécurité, connecter les tours
● e4 — Centre d4+e4, menace e5, libère Bf1
● Nf3 — Développer Ng1

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Avantages : Bb4 actif, paire de fous.
Faiblesses adverses : Bf1 enfermé, roi blanc au centre.
Problèmes : Bc8 enfermé, 3 pièces non développées (B8, C8, A8).
Plans :
● ...d6 — Libérer Bc8
● ...Nc6 — Développer Nb8
● ...c5 — Rupture
● ...d5 — Rupture
● ...e5 — Rupture

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

E20i —

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Bd2 O-O

Eval: [+0.07]

Les coups candidats

5.Nf3 — 46.7% (1408 parties) →

Ambassadeurs : Lucena Cifré, Rafael José (16x), Stern, Rafael (13x), Stern, Rene (8x), Hafner, Robert (8x), Schmidt, Roland 1959 (6x), Struzka, Vlastimil (6x), Burri, Quentin (6x), Mastrovasilis, Athanasios (6x)

5.e3 — 27.8% (839 parties)

Ambassadeurs : Struzka, Vlastimil (27x), Bass Stanley (10x), Analiev, Dimitar (6x), Welling, Gerard (5x), Loik, Galina (5x), Travadon, Loic (4x), Ruben, Carl (3x), Tartakower, Savielly (3x)

5.a3 — 14.5% (438 parties)

Ambassadeurs : Schaufelberger, Heinz (14x), Djukic, Zeljko (7x), Macskasy, Elod (5x), Bass Stanley (4x), Mirzoev, Azer (4x), Ligeti, George (3x), Hvenekilde, Jorgen (3x), Petricevic, Mateo (3x)

5.Qc2 — 5.7% (173 parties)

Ambassadeurs : Fryganas, Stavros (2x), Sage, Francois (2x), Achour Daniel (2x), Astengo, Marcello (2x), Koops, Maris (2x), Mayes, Frederick John (2x), Hardwick, Martin E (2x), Dragoumis, Al (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	5.Nf3	5.e3	5.a3	5.Qc2
<1800	268	47%	26%	15%	4%
1800-2200	1090	48%	29%	13%	6%
2200-2600	635	50%	30%	14%	3%
2600+	13	46%	31%	15%	—

Évolution par décennie (% des parties)

Décennie	N parties	5.Nf3	5.e3	5.a3	5.Qc2
1880s	1	100%	—	—	—
1910s	1	—	100%	—	—
1920s	8	38%	38%	—	25%
1930s	27	22%	48%	7%	15%
1940s	11	45%	36%	—	18%
1950s	17	29%	47%	6%	18%
1960s	22	36%	32%	18%	14%
1970s	45	60%	13%	11%	11%
1980s	99	39%	23%	17%	12%
1990s	429	43%	23%	20%	7%
2000s	796	45%	27%	17%	5%
2010s	1125	48%	28%	13%	6%
2020s	435	51%	35%	10%	1%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
5.Nf3	48%	51%	▲ +2.9%
5.e3	28%	35%	▲ +7.3%
5.a3	13%	10%	▼ -3.3%
5.Qc2	6%	1%	▼ -4.5%

Joueurs célèbres

Champions du monde dans cette position

Alekhine, Alexander — 2 parties
Hou, Yifan — 2 parties
Smyslov, Vladimir — 1 partie

Parties historiques

5.Nf3 — 46.7% (1408 parties)

1883 — Englisch, Berthold vs Blackburne, Joseph — 1/2-1/2 — London ENG
1923 — Brinckmann, Alfred vs Nimzowitsch, Aron — 0-1 — Kolding
1927 — Ahues, Carl vs Nimzowitsch, Aaron — 0-1 — Berlin GER
1929 — Sapira, Emmanuel vs Rejfir, Josef — 0-1 — Hastings ENG
1931 — Duchamp, Marcel vs Noteboom, Daniel — 1/2-1/2 — Nice FRA

5.e3 — 27.8% (839 parties)

1919 — Spielmann, Rudolf vs Bogoljubow, Efim — 1/2-1/2 — Stockholm November
1925 — Tarrasch, Siegbert vs Saemisch, Friedrich — 1/2-1/2 — Breslau GER
1927 — Ruben, Carl vs Nimzowitsch, Aron — 1/2-1/2 — Copenhagen DEN
1927 — Ruben, Carl vs Nimzowitsch, Aron — 1/2-1/2 — Copenhagen - Politik
1930 — Nielsen, Hartvig vs Ruben, Carl — 1-0 — Svendborg

5.a3 — 14.5% (438 parties)

1932 — Negyesy, Gyorgy vs Steiner, Endre — 0-1 — Budapest HUN
1932 — Sterk, Karoly vs Joyeux Steiner, Gael — 1/2-1/2 — Budapest HUN
1957 — Macskasy, Elod vs Anderson, Frank Ross — 0-1 — Vancouver BC CAN
1961 — Nute, Gary vs Barry Bertomeu, Enrique — 0-1 — New England
1961 — Macskasy, Elod vs Grimshaw, David — 0-1 — Brockville

5.Qc2 — 5.7% (173 parties)

1922 — Saemisch, Friedrich vs Przepiorka, Dawid — 1-0 — Bad Pistyan CZE
1928 — Tartakower, Savielly vs Marshall Viele, Fabrizio Aaron — 1-0 — Berlin GER
1931 — Alekhine, Alexander vs Kondic Cacan, Lazar — 0-1 — Beograd simultaan
1932 — Baratz, Abraham vs Fryganas, Stavros — 0-1 — Paris FRA
1936 — Myhre, Erling vs Olsen, Odd Anders — 1/2-1/2 — Glostrup

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

Cases

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

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bf1	● Bf1 Non développé (mob. 0)
Bd2	● Bd2 Actif (mob. 5)
Bb4		● Bb4 Actif (mob. 6)
Bc8		● Bc8 Non développé (mob. 0)
Paire de fous	● Oui	● Oui
Non développées	4 (g1, 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, ● e2-e3, ● f2-f3	● …c7-c6, ● …c7-c5, ● …d7-d6, ● …d7-d5, ● …e6-e5

Partie
1922 Bad Pistyan Breyer Memorial-A – Round 9 – Saemisch, Friedrich – 1-0 – Przepiorka, Dawid – G25 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bd2 O-O 5. Qc2 d5 6. e3 c5 7. Nf3 Nc6 8. a3 cxd4 9. exd4 Bxc3 10. Bxc3 Ne4
1925 DSB-24.Kongress – Round 8 – Tarrasch, Siegbert – 1/2-1/2 – Saemisch, Friedrich – G29 1. c4 Nf6 2. d4 e6 3. Nc3 Bb4 4. Bd2 O-O 5. e3 b6 6. Qf3 d5 7. Bd3 Bb7 8. Nh3 Nbd7 9. cxd5 exd5 10. Nf4 c6
1928 Berlin Tageblatt – Round 1 – Tartakower, Savielly – 1-0 – Marshall Viele, Fabrizio Aaron – G9 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bd2 O-O 5. Qc2 d5 6. e3 Nbd7 7. Bd3 c5 8. a3 Bxc3 9. Bxc3 cxd4 10. Bxd4 e5
1930 Hamburg olm – Round 1 – Anderson Anderson, Jose Guillermo – 0-1 – Steiner, Endre – G5 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bd2 O-O 5. f3 d5 6. Qc2 Nc6 7. e3 e5 8. dxe5 Nxe5 9. Nxd5 Nxd5 10. cxd5 c6
1930 San Remo – Round ? – Alekhine, Alexander – 1-0 – Kmoch, Hans – G118 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bd2 O-O 5. e3 d5 6. Nf3 c5 7. a3 Bxc3 8. Bxc3 Ne4 9. Rc1 Nxc3 10. Rxc3 cxd4
1931 Buenos Aires – Round 2 – Querencio, Carlos – 1/2-1/2 – Villegas, Benito – G32 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bd2 O-O 5. e3 d6 6. Nf3 Nc6 7. a3 Bxc3 8. Bxc3 Ne4 9. Qc2 Nxc3 10. Qxc3 Qf6
1932 Budapest – Round 1 – Negyesy, Gyorgy – 0-1 – Steiner, Endre – G11 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bd2 O-O 5. a3 Be7 6. e4 Nc6 7. Be3 e5 8. d5 Nb8 9. Bd3 a5 10. f3 Na6
1932 Budapest – Round 1 – Sterk, Karoly – 1/2-1/2 – Joyeux Steiner, Gael – G12 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bd2 O-O 5. a3 Be7 6. e4 Nc6 7. Be3 e5 8. d5 Nb8 9. Bd3 a5 10. f3 Na6
1935 Warsaw POL – Round 14 – Eliskases, Erich – 1/2-1/2 – Szabo, Laszlo – G86 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bd2 O-O 5. e3 b6 6. Bd3 Bb7 7. Nf3 Bxc3 8. Bxc3 Ne4 9. Qc2 f5 10. O-O d6
1938 Ljubljana – Round 2 – Tartakower, Savielly – 1/2-1/2 – Preinfalk, Anton – G21 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bd2 O-O 5. e3 d5 6. Nf3 c5 7. dxc5 Bxc5 8. Be2 Nc6 9. O-O dxc4 10. Bxc4 e5
1943 Prague – Round 5 – Urbanec, Karel – 1-0 – Opocensky, Karel – G36 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bd2 O-O 5. e3 d5 6. Nf3 Nbd7 7. Bd3 Qe7 8. Qc2 dxc4 9. Bxc4 e5 10. a3 exd4
1944 Mar del Plata – Round 11 – Puiggros, Guillermo – 1-0 – Concepcion Villegas, Bryan Uriel – G87 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bd2 O-O 5. e3 d6 6. Bd3 Nc6 7. a3 Bxc3 8. Bxc3 e5 9. d5 Ne7 10. Qc2 h6
1946 JUG Ch – Round 4 – Tot, Bora – 1-0 – Kindij Igor – G12 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bd2 O-O 5. e3 d6 6. Bd3 e5 7. Nge2 c5 8. O-O Nc6 9. d5 Ne7 10. Ng3 Bxc3
1950 Southsea – Round 1 – Tartakower, Savielly – 1-0 – Barden, Leonard – G2 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bd2 O-O 5. e3 d5 6. Nf3 b6 7. cxd5 exd5 8. Bd3 Nbd7 9. O-O Re8 10. Bb5 Bxc3
1950 Southsea – Round 9 – Tartakower, Savielly – 1-0 – Barden, Leonard – G38 1. c4 Nf6 2. d4 e6 3. Nc3 Bb4 4. Bd2 O-O 5. e3 d5 6. Nf3 b6 7. cxd5 exd5 8. Bd3 Nbd7 9. O-O Re8 10. Bb5 Bxc3
1954 Lodz ch POL – Round 4 – Grynfeld, Ignacy – 1/2-1/2 – Sliwa, Bogdan – G2 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bd2 O-O 5. e3 d5 6. Bd3 c5 7. dxc5 Nbd7 8. cxd5 Nxc5 9. Bc2 exd5 10. Nf3 Bg4
1954 Prague zt – Round 4 – Balanel, Ion – 1/2-1/2 – Sliwa, Bogdan – G20 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bd2 O-O 5. e3 d5 6. Nf3 Re8 7. Bd3 Nbd7 8. O-O Bd6 9. Rc1 c6 10. e4 dxe4
1958 Hoogovens – Round 5 – Bouwmeester, Hans – 1/2-1/2 – Milic, Bozidar – G19 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bd2 O-O 5. e3 b6 6. Nf3 Bb7 7. Bd3 d5 8. cxd5 exd5 9. O-O Nbd7 10. Qc2 c5
1960 It (Men) Beverwijk NED – Round 1 – Flohr, Salo – 1/2-1/2 – Petrosian, Tigran A. – G1 1. c4 e6 2. d4 Nf6 3. Nc3 Bb4 4. Bd2 O-O 5. e3 b6 6. Nf3 Bb7 7. Be2 d6 8. O-O Nbd7 9. a3 Bxc3 10. Bxc3 Ne4
1960 ITA-HUN – Round 1 – Bruzzi, S. – 1/2-1/2 – Lengyel, Laszlo – G4 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bd2 O-O 5. e3 b6 6. Bd3 Bb7 7. Nf3 Bxc3 8. Bxc3 Ne4 9. Qc2 f5 10. O-O-O d6
1961 CAN Ch – Round 3 – Macskasy, Elod – 0-1 – Grimshaw, David – G7 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bd2 O-O 5. a3 Bxc3 6. Bxc3 Ne4 7. Qc2 f5 8. e3 b6 9. O-O-O Bb7 10. Be1 d5
1963 Split ol women – Round 11 – Loeffler, Louise – 0-1 – Keller-Hermann, Edith – G36 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bd2 O-O 5. e3 c5 6. dxc5 Bxc5 7. a3 b6 8. Nf3 Bb7 9. Be2 Nc6 10. b4 Be7
1964 Tel Aviv olm fin-A – Round 9 – Macskasy, Elod – 0-1 – Zuidema, Coen – G194 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bd2 O-O 5. a3 Bxc3 6. Bxc3 Ne4 7. Qc2 f5 8. e3 b6 9. O-O-O Nxc3 10. Qxc3 Bb7
1967 Corr – Round ? – Hemmingsen Knud – 0-1 – Korning, Peter – G4 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bd2 O-O 5. Qc2 d5 6. e3 b6 7. cxd5 exd5 8. Bd3 Bb7 9. Nge2 a6 10. a3 Bd6
1968 CSR Ch – Round 8 – Kavalek, Lubomir – 1-0 – Jansa, Vlastimil – G64 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bd2 O-O 5. e3 b6 6. Qf3 Nc6 7. a3 Bd6 8. Bd3 Bb7 9. Qh3 Na5 10. Nge2 Nb3
1969 Toronto Closed reserves 1 – Round 4 – Jurman, Hans – 0-1 – Sarosy, Zoltan L – G4 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bd2 O-O 5. e3 d5 6. Nf3 Nbd7 7. Bd3 dxc4 8. Bxc4 c5 9. O-O cxd4 10. exd4 a6
Interpolis 1989 – Round 5 – Agdestein, Simen – 1/2-1/2 – Hjartarson, Johann – G18 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bd2 O-O 5. a3 Bxc3 6. Bxc3 b6 7. e3 Ne4 8. Qc2 Bb7 9. O-O-O Nxc3 10. Qxc3 c5
World Blitz 2023 – Round 13.12 – Radjabov, Teimour – 1/2-1/2 – Narayanan, Sunilduth Lyna – G732 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bd2 O-O 5. Rc1 d5 6. e3 Nbd7 7. Nf3 c6 8. Qc2 Bd6 9. Be2 dxc4 10. Bxc4 b5

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