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	● f4 (2v0)	—
Cases faibles	—	—
Centre	● d4 (1v0), ● e5 (1v0)	● d5 (1v0), ● e4 (1v0)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Bf1	● Bf1 Non développé (mob. 2)
Bc8		● Bc8 Non développé (mob. 0)
Bf8		● Bf8 Non développé (mob. 2)
Paire de fous	● Oui	● Oui
Non développées	6 (● b1, ● g1, ● c1, ● f1, ● a1, ● h1)	5 (● b8, ● c8, ● 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	mobile
Ruptures	—	● …c7-c5, ● …e7-e5

A45h — Indian: 2.g3 g6

1.d4 Nf6 2.g3 g6 * ○ Trait aux Blancs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plans. Bg2 (Fianchetto, fou sur la grande diagonale — 96 % des parties) ; c4 (Frapper le centre adverse — 2 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plans. ...Bg7 (Fianchetto, fou sur la grande diagonale — 82 % des parties) ; ...d5 (Occuper le centre — 16 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Partie
1935 Tartu TT – Round 12 – Schulmann A – 0-1 – Keres Paul Petrovich – G8 1. d4 Nf6 2. g3 g6 3. Bg2 Bg7 4. e3 O-O 5. Ne2 d5 6. Nbc3 c6 7. O-O Nbd7 8. e4 dxe4 9. Nxe4 Nxe4 10. Bxe4 e5
1938 URS Ch, semi final – Round 1 – Pogrebissky, Iosif – 1/2-1/2 – Kopaev, Nikolay A – G12 1. d4 Nf6 2. g3 g6 3. Bg2 Bg7 4. e4 O-O 5. Nc3 c5 6. d5 e5 7. Be3 d6 8. f3 Bd7 9. Qd2 b5 10. Nge2 a5
1952 Hungary Ch – Round 10 – Bakonyi, Elek – 0-1 – Koberl, Ferenc – G59 1. d4 Nf6 2. g3 g6 3. Bg2 Bg7 4. e4 d6 5. Ne2 O-O 6. O-O e5 7. d5 c5 8. c4 Nh5 9. Nbc3 Nd7 10. Bd2 a6
1953 Bariloche – Round 1 – Jauregui, Carlos – 1-0 – Wexler, Francisco – G7 1. d4 Nf6 2. g3 g6 3. Bg2 Bg7 4. e4 d6 5. Ne2 O-O 6. O-O e5 7. c3 Nc6 8. h3 Qe7 9. Qc2 Re8 10. Nd2 Nh5
1953 Bariloche – Round 1 – Jauregui, Carlos – 1/2-1/2 – Ader, B. – G8 1. d4 Nf6 2. g3 g6 3. Bg2 Bg7 4. e4 d6 5. Ne2 O-O 6. O-O c5 7. c3 cxd4 8. cxd4 Nc6 9. Nbc3 Bd7 10. h3 a6
1953 Toronto CC Ch – Round 6 – Orlando, Roy – 1-0 – Sarosy, Zoltan L – G6 1. d4 Nf6 2. g3 g6 3. Bg2 Bg7 4. e4 d6 5. Ne2 O-O 6. O-O Nbd7 7. f4 e6 8. c4 c5 9. Nbc3 cxd4 10. Nxd4 a6
1957 GBR Ch 44th – Round 11.5 – Abrahams, Gerald – 0-1 – Cafferty, Bernard – G48 1. d4 Nf6 2. g3 g6 3. Bg2 Bg7 4. e4 d6 5. Ne2 O-O 6. O-O e5 7. c3 Re8 8. f3 exd4 9. cxd4 c5 10. d5 Nbd7
1960 Poland Ch – Round 1 – Tarnowski, Alfred – 0-1 – Bednarski, Jacek – G12 1. d4 Nf6 2. g3 g6 3. Bg2 Bg7 4. e4 O-O 5. Ne2 d6 6. O-O e5 7. c3 c6 8. Nd2 Qc7 9. Qc2 Bg4 10. f3 Be6
1961 ROM Ch – Round 14 – Urseanu, Veniamin – 1/2-1/2 – Gunsberger, Alexander – G89 1. d4 Nf6 2. g3 g6 3. Bg2 Bg7 4. e4 d6 5. Ne2 O-O 6. O-O e5 7. Nbc3 Nbd7 8. h3 exd4 9. Nxd4 c6 10. Re1 Re8
1962 Capablanca Memorial – Round 14 – Abad Gonzalez, Jose Miguel – 0-1 – Ciocaltea, Victor – G134 1. d4 Nf6 2. g3 g6 3. Bg2 Bg7 4. e4 d6 5. Ne2 O-O 6. h3 e5 7. O-O exd4 8. Nxd4 Re8 9. Nc3 Nbd7 10. Kh2 c6
1962 Capablanca Memorial – Round 8 – Abad Gonzalez, Jose Miguel – 1-0 – Perez Perez, Francisco Jose – G71 1. d4 Nf6 2. g3 g6 3. Bg2 Bg7 4. e4 O-O 5. Nc3 d6 6. Nge2 c6 7. h3 Na6 8. Bg5 Qa5 9. Qd2 Re8 10. O-O Nc7
1962 Erevan ch-URS – Round 1 – Mikenas, Vladas – 1-0 – Savon, Vladimir – G23 1. d4 Nf6 2. g3 g6 3. Bg2 Bg7 4. e4 O-O 5. Nc3 c5 6. dxc5 Qa5 7. Ne2 Qxc5 8. O-O Nc6 9. Be3 Qa5 10. Nd4 Ng4
1962 Kiev (Ukraine) – Round 11 – Kostiuchenko, Alexander – 1/2-1/2 – Shianovsky, Vladislav I – G21 1. d4 Nf6 2. g3 g6 3. Bg2 Bg7 4. e4 O-O 5. Nc3 d6 6. Nf3 Bg4 7. h3 Bxf3 8. Qxf3 Nc6 9. Ne2 e5 10. dxe5 dxe5
1962 Poznan ch POL – Round 4 – Tarnowski, Alfred – 0-1 – Gawlikowski, Stanislaw – G20 1. d4 Nf6 2. g3 g6 3. Bg2 Bg7 4. e4 d6 5. Ne2 O-O 6. O-O e5 7. c3 c6 8. Nd2 Be6 9. b3 c5 10. Bb2 b6
1962 URS-JUG2 – Round ? – Tukmakov, Vladimir B – 1-0 – Nemet, Ivan – G13 1. d4 Nf6 2. g3 g6 3. Bg2 Bg7 4. e4 d6 5. Ne2 O-O 6. O-O e5 7. Nbc3 Nc6 8. d5 Ne7 9. f4 Ne8 10. fxe5 dxe5
1962 Whitby ch-BCF – Round 1 – Wade, Robert G – 1-0 – Daniel Epangello Thomson – G4 1. d4 Nf6 2. g3 g6 3. Bg2 Bg7 4. e4 d6 5. Nc3 O-O 6. Nge2 c6 7. O-O a5 8. h3 Na6 9. Be3 Nd7 10. f4 Rb8
1963 Bath ch-BCF – Round 1 – Parr, Frank – 0-1 – Littlewood, Norman – G5 1. d4 Nf6 2. g3 g6 3. Bg2 Bg7 4. e4 d6 5. Ne2 O-O 6. O-O c5 7. c3 Nc6 8. d5 Ne5 9. a4 Qb6 10. f4 Nc4
1963 POL Ch 20th – Round 1 – Tarnowski, Alfred – 1/2-1/2 – Drozd, Ryszard – G4 1. d4 Nf6 2. g3 g6 3. Bg2 Bg7 4. e4 d6 5. Ne2 e5 6. dxe5 dxe5 7. Qxd8+ Kxd8 8. b3 c6 9. Bb2 Nbd7 10. Nd2 Kc7
1963 Split ol women – Round 3 – Perevoznic, Margareta – 1/2-1/2 – Zatulovskaya, Tatiana – G7 1. d4 Nf6 2. g3 g6 3. Bg2 Bg7 4. e4 d6 5. Ne2 O-O 6. O-O c5 7. dxc5 dxc5 8. Qxd8 Rxd8 9. Nbc3 Nc6 10. Be3 Nd4
1964 ARG Ch – Round 11 – Calneggia, Raul – 1/2-1/2 – Rubinetti, Jorge – G51 1. d4 Nf6 2. g3 g6 3. Bg2 Bg7 4. e4 d6 5. Ne2 O-O 6. O-O Nbd7 7. f4 e5 8. c3 c6 9. h3 exd4 10. cxd4 d5
1964 Budapest Ch – Round 1 – Navarovszky, Laszlo – 1/2-1/2 – Ozsvath, Andras – G11 1. d4 Nf6 2. g3 g6 3. Bg2 Bg7 4. e4 d6 5. Nc3 O-O 6. Nge2 Nbd7 7. O-O e5 8. a4 Re8 9. a5 c6 10. h3 Nf8
1964 Tel Aviv olm – Round 1 – Bernal Pinzon, Fabian Camilo – 1-0 – Hindle, Owen M – G37 1. d4 Nf6 2. g3 g6 3. Bg2 Bg7 4. e4 d6 5. Ne2 O-O 6. O-O c6 7. a4 Nbd7 8. Nbc3 e5 9. h3 exd4 10. Nxd4 Re8
1965 Hastings ch-BCF – Round 1 – Parr, Frank – 1/2-1/2 – Hindle, Owen M – G4 1. d4 Nf6 2. g3 g6 3. Bg2 Bg7 4. e4 d6 5. Ne2 O-O 6. O-O c6 7. c3 e5 8. h3 Qe7 9. Qc2 Re8 10. Nd2 Nbd7
1965 Hungary – Round 1 – Kovacs, Laszlo M – 1-0 – Polgar, Istvan – G31 1. d4 Nf6 2. g3 g6 3. Bg2 Bg7 4. e4 d6 5. Ne2 O-O 6. O-O Nbd7 7. h3 c5 8. c3 Re8 9. Be3 Qc7 10. Nd2 e5
1965 POL Ch 22th – Round 13 – Tarnowski, Alfred – 1/2-1/2 – Fabian Henryk – G71 1. d4 Nf6 2. g3 g6 3. Bg2 Bg7 4. e4 d6 5. Ne2 O-O 6. O-O e5 7. c3 Nc6 8. f4 Bg4 9. Be3 Nh5 10. fxe5 dxe5
1965 POL Ch 22th – Round 9 – Tarnowski, Alfred – 1/2-1/2 – Filipowicz, Andrzej – G48 1. d4 Nf6 2. g3 g6 3. Bg2 Bg7 4. e4 d6 5. Ne2 O-O 6. O-O Nbd7 7. c3 c5 8. f4 Rb8 9. a4 a6 10. h3 b5
1965 POL Ch 23th sf – Round 3 – Tarnowski, Alfred – 1/2-1/2 – Pietrusiak, Bogdan – G7 1. d4 Nf6 2. g3 g6 3. Bg2 Bg7 4. e4 d6 5. Ne2 O-O 6. O-O e5 7. c3 Nc6 8. f4 exd4 9. cxd4 Bg4 10. Nbc3 Nd7
1967 FRG Ch Kiel GER – Round 1 – Gerusel, Mathias – 0-1 – Teufel, Juergen – G1 1. d4 Nf6 2. g3 g6 3. Bg2 Bg7 4. e4 d6 5. Ne2 O-O 6. O-O e5 7. d5 Ne8 8. Nd2 f5 9. exf5 Bxf5 10. h3 c5
1967 FRG Ch Kiel GER – Round 12 – Eising, Johannes – 1/2-1/2 – Hecht, Hans-Joachim – G47 1. d4 Nf6 2. g3 g6 3. Bg2 Bg7 4. e4 d6 5. Nc3 O-O 6. h3 Nbd7 7. Nge2 c6 8. a4 Re8 9. O-O e5 10. a5 exd4
1968 Copenhagen ch-DEN – Round 1 – Iversen, Ralph Kock – 1/2-1/2 – Petersen, Finn – G8 1. d4 Nf6 2. g3 g6 3. Bg2 Bg7 4. e4 d6 5. Ne2 c5 6. dxc5 Qa5+ 7. Nbc3 Qxc5 8. O-O O-O 9. Be3 Qa5 10. Nf4 Nc6
1969 Castlebar Open – Round 5 – Grabow, Pouelsten Holm – 1/2-1/2 – Wade, Robert G – G16 1. d4 Nf6 2. g3 g6 3. Bg2 Bg7 4. e4 d6 5. Ne2 O-O 6. O-O c6 7. c3 Na6 8. Nd2 c5 9. Nb3 e5 10. dxc5 dxc5
1972 Skopje ol (Men) fin-A – Round 14 – Pfleger, Helmut, Dr. – 1-0 – Ghizdavu, Dumitru – G121 1. d4 Nf6 2. g3 g6 3. Bg2 Bg7 4. e4 d6 5. Ne2 O-O 6. O-O c6 7. Nd2 Qc7 8. b3 a6 9. Bb2 Nbd7 10. c4 c5
World Blitz 2015 – Round 14.39 – Huzman, Alexander – 0-1 – Guseinov, Gadir – G877 1. d4 Nf6 2. g3 g6 3. Bg2 Bg7 4. e4 d6 5. Ne2 O-O 6. Nbc3 Nbd7 7. O-O c6 8. a4 a5 9. h3 e5 10. Be3 exd4

A45h — Indian (1935)

1.d4 Nf6 2.g3 g6

Les coups candidats

3.Bg2 — 95.4% (5188 parties)

Ambassadeurs : Stupak, Leonid K (71x), Hladik, Josef (41x), Matnadze Bujiashvili, Ann (41x), Elter, Sophia (32x), Vechet, Stanislav (28x), Popchev, Milko (27x), Hladik Joseph (18x), Heilemann, Manfred (16x)

3.c4 — 2.2% (121 parties) →

Ambassadeurs : Reefschlaeger, Helmut, Dr. (5x), Stockmann, Michael (4x), Terenzi, Flavio (2x), Zurita Gutierrez, Antonio (2x), Rychlik, Piotr (2x), Borisova, Ekaterina (2x), Benko, Pal (1x), Rapaka Samuel Paul (1x)

3.Nf3 — 1.7% (93 parties) →

Ambassadeurs : Kaposztas, Miklos (2x), Waltenberger, Udo (2x), Khatenever, Feliks (2x), Godoy, Daniel (1x), Rocha, Antonio (1x), Staldi, Cherubino (1x), Primavera, Giuseppe (1x), Taimanov, Mark (1x)

3.b3 — 0.2% (10 parties)

Ambassadeurs : Hauke, Christian (1x), Schmider, Bernd (1x), Bartha, Sandor (1x), Gietl, Thomas (1x), Froeling, Philippa (1x), Lein, Marina (1x), Poeltl, Thomas (1x), Karner, Christoph (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	3.Bg2	3.c4	3.Nf3	3.b3
<1800	304	90%	3%	5%	0%
1800-2200	2337	96%	2%	2%	0%
2200-2600	2158	97%	2%	1%	0%
2600+	15	100%	—	—	—

Évolution par décennie (% des parties)

Décennie	N parties	3.Bg2	3.c4	3.Nf3	3.b3
1950s	38	92%	3%	5%	—
1960s	73	96%	1%	1%	—
1970s	97	94%	5%	—	—
1980s	244	94%	3%	2%	0%
1990s	1101	97%	1%	1%	—
2000s	1567	96%	2%	1%	0%
2010s	1848	95%	2%	2%	0%
2020s	473	95%	3%	1%	0%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
3.Bg2	95%	95%	-0.3%
3.c4	2%	3%	▲ +0.9%
3.Nf3	2%	1%	▼ -0.8%
3.b3	0%	0%	+0.2%

Joueurs célèbres

Champions du monde dans cette position

Ju, Wenjun — 1 partie
Gukesh D — 1 partie

Parties historiques

3.Bg2 — 95.4% (5188 parties)

1950 — Almiron, Martin Alejandro vs Hofman, Lambert — 1/2-1/2 — Dubrovnik olm
1951 — Elstner, Rudolf vs Pietzsch, Wolfgang — 1/2-1/2 — DDR-ch Schwerin GER
1951 — Elstner, Rudolf vs Alfred, Le Bron — 1-0 — Duesseldorf GER
1951 — Ruppe, Otto vs Pietzsch, Wolfgang — 0-1 — Schwerin GER
1952 — Bakonyi, Elek vs Koberl, Ferenc — 0-1 — Hungary ch

3.c4 — 2.2% (121 parties)

1959 — Uhlmann, Wolfgang vs Bobotsov, Milko G — 1-0 — Hastings ENG
1960 — Benko, Pal vs Rapaka Samuel Paul — 0-1 — New York, NY USA
1976 — Csom, Istvan vs Rigo, Janos — 1-0 — Hungary ch
1977 — Reefschlaeger, Helmut, Dr. vs Lipski, Tadeusz — 1/2-1/2 — Ciechanow
1977 — Rogers, Ian vs Jamieson, Robert M — 0-1 — Ballarat AUS

3.Nf3 — 1.7% (93 parties)

1950 — Staldi, Cherubino vs Primavera, Giuseppe — 1/2-1/2 — Sorrento ch ITA
1950 — Taimanov, Mark vs Geller, Efim P. — 1/2-1/2 — Schiavno Zdroj
1966 — Godoy, Daniel vs Rocha, Antonio — 1/2-1/2 — Rio Hondo zt
1982 — Weltz, Elvira vs Blodig, Christine — 1/2-1/2 — Tirschenreuth
1984 — Schoebel, Wolfgang vs Larsson, Per — 0-1 — Stockholm SWE

3.b3 — 0.2% (10 parties)

1987 — Hauke, Christian vs Schmider, Bernd — 0-1 — Kraichtal U20
2000 — Poeltl, Thomas vs Karner, Christoph — 0-1 — Staatsliga B Sued
2001 — Bartha, Sandor vs Gietl, Thomas — 1-0 — Bayern
2002 — Naber, Armin vs Warnest, Stefan — 0-1 — Hilden
2003 — Froeling, Philippa vs Lein, Marina — 0-1 — Bad Zwischenahn

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