A48c — Neo-King’s Indian

1.d4 Nf6 2.Nf3 g6 3.e3 Bg7 * ○ 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 e5 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, les fous c1 et f1 et les tours a1 et h1).

Plans. O-O (Mettre le roi en sécurité, connecter les tours) ; Nbd2 (Développer Nb1) ; Bd2 (Développer Bc1) ; Bd3 (Développer Bf1) ; h3 (Empêcher ...Bg4).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Atouts. Les Noirs s'appuient sur 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 c8 et les tours a8 et h8).

Plans. O-O (Mettre le roi en sécurité, connecter les tours) ; ...d6 (Libérer Bc8) ; ...Nc6 (Développer Nb8) ; ...Bg4 (Clouer Nf3) ; ...c5 (Rupture).

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● f2→e3, e3→d4	● f7→g6, h7→g6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● e5 (2v0)	—
Cases faibles	—	—
Centre	● d4 (3v0), ● e5 (2v0)	● d5 (1v0), ● e4 (1v0)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 1)
Bf1	● Bf1 Non développé (mob. 5)
Bg7		● Bg7 Enfermé (mob. 2)
Bc8		● Bc8 Non développé (mob. 0)
Paire de fous	● Oui	● Oui
Non développées	5 (b1, c1, 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, ● d4-d5, ● e3-e4	● …c7-c6, ● …c7-c5, ● …d7-d6, ● …d7-d5, ● …e7-e6, ● …e7-e5

Partie
1920 BCF Ch 13. Major Open – Round 10 – Speijer, Abraham – 1-0 – Price, Hubert E – G9 1. d4 Nf6 2. Nf3 g6 3. e3 Bg7 4. Nbd2 d6 5. b3 Nbd7 6. Bb2 O-O 7. Be2 b6 8. O-O Bb7 9. c4 Re8 10. Qc2 e5
1922 Londen – Round 5 – Morrison, John – 1-0 – Euwe, Max – G20 1. d4 Nf6 2. Nf3 g6 3. e3 Bg7 4. Bd3 d6 5. Nbd2 Nbd7 6. b3 O-O 7. Bb2 e5 8. dxe5 Ng4 9. h3 Ngxe5 10. Nxe5 Nxe5
1922 Londen – Round 7 – Morrison, John – 0-1 – Reti, Richard – G26 1. d4 Nf6 2. Nf3 g6 3. e3 Bg7 4. Be2 O-O 5. O-O b6 6. Nbd2 Bb7 7. c4 d6 8. Qc2 Nbd7 9. b3 e5 10. Bb2 Qe7
1922 London ENG – Round ? – Atkins, Henry Ernest – 0-1 – Euwe, Max – G8 1. d4 Nf6 2. Nf3 g6 3. e3 Bg7 4. b3 d6 5. Bb2 O-O 6. Bd3 Nbd7 7. O-O e5 8. Be2 Re8 9. c4 e4 10. Nfd2 c6
1923 Northern Counties Premier – Round 3 – Wahltuch, Victor Leonard – 0-1 – Thomas, George Alan – G6 1. d4 Nf6 2. Nf3 g6 3. e3 Bg7 4. Bd3 d6 5. c3 Nc6 6. Nbd2 e5 7. O-O O-O 8. b3 Re8 9. Qc2 Qe7 10. dxe5 dxe5
1924 New York – Round 10 – Marshall Viele, Fabrizio Aaron – 1/2-1/2 – Capablanca, Jose – G71 1. d4 Nf6 2. Nf3 g6 3. e3 Bg7 4. Nbd2 b6 5. Bc4 O-O 6. Qe2 c5 7. c3 Bb7 8. O-O d5 9. Bd3 Ne4 10. Bxe4 dxe4
1925 DSB-24.Kongress – Round 1 – Avila Wagner, Juan Jose – 0-1 – Becker, Albert – G2 1. d4 Nf6 2. Nf3 g6 3. e3 Bg7 4. Bd3 O-O 5. O-O b6 6. e4 Bb7 7. Qe2 c5 8. c3 d6 9. Re1 Nc6 10. h3 cxd4
1925 DSB-24.Kongress – Round 5 – Avila Wagner, Juan Jose – 1-0 – Bluemich, Max – G18 1. d4 Nf6 2. Nf3 g6 3. e3 Bg7 4. Bd3 O-O 5. O-O d6 6. e4 Nc6 7. c3 e5 8. dxe5 dxe5 9. h3 Be6 10. Qe2 Qe7
1925 Moscow – Round 16 – Dus Chotimirsky, Fedor – 1-0 – Yates, Frederic D – G166 1. Nf3 Nf6 2. d4 g6 3. e3 Bg7 4. Bd3 d6 5. e4 Nc6 6. c3 Nd7 7. Be3 e5 8. Qd2 h6 9. Na3 a6 10. Nc2 Qe7
1926 DSV Kongress – Round 5 – Von Holzhausen, Walther – 1/2-1/2 – Bluemich, Max – G20 1. d4 Nf6 2. Nf3 g6 3. e3 Bg7 4. Bd3 O-O 5. e4 d6 6. h3 Nbd7 7. O-O c5 8. Qe2 cxd4 9. Nxd4 Nc5 10. Nb3 Nxd3
1927 London Olympiad 1st – Round 1.74 – Betbeder Matibet, Louis – 1/2-1/2 – Te Kolste, Jan Willem – G13 1. d4 Nf6 2. Nf3 g6 3. e3 Bg7 4. Bd3 d6 5. O-O O-O 6. Nbd2 Re8 7. e4 Nbd7 8. Re1 e5 9. dxe5 Nxe5 10. Nxe5 dxe5
1930 Hamburg ol (Men) – Round 7 – Prokes, Ladislav – 1-0 – Tylor, Theodore Henry – G10 1. d4 Nf6 2. Nf3 g6 3. e3 Bg7 4. Bd3 O-O 5. O-O d6 6. c3 Nbd7 7. Nbd2 e5 8. dxe5 dxe5 9. e4 Qe7 10. Re1 Nc5
1933 Trebitsch Memorial 16th – Round 4 – Palda, Karl – 0-1 – Mueller, Hans – G15 1. e3 g6 2. d4 Bg7 3. Nf3 Nf6 4. Nbd2 c5 5. Bd3 b6 6. O-O O-O 7. b3 d6 8. Bb2 Bb7 9. Qe2 Re8 10. Rfd1 Qc7
1939 Buenos Aires Circulo – Round 1 – Palau, Luis – 1-0 – Czerniak, Magdalena – G29 1. d4 Nf6 2. Nf3 g6 3. e3 Bg7 4. Bd3 O-O 5. Nbd2 d6 6. O-O Nc6 7. c3 e5 8. Qc2 Re8 9. dxe5 dxe5 10. e4 h6
1939 Buenos Aires ol prel-C – Round 5 – Kerlin, G. – 0-1 – Prins, Laura – G22 1. d4 Nf6 2. Nf3 g6 3. e3 Bg7 4. Nbd2 c5 5. c3 b6 6. Bd3 Nc6 7. Qe2 cxd4 8. exd4 d6 9. O-O O-O 10. Ne4 Nd5
1944 La Plata Jockey Club – Round 13 – Guimard, Carlos E – 0-1 – Pelikan, Jorge – G17 1. d4 Nf6 2. e3 g6 3. Nf3 Bg7 4. Nbd2 O-O 5. Bd3 d6 6. O-O Nc6 7. Re1 e5 8. c3 Nd7 9. dxe5 Nc5 10. Bb5 Nxe5
1944 Mar del Plata – Round 4 – Concepcion Villegas, Bryan Uriel – 1/2-1/2 – Pelikan, Jan – G42 1. d4 Nf6 2. Nf3 g6 3. e3 Bg7 4. Nbd2 O-O 5. b3 d6 6. Bb2 Nc6 7. Bb5 Bd7 8. c4 e5 9. Bxc6 Bxc6 10. dxe5 Ng4
1946 Buenos Aires ch-ARG – Round 16 – Rossetto, Hector – 1-0 – Lipiniks, Leonardo – G70 1. d4 Nf6 2. Nf3 g6 3. e3 Bg7 4. Bd3 O-O 5. O-O d6 6. c4 Nbd7 7. Nc3 e5 8. d5 Nc5 9. Bc2 a5 10. e4 h6
1948 Stockholm – Round 1 – Pedersen, Eigil – 0-1 – Skold, Kristian – G12 1. d4 Nf6 2. Nf3 g6 3. e3 Bg7 4. Bd3 d6 5. e4 Nbd7 6. O-O O-O 7. Bg5 h6 8. Be3 e5 9. c3 Re8 10. Qc2 d5
1948 US Open – Round 5 – Kujoth, R. – 1-0 – Evans, Larry M – G32 1. Nf3 Nf6 2. e3 g6 3. d4 Bg7 4. Bd3 O-O 5. Nbd2 d6 6. e4 Nbd7 7. O-O c5 8. d5 Qc7 9. a4 b6 10. Qe2 a6
1949 URS Ch, semi final – Round 15 – Solmanis, Zigfrids – 1-0 – Kholmov, Ratmir D – G110 1. d4 Nf6 2. Nf3 g6 3. e3 Bg7 4. Bd3 d5 5. Nbd2 O-O 6. c3 c5 7. O-O b6 8. e4 cxd4 9. e5 Nh5 10. cxd4 Nf4
1952 ARG-ch31 Mayor – Round 12 – Benko, Francisco – 1/2-1/2 – Sanchez Jose Ciro – G9 1. d4 Nf6 2. Nf3 g6 3. e3 Bg7 4. Bd3 d6 5. O-O O-O 6. Nbd2 Nbd7 7. e4 e5 8. dxe5 Nxe5 9. Nxe5 dxe5 10. Nc4 Bg4
1952 Budapest – Round 5 – Stahlberg, Gideon – 1/2-1/2 – Barcza, Gedeon – G49 1. d4 Nf6 2. Nf3 g6 3. e3 Bg7 4. Bd3 d5 5. O-O O-O 6. Nbd2 c5 7. c3 Nbd7 8. b4 cxb4 9. cxb4 Nb6 10. Bb2 Bf5
1952 JUG Ch – Round 14 – Pirc, Vasja – 1/2-1/2 – Gligorić, Svetozar – G92 1. Nf3 Nf6 2. d4 g6 3. e3 Bg7 4. Be2 O-O 5. b3 c5 6. O-O d5 7. Bb2 Nc6 8. Nbd2 cxd4 9. exd4 Bf5 10. c3 Qc7
1952 YUG Ch – Round 13 – Puc, Stojan – 0-1 – Fuderer, Andrija – G19 1. Nf3 Nf6 2. d4 g6 3. e3 Bg7 4. Be2 O-O 5. O-O d6 6. b3 Nbd7 7. Bb2 c6 8. a4 Qc7 9. c3 Rd8 10. b4 e5
1953 Buenos Aires ch-ARG – Round 1 – Pleci, Isaias – 0-1 – Wexler, Bernardo – G15 1. d4 Nf6 2. Nf3 g6 3. e3 Bg7 4. Bd3 O-O 5. Nbd2 d6 6. O-O Nbd7 7. Nc4 c5 8. a4 b6 9. c3 Bb7 10. Qe2 Ne4
1954 CSR Ch – Round 10.1 – Prucha, Karel – 0-1 – Ujtelky, Maximilian – G85 1. Nf3 Nf6 2. d4 g6 3. e3 Bg7 4. Bd3 d6 5. O-O Nbd7 6. c3 O-O 7. Qc2 c6 8. Rd1 Qc7 9. Bd2 e5 10. Be1 Re8
1954 Montevideo – Round 1.8 – Infantozzi, Julio Cesar – 0-1 – Tolush, Alexander V – G32 1. d4 Nf6 2. Nf3 g6 3. e3 Bg7 4. Bd3 O-O 5. O-O d6 6. e4 Nbd7 7. c3 e5 8. h3 Re8 9. dxe5 dxe5 10. Be3 b6
1955 EU-Cup Gr3 – Round 5.7 – Schneider, Raymond – 1/2-1/2 – Bialas, Wolfram – G13 1. d4 Nf6 2. Nf3 g6 3. e3 Bg7 4. Bd3 O-O 5. Nbd2 d6 6. e4 Nbd7 7. O-O e5 8. dxe5 dxe5 9. Nb3 a5 10. a4 b6
1955 Mar del Plata – Round 7 – Rossetto, Hector – 1-0 – Idigoras Guisasola, Gregorio – G48 1. d4 Nf6 2. Nf3 g6 3. e3 Bg7 4. Bd3 d6 5. Nbd2 O-O 6. c3 Nc6 7. Qb3 e5 8. O-O Qe7 9. Ne4 Nh5 10. dxe5 dxe5
1959 Santiago – Round 1 – Sanchez, Luis Alejandro – 1/2-1/2 – Sanguineti, Raúl Carlos – G7 1. d4 Nf6 2. Nf3 g6 3. e3 Bg7 4. Bd3 O-O 5. O-O d6 6. c4 Nbd7 7. Nc3 e5 8. Qc2 Re8 9. b3 Qe7 10. dxe5 dxe5
1959 United States Open Championship – Round 10 – Osbun, Erik – 0-1 – Herbst, Henry – G8 1. d4 Nf6 2. Nf3 g6 3. e3 Bg7 4. Bd3 O-O 5. O-O d6 6. c4 Nbd7 7. Nbd2 e5 8. Qc2 Ne8 9. dxe5 dxe5 10. Rb1 f5
1960 Buenos Aires ch-ARG – Round 7 – Reinhardt, Enrique – 1/2-1/2 – Emma, Jaime – G47 1. d4 Nf6 2. Nf3 g6 3. e3 Bg7 4. Bd3 O-O 5. O-O c5 6. Nbd2 b6 7. Qe2 Bb7 8. c3 Nd5 9. a3 cxd4 10. cxd4 d6
1960 URS Ch sf – Round 1 – Barenboim, Grigory – 0-1 – Polugaevsky, Lev – G5 1. d4 Nf6 2. Nf3 g6 3. e3 Bg7 4. Bd3 O-O 5. O-O d6 6. e4 Nc6 7. Re1 e5 8. c3 exd4 9. Nxd4 Re8 10. Bg5 h6
1961 Arlesheim int – Round 3 – Blau, Max – 1/2-1/2 – Paoli, Enrico – G9 1. Nf3 Nf6 2. d4 g6 3. e3 Bg7 4. c4 O-O 5. Be2 d6 6. O-O Nbd7 7. b3 Re8 8. Bb2 c6 9. Nbd2 e5 10. dxe5 dxe5
1961 Balcarce – Round 1 – Corti, Horacio – 0-1 – Bielicki, Carlos – G15 1. d4 Nf6 2. Nf3 g6 3. e3 Bg7 4. Bd3 d6 5. h3 O-O 6. Nbd2 Nbd7 7. O-O e5 8. c3 Re8 9. e4 Nh5 10. d5 Rf8
1961 FRG Ch Bad Prymont – Round 5 – Bialas, Wolfram – 1/2-1/2 – Unzicker, Wolfgang – G10 1. d4 Nf6 2. Nf3 g6 3. e3 Bg7 4. b3 c5 5. Bb2 cxd4 6. exd4 O-O 7. Be2 Nc6 8. O-O d5 9. Ne5 Nxe5 10. dxe5 Ne4
1962 Varna olm – Round 4 – Blau, Max – 1/2-1/2 – Olafsson, Fridrik – G123 1. d4 Nf6 2. Nf3 g6 3. e3 Bg7 4. Be2 O-O 5. O-O d5 6. c4 dxc4 7. Bxc4 c5 8. Nc3 Nbd7 9. b3 cxd4 10. Nxd4 Ne5
1963 Leningrad ch-URS – Round 1 – Bondarevsky, Igor – 0-1 – Taimanov, Mark E – G62 1. d4 Nf6 2. Nf3 g6 3. e3 Bg7 4. Be2 O-O 5. c4 d5 6. O-O b6 7. Nc3 Bb7 8. cxd5 Nxd5 9. Bd2 Nd7 10. Qb3 e6
1963 Leningrad ch-URS – Round 1 – Bondarevsky, Igor – 1/2-1/2 – Zakharov, Alexander V – G61 1. d4 Nf6 2. Nf3 g6 3. e3 Bg7 4. Be2 O-O 5. c4 c5 6. O-O cxd4 7. exd4 d5 8. c5 b6 9. cxb6 Qxb6 10. Nc3 Nc6
1964 1. division -65 – Round 5.2 – Jensen Carlo – 0-1 – Sloth, Jorn – G11 1. d4 Nf6 2. Nf3 g6 3. e3 Bg7 4. Bd3 O-O 5. Nbd2 d6 6. O-O c6 7. e4 Qc7 8. Qe2 e5 9. dxe5 dxe5 10. Rd1 Nh5
1965 Sarajevo – Round 1 – Kozomara, Vlado – 1/2-1/2 – Tringov, Georgi P – G4 1. d4 g6 2. Nf3 Bg7 3. e3 Nf6 4. Be2 O-O 5. O-O d6 6. b3 Nbd7 7. Bb2 e5 8. dxe5 Ng4 9. c4 dxe5 10. h3 Nh6
1967 Paignton Women's International – Round 3 – Rinder, Elfriede – 0-1 – Gaprindashvili, Nona – G5 1. d4 Nf6 2. Nf3 g6 3. e3 Bg7 4. Bd3 O-O 5. O-O d6 6. Nbd2 Nbd7 7. c3 e5 8. Qc2 Qe7 9. b4 Re8 10. e4 Nf8
1967 URS Team Ch – Round 1 – Kozlovskaya, Valentina – 0-1 – Gaprindashvili, Nona – G65 1. d4 Nf6 2. Nf3 g6 3. e3 Bg7 4. Be2 O-O 5. O-O d6 6. b3 Nbd7 7. c4 e5 8. Nc3 Re8 9. Qc2 Qe7 10. Ba3 e4
1975 URS Team Ch – Round 4 – Maslov, Valentin – 0-1 – Uusi, Gunnar – G214 1. d4 Nf6 2. Nf3 g6 3. e3 Bg7 4. Be2 O-O 5. O-O d6 6. c4 b6 7. Nc3 c5 8. Qc2 Nc6 9. d5 Nb4 10. Qb1 Na6
20. European Teams 2015 – Round 1.8 – Gajewski, Grzegorz – 1-0 – Kreisl, Robert – G53 1. d4 Nf6 2. Nf3 g6 3. e3 Bg7 4. Be2 c5 5. O-O cxd4 6. exd4 d5 7. h3 Nc6 8. c3 O-O 9. Bf4 Ne4 10. Nbd2 Qb6
7. London Classic 2015 – Round 2.3 – Nakamura, Hikaru – 1/2-1/2 – Vachier-Lagrave, Maxime – G8 1. d4 Nf6 2. Nf3 g6 3. e3 Bg7 4. c4 O-O 5. Be2 c5 6. d5 d6 7. Nc3 e6 8. O-O exd5 9. cxd5 Na6 10. Nd2 Rb8
FIDE World Cup 2025 – Round R2 Rapid 1 – Samuel Sevian – 1-0 – Tin Jingyao – G351 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 d5 6. Bf4 Be7 7. e3 O-O 8. Rc1 c5 9. dxc5 bxc5 10. Be2 Nbd7
GCT Blitz Paris 2018 – Round 16.3 – Karjakin, Sergey – 0-1 – Vachier-Lagrave, Maxime – G77 1. d4 Nf6 2. Nf3 g6 3. e3 Bg7 4. Be2 O-O 5. O-O b6 6. c4 Bb7 7. a3 e6 8. b4 c5 9. Bb2 d6 10. Nbd2 Nbd7
GCT Blitz Paris 2018 – Round 8.3 – Grischuk, Alexander – 1/2-1/2 – Vachier-Lagrave, Maxime – G37 1. d4 Nf6 2. Nf3 g6 3. e3 Bg7 4. Be2 O-O 5. O-O d6 6. b3 Nc6 7. Bb2 e5 8. dxe5 Ng4 9. c4 Ngxe5 10. Nc3 Re8
GCT Rapid Paris 2018 – Round 8.3 – Kramnik, Vladimir – 1/2-1/2 – Vachier-Lagrave, Maxime – G38 1. d4 Nf6 2. Nf3 g6 3. e3 Bg7 4. Be2 O-O 5. O-O d6 6. b3 e5 7. dxe5 Ng4 8. Bb2 Nc6 9. Nc3 Ngxe5 10. Qd2 Re8
GCT Rapid YourNextMove 2016 – Round 9.4 – Nakamura, Hikaru – 1-0 – Caruana, Fabiano – G44 1. Nf3 Nf6 2. e3 g6 3. d4 Bg7 4. c4 O-O 5. Be2 c5 6. d5 e6 7. Nc3 d6 8. O-O Re8 9. Nd2 Na6 10. e4 Nc7
Lindores Abbey Tal Memorial 2021 – Round 1.41 – Girya, Olga – 0-1 – Chigaev, Maksim – G36 1. d4 Nf6 2. Nf3 g6 3. e3 Bg7 4. Be2 O-O 5. O-O d6 6. c4 Nbd7 7. Nc3 e5 8. Qc2 exd4 9. Nxd4 Re8 10. b3 a5
Moscow FIDE Grand Prix 2019 – Round 3.3 – Wojtaszek, Radoslaw – 1/2-1/2 – Nepomniachtchi, Ian – G39 1. d4 Nf6 2. Nf3 g6 3. e3 Bg7 4. Be2 O-O 5. O-O d6 6. b3 e5 7. dxe5 Ng4 8. Bb2 Nc6 9. c4 Ngxe5 10. Nc3 Re8
Saint Louis Blitz 2022 – Round 14.3 – Nakamura, Hikaru – 1/2-1/2 – Mamedyarov, Shakhriyar – G68 1. Nf3 Nf6 2. e3 g6 3. d4 Bg7 4. c4 O-O 5. Be2 d6 6. O-O Bf5 7. b3 e5 8. Bb2 Nc6 9. Nbd2 exd4 10. Nxd4 Nxd4
World Blitz 2015 – Round 5.31 – Kryvoruchko, Yuriy – 1-0 – Maroroa Jones, Gawain C B – G299 1. Nf3 g6 2. d4 Nf6 3. e3 Bg7 4. Be2 O-O 5. O-O d6 6. c4 Nc6 7. d5 Ne5 8. Nxe5 dxe5 9. Nc3 e6 10. e4 Qe7
World Blitz 2016 – Round 9.21 – Wojtaszek, Radoslaw – 1-0 – Volokitin, Andrei – G355 1. Nf3 Nf6 2. d4 g6 3. e3 Bg7 4. Be2 O-O 5. O-O c5 6. dxc5 Qa5 7. a3 Qxc5 8. b4 Qc7 9. Bb2 d5 10. Nbd2 Bg4
World Rapid 2021 – Round 6.3 – Anton Guijarro, David – 1/2-1/2 – Giri, Anish – G343 1. d4 Nf6 2. Nf3 g6 3. e3 Bg7 4. Be2 O-O 5. O-O c5 6. dxc5 Na6 7. c4 Nxc5 8. b4 Nfe4 9. Nd4 Ne6 10. Bb2 d5
Zurich Korchnoi CC 2017 – Round 5.2 – Nakamura, Hikaru – 1-0 – Nepomniachtchi, Ian – G18 1. d4 Nf6 2. Nf3 g6 3. e3 Bg7 4. c4 O-O 5. Be2 b6 6. O-O Bb7 7. Nc3 d5 8. cxd5 Nxd5 9. Bd2 Nd7 10. Nxd5 Bxd5

A48c —

1.d4 Nf6 2.Nf3 g6 3.e3 Bg7

Eval: [+0.18]

Les coups candidats

4.Bd3 — 38.4% (3029 parties)

Ambassadeurs : Brandt, Fred (12x), Velez Alvarez, Laura Camila (8x), Schmidt, Juergen (7x), Ahumuza Treasure Calton (6x), Murphy - O Connor, Matthew (6x), Bustamante Montoni, Richard De Jesus (6x), Schild, Reinhard (6x), Adoamnei, Roxana-Antonela (6x)

4.Be2 — 26.1% (2056 parties)

Ambassadeurs : Chipkin, Leonard (34x), Norowitz, Yaacov (20x), Winter, Malcolm J (17x), Vellema, Jelle (11x), Velten, Paul (10x), MacMillen, Andrew N (9x), Borges, Leomar Barbero (9x), Staiger, Frank (8x)

4.c4 — 17.2% (1355 parties)

Ambassadeurs : Giacomini, Hector (20x), Simon, Ralf-Axel (11x), Eichner, Dieter (8x), Nader, Mohamed (7x), Augustin, Christian (6x), Nuernberger, Stefan (6x), Wageih, Kareim (6x), Kaenel, Hansjuerg (6x)

4.b3 — 7.3% (572 parties)

Ambassadeurs : Torres, Jorge Emilio (9x), Thilaganathan, Jessica (7x), Molina, Roberto Junio Brito (6x), Ruslin, Alexey (6x), Winand, Edgar (6x), Volman, Vaclav (5x), Frosch, Ronald (5x), Klipper, Rebecca (5x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	4.Bd3	4.Be2	4.c4	4.b3
<1800	680	47%	20%	14%	8%
1800-2200	3420	40%	25%	18%	8%
2200-2600	1500	22%	43%	19%	8%
2600+	39	—	79%	13%	3%

Évolution par décennie (% des parties)

Décennie	N parties	4.Bd3	4.Be2	4.c4	4.b3
0s	1	100%	—	—	—
1900s	1	—	—	—	100%
1920s	19	74%	11%	—	5%
1930s	17	59%	6%	18%	—
1940s	13	69%	8%	8%	—
1950s	38	66%	16%	5%	—
1960s	50	50%	20%	18%	6%
1970s	72	49%	22%	4%	7%
1980s	193	44%	21%	18%	4%
1990s	1187	38%	23%	21%	5%
2000s	2503	43%	22%	16%	8%
2010s	3071	38%	27%	16%	8%
2020s	717	19%	47%	22%	6%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
4.Bd3	38%	19%	▼ -19.3%
4.Be2	27%	47%	▲ +19.7%
4.c4	16%	22%	▲ +6.0%
4.b3	8%	6%	▼ -2.0%

Joueurs célèbres

Champions du monde dans cette position

Euwe, Max — 4 parties
Kramnik, Vladimir — 2 parties
Gukesh D — 1 partie

Parties historiques

4.Bd3 — 38.4% (3029 parties)

9 — Boys, Ken vs Morgan, Frank — 1-0 — IECC
1922 — Atkins, Henry Ernest vs Euwe, Max — 0-1 — London ENG
1922 — Morrison, John vs Euwe, Max — 1-0 — Londen
1923 — Wahltuch, Victor Leonard vs Thomas, George Alan — 0-1 — Liverpool
1923 — Wahltuch, Victor vs Thomas, George Alan — 0-1 — Liverpool

4.Be2 — 26.1% (2056 parties)

1922 — Morrison, John vs Reti, Richard — 0-1 — Londen
1928 — Kingma, Jesse vs Euwe, Max — 0-1 — Midlum NED
1937 — Salles Oliveira, Antonio vs Salas Romo, Julio — 0-1 — Sao Paulo BRA
1948 — Dimitrov Krastev, Krastjo vs Neikirkh, Oleg — 1/2-1/2 — Sofia BUL
1952 — Pirc, Vasja vs Gligorić, Svetozar — 1/2-1/2 — Belgrade SRB

4.c4 — 17.2% (1355 parties)

1936 — Pluess, Alfred vs Pelikan, Jorge — 0-1 — Munich GER
1939 — Abreu Rodriguez, Juan Luis vs Salas Romo, Julio — 0-1 — Buenos Aires ol pr-B
1939 — Tartakower, Savielly vs Keres, Paul Petrovich — 1/2-1/2 — Buenos Aires ARG
1949 — Creemer, Dave vs Taylor, Jack — 0-1 — Vancouver
1950 — Soultanbeieff, Victor vs Van Scheltinga, Theo — 0-1 — Beverwijk NED

4.b3 — 7.3% (572 parties)

1909 — Wainwright, W. vs Voigt, Hartmut — 0-1 — Brooklyn/London
1922 — Atkins, Henry Ernest vs Euwe, Max — 0-1 — London ENG
1961 — Bialas, Wolfram vs Unzicker, Wolfgang — 1/2-1/2 — FRG-ch Bad Prymont
1968 — Kljugas vs Kruusiauk, Heda — 1/2-1/2 — Riga LAT
1969 — Saadi, Julio C vs Bazan, Osvaldo — 0-1 — Cordoba ARG

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