A48 — London System

1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 ● 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 les cases fortes e5 et g5, un fou actif en f4 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, le fou f1 et les tours a1 et h1).

Plans. Nbd2 (Développer Nb1) ; Bd3 (Développer Bf1) ; h3 (Empêcher ...Bg4).

♚ 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 la paire de fous.

Côté adverse. Le fou enfermé en 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) ; ...c5 (Rupture) ; ...e5 (Rupture).

Avantages

Faiblesses adverses

Diagonale active

Plans

Base Masters : Blancs 30.9%, Nulles 40.5%, Noirs 28.6%.

Coups candidats

auto

Analyse coup par coup — 7 demi-coups commentés

1.d4 Avancée centrale — contrôle c5, e5. Prépare c4, e4, Nc3.
1…Nf6 Contrôle e4, d5.
2.Nf3 Contrôle f4, c5, e5.
2…g6 Prépare le fianchetto du Fou (Bg7).
3.Bf4 Contrôle c5, e5.
3…Bg7 Contrôle e4, d5, f5.
4.e3 Avancée centrale — contrôle d4, f4. Prépare d4, Bd3, Be2.

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 (3v0), ● g5 (2v0)	—
Cases faibles	—	—
Centre	● d4 (3v0), ● e5 (3v0)	● d5 (1v0), ● e4 (1v0)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bf1	● Bf1 Non développé (mob. 5)
Bf4	● Bf4 Actif (mob. 6)
Bg7		● Bg7 Enfermé (mob. 2)
Bc8		● Bc8 Non développé (mob. 0)
Paire de fous	● Oui	● Oui
Non développées	4 (● b1, ● 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
10. Tal Mem 2016 – Round 9.5 – Tomashevsky, Evgeny – 1/2-1/2 – Svidler, Peter – G38 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 O-O 5. c3 d6 6. h3 b6 7. Be2 c5 8. O-O Bb7 9. Bh2 Nbd7 10. a4 a6
1927 Moskou ch-URS – Round 8 – Makogonov, Vladimir – 1/2-1/2 – Romanovsky, Pjotr – G23 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 b6 5. Nbd2 Bb7 6. c3 O-O 7. h3 d6 8. Bc4 Nbd7 9. O-O c5 10. Re1 Ne4
1931 GBR Ch 24th – Round 11 – Gibson, William – 1-0 – Thomas, George Alan – G21 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 d6 5. h3 Nbd7 6. c3 O-O 7. Nbd2 Re8 8. Bc4 a6 9. Bxf7+ Kh8 10. Bxe8 1-0
1931 Praag ol – Round 10 – Betbeder Matibet, Louis – 0-1 – Helling, Karl – G2 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 O-O 5. Bc4 d5 6. Bd3 c5 7. c3 Nc6 8. h3 Ne4 9. Nbd2 f5 10. Ne5 cxd4
1931 Prague ol – Round 11 – Helling, Karl – 0-1 – Lokvenc, Josef – G40 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 d6 5. Bc4 c5 6. O-O Qa5 7. Nc3 O-O 8. Qd2 Qc7 9. d5 a6 10. a4 Nh5
1934 BCF Ch 27th – Round 4 – Abrahams, Gerald – 1-0 – Alexander, Conol Hugh – G18 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 d6 5. Nbd2 Nc6 6. c3 O-O 7. Bd3 h6 8. h4 e5 9. Bg3 Qe7 10. dxe5 dxe5
1934 Zuerich – Round 1 – Naegeli, Oskar – 0-1 – Bogoljubow, Efim – G65 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 d6 5. h3 Nbd7 6. Be2 c5 7. c3 b6 8. Nbd2 Bb7 9. O-O O-O 10. Qc2 Rc8
1935 Warsaw ol (Men) – Round 17 – Romih, Max – 1-0 – Solin, Ilmari – G33 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 d6 5. h3 Nbd7 6. Bc4 O-O 7. O-O c5 8. c3 b6 9. Nbd2 Bb7 10. Qb3 d5
1936 Muenchen ol – Round 11 – Romih, Max – 0-1 – Richter, Kurt P – G27 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 O-O 5. Nbd2 c5 6. c3 Nc6 7. h3 b6 8. Bd3 Bb7 9. Qe2 cxd4 10. exd4 d6
1936 Podebrady – Round 1 – Alekhine, Alexander – 1/2-1/2 – Richter, Kurt P – G12 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 O-O 5. Nbd2 c5 6. c3 Nc6 7. dxc5 Nh5 8. Bg3 b6 9. cxb6 Qxb6 10. Qb3 Qd8
1938 URS Ch, semi final – Round 1 – Romanovsky, Pjotr – 1-0 – Kasparian, Genrikh – G37 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 O-O 5. Nbd2 d6 6. Bc4 Nbd7 7. O-O Nh5 8. Bg5 h6 9. Bh4 Bf6 10. g4 Ng7
1939 Leningrad/Moscow – Round 5 – Belavenets, Sergey – 0-1 – Smyslov, Vladimir – G37 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 c5 5. Nbd2 O-O 6. c3 b6 7. h3 Bb7 8. Bc4 d5 9. Bd3 Nbd7 10. O-O Ne4
1939 Leningrad/Moscow – Round 9 – Belavenets, Sergey – 0-1 – Kan, Ilya A – G66 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 O-O 5. Nbd2 d6 6. Bc4 Nc6 7. Qe2 Nb4 8. Bb3 Be6 9. O-O Bxb3 10. Nxb3 Qd7
1947 Chigorin Memorial – Round ? – Gligorić, Svetozar – 1/2-1/2 – Smyslov, Vasily – G103 1. Nf3 Nf6 2. d4 g6 3. Bf4 Bg7 4. e3 c5 5. Nbd2 b6 6. Bd3 O-O 7. c3 Nc6 8. O-O Bb7 9. h3 d6 10. Qe2 a6
1947 Leningrad ch-URS – Round 1 – Bondarevsky, Igor – 1/2-1/2 – Boleslavsky, Isaac – G28 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 d6 5. Bc4 O-O 6. Nbd2 c5 7. c3 b6 8. Qe2 a6 9. a4 Nh5 10. Bg5 h6
1947 Leningrad ch-URS – Round 12 – Yudovich, Mikhail M – 1/2-1/2 – Dubinin, Peter – G119 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 d6 5. h3 c5 6. c3 O-O 7. Bc4 cxd4 8. cxd4 Nc6 9. Nc3 a6 10. O-O b5
1947 Leningrad ch-URS – Round 2 – Yudovich, Mikhail M – 1/2-1/2 – Boleslavsky, Isaac – G47 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 d6 5. h3 O-O 6. Bc4 c5 7. c3 b6 8. O-O Ba6 9. Bxa6 Nxa6 10. Qe2 Nc7
1947 Leningrad ch-URS – Round 9 – Tolush, Alexander – 0-1 – Boleslavsky, Isaac – G99 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 d6 5. Nbd2 O-O 6. Bc4 c5 7. O-O b6 8. c3 Ba6 9. Bxa6 Nxa6 10. Qe2 Nc7
1947 London ENG-USSR – Round 1 – Bondarevsky, Igor – 1-0 – De Winter Gallegos, Willy – G4 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 d6 5. h3 O-O 6. Nbd2 c5 7. c3 Nc6 8. Bc4 Qb6 9. Qb3 Na5 10. Qxb6 axb6
1947 Moscow – Round 1 – Gligoric, Sofija – 1/2-1/2 – Smyslov, Vladimir – G29 1. Nf3 Nf6 2. d4 g6 3. Bf4 Bg7 4. e3 c5 5. Nbd2 b6 6. Bd3 O-O 7. c3 Nc6 8. O-O Bb7 9. h3 d6 10. Qe2 a6
1947 URS Ch, semi final – Round 1 – Batuev, Anton – 0-1 – Bronstein, David I – G10 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 O-O 5. h3 b6 6. Nbd2 Bb7 7. Bd3 d6 8. O-O Nbd7 9. Qe2 a6 10. e4 Nh5
1949 CAN Ch Arvida – Round 5 – Brunet, Phil – 1/2-1/2 – Bohatyrchuk, Fedir Parfenovych – G7 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 d6 5. c3 O-O 6. Nbd2 Nbd7 7. Bc4 c6 8. O-O Qe8 9. h3 e5 10. dxe5 dxe5
1949 Leningrad – Round 2 – Ravinsky, Grigory – 1/2-1/2 – Estrin, Yakov – G33 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 d6 5. c4 Nbd7 6. Nc3 O-O 7. Be2 c5 8. Qc2 b6 9. d5 a6 10. a4 Rb8
1949 Moscow Ch – Round ? – Yudovich, Mikhail M – 1/2-1/2 – Fridstein, German – G50 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 d5 5. Be2 c5 6. c3 Nbd7 7. O-O O-O 8. h3 Qb6 9. Qb3 Re8 10. Bh2 c4
1949 URS Ch, semi final – Round 1 – Kan, Ilya A – 1-0 – Cherepkov, Alexander V – G46 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 O-O 5. Nbd2 d5 6. Bd3 c5 7. c3 Nc6 8. O-O Nd7 9. Bb5 Qb6 10. Qa4 a6
1949 URS Ch, semi final – Round 1 – Kan, Ilya A – 1-0 – Kamishov, Mikhail P – G47 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 c5 5. Nbd2 O-O 6. h3 Nc6 7. c3 d6 8. Bc4 Qe8 9. Bh2 e5 10. dxe5 dxe5
1949 URS Ch, semi final – Round 13 – Ratner, Boris – 1/2-1/2 – Bastrikov, Georgy – G96 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 d6 5. h3 c6 6. Nbd2 O-O 7. Bc4 b5 8. Be2 Nbd7 9. O-O Bb7 10. c4 bxc4
1950 ITA Ch – Round 7 – Engalicev, Nicolas – 0-1 – Primavera, Giuseppe – G7 1. Nf3 Nf6 2. d4 g6 3. Bf4 Bg7 4. e3 O-O 5. Nbd2 d6 6. Bc4 Nfd7 7. O-O h6 8. c3 e5 9. Bg3 c6 10. Bb3 Qe7
1950 Sorrento ch ITA – Round 9 – Engalicew, Nicola – 1-0 – Paoli, Enrico – G21 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 O-O 5. c3 b6 6. Nbd2 Bb7 7. Bc4 d6 8. O-O Nbd7 9. Qb3 e6 10. Rad1 Qe7
1951 Moskou ch-URS – Round 1 – Bondarevsky, Igor – 1-0 – Aronin, Lev – G84 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 O-O 5. Nbd2 c5 6. c3 b6 7. Bd3 Ba6 8. Bxa6 Nxa6 9. O-O Qc8 10. Qe2 d5
1952 Budapest – Round 15 – Benko, Pal – 1/2-1/2 – Geller, Efim P – G134 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 O-O 5. Nbd2 c5 6. c3 d5 7. Be2 Nc6 8. Ne5 Nd7 9. Nxd7 Bxd7 10. O-O cxd4
1952 Moskou ch-URS – Round 1 – Ilivitsky, Georgy A – 0-1 – Geller, Efim P – G89 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 O-O 5. Nbd2 c5 6. c3 cxd4 7. cxd4 Nc6 8. Be2 d5 9. O-O Qb6 10. Qb3 Qxb3
1952 POL-ch10 – Round 13 – Plater, Kazimierz – 1/2-1/2 – Ciejka, Tadeusz – G98 1. Nf3 Nf6 2. d4 g6 3. Bf4 Bg7 4. e3 O-O 5. Nbd2 c5 6. c3 b6 7. Bd3 Bb7 8. Qe2 Nc6 9. O-O cxd4 10. exd4 Nh5
1952 Saltsjobaden Interzonal – Round 17 – Kotov, Alexander A – 1/2-1/2 – Geller, Efim P – G158 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 c5 5. c3 Qb6 6. Qb3 d6 7. Nbd2 Be6 8. Bc4 Bxc4 9. Nxc4 Qxb3 10. axb3 Nbd7
1953 URS-training – Round 2 – Bondarevsky, Igor – 0-1 – Smyslov, Vladimir – G9 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 O-O 5. Nbd2 c5 6. c3 b6 7. Bd3 Nc6 8. O-O d6 9. h3 a6 10. Qe2 cxd4
1953 Wenen AUT-URS – Round 2.4 – Mueller, Hans – 1/2-1/2 – Averbakh, Yuri L – G7 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 O-O 5. h3 c5 6. c3 d5 7. Nbd2 Nc6 8. Bd3 cxd4 9. exd4 Bf5 10. Qe2 Nh5
1954 Bucharest – Round 16 – Sandor, Bela – 1/2-1/2 – Korchnoi, Viktor – G140 1. Nf3 Nf6 2. d4 g6 3. Bf4 Bg7 4. e3 O-O 5. Nbd2 d5 6. h3 c5 7. c3 Nfd7 8. Be2 Nc6 9. O-O e5 10. dxe5 Ndxe5
1954 Bucharest – Round 4 – Voiculescu, Paul – 0-1 – Nezhmetdinov, Rashid – G47 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 O-O 5. Nbd2 Nc6 6. Be2 d6 7. O-O Nd7 8. c3 e5 9. Bg3 f5 10. h3 e4
1954 Hungary Ch – Round 17 – Sandor, Balazs – 0-1 – Dely, Peter – G52 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 O-O 5. Nbd2 c5 6. c3 cxd4 7. exd4 Nc6 8. h3 d6 9. Be2 e5 10. dxe5 dxe5
1954 It – Round 1 – Vlagsma, Chris – 1/2-1/2 – Kramer, Haije – G1 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 O-O 5. Bd3 d6 6. Nbd2 Nbd7 7. h3 Re8 8. e4 e5 9. dxe5 dxe5 10. Be3 Nh5
1954 ITA-ch17 – Round 2 – Romih, Max – 1-0 – Staldi, Cherubino – G3 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 d6 5. h3 Nbd7 6. Bc4 c5 7. c3 Nb6 8. Bb3 Bf5 9. O-O O-O 10. Qe2 Qc8
1954 ITA-ch17 – Round 4 – Romih, Max – 1/2-1/2 – Ferrantes, Giovanni – G7 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 d6 5. h3 O-O 6. Bc4 Nbd7 7. Nbd2 c5 8. c3 a6 9. O-O b5 10. Bb3 Bb7
1954 ITA-ch17 – Round 7 – Romih, Max – 1-0 – Miliani, Giorgio – G11 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 d6 5. h3 O-O 6. Bc4 Nbd7 7. Nbd2 Qe8 8. e4 e5 9. dxe5 Nxe5 10. Nxe5 dxe5
1954 Mar del Plata – Round 7 – Bauza, Lorenzo – 1/2-1/2 – Castillo Larenas, Mariano – G60 1. Nf3 Nf6 2. d4 g6 3. Bf4 Bg7 4. e3 c5 5. c3 b6 6. Be2 Bb7 7. Nbd2 d6 8. h3 O-O 9. O-O Nbd7 10. Rc1 Rc8
1954 URS Team Ch – Round 8 – Kan, Ilya A – 1/2-1/2 – Aronin, Lev – G142 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 O-O 5. Nbd2 d5 6. c3 c6 7. Bd3 Bg4 8. Qc2 Nbd7 9. h3 Bxf3 10. Nxf3 c5
1955 Mar del Plata – Round 12 – Rossetto, Hector – 0-1 – Panno, Oscar – G82 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 O-O 5. Nbd2 b6 6. Be2 Bb7 7. O-O d6 8. h3 c5 9. c3 Nc6 10. a4 Rb8
1955 POL-URS Lodz POL – Round ? – Bondarevsky, Igor – 1-0 – Gromek, Jozef – G7 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 O-O 5. Nbd2 c5 6. Bd3 Nc6 7. c3 Nh5 8. Bg5 b6 9. d5 Nb8 10. e4 d6
1955 Poland ch13 – Round 13 – Pytlakowski, Andrzej – 1-0 – Gromek, Jozef – G42 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 O-O 5. Nbd2 d5 6. c3 c5 7. Bd3 Nc6 8. O-O Re8 9. Re1 Nh5 10. Bg5 Qd6
1956 Ilford Premier – Round 4 – Franklin, Michael J – 1/2-1/2 – Clarke, Peter H – G9 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 d6 5. h3 Bf5 6. Nbd2 Nc6 7. c3 O-O 8. Bc4 Ne4 9. O-O e5 10. Bh2 Qe7
1956 Montevideo – Round 1 – Bauza, Lorenzo – 0-1 – Najdorf, M. – G29 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 Nh5 5. Be5 f6 6. Bg3 O-O 7. Be2 f5 8. Ne5 d6 9. Nd3 Nxg3 10. hxg3 e5
1956 Moscow olm prel – Round 1 – Fallone, Michael – 0-1 – Kramer, Hanspeter – G13 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 b6 5. Nbd2 Bb7 6. Bd3 d6 7. e4 Nbd7 8. c3 O-O 9. O-O Qe8 10. Re1 e5
1956 URS Ch sf – Round ? – Kotov, Alexander. – 0-1 – Byvshev, Vasily – G65 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 O-O 5. h3 d6 6. Nbd2 Nc6 7. Bh2 Nd7 8. c3 e5 9. Bb5 Ncb8 10. O-O Qe7
1957 URS Ch, semi final – Round 17 – Kotov Lundqvist, Alex – 0-1 – Nikolaevsky, Yuri V – G153 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 O-O 5. Nbd2 d6 6. h3 Nbd7 7. c3 c5 8. Be2 b6 9. O-O Bb7 10. a4 a6
1958 New York ch-USA – Round 8 – Bisguier, Arthur B – 1/2-1/2 – Reshevsky, Samuel – G37 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 c5 5. c3 b6 6. Nbd2 O-O 7. Be2 Bb7 8. O-O d6 9. h3 Nc6 10. Bh2 Rc8
1958 UKR Ch – Round 9 – Platonov, Igor V – 1/2-1/2 – Kots, Yuri I – G40 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 O-O 5. Nbd2 d5 6. Bd3 c5 7. c3 cxd4 8. exd4 Nh5 9. Bg3 Nc6 10. O-O Nxg3
1959 Dresden – Round 5 – Florian, Tibor – 1/2-1/2 – Geller, Efim P – G39 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 O-O 5. Nbd2 c5 6. c3 cxd4 7. cxd4 Nc6 8. Bc4 d5 9. Be2 Nh5 10. Bg5 h6
1959 GDR Ch Leipzig GER – Round 5 – Badestein, Hartmut, Prof. Dr. – 1-0 – Fuchs, Reinhart – G25 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 d6 5. Bc4 Nh5 6. Bg3 Nxg3 7. hxg3 d5 8. Bb3 Nc6 9. Nc3 e6 10. a3 h5
1959 Kragujevac ch14-YUG – Round 1 – Sokolov, Vladimir – 1/2-1/2 – Udovcic, Mijo – G58 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 d6 5. Nbd2 O-O 6. Bc4 c6 7. h3 Nbd7 8. c3 Qe8 9. O-O e5 10. Bh2 Qe7
1959 Tbilisi ch-URS – Round 4 – Kholmov, Ratmir D – 0-1 – Gufeld, Eduard – G30 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 O-O 5. Nbd2 c5 6. c3 cxd4 7. exd4 Nc6 8. Be2 d6 9. h3 Re8 10. Nc4 Be6
1960 ITA-HUN – Round 1 – Romi – 1-0 – Navarovszky, Laszlo – G7 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 c5 5. Nbd2 b6 6. c3 O-O 7. Bc4 Ba6 8. Qe2 Qc8 9. h3 d6 10. O-O Bxc4
1960 Leipzig olm fin-A – Round 10 – Portisch, Lajos – 1/2-1/2 – Uhlmann, Wolfgang – G180 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 O-O 5. h3 c5 6. c3 Qb6 7. Qb3 Nc6 8. Nbd2 Qxb3 9. axb3 d6 10. dxc5 dxc5
1960 Leipzig olm fin-A – Round 4 – Bisguier, Arthur B – 1-0 – Bertok, Mario Jr. – G68 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 O-O 5. Nbd2 d5 6. Bd3 c5 7. c3 Qb6 8. Rb1 Nc6 9. h3 Re8 10. O-O Bf5
1960 Leipzig olm prel – Round 6 – Fred, Aatos – 1/2-1/2 – Vukcevich, Milan – G25 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 O-O 5. Nbd2 c5 6. c3 cxd4 7. cxd4 Nc6 8. Bc4 d6 9. O-O Nh5 10. Bg5 h6
1960 Moscow-Leningrad m – Round 2.12 – Yudovich, Mikhail M – 1/2-1/2 – Artsukevich, K – G25 1. Nf3 Nf6 2. d4 g6 3. Bf4 Bg7 4. e3 d5 5. Bd3 O-O 6. h3 Nc6 7. O-O Nd7 8. Bb5 a6 9. Ba4 e6 10. c3 b5
1960 Santa Fe – Round ? – Rossetto, Hector – 1/2-1/2 – Taimanov, Mark E – G25 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 O-O 5. Nbd2 d6 6. c3 Nc6 7. h3 Qe8 8. g4 e5 9. dxe5 dxe5 10. Bg5 Be6
1961 Budapest ch-HUN – Round 1 – Bilek, Istvan – 1/2-1/2 – Kluger, Gyula – G57 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 O-O 5. h3 c5 6. c3 Qb6 7. Qb3 Qxb3 8. axb3 cxd4 9. exd4 d6 10. Nbd2 Nc6
1961 Buenos Aires ch-ARG – Round 2 – Rossetto, Hector – 1-0 – Rubinstein, Jose – G10 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 d6 5. Nbd2 O-O 6. Be2 Nbd7 7. c3 c5 8. O-O a6 9. a4 b6 10. Qb3 e5
1961 GBR Ch 48th – Round 7.4 – Franklin, Michael J – 1-0 – Hollis, Adrian – G56 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 O-O 5. Nbd2 d6 6. h3 c5 7. c3 Nc6 8. dxc5 dxc5 9. e4 b6 10. Be2 Bb7
1961 Maroczy Memorial Budapest HUN – Round 1 – Bilek, Istvan – 1/2-1/2 – Uhlmann, Wolfgang – G36 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 d6 5. h3 O-O 6. c3 Nbd7 7. Be2 Qe8 8. Na3 e5 9. dxe5 dxe5 10. Bh2 Qe7
1961 URU Ch sf – Round ? – Ayerra, JM. – 0-1 – Estrada Degrandi, Walter – G7 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 d6 5. Bd3 Bg4 6. Nbd2 O-O 7. h3 Bxf3 8. Nxf3 Nfd7 9. O-O e5 10. dxe5 dxe5
1961 Zagreb – Round 16 – Sokolov, Vladimir – 0-1 – Marovic, Drazen – G130 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 O-O 5. Nbd2 d6 6. Bc4 Nbd7 7. c3 Qe8 8. h3 e5 9. dxe5 Nxe5 10. Nxe5 dxe5
1963 Club Argentino – Round 1 – Rossetto, Hector – 1/2-1/2 – Cruz, Raul C. – G8 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 d6 5. Nbd2 Nbd7 6. c3 O-O 7. Bc4 Qe8 8. h3 e5 9. dxe5 dxe5 10. Bh2 Qe7
1963 Leningrad ch-URS – Round 1 – Bondarevsky, Igor – 0-1 – Bronstein, David I – G60 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 O-O 5. Nbd2 b6 6. c3 c5 7. h3 d6 8. Be2 Ba6 9. Bxa6 Nxa6 10. O-O Qd7
1963 Sochi – Round 8 – Bilek, Istvan – 1-0 – Bukic, Enver – G49 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 O-O 5. c3 b6 6. a4 a5 7. Na3 d6 8. h3 Nbd7 9. Be2 Bb7 10. O-O Ne4
1963 Zenica ch YUG – Round 15 – Masic, Ljubomir – 0-1 – Ivkov, Borislav – G86 1. Nf3 g6 2. d4 Nf6 3. Bf4 Bg7 4. e3 d6 5. c3 O-O 6. Be2 b6 7. a4 Bb7 8. O-O c5 9. a5 Nbd7 10. axb6 axb6
1964 Bordeaux Open Bordeaux FRA – Round 5 – Boutteville, Cesar – 0-1 – O'Kelly de Galway, Alberic – G33 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 c5 5. Nbd2 b6 6. Bd3 Bb7 7. h3 d6 8. O-O O-O 9. Qe2 Nbd7 10. c3 Qc7
1964 Kecskemet zt – Round 1 – Prameshuber, Alexander – 1/2-1/2 – Szabo, Ladislav – G31 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 c5 5. c3 b6 6. Be2 O-O 7. O-O d6 8. h3 Ba6 9. Nbd2 Qd7 10. Bh2 Bxe2
1965 Belgrade – Round 12 – Sokolov, Vladimir – 0-1 – Rakic, Tomislav – G66 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 O-O 5. Nbd2 d6 6. Bc4 Nc6 7. O-O Nh5 8. Bg5 Kh8 9. c3 f6 10. Bh4 e5
1965 Hungary – Round 1 – Jenei, Ferenc – 1-0 – Hajtun, Joseph – G67 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 d5 5. h3 O-O 6. c3 b6 7. Nbd2 Bb7 8. Be2 Nbd7 9. Ne5 e6 10. Qa4 Nxe5
1965 New York ch-USA – Round 1 – Bisguier, Arthur B – 1/2-1/2 – Byrne, Ray – G2 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 O-O 5. Nbd2 c5 6. c3 b6 7. Be2 Nc6 8. h3 Bb7 9. O-O d5 10. Rb1 Nd7
1966 Hoogovens 28th – Round 11 – Filip, Marius Liviu – 1/2-1/2 – Ivkov, Borislav – G30 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 O-O 5. Nbd2 d6 6. c3 b6 7. Be2 Bb7 8. h3 Nbd7 9. O-O Nd5 10. Bh2 e5
1966 La Habana olm fin-B – Round 7 – Prameshuber, Alexander – 1-0 – Mazzoni, Guy – G27 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 O-O 5. Nbd2 d6 6. h3 c5 7. c3 Nc6 8. Be2 Qe8 9. Bh2 Nd7 10. O-O e5
1966 La Habana olm prel – Round 2 – Holmes, Aaron J – 0-1 – Malich, Burkhard, Dr. – G49 1. d4 Nf6 2. Bf4 g6 3. Nf3 Bg7 4. e3 O-O 5. c3 b6 6. Nbd2 c5 7. h3 d6 8. Bc4 Bb7 9. O-O Nbd7 10. Re1 Qe8
1967 Oxford ch-BCF – Round 1 – Bonner, Gerald – 1/2-1/2 – Wade, Robert G – G6 1. d4 Nf6 2. Bf4 g6 3. e3 Bg7 4. Nf3 d6 5. Nbd2 O-O 6. Bc4 Nbd7 7. h3 c6 8. O-O b5 9. Be2 Bb7 10. Rc1 a5
1967 Oxford ch-BCF – Round 11 – Bonner, Gerald – 1/2-1/2 – Penrose, Justin – G97 1. d4 Nf6 2. Bf4 g6 3. Nf3 Bg7 4. e3 O-O 5. Bc4 d6 6. O-O Nbd7 7. Re1 Qe8 8. e4 e5 9. dxe5 dxe5 10. Bg5 h6
1967 POL Ch 24th – Round 7 – Sliwinski, Henryk – 1/2-1/2 – Schmidt, Wlodzimierz – G14 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 O-O 5. h3 d6 6. c3 b6 7. Be2 Bb7 8. O-O c5 9. a4 e6 10. Nbd2 Nbd7
1967 US Open – Round 9 – Martinovsky, Eugene – 1/2-1/2 – Rossolimo, Nicolas – G26 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 c5 5. c3 b6 6. Nbd2 Bb7 7. Be2 O-O 8. O-O d6 9. h3 Nbd7 10. a4 a6
1967 YUG-URS women – Round 1 – Stadler, Tereza – 1/2-1/2 – Kushnir, Alla – G2 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 d6 5. Bc4 O-O 6. h3 Qe8 7. Nbd2 b5 8. Be2 Bb7 9. c4 b4 10. O-O a5
1968 Churchill Memorial Open 16th – Round 4 – Franklin, Michael J – 1-0 – Ghitescu, Theodor – G7 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 O-O 5. Nbd2 b6 6. h3 c5 7. c3 d6 8. Rc1 Bb7 9. Bc4 Nc6 10. O-O Qe8
1968 Lugano olm - Round 1 - Edwards, Lawrence - 0-1 - Liebert, Heinz - G132 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 d6 5. Nc3 O-O 6. Bd3 Nbd7 7. h3 Re8 8. O-O e5 9. dxe5 dxe5 10. Nxe5 Nxe5
1968 Lugano olm - Round 1 - McAlpine, Kenneth B - 0-1 - Matulovic, Milan - G351 1. d4 Nf6 2. Bf4 g6 3. e3 Bg7 4. Nf3 O-O 5. Nbd2 d6 6. h3 Nbd7 7. Bc4 Qe8 8. Bh2 e5 9. O-O Qe7 10. c3 b6
1968 Monte Carlo-B – Round 8 – Gereben, Erno – 1/2-1/2 – Kozma, Julius – G12 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 O-O 5. Nbd2 d6 6. Bc4 Nc6 7. c3 Qe8 8. h3 e5 9. Bh2 e4 10. Ng1 Qe7
1968 POL Ch 25th – Round 11 – Sliwinski, Henryk – 0-1 – Schmidt, Wlodzimierz – G64 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 O-O 5. Nbd2 d6 6. h3 Nfd7 7. c3 e5 8. dxe5 dxe5 9. Bg5 Qe8 10. Bc4 h6
1968 Prague U26 – Round 11 – Janata, Michael – 1/2-1/2 – Jansa, Vlastimil – G45 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 O-O 5. Nbd2 d6 6. h3 Nbd7 7. Be2 b6 8. O-O Bb7 9. c3 e6 10. a4 a5
1968 Vinkovci – Round 12 – Hort, Vlastimil – 1-0 – Nikolic, Emil – G66 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 O-O 5. Nbd2 d6 6. h3 Nbd7 7. Be2 c5 8. O-O b6 9. a4 a6 10. c3 Bb7
1971 Hoogovens – Round 7 – Krabbe, Tim – 0-1 – Jansa, Vlastimil – G114 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 d6 5. c3 O-O 6. Nbd2 Nbd7 7. Bc4 Nh5 8. Bg5 h6 9. Bh4 g5 10. g4 Nhf6
2024 Superbet Chess Blitz – Round 10 – Gukesh D – 0-1 – Wei Yi – G46 1. d4 Nf6 2. Bf4 g6 3. e3 Bg7 4. Nf3 O-O 5. h4 d6 6. Nbd2 Nc6 7. c3 Qe8 8. Bc4 e5 9. Bg5 Bg4 10. Be2 Nh5
40. Olympiad Open 2012 – Round 10.36 – Megaranto, Susanto – 1/2-1/2 – Nyback, Tomi – G564 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 c5 5. c3 b6 6. Nbd2 Bb7 7. h3 O-O 8. Be2 d6 9. O-O Nbd7 10. a4 a6
8. Sinquefield Cup 2021 – Round 1.4 – Caruana, Fabiano – 1-0 – Shankland, Sam – G4 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 d6 5. h3 c5 6. Nbd2 cxd4 7. exd4 O-O 8. Be2 Qb6 9. Nc4 Qc7 10. Ne3 Nc6
Amber-rapid 6th 1997 – Round 11 – Ljubojevic, Ljubomir – 1-0 – Shirov, Alexei – G58 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 d6 5. h3 c5 6. Nbd2 O-O 7. Bc4 Qb6 8. Bb3 Nc6 9. c3 Qa6 10. Bc4 Qb6
Biel Interzonal 1993 – Round 8 – Agdestein, Simen – 0-1 – Spasov, Vasil – G185 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 O-O 5. c4 d6 6. h3 c5 7. Nc3 cxd4 8. exd4 Nc6 9. Be2 d5 10. O-O Bf5
Cap d'Agde 1994 – Round 7.4 – Karpov, Anatoly – 1/2-1/2 – Gelfand, Boris – G34 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 d6 5. c3 O-O 6. Be2 c5 7. O-O Qb6 8. Nbd2 Be6 9. Ng5 Bd7 10. Nc4 Qc7
Cap d'Agde 1994 – Round 8.1 – Karpov, Anatoly – 0-1 – Gelfand, Boris – G35 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 d6 5. c3 O-O 6. Be2 c5 7. O-O b6 8. a4 a6 9. h3 Bb7 10. Nbd2 Nbd7
ch-Wereld Teams 1989 – Round 1 – Phung Ye, Ryan – 0-1 – Ivanchuk, Vasyl – G44 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 O-O 5. h3 d6 6. a4 c5 7. a5 cxd4 8. exd4 Nc6 9. a6 bxa6 10. Na3 e5
Cote d'Ivoire Blitz 2019 – Round 3.5 – Karjakin, Sergey – 1-0 – Nepomniachtchi, Ian – G15 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 O-O 5. h3 d6 6. Nbd2 Nbd7 7. c3 Re8 8. Bh2 e5 9. dxe5 Nxe5 10. Nxe5 dxe5
FIDE World Cup 2019 – Round 3.8 – Tomashevsky, Evgeny – 0-1 – Nepomniachtchi, Ian – G358 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 O-O 5. c3 d6 6. h3 Nbd7 7. Be2 Qe8 8. a4 a5 9. O-O b6 10. Na3 Bb7
FIDE World Rapid 2014 – Round 7.5 – Le, Quang Liem – 0-1 – Nepomniachtchi, Ian – G126 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 d6 5. h3 c5 6. c3 cxd4 7. exd4 O-O 8. Be2 b6 9. O-O Bb7 10. Re1 Nbd7
GCT Rapid Paris 2016 – Round 6.3 – Caruana, Fabiano – 0-1 – Vachier-Lagrave, Maxime – G28 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 b6 5. Be2 Bb7 6. O-O O-O 7. c4 d6 8. h3 Nbd7 9. Bh2 e6 10. Nfd2 Re8
GCT Rapid TB Paris 2017 – Round 1 – Carlsen, Magnus – 1-0 – Vachier-Lagrave, Maxime – G1 1. d4 Nf6 2. Bf4 g6 3. e3 Bg7 4. Nf3 d6 5. Be2 Nh5 6. Bg5 h6 7. Bh4 g5 8. Nfd2 Nf4 9. exf4 gxh4 10. c3 c5
Lindores Abbey Tal Memorial 2021 – Round 16.11 – Sevian, Samuel – 1-0 – Adhiban, B. – G674 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 d6 5. h3 O-O 6. c3 b6 7. a4 a6 8. Be2 Bb7 9. O-O Nbd7 10. Bh2 Ne4
SportAccord Blindfold Men 2012 – Round 5.4 – Kamsky, Gata – 1/2-1/2 – Wang, Hao(ZJWZ) – G36 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 O-O 5. h3 d6 6. c3 b6 7. Be2 Bb7 8. O-O Nbd7 9. Bh2 e6 10. a4 a5
SportAccord Blitz Men 2013 – Round 14.5 – Kamsky, Gata – 0-1 – Karjakin, Sergey – G106 1. d4 Nf6 2. Bf4 g6 3. e3 Bg7 4. Nf3 O-O 5. c3 d6 6. h3 Nfd7 7. e4 Nc6 8. Bb5 e5 9. Bg5 Qe8 10. d5 Ne7
SportAccord Blitz Men 2013 – Round 8.8 – Kamsky, Gata – 0-1 – Le, Quang Liem – G61 1. d4 Nf6 2. Bf4 g6 3. e3 Bg7 4. Nf3 O-O 5. c3 d6 6. h3 b6 7. a4 a6 8. Bd3 Bb7 9. O-O c5 10. Re1 Nc6
Superbet Blitz 2023 – Round 13.4 – Duda, Jacob – 1-0 – Shevchenko, Kirill – G64 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 b6 5. Be2 Bb7 6. h3 O-O 7. O-O d6 8. Bh2 Nbd7 9. a4 a6 10. Nbd2 Ne4
Tal Memorial Blitz 2008 – Round 10 – Grachev, Boris – 0-1 – Movsesian, Sergei – G84 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 O-O 5. h3 d6 6. c3 Nfd7 7. Bh2 e5 8. Be2 f5 9. O-O Nc6 10. b4 h6
Tal Memorial Blitz 2008 – Round 17 – Kamsky, Gata – 0-1 – Svidler, Peter – G136 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 O-O 5. h3 c5 6. c3 d6 7. Nbd2 b6 8. Bd3 Bb7 9. Qe2 Nbd7 10. O-O Re8
Tal Memorial Blitz 2008 – Round 22 – Ivanchuk, Vasyl – 1-0 – Svidler, Peter – G182 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 d6 5. h3 O-O 6. c4 Nfd7 7. Nc3 e5 8. Bh2 exd4 9. exd4 Nc6 10. Be2 Re8
Tal Memorial Blitz 2014 – Round 14.3 – Tomashevsky, Evgeny – 1-0 – Gelfand, Boris – G81 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 O-O 5. h3 c5 6. c3 Qb6 7. Qb3 d6 8. Nbd2 Be6 9. Bc4 Bxc4 10. Nxc4 Qa6
Tal Memorial Blitz 2014 – Round 18.2 – Tomashevsky, Evgeny – 1/2-1/2 – Nepomniachtchi, Ian – G104 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 O-O 5. h3 b6 6. c4 Bb7 7. Nc3 d5 8. Rc1 c5 9. dxc5 bxc5 10. cxd5 Nxd5
World Blitz 2007 – Round 11 – Kamsky, Gata – 1-0 – Kasimdzhanov, Rustam – G106 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 O-O 5. h3 b6 6. c3 Bb7 7. Nbd2 d6 8. a4 c5 9. Be2 Nc6 10. O-O Rc8
World Blitz 2017 – Round 5.30 – Le, Quang Liem – 1-0 – Volokitin, Andrei – G255 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 d6 5. h3 c5 6. c3 Qb6 7. Qb3 Be6 8. Qxb6 axb6 9. a3 Bd7 10. Nbd2 Bc6
World Blitz 2021 – Round 1.13 – Jumabayev, Rinat – 1/2-1/2 – Rapport, Richard – G5 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 c5 5. c3 Qb6 6. Qb3 d6 7. Bb5+ Bd7 8. Bc4 O-O 9. Nbd2 Nc6 10. O-O Na5
World Blitz 2022 – Round 11.18 – Petrosyan, Manuel – 0-1 – Moussard, Jules – G568 1. d4 Nf6 2. Bf4 g6 3. e3 Bg7 4. Nf3 d6 5. h3 c5 6. Be2 Qb6 7. Na3 O-O 8. O-O Be6 9. Nc4 Qc7 10. Ncd2 Qb6

A48j — London System

1.d4 Nf6 2.Nf3 g6 3.Bf4 Bg7 4.e3

Eval: [+0.02]

Les coups candidats

4…O-O — 55.8% (11349 parties) →

Ambassadeurs : Lenz, Juergen (55x), Glienke, Manfred, Dr. (42x), Pakleza, Zbigniew (31x), Zhukova, Natalia (26x), Mueller, Michael (24x), Grachev, Boris (24x), Sapis, Witalis (21x), Burmakin, Vladimir (21x)

4…d6 — 33.7% (6867 parties)

Ambassadeurs : Burmakin, Vladimir (22x), Ehrke, Michael (19x), Szydlowska-Duda, Marta (18x), Glienke, Manfred, Dr. (18x), Payen, Arnaud (17x), Lenz, Juergen (17x), Pham, Le Thao Nguyen (13x), Nguyen Thi Mai Hung (13x)

4…c5 — 4.7% (966 parties)

Ambassadeurs : Lenz, Juergen (6x), Umetsubo, Cesar Hidemitsu (4x), Pereyra, Darío (4x), Sydor, Andrzej (3x), Bellon Lopez, Juan Manuel (3x), Riefner, Edwin (3x), Hoenig, Alexander (3x), Rudnik, Heinz (3x)

4…d5 — 3.9% (791 parties)

Ambassadeurs : Sandum, Kjell Tore (4x), Zezulkin, Jurij (4x), Toma, Katarzyna (4x), Sapis, Witalis (3x), Schnell, Franz (3x), Kreusch, Frank (3x), Chemin, Vitorio (3x), Abel, Lajos (3x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	4…O-O	4…d6	4…c5	4…d5
<1800	1197	55%	34%	3%	6%
1800-2200	8746	54%	34%	5%	5%
2200-2600	6724	59%	33%	5%	2%
2600+	215	50%	42%	5%	—

Évolution par décennie (% des parties)

Décennie	N parties	4…O-O	4…d6	4…c5	4…d5
1900s	1	100%	—	—	—
1920s	9	33%	56%	—	—
1930s	19	42%	42%	5%	5%
1940s	22	36%	41%	14%	5%
1950s	67	60%	27%	9%	—
1960s	118	58%	31%	8%	4%
1970s	192	59%	34%	4%	1%
1980s	810	56%	35%	6%	2%
1990s	3245	54%	34%	6%	4%
2000s	4727	56%	33%	4%	5%
2010s	9347	56%	34%	5%	4%
2020s	1792	57%	34%	3%	3%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
4…O-O	56%	57%	▲ +1.3%
4…d6	34%	34%	+0.4%
4…c5	5%	3%	▼ -1.2%
4…d5	4%	3%	▼ -0.8%

Joueurs célèbres

Champions du monde dans cette position

Carlsen, Magnus — 7 parties
Kasparov, Garry — 6 parties
Karpov, Anatoly — 5 parties
Ju, Wenjun — 5 parties
Smyslov, Vladimir — 4 parties
Gukesh D — 3 parties
Euwe, Max — 2 parties
Alekhine, Alexander — 1 partie
Anand, Viswanathan — 1 partie
Karpov, Aleksandr — 1 partie
Ding, Liren — 1 partie

Parties historiques

4…O-O — 55.8% (11349 parties)

1907 — Akonde Marshall vs Burn, Allan — 1-0 — Ostend
1923 — Speijer, Abraham vs Euwe, Max — 0-1 — Amsterdam NED
1923 — Speyer, Dimitri vs Euwe, Max — 0-1 — Amsterdam Club Ch.
1926 — O Hagan J vs Allen, Warren Jackson — 0-1 — ?
1931 — Betbeder Matibet, Louis vs Helling, Karl — 0-1 — Prague CZE

4…d6 — 33.7% (6867 parties)

1923 — Sifalda Vaclav vs Prochazka, Hubert — 1/2-1/2 — Pardubice CZE
1926 — Machate, Gustav vs Zinner, Sandor — 0-1 — Unofficial Olympiad
1926 — Herrick, Herbert John C vs Bancroft, Kenneth Humphry — 0-1 — City of London CC
1926 — Machate, Gottlieb vs Ruester, Otto — 1-0 — Bad Altheide
1926 — Banks, Newell vs Lasker, Edward — 0-1 — Chicago, IL USA

4…c5 — 4.7% (966 parties)

1939 — Belavenets, Sergey vs Smyslov, Vladimir — 0-1 — Leningrad RUS
1947 — Gligorić, Svetozar vs Smyslov, Vasily — 1/2-1/2 — Moscow RUS
1947 — Gligoric, Sofija vs Smyslov, Vladimir — 1/2-1/2 — Moscow RUS
1949 — Kan, Ilya A vs Kamishov, Mikhail P — 1-0 — Moscow RUS
1952 — Kotov, Alexander vs Geller, Efim P. — 1/2-1/2 — Saltsjobaden SWE

4…d5 — 3.9% (791 parties)

1937 — Balparda, Julio vs Flores Alvarez, Rodrigo — 0-1 — Sao Paulo BRA
1949 — Yudovich, Mikhail M vs Fridstein, German — 1/2-1/2 — Moscow RUS
1960 — Yudovich, Mikhail M vs Artsukevich, K — 1/2-1/2 — Moscow RUS
1964 — Berezhnoi, Viktor vs Levitsky, Anatoly — 0-1 — Kiev UKR
1965 — Jenei, Ferenc vs Hajtun, Joseph — 1-0 — HUN

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