Base Masters : Blancs 27.0%, Nulles 41.5%, Noirs 31.5%.
Coups candidats
4…O-O  (54.2% — Blancs: 27.4% | Nulles: 41.7% | Noirs: 31.0%)
4…d6  (31.9% — Blancs: 24.3% | Nulles: 43.7% | Noirs: 32.0%)
4…b6  (10.7% — Blancs: 30.1% | Nulles: 36.1% | Noirs: 33.7%)
4…d5  (1.7% — Blancs: 38.5% | Nulles: 53.8% | Noirs: 7.7%)
4…Nh5  (0.9% — Blancs: 42.9% | Nulles: 14.3% | Noirs: 42.9%)
4…c5  (0.6% — Blancs: 20.0% | Nulles: 20.0% | Noirs: 60.0%)
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.c3 Contrôle b4, d4. Prépare d4.
Structure de pions
♔ Blancs ♚ Noirs
Pions doublés
Pions isolés
Arriérés
Chaînes ● b2→c3, c3→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. 0)
Bf4 ● Bf4 Actif (mob. 9)
Bg7 ● Bg7 Ok (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 mobile
Ruptures ● …c7-c5, ● …e7-e5

A48 — London System

1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. c3   ● Trait aux Noirs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1
bR
bN
bB
bQ
bK
bR
bP
bP
bPPion sous pression
bP
bP
bP
bB
bP
bN
bP
Case forte (3v0)
Case forte (2v0)
wPPion central
wBFou actif — mobilité 9
wP
wN
wP
wP
wP
wP
wP
wP
wR
wN
wQ
wK
wB
wR
abcdefgh
Plans. h3 (Empêcher ...Bg4 — 36 % des parties) ; e3 (Libérer Bf1, préparer Bd3 — 34 % des parties) ; Nbd2 (Développer b1 — 27 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8
wR
wB
wK
wQ
wN
wR
wP
wP
wP
wP
wP
wP
wN
wP
wB
wP
bP
bN
bP
bB
bP
bP
bP
bPPion sous pression
bP
bP
bR
bK
bQ
bB
bN
bR
hgfedcba
Plans. ...O-O (Mettre le roi en sécurité, connecter les tours — 44 % des parties) ; ...d6 (Libérer Bc8 — 40 % des parties) ; ...b6 (Préparer le fianchetto — 10 % des parties).
Avantages
Faiblesses
Diagonale active
Plans
Partie
11. Tal Mem Rapid 2018 – Round 2.1 – Kramnik, Vladimir – 0-1 – Grischuk, Alexander – G6
1. Nf3 Nf6 2. d4 g6 3. Bf4 Bg7 4. c3 O-O 5. e3 d6 6. h3 c5 7. dxc5 dxc5 8. Qxd8 Rxd8 9. Bc7 Rd7 10. Bh2 Rd8
1924 Buenos Aires – Round 7 – Fernandez Coria, Valentin – 0-1 – Reti, Richard – G21
1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. c3 b6 5. Nbd2 Bb7 6. Qc2 c5 7. e3 O-O 8. Bd3 Nc6 9. dxc5 bxc5 10. Ne4 Nxe4
1925 BCF Ch 18th – Round 2 – Moses, George Wyville – 0-1 – Yates, Fred Dewhirst – G9
1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. c3 d6 5. h3 Nc6 6. Nbd2 O-O 7. e4 Nd7 8. Qc2 e5 9. dxe5 Ndxe5 10. Be2 Qe8
1949 Budapest-Moscow – Round 12 – Tipary, Lajos – 0-1 – Kotov Lundqvist, Alex – G90
1. d4 Nf6 2. Nf3 g6 3. c3 Bg7 4. Bf4 O-O 5. h3 b6 6. Nbd2 Bb7 7. e3 d6 8. Qc2 Nbd7 9. Rd1 c5 10. Be2 Rc8
1957 USA Ch Open 58th – Round 2 – Grombacher, Walter – 0-1 – Berliner, Hans – G11
1. d4 Nf6 2. Nf3 g6 3. c3 Bg7 4. Bf4 O-O 5. e3 d6 6. Be2 Nbd7 7. Nbd2 Re8 8. O-O e5 9. dxe5 dxe5 10. Bg5 Nc5
1959 URS Team Ch – Round 1 – Keres, Paul Petrovich – 1/2-1/2 – Boleslavsky, Isaac – G40
1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. c3 O-O 5. Nbd2 d6 6. e4 Nc6 7. Bb5 e5 8. dxe5 dxe5 9. Be3 Qd6 10. b4 b6
1961 Baku ch-URS – Round 17 – Bronstein, David I – 1-0 – Kots, Yuri I – G158
1. d4 Nf6 2. Nf3 g6 3. c3 Bg7 4. Bf4 O-O 5. Nbd2 Nh5 6. Be5 f6 7. g4 fxe5 8. gxh5 exd4 9. cxd4 gxh5 10. e3 d5
1961 Maroczy Memorial – Round 1 – Bronstein, Daniel E – 1/2-1/2 – Kortchnoi, V. – G26
1. d4 Nf6 2. Nf3 g6 3. c3 Bg7 4. Bf4 d6 5. h3 O-O 6. Nbd2 c5 7. dxc5 dxc5 8. e4 b6 9. Bc4 Nc6 10. O-O Na5
1962 Poznan ch POL – Round 1 – Gawlikowski, Stanislaw – 1/2-1/2 – Schmidt, Wlodzimierz – G3
1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. c3 O-O 5. Nbd2 d6 6. h3 Nbd7 7. e3 c5 8. Be2 a6 9. O-O b5 10. a4 Rb8
1962 Stockholm Interzonal – Round 9 – Bisguier, Arthur B – 0-1 – Gligorić, Svetozar – G80
1. d4 Nf6 2. Nf3 g6 3. c3 Bg7 4. Bf4 d6 5. h3 O-O 6. e3 Nc6 7. Bb5 a6 8. Ba4 b5 9. Bb3 Na5 10. Bc2 Nc4
1963 URS Ch sf – Round ? – Novopashin, Arkady – 1/2-1/2 – Simagin, Vladimir – G6
1. d4 Nf6 2. Nf3 g6 3. c3 Bg7 4. Bf4 d6 5. e3 O-O 6. h3 b6 7. Nbd2 Bb7 8. Bc4 c5 9. O-O Nbd7 10. Re1 a6
1964 Kiev ch-URS – Round 1 – Bronstein, David I – 1-0 – Borisenko, Georgy K – G55
1. d4 Nf6 2. Nf3 g6 3. c3 Bg7 4. Bf4 O-O 5. Nbd2 d6 6. e4 Nc6 7. Bc4 Bg4 8. Qc2 d5 9. Be2 Nxe4 10. Nxe4 Bf5
1964 Warsaw ch-POL – Round 1 – Lopez Sliwinski, Alvaro – 1/2-1/2 – Balcerowski, Witold – G7
1. d4 Nf6 2. Nf3 g6 3. c3 Bg7 4. Bf4 d6 5. h3 Nbd7 6. e3 O-O 7. Nbd2 Re8 8. Be2 e5 9. dxe5 dxe5 10. Bh2 e4
1965 Buenos Aires – Round 1 – Bolbochan, J. – 1/2-1/2 – Cafure, Emilio – G14
1. d4 Nf6 2. Nf3 g6 3. c3 Bg7 4. Bf4 d6 5. e3 O-O 6. Be2 Nbd7 7. O-O Qe8 8. h3 e5 9. dxe5 dxe5 10. Bh2 Qe7
1965 Hamburg etc – Round 2 – Bronstein, David I – 1/2-1/2 – Gunsberger, Alexander – G64
1. d4 Nf6 2. Nf3 g6 3. c3 Bg7 4. Bf4 b6 5. Nbd2 c5 6. e3 O-O 7. a4 d6 8. a5 Ba6 9. Bxa6 Nxa6 10. Qe2 Nc7
1966 Asztalos Memorial 9th – Round 5 – Bronstein, David I – 1-0 – Navarovszky, Laszlo – G25
1. d4 Nf6 2. Nf3 g6 3. c3 Bg7 4. Bf4 O-O 5. Nbd2 d5 6. e3 b6 7. a4 a5 8. Bb5 Bb7 9. O-O Ne8 10. b4 Nd6
1966 FRA Ch 41st – Round 9 – Ferry, Roger – 1/2-1/2 – Sanner, Michel – G16
1. d4 Nf6 2. Nf3 g6 3. c3 Bg7 4. Bf4 b6 5. Nbd2 Bb7 6. Qc2 O-O 7. e4 d6 8. Bd3 Nbd7 9. O-O Nh5 10. Bg5 f6
1967 Havana Armies Ch 4th – Round 11 – Vadasz, Laszlo – 1/2-1/2 – Hort, Vlastimil – G67
1. d4 Nf6 2. Nf3 g6 3. c3 Bg7 4. Bf4 d5 5. e3 c6 6. Bd3 Bf5 7. Bxf5 gxf5 8. Nbd2 Nbd7 9. Ne5 Nf8 10. Qc2 e6
1967 Krems – Round ? – Bronstein, David I – 0-1 – Lambert, Hans – G16
1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. c3 O-O 5. e3 b6 6. Be2 Bb7 7. O-O d6 8. a4 a5 9. Na3 Nbd7 10. Nc4 e6
1967 Szeczin – Round 10 – Schmidt, Wlodzimierz – 1-0 – Witkowski, Stefan – G8
1. d4 Nf6 2. Nf3 g6 3. c3 Bg7 4. Bf4 O-O 5. Nbd2 d5 6. e3 b6 7. Bd3 Bb7 8. O-O Nbd7 9. a4 Nh5 10. Bg5 h6
1967 Zinnowitz – Round 1 – Spiridonov, Nikola – 1/2-1/2 – Malich, Burkhard, Dr. – G21
1. Nf3 g6 2. d4 Nf6 3. c3 Bg7 4. Bf4 O-O 5. e3 d5 6. Bd3 Nc6 7. Ne5 Nxe5 8. Bxe5 c6 9. Nd2 Be6 10. O-O Qd7
1968 CSR Ch – Round 13 – Plachetka, Jan – 0-1 – Kavalek, Lubomir – G116
1. d4 Nf6 2. Nf3 g6 3. c3 Bg7 4. Bf4 d6 5. h3 O-O 6. e3 Nbd7 7. Nbd2 Qe8 8. Bh2 e5 9. dxe5 Nxe5 10. Nxe5 dxe5
1968 Hungary – Round 1 – Vadasz, Laszlo – 1/2-1/2 – Bilek, Istvan – G14
1. d4 Nf6 2. Nf3 g6 3. c3 Bg7 4. Bf4 d6 5. h3 O-O 6. e3 Nbd7 7. Be2 a6 8. O-O Qe8 9. Bh2 e5 10. c4 Ne4
1968 POL Ch 25th – Round 2 – Sliwinski, Henryk – 0-1 – Bednarski, Jacek B – G7
1. d4 g6 2. Nf3 Bg7 3. c3 Nf6 4. Bf4 O-O 5. e3 b6 6. h3 c5 7. Be2 d6 8. O-O Bb7 9. a4 a6 10. Nbd2 Nc6
1968 Rubinstein Memorial – Round 6 – Doda, Zbigniew – 1/2-1/2 – Kavalek, Lubomir – G36
1. d4 Nf6 2. Nf3 g6 3. c3 Bg7 4. Bf4 d6 5. h3 O-O 6. e3 Nbd7 7. Be2 Re8 8. O-O e5 9. Bh2 Qe7 10. a4 h5
1990 Linares 8th – Round 9 – Portisch, Lajos – 0-1 – Gulko, Boris – G53
1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. c3 b6 5. e3 Bb7 6. h3 O-O 7. Be2 d6 8. O-O c5 9. Nbd2 Nbd7 10. Bh2 Qc7
20. European Teams 2015 – Round 8.3 – Berkes, Ferenc – 1-0 – Safarli, Elmir – G345
1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. c3 O-O 5. Nbd2 d6 6. e4 c5 7. dxc5 dxc5 8. h3 Nc6 9. Bb5 Bd7 10. O-O Ne5
41. Olympiad Open 2014 – Round 11.18 – Cori, Jorge – 1-0 – Vocaturo, Daniele – G769
1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. c3 O-O 5. e3 d6 6. h3 b6 7. Be2 Bb7 8. O-O Nbd7 9. Bh2 Re8 10. a4 a5
43. Olympiad 2018 – Round 1.34 – Yarmonov, Igor – 1/2-1/2 – Radjabov, Teimour – G45
1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. c3 d6 5. h3 O-O 6. Nbd2 Nfd7 7. e4 e5 8. dxe5 Nxe5 9. Nxe5 dxe5 10. Be3 Nd7
Makedonia Palace GP 2013 – Round 3.3 – Kamsky, Gata – 1/2-1/2 – Grischuk, Alexander – G14
1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. c3 d6 5. h3 O-O 6. Nbd2 c5 7. dxc5 dxc5 8. e4 Nc6 9. Be2 Nh5 10. Bh2 b6
Saint Louis Rapid and Blitz 2025 – Round 19 – Abdusattorov Nodirbek – 1-0 – Vachier-Lagrave Maxime – G91
1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. c3 O-O 5. Nbd2 d6 6. e4 Nbd7 7. Be2 Qe8 8. h3 e5 9. dxe5 dxe5 10. Be3 b6
Saint Louis Rapid and Blitz 2025 – Round 24 – Abdusattorov Nodirbek – 1/2-1/2 – Sam Shankland – G119
1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. c3 d6 5. Nbd2 O-O 6. e4 Nc6 7. Be2 Nd7 8. d5 Ncb8 9. O-O e5 10. dxe6 fxe6
Sharjah Grand Prix 2017 – Round 3.9 – Tomashevsky, Evgeny – 1/2-1/2 – Salem, A.R. Saleh – G27
1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. c3 O-O 5. e3 d6 6. h3 Nc6 7. Be2 Nd7 8. O-O e5 9. Bh2 f5 10. a4 Qe7
USA Ch 2016 – Round 11.6 – Kamsky, Gata – 1/2-1/2 – Shankland, Sam – G65
1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. c3 d6 5. h3 O-O 6. e3 Nbd7 7. Be2 b6 8. a4 a5 9. O-O Bb7 10. Na3 Ne4
World Blitz 2018 – Round 3.45 – Kamsky, Gata – 1/2-1/2 – Mikhalevski, Victor – G177
1. d4 Nf6 2. Nf3 g6 3. c3 Bg7 4. Bf4 O-O 5. Nbd2 d6 6. h3 Nbd7 7. e3 Qe8 8. Bh2 e5 9. Nc4 e4 10. Nfd2 Qe7
World Blitz 2019 – Round 11.34 – Jakovenko, Dmitry – 1-0 – Golubov, Saveliy – G745
1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. c3 O-O 5. Nbd2 d6 6. h3 Nc6 7. e4 Nd7 8. Be2 e5 9. dxe5 Ndxe5 10. O-O Re8
World Blitz 2019 – Round 9.23 – Kamsky, Gata – 1/2-1/2 – Safarli, Elmir – G606
1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. c3 O-O 5. Nbd2 d6 6. e4 c5 7. dxc5 dxc5 8. h3 Nc6 9. Be2 b6 10. O-O Nh5
World Rapid 2019 – Round 1.59 – Demchenko, Aleksandr – 1/2-1/2 – Xu, Xiangyu – G46
1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. c3 d6 5. Nbd2 O-O 6. e4 Qe8 7. Qc2 e5 8. dxe5 Nh5 9. Be3 Bxe5 10. Nxe5 Qxe5
World Rapid 2019 – Round 5.53 – Demchenko, Aleksandr – 1/2-1/2 – Vishnu Prasanna, V – G337
1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. c3 O-O 5. Nbd2 d6 6. e4 Nc6 7. Qc2 b6 8. Be2 Bb7 9. Rd1 Nh5 10. Be3 e5
World Rapid 2019 – Round 8.29 – Kamsky, Gata – 1/2-1/2 – Moiseenko, Vadim – G513
1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. c3 d6 5. h3 O-O 6. e3 Nc6 7. Bh2 Nd7 8. Be2 e5 9. Na3 Qe7 10. Nc4 Nb6

A48i — Neo-King’s Indian: London System (1924)
1.d4 Nf6 2.Nf3 g6 3.Bf4 Bg7 4.c3
Les coups candidats
4…O-O — 49.9% (1414 parties)
Ambassadeurs : Kamsky, Gata (25x), Hoffman, Alejandro (12x), Bouhallel, Rabah (11x), Schlindwein, Rolf (8x), Duschek, Guenter (7x), Langeweg, Kick (6x), Georgieva, Emilia (6x), Mahitosh Dey (6x)
4…d6 — 38.1% (1080 parties)
Ambassadeurs : Bohnstorff, Michael (9x), Kamsky, Gata (8x), Schwertel, Johann (7x), Mrkonjic, Nenad (7x), Herrmann, Andreas (7x), Milanowski, Jan (6x), Catteau, Bruno (5x), Bouhallel, Rabah (5x)
4…b6 — 6.2% (176 parties)
Ambassadeurs : Dreev, Aleksey (4x), Cibulka, Vladimir (4x), Pribyl, Josef (3x), Neverov, Valeriy (3x), Gulko, Boris (3x), Popchev, Milko (3x), Burmakin, Vladimir (3x), Smyslov, Vasily (2x)
4…d5 — 4.2% (118 parties)
Ambassadeurs : Vadasz, Laszlo (1x), Hort, Vlastimil (1x), Stuart, E Leslie (1x), Walker, David J (1x), Ehrke, Michael (1x), Schruefer, Guenther, Dr. (1x), Laketic, Gojko (1x), Popov, Jovan (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 4…O-O 4…d6 4…b6 4…d5
<1800 197 51% 40% 2% 4%
1800-2200 1266 47% 42% 5% 5%
2200-2600 988 54% 33% 9% 3%
2600+ 70 59% 29% 11%
Évolution par décennie (% des parties)
Décennie N parties 4…O-O 4…d6 4…b6 4…d5
1950s 6 33% 67%
1960s 34 38% 44% 15% 3%
1970s 48 27% 46% 21% 2%
1980s 76 50% 32% 11% 7%
1990s 537 48% 38% 7% 6%
2000s 781 47% 41% 6% 4%
2010s 977 53% 37% 5% 3%
2020s 376 54% 34% 6% 3%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
4…O-O 53% 54% ▲ +1.4%
4…d6 37% 34% ▼ -2.7%
4…b6 5% 6% ▲ +0.6%
4…d5 3% 3% +0.1%
Joueurs célèbres
Champions du monde dans cette position
Ding, Liren — 3 parties
Karpov, Anatoly — 1 partie
Kramnik, Vladimir — 1 partie
Ju, Wenjun — 1 partie
Parties historiques
4…O-O — 49.9% (1414 parties)
1957 — Grombacher, Walter vs Berliner, Hans — 0-1 — Cleveland, OH USA
1959 — Keres, Paul Petrovich vs Boleslavsky, Isaac — 1/2-1/2 — Moscow RUS
1960 — Larsen, Bent Ravn vs Andersen, Borge — 0-1 — Copenhagen DEN
1960 — Bronstein, David I vs Giterman, Shlomo — 1-0 — Odessa UKR
1961 — Bronstein, David I vs Kots, Yuri I — 1-0 — Baku ch-URS
4…d6 — 38.1% (1080 parties)
1951 — Romih, Max vs Nestler, Vincenzo — 0-1 — Venice ch14-ITA
1952 — Tipary, Lajos vs Szilagyi, Gyorgy Laszlo — 0-1 — Debrecen HUN
1954 — Grombacher, Walter vs Lombardy, William J — 0-1 — New Orleans, LA USA
1955 — A Aman vs Krenzisky, G. — 1-0 — Sodertalje
1961 — Bronstein, David I vs Korchnoi, Viktor — 1/2-1/2 — Budapest HUN
4…b6 — 6.2% (176 parties)
1961 — Smyslov, Vasily vs Geller, Efim P. — 0-1 — Moscow USSR Team ch
1965 — Bronstein, David I vs Gunsberger, Alexander — 1/2-1/2 — Hamburg etc
1966 — Ferry, Roger vs Sanner, Michel — 1/2-1/2 — Grenoble FRA
1967 — Sorokin, Maxim vs Abanin, Vladimir — 1-0 — ?
1967 — Sorokin, Nikolay vs Abanin, Vladimir — 1-0 — Leningrad RUS
4…d5 — 4.2% (118 parties)
1967 — Vadasz, Laszlo vs Hort, Vlastimil — 1/2-1/2 — Havana CUB
1975 — Voiculescu, Paul vs Ott, Wolfgang — 1/2-1/2 — Sinaia
1980 — Laketic, Gojko vs Popov, Jovan — 1-0 — Virovitica
1987 — Lebel-Arias, Julia vs Canela Gimenez, Teresa — 1/2-1/2 — Tuzla
1987 — von Kiedrowski, Klemens vs Hierholz, Bernd — 1/2-1/2 — Muenster GER

Fin du contenu

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