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A48g — London System
1.d4 Nf6 2.Nf3 g6 3.Bf4 Bg7
Eval: [+0.05]
Les coups candidats
Ambassadeurs : Lenz, Juergen (83x), Glienke, Manfred, Dr. (64x), Burmakin, Vladimir (55x), Payen, Arnaud (42x), Zhukova, Natalia (40x), Ehrke, Michael (40x), Mueller, Michael (39x), Le, Kieu Thien Kim (35x)
4.h3 — 8.7% (2093 parties)
Ambassadeurs : Bouaziz, Mehdi (15x), Modrova, Hana (13x), Ernst, Michael (13x), Wacior, Maciej (9x), Wall, Gavin (8x), Henn, Wolfgang (8x), Svonavec, Stefan (8x), Benesch, Heribert (7x)
Ambassadeurs : Meixner, Ferenc (12x), Vavra, Jan (11x), Koller, Hubert (10x), Taimanov, Mark (9x), Fronczek, Heinrich (9x), Steinhagen, Dietrich (9x), Prevenios, Michail (9x), Lunkiewicz, Dariusz (9x)
Ambassadeurs : Kamsky, Gata (34x), Mahitosh Dey (11x), Duschek, Guenter (8x), Kotlar, Alfred (8x), Burmakin, Vladimir (8x), Schwertel, Johann (8x), Milanowski, Jan (8x), Jacobsen, Mikkel Manosri (8x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 4.e3 4.h3 4.Nbd2 4.c3
<1800 1295 73% 11% 6% 4%
1800-2200 10238 71% 9% 8% 5%
2200-2600 7532 78% 7% 6% 5%
2600+ 278 71% 3% 3% 23%
Évolution par décennie (% des parties)
Décennie N parties 4.e3 4.h3 4.Nbd2 4.c3
1900s 1 100%
1920s 40 22% 20% 32% 10%
1930s 40 48% 15% 10% 2%
1940s 35 63% 3% 23% 3%
1950s 143 47% 15% 24% 2%
1960s 199 58% 9% 23% 4%
1970s 276 69% 7% 9% 6%
1980s 1011 79% 7% 10% 1%
1990s 4499 71% 10% 10% 4%
2000s 6121 72% 9% 9% 5%
2010s 9857 75% 8% 6% 5%
2020s 1887 70% 7% 4% 10%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
4.e3 75% 70% ▼ -4.2%
4.h3 8% 7% ▼ -1.7%
4.Nbd2 6% 4% ▼ -1.1%
4.c3 5% 10% ▲ +5.1%
Joueurs célèbres
Champions du monde dans cette position
Smyslov, Vladimir — 10 parties
Euwe, Max — 8 parties
Ju, Wenjun — 7 parties
Kasparov, Garry — 6 parties
Carlsen, Magnus — 6 parties
Karpov, Anatoly — 5 parties
Ding, Liren — 4 parties
Alekhine, Alexander — 3 parties
Botvinnik, Mikhail — 2 parties
Karpov, Aleksandr — 2 parties
Lasker, Emanuel — 1 partie
Anand, Viswanathan — 1 partie
Gukesh D — 1 partie
Kramnik, Vladimir — 1 partie
Parties historiques
4.e3 — 72.4% (17459 parties)
1907 — Akonde Marshall vs Burn, Allan — 1-0 — Ostend
1923 — Sifalda Vaclav vs Prochazka, Hubert — 1/2-1/2 — Pardubice CZE
1923 — Speijer, Abraham vs Euwe, Max — 0-1 — Amsterdam NED
1923 — Speyer, Dimitri vs Euwe, Max — 0-1 — Amsterdam Club Ch.
1926 — Machate, Gustav vs Zinner, Sandor — 0-1 — Unofficial Olympiad
4.h3 — 8.7% (2093 parties)
1923 — Van Trotsenburg, Boudewijn vs Euwe, Max — 0-1 — Amsterdam NED
1923 — Van Trotsenburg, B vs Euwe, Max — 0-1 — Amsterdam NED
1924 — Renaud, Georges vs Voellmy, Erwin — 0-1 — Paris FRA
1924 — Fernandez Coria, Valentin vs Guerra Boneo — 1-0 — Buenos Aires ARG
1924 — Grau, Roberto G vs Reti, Richard — 0-1 — Buenos Aires ARG
4.Nbd2 — 7.6% (1835 parties)
1922 — Watson, William N vs Euwe, Max — 0-1 — London ENG
1922 — Guillen Watson, Cesar Augusto vs Euwe, Max — 0-1 — London ENG
1922 — Schlage, William vs Gruber, Sandor — 1-0 — Bad Oeynhausen GER
1922 — Alekhine, Alexander vs Euwe, Max — 1-0 — London ENG
1923 — Holmes, Harry vs Maroczy, Geza — 0-1 — Liverpool
4.c3 — 5.2% (1250 parties)
1923 — Helling, Bernd vs Thoenes — 0-1 — Frankfurt GER
1924 — Coria Fernandez, V vs Reti, Richard — 0-1 — Buenos Aires /07/
1924 — Fernandez Coria, Valentin vs Reti, Richard — 0-1 — Buenos Aires ARG
1925 — Moses, George Wyville vs Yates, Fred Dewhirst — 0-1 — Stratford-upon-Avon
1939 — Rodriguez Hurtado, Jorge vs Kiprov, Alexander — 0-1 — Buenos Aires ARG