A47s - 4…e6 (1914)

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A47s —
1.d4 Nf6 2.Nf3 b6 3.Bf4 Bb7 4.e3 e6
Les coups candidats
5.Nbd2 — 39.4% (2771 parties)
Ambassadeurs : Ortega, Lexy (15x), Blatny, Pavel (12x), Karlik, Vladimir (12x), Knezevic, Milorad (10x), Ehrke, Michael (10x), Kovacevic, Slobodan (8x), Contreras Poblete, Juan Antonio (8x), Bosque Ortega, Xavier (6x)
5.Bd3 — 35.0% (2463 parties)
Ambassadeurs : Mueller, Michael (9x), Prie, Eric (8x), Chanda, Sandipan (7x), Bandiera, Aurelio (6x), Knezevic, Milorad (5x), Bronstein, David I (5x), Bulmaga, Irina (5x), Georghiou, Antonis (4x)
5.h3 — 10.3% (721 parties)
Ambassadeurs : Pakleza, Zbigniew (12x), Grachev, Boris (6x), Prie, Eric (5x), Volkov, Anton (4x), Olejarczyk, Bogdan (4x), Lange, Helmut (3x), Szurovszky, Elek (3x), Pham, Le Thao Nguyen (3x)
5.Be2 — 10.0% (703 parties)
Ambassadeurs : Lenz, Juergen (24x), Ledger, Stephen C (10x), Hackbarth, Christa (6x), Sandum, Kjell Tore (5x), Esipenko, Andrey (4x), Nagel, Verena (3x), Voelz, Stephan (3x), Hoehne, Volkmar (3x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 5.Nbd2 5.Bd3 5.h3 5.Be2
<1800 630 37% 35% 7% 11%
1800-2200 3404 39% 37% 8% 11%
2200-2600 2291 41% 32% 14% 8%
2600+ 89 29% 28% 33% 3%
Évolution par décennie (% des parties)
Décennie N parties 5.Nbd2 5.Bd3 5.h3 5.Be2
1950s 9 56% 33% — 11%
1960s 18 61% 39% — —
1970s 52 50% 33% 8% 2%
1980s 262 47% 32% 6% 9%
1990s 803 46% 33% 8% 9%
2000s 1556 43% 34% 8% 10%
2010s 3256 37% 37% 11% 11%
2020s 1073 35% 35% 14% 8%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
5.Nbd2 37% 35% ▼ -1.4%
5.Bd3 37% 35% ▼ -1.5%
5.h3 11% 14% ▲ +3.1%
5.Be2 11% 8% ▼ -2.4%
Joueurs célèbres
Champions du monde dans cette position
Kasparov, Garry — 3 parties
Ju, Wenjun — 3 parties
Hou, Yifan — 3 parties
Karpov, Anatoly — 2 parties
Carlsen, Magnus — 2 parties
Kramnik, Vladimir — 2 parties
Parties historiques
5.Nbd2 — 39.4% (2771 parties)
1952 — Romih, Max vs Eugenio, Sarah De Oliveira — 0-1 — Ferrara
1952 — Romih, Max vs Magrin, Antonio — 1-0 — Ferrara
1956 — Romih, Max vs Magrin, Antonio — 1/2-1/2 — ITA-ch18 Rovigo
1958 — G.k.p., Rubel vs Ketslakh, Anatolij — 1-0 — Leningrad RUS
1959 — Malcolm, Colin M vs Nield, Alan Edgar — 1-0 — York ENG
5.Bd3 — 35.0% (2463 parties)
1951 — Fel, C. vs Anderson, Frank Ross — 0-1 — Toronto CAN
1958 — Breustedt, Werner vs Pietzsch, Wolfgang — 1/2-1/2 — GDR-ch Schkopau GER
1959 — Badestein, Hartmut, Prof. Dr. vs Pietzsch, Wolfgang — 0-1 — GDR-ch Leipzig GER
1964 — Krizsan-Bilek, Gyulane vs Skegina, Klaara — 1-0 — Ordzhonikidze
1965 — Kubisch, Guido vs Groenegress, Wilfried — 1/2-1/2 — Ennigerloh
5.h3 — 10.3% (721 parties)
1972 — Siklos, Alex Sandor vs Sarosy, Zoltan L — 1-0 — CCCA corr
1978 — Szurovszky, Elek vs Toth, Laszlo — 1/2-1/2 — Salgotarjan
1978 — Beliman, Oliver vs Korchnoi, Viktor — 0-1 — Beer Sheba ISR
1979 — Bronstein, David I vs Vilela De Acuna, Jose Luis — 1-0 — Tallinn EST
1980 — Paehtz, Thomas vs Weider, Dariusz — 1-0 — Jelenia Gora
5.Be2 — 10.0% (703 parties)
1955 — Dollstadt, Jean Walter vs Chaude de Silans, Chantal — 1/2-1/2 — Toulouse FRA
1978 — Munck Mortensen, Peter vs Jensen, Rene Skree — 1-0 — dkch-jr Ribe
1981 — Hartston, William R vs Pritchett, Craig W — 1/2-1/2 — Morecambe ch-BCF
1981 — Mokry, Karel vs Ljangov, Petar — 1-0 — Budapest HUN
1981 — Fornaciari, Marco vs Rossato, Gino — 1-0 — Caorle ITA