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A47h —
1.d4 Nf6 2.Nf3 b6 3.Bf4 e6
Les coups candidats
Ambassadeurs : Knezevic, Milorad (18x), Ortega, Lexy (18x), Lenz, Juergen (18x), Contreras Poblete, Juan Antonio (14x), Bronstein, David I (11x), Ledger, Stephen C (11x), Karlik, Vladimir (11x), Prie, Eric (10x)
4.Nbd2 — 10.4% (687 parties)
Ambassadeurs : Kovacevic, Slobodan (20x), Van de Mortel, Jan (7x), Barva, Attila Dr. (5x), Meyer, John (4x), Rakic, Tomislav (4x), Bellon Lopez, Juan Manuel (4x), Eperjesi, Laszlo Dr. (3x), Rak, Taisia (3x)
4.h3 — 3.0% (201 parties)
Ambassadeurs : Bronstein, David I (3x), Henn, Wolfgang (3x), Korkmaz, Burcu (2x), Bagheri , Amir Hossein (2x), Mondrzycki, Bartlomiej (2x), Anikonov, Dmitry (2x), Kaloussis, Evangelos (1x), Delithanasis, Dimitrios (1x)
Ambassadeurs : Jaluvka, Josef (2x), Dobrev, Martin (2x), Giulian, Philip M (1x), Sutherland, Andrew (1x), Weber, Peter (1x), Markus, Tibor (1x), Echenique, Agustin (1x), Stupina, Elena (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 4.e3 4.Nbd2 4.h3 4.c4
<1800 517 80% 9% 6% 1%
1800-2200 3090 83% 11% 3% 1%
2200-2600 2330 87% 9% 3% 0%
2600+ 89 99% 1% — —
Évolution par décennie (% des parties)
Décennie N parties 4.e3 4.Nbd2 4.h3 4.c4
1950s 7 71% 29% — —
1960s 18 56% 44% — —
1970s 61 69% 25% 5% 2%
1980s 310 78% 16% 3% 1%
1990s 878 79% 17% 2% 1%
2000s 1668 81% 11% 4% 1%
2010s 2767 87% 8% 3% 1%
2020s 919 87% 7% 3% 1%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
4.e3 87% 87% +0.3%
4.Nbd2 8% 7% ▼ -0.5%
4.h3 3% 3% +0.2%
4.c4 1% 1% -0.3%
Joueurs célèbres
Champions du monde dans cette position
Hou, Yifan — 6 parties
Ju, Wenjun — 4 parties
Karpov, Anatoly — 3 parties
Kasparov, Garry — 3 parties
Kramnik, Vladimir — 3 parties
Carlsen, Magnus — 1 partie
Parties historiques
4.e3 — 83.6% (5538 parties)
1951 — Fel, C. vs Anderson, Frank Ross — 0-1 — Toronto CAN
1955 — Dollstadt, Jean Walter vs Chaude de Silans, Chantal — 1/2-1/2 — Toulouse FRA
1958 — Breustedt, Werner vs Pietzsch, Wolfgang — 1/2-1/2 — GDR-ch Schkopau GER
1959 — Malcolm, Colin M vs Nield, Alan Edgar — 1-0 — York ENG
1959 — Badestein, Hartmut, Prof. Dr. vs Pietzsch, Wolfgang — 0-1 — GDR-ch Leipzig GER
4.Nbd2 — 10.4% (687 parties)
1952 — Soules, Jorge vs Rodriguez, Camio A — 1/2-1/2 — ?
1956 — Fallone, Michael vs Gupta R S — 1/2-1/2 — Moskou olm
1963 — Meyer, John vs Rogosin, D — 1-0 — USA ch jr
1965 — Doda, Zbigniew vs Balcerowski, Witold — 1/2-1/2 — Lublin POL
1967 — Vadasz, Laszlo vs Fernandez Bravo, Ciro Angel — 1-0 — Havana CUB
4.h3 — 3.0% (201 parties)
1977 — Bronstein, David I vs Csom, Istvan — 1/2-1/2 — Budapest Tungsram
1977 — Cosic, Marin vs Mehmedovic, Mirza — 0-1 — Zagreb CRO
1978 — Shereshevski, Mikhail vs Yuferov, Sergey N — 1/2-1/2 — Minsk BLR
1980 — Barbeau, Sylvain vs Leveille, Francois — 1/2-1/2 — Ste-Agathe
1981 — Knezevic, Milorad vs Schneider, Attila — 1/2-1/2 — Budapest HUN
4.c4 — 1.0% (68 parties)
1979 — Giulian, Philip M vs Sutherland, Andrew — 1-0 — ?
1981 — Weber, Peter vs Markus, Tibor — 1-0 — Suedlohn GER
1983 — Echenique, Agustin vs Stupina, Elena — 1/2-1/2 — Krasnodar RUS
1985 — Preece, Neil vs Levitt, Mark — 1/2-1/2 — Cape Town RSA
1988 — Basagic, Zlatko vs Kosten, Anthony C. — 0-1 — Hastings ENG