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D23d — QGA: Mannheim (1937)
1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.Qa4+ Nc6
Les coups candidats
Ambassadeurs : Crouch, Colin S (3x), Sadler, Matthew D (3x), Dlugy, Maxim (3x), Petrosian, Tigran V. (2x), Andersson, Ulf (2x), Korchnoi, Viktor (2x), Knezevic, Milorad (2x), Stohl, Igor (2x)
5.Qxc4 — 37.1% (218 parties)
Ambassadeurs : Gretarsson, Helgi Ass (2x), Jackova, Jana (2x), Schmidt, Gerhard (1x), Golz, Werner (1x), Barbero, Gerardo Fabián (1x), Keller, Dieter (1x), Tomaszewski, Roman (1x), Szymczak, Zbigniew (1x)
5.e3 — 19.1% (112 parties)
Ambassadeurs : Andersson, Ulf (4x), Flohr, Salo (2x), Timman, Jan H (2x), Lechtynsky, Jiri (2x), ? (2x), Pawnocchio (2x), Gerusel, Mathias (1x), Lohse, Steffen (1x)
5.g3 — 3.9% (23 parties)
Ambassadeurs : Sioev (1x), Kalashian, Aleks (1x), Zilber, Israel (1x), Bukhover, Alik (1x), Gleizerov, Evgeny (1x), Meister, Jakob (1x), Tukmakov, Vladimir B (1x), Kozlov, Vladimir N (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 5.Nc3 5.Qxc4 5.e3 5.g3
<1800 23 26% 65% — 4%
1800-2200 168 29% 46% 21% 2%
2200-2600 269 43% 28% 22% 6%
2600+ 19 58% 16% 26% —
Évolution par décennie (% des parties)
Décennie N parties 5.Nc3 5.Qxc4 5.e3 5.g3
1950s 3 33% — 67% —
1960s 17 65% 6% 12% 12%
1970s 7 43% 14% 43% —
1980s 55 45% 29% 18% 7%
1990s 133 46% 36% 11% 5%
2000s 150 38% 43% 15% 3%
2010s 157 30% 41% 24% 3%
2020s 65 23% 37% 32% 3%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
5.Nc3 30% 23% ▼ -6.9%
5.Qxc4 41% 37% ▼ -3.8%
5.e3 24% 32% ▲ +8.7%
5.g3 3% 3% -0.1%
Joueurs célèbres
Champions du monde dans cette position
Carlsen, Magnus — 2 parties
Botvinnik, Mikhail — 1 partie
Anand, Viswanathan — 1 partie
Parties historiques
5.Nc3 — 37.5% (220 parties)
1952 — Glotov, Vladimir vs Flohr, Salo — 1/2-1/2 — Moscow RUS
1960 — Petrosian, Tigran V. vs Golz, Werner — 1-0 — Copenhagen DEN
1961 — Hadi, Adrian vs Clarke, Peter — 1/2-1/2 — Aberystwyth
1961 — Koch, Berthold vs Pietzsch, Wolfgang — 1/2-1/2 — DDR
1962 — Petrosian, Tigran A. vs Kortchnoi, V. — 1/2-1/2 — Curacao ct
5.Qxc4 — 37.1% (218 parties)
1964 — Schmidt, Gerhard vs Golz, Werner — 1/2-1/2 — Magdeburg GER
1979 — Pachman, Ludek vs Van der Sterren, Paul — 1-0 — Lone Pine open
1980 — Duggan, Dan vs Livich, Nick — 1-0 — New Westminster
1980 — Ghitescu, Theodor vs Stoica, Valentin — 1/2-1/2 — Bucharest ROU
1980 — Petran, Pal vs Kallai, Gabor — 1-0 — Hungary ch
5.e3 — 19.1% (112 parties)
1951 — Kotov, Aleksander vs Flohr, Salo — 0-1 — USSRch
1951 — Kotov, Alexander vs Flohr, Salo — 0-1 — Moskou ch-URS
1963 — Gerusel, Mathias vs Lohse, Steffen — 1-0 — FRG-ch Bad Pyrmont GER
1963 — Kogan, Boris M vs Bukhover, Alik — 1-0 — Kiev UKR
1970 — Radojevic, Miomir vs Kupreichik, Viktor D — 0-1 — Sombor
5.g3 — 3.9% (23 parties)
1963 — Sioev vs Kalashian, Aleks — 0-1 — Moscow tt
1963 — Zilber, Israel vs Bukhover, Alik — 1-0 — Kiev UKR
1984 — Tukmakov, Vladimir B vs Kozlov, Vladimir N — 1-0 — USSR
1986 — Panczyk, Krzysztof vs Lanc, Alois — 0-1 — Porabka-Kozubnik
1987 — Bartels, Hans vs Mork, Kjell Arne — 1-0 — Aalborg DEN