D25j - 6.O-O - QGA: Janowski-Larsen (1906)

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D25j — QGA: Janowski-Larsen (1906)
1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 Bg4 5.Bxc4 e6 6.O-O
Les coups candidats
6…Nbd7 — 37.3% (406 parties)
Ambassadeurs : Matulovic, Milan (7x), Miles, Anthony J (6x), Vega Gutierrez, Sabrina (6x), Schmitz, Manuela (5x), Peng, Zhaoqin (5x), Rajkovic, Dusan (4x), Sarakauskiene, Zivile (4x), De Lomas Busquets, Alba (4x)
6…a6 — 37.2% (405 parties)
Ambassadeurs : Khamitskiy, Sergei (7x), Hort, Vlastimil (5x), Alekseenko, Kirill (5x), Zsiltzova-Lisenko, Lubov (5x), Matulovic, Milan (4x), Kiselev, Artiom (4x), Kocheev, Aleksandr (4x), Gonda, Laszlo (3x)
6…Nc6 — 8.9% (97 parties)
Ambassadeurs : Ptak, Pavel (3x), Fulgenzi, Ernesto (2x), Karpatchev, Aleksandr (2x), Jakubek, Peter (2x), Jahnz, Fabian (2x), Vistaneckis, Isakas (1x), Klavins, Janis (1x), Averbakh, Yuri L (1x)
6…Bd6 — 8.8% (96 parties)
Ambassadeurs : Cheng, Winter (4x), Jobava, Baadur (4x), Reimann, Sebastian (2x), Kaunz, Werner (1x), Vatarescu, P. (1x), Alatortsev, Vladimir N. (1x), Bokuchava, Alexander (1x), Maslennikova, Albina (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 6…Nbd7 6…a6 6…Nc6 6…Bd6
<1800 34 32% 32% 12% 12%
1800-2200 407 42% 32% 9% 8%
2200-2600 483 33% 46% 10% 7%
2600+ 4 25% 50% 25% —
Évolution par décennie (% des parties)
Décennie N parties 6…Nbd7 6…a6 6…Nc6 6…Bd6
1950s 3 67% 33% — —
1960s 49 47% 41% 4% 6%
1970s 65 54% 32% 3% 5%
1980s 54 43% 46% — 9%
1990s 149 52% 21% 6% 9%
2000s 263 40% 35% 5% 10%
2010s 377 31% 46% 12% 4%
2020s 129 18% 31% 19% 22%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
6…Nbd7 31% 18% ▼ -13.2%
6…a6 46% 31% ▼ -15.1%
6…Nc6 12% 19% ▲ +7.4%
6…Bd6 4% 22% ▲ +18.2%
Parties historiques
6…Nbd7 — 37.3% (406 parties)
1957 — Al Husari, Zita Fatima vs Szilagyi, Gyorgy Laszlo — 0-1 — Sofia zt Sofia BUL
1958 — Szukszta, Janus vs Enevoldsen, Jens — 1-0 — Munich GER
1963 — Keene, Raymond D vs Kalton, Nigel J — 1-0 — ?
1963 — Belfort Mattos, Jose N vs Camara, Helder — 1/2-1/2 — Recife
1963 — Meleghegyi, Csaba vs Asaturian, Sergei Rubenovich — 1-0 — Eberhardt Wilhelm Cup prel 63
6…a6 — 37.2% (405 parties)
1957 — Asmundsson, Ingvar vs Agustsson, Gudmundur — 1/2-1/2 — Reykjavik ISL
1960 — Korchnoi, Viktor vs Spassky, Boris V. — 1-0 — Leningrad ch-URS
1963 — Uhlmann, Wolfgang vs Ivkov, Borislav — 1/2-1/2 — Sarajevo BIH
1963 — Kapengut, Albert vs Morgulov, Alexsander M — 1-0 — Soviet Union
1964 — Colon Romero, Miguel vs Boutteville, Cesar — 1/2-1/2 — Tel Aviv ISR
6…Nc6 — 8.9% (97 parties)
1962 — Vistaneckis, Isakas vs Klavins, Janis — 1/2-1/2 — Leningrad RUS
1965 — Averbakh, Yuri L vs Damjanovic, Mato — 1-0 — Hamburg etc
1972 — Archer, Clark Emerson vs Littlewood, John E — 1/2-1/2 — Brighton ch-BCF
1974 — Loheac Ammoun, Frank vs Johannessen, Svein — 1/2-1/2 — Nice FRA
1992 — Justo, Damian vs Fulgenzi, Ernesto — 1-0 — Buenos Aires FMDA tt
6…Bd6 — 8.8% (96 parties)
1964 — Kaunz, Werner vs Vatarescu, P. — 1-0 — cr.
1965 — Alatortsev, Vladimir N. vs Bokuchava, Alexander — 1-0 — Tbilisi GEO
1966 — Maslennikova, Albina vs Fokina, Anna — 0-1 — USSR
1973 — Boettcher, Ilse vs Cheng, Winter — 1-0 — Halle/Saale
1976 — Nemet, Ivan vs Agur, Elieser — 1-0 — ?