D63d - 7…a6 - Orthodox, Swiss Variation (1912)

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D63d — Orthodox, Swiss Variation (1912)
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 Nbd7 7.Rc1 a6
Les coups candidats
Ambassadeurs : Csom, Istvan (11x), Ziatdinov, Raset (11x), Portisch, Lajos (9x), Balashov, Yuri (9x), Plachetka, Jan (6x), Bisguier, Arthur B (4x), Gligoric, Sofija (4x), Timman, Jan H (4x)
Ambassadeurs : Balashov, Yuri (7x), Ziatdinov, Raset (7x), Vaganian, Rafael A (7x), Christiansen, Larry (4x), Csom, Istvan (4x), Schmidt, Wlodzimierz (4x), Goldin, Alexander (4x), Speelman, Jon S (3x)
8.Bd3 — 10.5% (185 parties)
Ambassadeurs : Oledzka, Magdalena (2x), Novotelnov, Nikolai (1x), Khasin, Abram (1x), Litmanowicz, Wladyslaw (1x), Pytlakowski, Andrzej (1x), Martin, Andrew D (1x), Davidovic, Aleksandar (1x), Glenzer, Siegfried (1x)
Ambassadeurs : Ivkov, Borislav (3x), Daly, Colm (2x), Straeter, Timo (2x), Ostenstad, Berge (2x), Wade, Robert G (1x), Uhlmann, Wolfgang (1x), Csom, Istvan (1x), Germek, Milan (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 8.cxd5 8.c5 8.Bd3 8.a3
<1800 81 38% 15% 26% 9%
1800-2200 596 45% 17% 17% 6%
2200-2600 795 55% 24% 3% 6%
2600+ 25 40% 40% — 8%
Évolution par décennie (% des parties)
Décennie N parties 8.cxd5 8.c5 8.Bd3 8.a3
1950s 32 72% 6% 6% 6%
1960s 31 65% 10% — 19%
1970s 99 58% 21% 6% 4%
1980s 198 57% 22% 6% 6%
1990s 460 51% 17% 10% 5%
2000s 528 43% 25% 13% 6%
2010s 354 52% 15% 13% 7%
2020s 60 57% 13% 12% 12%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
8.cxd5 52% 57% ▲ +4.4%
8.c5 15% 13% ▼ -1.6%
8.Bd3 13% 12% ▼ -1.0%
8.a3 7% 12% ▲ +4.9%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 2 parties
Karpov, Anatoly — 1 partie
Carlsen, Magnus — 1 partie
Parties historiques
8.cxd5 — 50.9% (896 parties)
1950 — Van den Berg, Carel B vs Kottnauer, Cenek — 1/2-1/2 — Amsterdam NED
1950 — Gligorić, Svetozar vs Kottnauer, Cenek — 1/2-1/2 — Amsterdam NED
1950 — Gligoric, Sofija vs Kottnauer, Cenek — 1/2-1/2 — Amsterdam NED
1950 — Tordion, S. vs Hogot, Ci — 0-1 — Belgrade SRB
1950 — Bolbochan, Julio vs Maderna, Carlos — 1-0 — Mar del Plata ARG
8.c5 — 19.3% (340 parties)
1952 — Bilozor, Olexander vs Fichtl, Jiri — 0-1 — Tatranska ch CZE
1952 — Adlers, Augusts vs Dreibergs, Leonid — 1/2-1/2 — Latvian Exiles 5254
1967 — Ghitescu, Theodor vs Robatsch, Karl — 1/2-1/2 — Beverwijk NED
1967 — Langeweg, Kick vs Donner, Jan-Hein — 1/2-1/2 — Beverwijk NED
1968 — Szabo, Laszlo vs Liptay, Laszlo Dr. — 1/2-1/2 — HUN
8.Bd3 — 10.5% (185 parties)
1952 — Novotelnov, Nikolai vs Khasin, Abram — 0-1 — URS chT
1955 — Litmanowicz, Wladyslaw vs Pytlakowski, Andrzej — 1/2-1/2 — Poland ch13
1970 — Anderton, David W vs Farooqui, Zahiruddin — 1/2-1/2 — Coventry ch-BCF
1970 — Burgalat, Francisco J vs Rakic, Olivera — 0-1 — Mar del Plata ARG
1973 — Cheng, Winter vs Janssen, Lieselotte — 1-0 — Erfurt GER
8.a3 — 6.2% (110 parties)
1950 — Benini, Clarice vs Larsen, Ingrid — 1-0 — Moscow RUS
1951 — Germek, Milan vs Ivkov, Borislav — 1-0 — Sarajevo BIH
1965 — Ivkov, Borislav vs Wade, Robert G — 1-0 — Havana CUB
1966 — Hempson, Peter W vs Tabakiernik, W. — 0-1 — Sunderland ch-BCF
1967 — Volpert, Larisa vs Kushnir, Alla — 0-1 — Moscow RUS