A56u - 6.Bd3 - Czech (1922)

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A56u — Czech (1922)
1.d4 Nf6 2.c4 c5 3.d5 e5 4.Nc3 d6 5.e4 Be7 6.Bd3
Les coups candidats
6…O-O — 55.7% (1061 parties)
Ambassadeurs : Braga, Fernando (5x), Skembris, Spyridon (5x), Hort, Vlastimil (4x), Foglar, Stanislav Jr (4x), Mecking, Henrique (3x), Johansson, Gunnar (3x), Chaves, Jussara (3x), Hartston, William R (3x)
6…Nbd7 — 36.7% (699 parties)
Ambassadeurs : Coudari, Camille (12x), Khazankin, Moisei (5x), Hansen, Sune Berg (5x), Mayer, Steven F. (4x), Palek, Miroslav (4x), Peng, Zhaoqin (4x), Atalik, Suat (3x), Gorse, Gerard (3x)
6…a6 — 4.1% (78 parties)
Ambassadeurs : Ciocaltea, Victor (3x), Bisguier, Arthur B (1x), Panno, Oscar (1x), Jankovec, Ivan (1x), Ryc, Ivo (1x), Nicholas (1x), Andersson, Ulf (1x), Colon Romero, Miguel (1x)
6…Na6 — 1.8% (35 parties)
Ambassadeurs : Ary Claudio (1x), Mendes, Silvio Luiz Teixeira (1x), Neis, Dieter (1x), Ungnad, Rainer (1x), Hernandez, Gustavo (1x), Cuellar Gacharna, Miguel (1x), Hasenberg, Wilfried (1x), Landolfi, Franco (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 6…O-O 6…Nbd7 6…a6 6…Na6
<1800 72 50% 38% 7% 4%
1800-2200 767 53% 39% 3% 2%
2200-2600 762 53% 41% 4% 1%
2600+ 11 45% 55% — —
Évolution par décennie (% des parties)
Décennie N parties 6…O-O 6…Nbd7 6…a6 6…Na6
1950s 23 91% 4% 4% —
1960s 107 76% 12% 9% 2%
1970s 98 74% 22% 2% 1%
1980s 118 72% 23% 3% 1%
1990s 374 61% 32% 3% 2%
2000s 535 51% 40% 5% 2%
2010s 555 45% 48% 3% 2%
2020s 94 49% 39% 9% 2%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
6…O-O 45% 49% ▲ +3.9%
6…Nbd7 48% 39% ▼ -8.4%
6…a6 3% 9% ▲ +5.8%
6…Na6 2% 2% +0.1%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 1 partie
Parties historiques
6…O-O — 55.7% (1061 parties)
1950 — Soloviev, Vladimir vs Panov, Vasily — 1-0 — Moscow-ch Moscow RUS
1951 — Gadalinski, Jan vs Antal, Sebestyen — 0-1 — Sopot
1952 — Taimanov, Mark vs Kasparian, Genrikh — 1-0 — Moskou ch-URS
1953 — Heidenfeld, Wolfgang vs Popel, Stepan — 1-0 — Saarbruecken
1953 — Doda, Zbigniew vs Grynfeld, Izaak — 1/2-1/2 — Krakow POL
6…Nbd7 — 36.7% (699 parties)
1958 — Simagin, Vladimir vs Vatnikov, Josif E — 1-0 — Moscow RUS
1966 — Rauch, Joseph Lyon vs Coudari, Camille — 0-1 — Montreal CAN
1967 — Gersho, Jack vs Coudari, Camille — 1-0 — Montreal CAN
1967 — Frymer vs Coudari, Camille — 0-1 — Fitchburg
1967 — Kraidman, Yair vs Smiltiner, Shlomo — 1-0 — Israel
6…a6 — 4.1% (78 parties)
1955 — Bisguier, Arthur B vs Panno, Oscar — 0-1 — Buenos Aires ARG
1965 — Soos, Bela vs Partos, Charles — 1/2-1/2 — Bucharest ROU
1966 — Colon Romero, Miguel vs Ornithopoulos, Nikolaos — 0-1 — La Habana olm prel
1966 — Donner, Jan-Hein vs Gralka, Julian — 1-0 — Groningen NED
1966 — Black, Colin vs Ciocaltea, Victor — 0-1 — Havana olm
6…Na6 — 1.8% (35 parties)
1960 — Ary Claudio vs Mendes, Silvio Luiz Teixeira — 1-0 — ?
1968 — Neis, Dieter vs Ungnad, Rainer — 0-1 — Saarbruecken
1973 — Hernandez, Gustavo vs Cuellar Gacharna, Miguel — 0-1 — Caracas Caracas VEN
1989 — Hasenberg, Wilfried vs Landolfi, Franco — 1/2-1/2 — ?
1992 — Drkulec, Vlado vs Golonka, S. — 0-1 — Detroit PanAm op