D42d - 7…cxd4 8.exd4 - Semi-Tarrasch

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D42d — Semi-Tarrasch
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c5 5.cxd5 Nxd5 6.e3 Nc6 7.Bd3 cxd4 8.exd4
Les coups candidats
Ambassadeurs : Andrijevic, Milan (9x), Meduna, Eduard (8x), Gheorghiu, Florin (6x), Berg, Klaus (6x), Kavalek, Lubomir (5x), Paunovic, Dragan (5x), Unzicker, Wolfgang (4x), Bobotsov, Milko G (4x)
8…Bb4 — 18.2% (302 parties)
Ambassadeurs : Khenkin, Igor (5x), Schlosser, Philipp (4x), Holt, Conrad (3x), Prudlo, Simon (3x), Dlugy, Maxim (2x), Knudsen, Per (2x), Skembris, Spyridon (2x), Polak, Tomas (2x)
8…g6 — 2.8% (46 parties)
Ambassadeurs : Dunkelblum, Arthur (4x), Najdorf, Miguel (2x), Kottnauer, Cenek (2x), Heilemann, Paul (2x), Reshevsky, Samuel (2x), Josephs, Ian (2x), Euwe, Max (1x), Szabo, Ladislav (1x)
8…Bd6 — 1.3% (22 parties)
Ambassadeurs : Wintergerst, Johannes (1x), Mueller, Sascha (1x), Draba, Henryk (1x), Newton, Hobart E (1x), Beim, Valeri (1x), Atlas, Valery (1x), Cazelais, Marc (1x), Pepin, Christian (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 8…Be7 8…Bb4 8…g6 8…Bd6
<1800 16 44% 50% — 6%
1800-2200 456 73% 19% 3% 2%
2200-2600 844 78% 18% 1% 1%
2600+ 28 61% 36% — 4%
Évolution par décennie (% des parties)
Décennie N parties 8…Be7 8…Bb4 8…g6 8…Bd6
1910s 2 100% — — —
1930s 5 100% — — —
1940s 11 73% — 18% —
1950s 32 66% 3% 25% —
1960s 44 82% 7% 9% —
1970s 49 84% 8% 6% —
1980s 171 89% 8% 1% —
1990s 372 77% 18% 2% 0%
2000s 427 71% 22% 3% 2%
2010s 431 72% 22% 1% 2%
2020s 111 77% 20% 2% 2%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
8…Be7 72% 77% ▲ +4.9%
8…Bb4 22% 20% ▼ -2.2%
8…g6 1% 2% +0.4%
8…Bd6 2% 2% -0.3%
Joueurs célèbres
Champions du monde dans cette position
Karpov, Anatoly — 3 parties
Botvinnik, Mikhail — 2 parties
Euwe, Max — 1 partie
Smyslov, Vladimir — 1 partie
Tal, Mikhail — 1 partie
Ding, Liren — 1 partie
Parties historiques
8…Be7 — 75.3% (1247 parties)
1914 — Yates, Fred Dewhirst vs Blackburne, Joseph — 1/2-1/2 — Chester
1914 — Yates, Frederic D vs Blackburne, Joseph — 1-0 — London ENG
1933 — Stahlberg, Gideon vs Flohr, Salo — 1/2-1/2 — Folkestone ENG
1936 — Najdorf, Miguel vs Barcza, Gedeon — 1-0 — Budapest HUN
1939 — Gerschman, Jose vs Palau, Luis — 1-0 — Buenos Aires ARG
8…Bb4 — 18.2% (302 parties)
1955 — Szabados, Eugenio vs Lasker, Edward — 0-1 — Venezia m
1961 — Vaitonis, Povilas vs Danilov, George — 1-0 — Brockville
1967 — Griffiths, Peter C vs Rayson, HW. — 1-0 — ?
1969 — Whiteley, Andrew Jonathan vs Prins, Lodewijk — 1-0 — London ENG
1970 — Podgaets, Mikhail vs Flesch, Janos — 1/2-1/2 — Sombor
8…g6 — 2.8% (46 parties)
1947 — Najdorf, Miguel vs Euwe, Max — 1/2-1/2 — Buenos Aires ARG
1949 — Kottnauer, Cenek vs Szabo, Ladislav — 1/2-1/2 — Trencianske Teplice SVK
1950 — Kramer, Hanspeter vs Kottnauer, Cenek — 1/2-1/2 — Amsterdam NED
1951 — Florian, Tibor vs Szabo, Laszlo — 1/2-1/2 — Budapest HUN
1952 — Najdorf, Miguel vs Reshevsky, Samuel — 1/2-1/2 — Mex/NY/Salvador
8…Bd6 — 1.3% (22 parties)
1993 — Wintergerst, Johannes vs Mueller, Sascha — 1/2-1/2 — Eisenberg op-PF
2000 — Draba, Henryk vs Newton, Hobart E — 0-1 — IECG
2001 — Plecsko, Zoltan vs Kurucz, Jozsef — 1-0 — Zalakaros
2001 — Popovic, Dusan vs Walden-Jones, Andrew — 1-0 — EYCC B18 Halkidiki GRE
2001 — Meijers, Viesturs vs Kemmler, Michael — 1-0 — Baunatal GER