C85f - 7.Qe1 - Closed, Exchange (1952)

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C85f — Closed, Exchange (1952)
1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Bxc6 dxc6 7.Qe1
Les coups candidats
Ambassadeurs : Shabalov, Alexander (11x), Lanc, Alois (10x), Sturc, Gustav (9x), Hecht, Hans-Joachim (8x), Blatny, Pavel (8x), Durão, Joaquim Manuel (5x), Soltis, Andrew (4x), Pribyl, Josef (4x)
7…Be6 — 15.7% (194 parties)
Ambassadeurs : Schmid, Lothar (5x), Pfleger, Helmut, Dr. (4x), Fichtl, Jiri (4x), Hecht, Hans-Joachim (4x), Schmid, Leo (3x), Diez del Corral, Jesus (3x), Koenig, Adrien (3x), Leluashvili, Omar Shalvovich (3x)
Ambassadeurs : Smejkal, Jan (6x), Lechtynsky, Jiri (5x), Novak, Ervin (4x), Sychov, Aleksandr Vitalievi (4x), Kozma, Julius (3x), Pribyl, Josef (3x), Shabalov, Alexander (3x), Aleksandrov, Viktor A. (3x)
7…Bd6 — 5.3% (65 parties)
Ambassadeurs : Dinato, Eduardo Iglesias (2x), Durao, Joaquim (2x), Rittner, Horst (1x), Tritzschler, Helmut (1x), Sanchez, Luis Augusto (1x), Mostafavi, Mohammadreza (1x), O'Riordan, Kenneth (1x), Corby, J C (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 7…Nd7 7…Be6 7…c5 7…Bd6
<1800 25 32% 16% 8% 16%
1800-2200 329 56% 11% 11% 9%
2200-2600 530 65% 12% 15% 2%
2600+ 12 83% — 17% —
Évolution par décennie (% des parties)
Décennie N parties 7…Nd7 7…Be6 7…c5 7…Bd6
1950s 73 45% 26% 19% 4%
1960s 129 42% 33% 20% 2%
1970s 91 54% 15% 18% 8%
1980s 57 61% 11% 19% 4%
1990s 385 60% 15% 14% 5%
2000s 275 62% 10% 9% 7%
2010s 190 57% 12% 12% 6%
2020s 35 60% 14% 11% 6%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
7…Nd7 57% 60% ▲ +3.2%
7…Be6 12% 14% ▲ +2.2%
7…c5 12% 11% -0.2%
7…Bd6 6% 6% -0.1%
Joueurs célèbres
Champions du monde dans cette position
Kramnik, Vladimir — 2 parties
Anand, Viswanathan — 1 partie
Parties historiques
7…Nd7 — 56.9% (703 parties)
1952 — Witkowski, Stefan vs Blaszczak, Czeslaw — 1/2-1/2 — Katowice POL
1952 — Schmid, Lothar vs Johnsen, Larus — 1-0 — Helsinki olm
1952 — Kozma, Julius vs Kucera, Jan — 0-1 — Tatranska ch CZE
1953 — Beni, Alfred vs Donner, Jan-Hein — 1-0 — Opatija
1954 — Toran Albero, Roman vs Dunkelblum, Arthur — 1-0 — Munich GER
7…Be6 — 15.7% (194 parties)
1951 — Nezhmetdinov, Rashid vs Levenfish, Grigory — 1/2-1/2 — Baku ch sf
1952 — Troianescu, Octav vs Keres, Paul — 0-1 — Budapest HUN
1954 — Schmid, Leo vs Donner, Jan-Hein — 1-0 — GER
1954 — Schmid, Lothar vs Kluger, Gyula — 1/2-1/2 — Amsterdam olm
1955 — Schmid, Lothar vs Friedl, Fritz — 1-0 — Nuerenberg GER
7…c5 — 13.7% (169 parties)
1951 — Klaman, Konstantin Mikhailovich vs Abramovich Furman, Semyon — 1/2-1/2 — Baku AZE
1951 — Ravinsky, Grigory vs Konstantinov, Alexandr — 1/2-1/2 — URS-ch sf Sverdlovsk
1953 — Nezhmetdinov, Rashid vs Krogius, Nikolai V — 1-0 — USSR
1954 — Aleksandrovich, Fedir vs Guskov, Yuri Petrovich — 1-0 — Riga LAT
1954 — Witkowski, Stefan vs Tarnowski, Alfred — 1-0 — POL-ch Lodz POL
7…Bd6 — 5.3% (65 parties)
1955 — Rittner, Horst vs Tritzschler, Helmut — 1-0 — Zittau B
1955 — O'Riordan, Kenneth vs Corby, J C — 1-0 — Cork
1956 — Sanchez, Luis Augusto vs Mostafavi, Mohammadreza — 0-1 — Moscow RUS
1963 — Smejkal, Jan vs Weiss, Augustin — 1/2-1/2 — Telnice/Usti
1966 — Marchetti, Francisco vs Lopez, Luis Clemente — 1/2-1/2 — Cordoba ARG