D46c - 7.O-O - Bogoljubow (1909)

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D46c — Bogoljubow (1909)
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3 Be7 7.O-O
Les coups candidats
Ambassadeurs : Karakehajov, Kalin (14x), Gagloshvili, Raissa (4x), Hahner, Anton (4x), Both, Gerhard (4x), Ljubojevic, Ljubomir (4x), Fernandez, Rodrigo Amaral (3x), Rodgaard, John (3x), Vojinovic, Goran (3x)
7…dxc4 — 12.8% (315 parties)
Ambassadeurs : Gagliardi, Virgilio (4x), Prins, Lodewijk (2x), Botvinnik, Mikhail (2x), Paoli, Enrico (2x), Ekenberg, Bengt (2x), Lengyel, Levente (2x), ? (2x), Noshin, Anjum (2x)
7…b6 — 3.3% (82 parties)
Ambassadeurs : Venni, Tito (1x), Norcia, Federico (1x), Kogan, Aleksander (1x), Afonin, Aleksandr (1x), Szmetan, Jorge (1x), Piazzini, Luis (1x), Hass, Roman (1x), Dobosz, Jerzy (1x)
7…Qc7 — 2.9% (71 parties)
Ambassadeurs : Tepper, Marcel (1x), Cernik, Frantisek (1x), Colias, Billy (1x), Pesic, Relja (1x), Duriga, Stefan (1x), Popelka, Josef (1x), Clua Ballague, Miguel (1x), Shabsh, A. (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 7…O-O 7…dxc4 7…b6 7…Qc7
<1800 247 80% 9% 4% 2%
1800-2200 1190 77% 13% 3% 4%
2200-2600 574 82% 12% 5% 1%
2600+ 11 55% 27% 18% —
Évolution par décennie (% des parties)
Décennie N parties 7…O-O 7…dxc4 7…b6 7…Qc7
1950s 46 78% 15% 2% 2%
1960s 42 60% 33% 2% —
1970s 44 75% 18% 5% 2%
1980s 98 84% 10% 2% 2%
1990s 426 80% 11% 4% 2%
2000s 905 79% 12% 3% 3%
2010s 798 76% 14% 4% 3%
2020s 108 85% 8% 4% 2%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
7…O-O 76% 85% ▲ +9.1%
7…dxc4 14% 8% ▼ -5.7%
7…b6 4% 4% -0.3%
7…Qc7 3% 2% ▼ -1.4%
Joueurs célèbres
Champions du monde dans cette position
Botvinnik, Mikhail — 2 parties
Kramnik, Vladimir — 2 parties
Kasparov, Garry — 1 partie
Parties historiques
7…O-O — 78.2% (1929 parties)
1950 — Neikirkh, Oleg vs Popov, Vesselin — 1/2-1/2 — Sofia BUL
1950 — Tarasov, Vitaly vs Chistiakov, Alexander — 1/2-1/2 — Kiev UKR
1950 — Ujtelky, Maximilian vs Richter Elias Noel — 1-0 — Gotwaldov
1950 — Zielinski, Marek vs Demogue — 1-0 — cr ch FRA
1950 — Kotov, Alexander vs Paoli, Enrico — 0-1 — Venice ITA
7…dxc4 — 12.8% (315 parties)
1950 — Florian, Tibor vs Bely, Miklos — 1/2-1/2 — Budapest HUN
1950 — Aronin, Lev vs Ratner, Boris — 1-0 — URS-ch sf Gorky
1954 — Averbakh, Yuri L vs Andrade Andrade, Mathias Benjamin — 1-0 — Paris FRA
1955 — Toran Alberto Roman vs Benko, Francisco — 1-0 — Ch Club Argentino
1956 — Lombardy, William J vs Evans, Larry — 1/2-1/2 — New York, NY USA
7…b6 — 3.3% (82 parties)
1956 — Venni, Tito vs Norcia, Federico — 1-0 — Rovigo
1964 — Kogan, Aleksander vs Afonin, Aleksandr — 1-0 — USSR
1970 — Szmetan, Jorge vs Piazzini, Luis — 1/2-1/2 — Mar del Plata ARG
1978 — Rubin, Mario vs Rossetto, Hector — 0-1 — Banco de la Ciudad op
1981 — Lau, Ralf vs Zunker, Reinhard, Dr. — 1/2-1/2 — Duitsland tt
7…Qc7 — 2.9% (71 parties)
1956 — Tepper, Marcel vs Cernik, Frantisek — 1/2-1/2 — Chomutov
1978 — Clua Ballague, Miguel vs Shabsh, A. — 0-1 — Buenos Aires ARG
1988 — Colias, Billy vs Pesic, Relja — 1-0 — Chicago, IL USA
1989 — Duriga, Stefan vs Popelka, Josef — 1-0 — Bratislava SVK
1990 — Lamas, Pedro vs Bustelo, Tabare — 1-0 — Uruguay