E05a - 6.* - Open Defense, Classical Line (1938)

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E05a — Open Defense, Classical Line (1938)
1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 dxc4 5.Nf3 Be7
Les coups candidats
Ambassadeurs : Blatny, Pavel (7x), ? (5x), Orlov, Georgi (4x), Huguet Reina, Carlos (4x), Garcia Paolicchi, Raul (3x), Hansen, Lars Bo (3x), Da Silva Filho, Alcindo Luz Bastos (3x), Zielinski, Sergej (3x)
6.Qa4+ — 23.9% (447 parties)
Ambassadeurs : Popov, Evgeny Nikolaevich (5x), Maes, Jacques (4x), Kratochvíl, Václav (4x), Provotorov, Ivan (3x), Alburt, Lev (2x), Kovacs, Arthur Dr. (2x), Lubas, Jozef (2x), Cuccumini, Vittorio (2x)
6.Qc2 — 3.3% (61 parties)
Ambassadeurs : Bertok, Mario Jr. (2x), Kovacevic, Vlatko (1x), Polugaevsky, Lev (1x), Alburt, Lev (1x), Garcia, Gildardo (1x), Ross, Paul (1x), Vaichaitis, Rimantas (1x), Stohl, Igor (1x)
6.Ne5 — 2.2% (42 parties)
Ambassadeurs : Roeber, Bjoern (3x), Hort, Vlastimil (2x), Tukmakov, Vladimir B (2x), von Nordheim, Thomas (2x), Chat, Arthur (1x), Pandix (1x), Nicolini, Osvaldo (1x), Gutierrez Barboza, Carlos Miguel (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 6.O-O 6.Qa4+ 6.Qc2 6.Ne5
<1800 121 66% 20% 4% 7%
1800-2200 741 68% 23% 4% 3%
2200-2600 749 64% 28% 3% 1%
2600+ 12 58% 25% 8% —
Évolution par décennie (% des parties)
Décennie N parties 6.O-O 6.Qa4+ 6.Qc2 6.Ne5
1950s 13 15% 77% — —
1960s 10 50% 30% 20% —
1970s 24 54% 33% — 8%
1980s 124 77% 15% 4% 2%
1990s 256 71% 20% 2% 3%
2000s 479 67% 25% 3% 2%
2010s 669 66% 26% 3% 3%
2020s 292 68% 23% 4% 2%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
6.O-O 66% 68% ▲ +2.2%
6.Qa4+ 26% 23% ▼ -3.1%
6.Qc2 3% 4% +0.3%
6.Ne5 3% 2% ▼ -0.8%
Joueurs célèbres
Champions du monde dans cette position
Anand, Viswanathan — 3 parties
Hou, Yifan — 2 parties
Parties historiques
6.O-O — 67.3% (1257 parties)
1953 — Ravinsky, Grigory vs Khasin, Abram — 0-1 — Moscow RUS
1959 — Rotstein, Jefim vs Levin, Mikhail — 1-0 — Kiev UKR
1960 — Pietzsch, Wolfgang vs Bergraser, Volf — 1/2-1/2 — Leipzig olm prel
1960 — Abad Calderon, Abraham vs Cafferty, Bernard — 1-0 — Leicester
1965 — Faleg, Alberto vs Behrensen, Jorge — 1-0 — Buenos Aires ch-ARG
6.Qa4+ — 23.9% (447 parties)
1950 — Bouwmeester, Hans vs Willaert, Robert — 1-0 — Antwerp BEL
1950 — Maderna, Carlos vs Martin M Pereira — 1-0 — Mar del Plata ARG
1951 — Anay Barche vs Abalos, Fredie — 1-0 — Marianske Lazne zt
1952 — Bolbochan, Julio vs Toth, Vince — 1/2-1/2 — Rio de Janeiro BRA
1954 — Alatortsev, Vladimir N. vs Poljak, Srebrenka — 1-0 — Riga LAT
6.Qc2 — 3.3% (61 parties)
1966 — Bertok, Mario Jr. vs Polugaevsky, Lev — 1/2-1/2 — Sochi RUS
1967 — Bertok, Mario Jr. vs Kovacevic, Vlatko — 1/2-1/2 — Kraljevo
1986 — Alburt, Lev vs Garcia, Gildardo — 1-0 — Somerset
1986 — Stohl, Igor vs Blatny, Pavel — 1/2-1/2 — Czechoslovakia
1987 — Ross, Paul vs Vaichaitis, Rimantas — 1-0 — Toronto CAN
6.Ne5 — 2.2% (42 parties)
1971 — Hort, Vlastimil vs Tukmakov, Vladimir B — 1/2-1/2 — Moscow Ale mem
1971 — Hort, Vlastimil vs Tukmakov, Vladimir B — 1/2-1/2 — Moscow RUS
1985 — Nicolini, Osvaldo vs Gutierrez Barboza, Carlos Miguel — 1-0 — ?
1988 — Chat, Arthur vs Pandix — 1/2-1/2 — MWCCC Software
1990 — Bernal Portillo, Miranda Evangeline vs Sanchez Alvarez, Francisco Javier — 1-0 — ?