B71c - 6…Nc6 - Dragon, Levenfish (1947)

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B71c — Dragon, Levenfish (1947)
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.f4 Nc6
Les coups candidats
7.Nxc6 — 50.2% (1263 parties)
Ambassadeurs : Grazinys, Vidmantas (8x), Flaisigova, Petra (6x), Harju, Antero (6x), L'Ami, Erwin (5x), Ong, Allan (5x), Yanofsky, Daniel Abraham (4x), Rapaka Samuel Paul (4x), Bogdanovich, Stanislav (4x)
Ambassadeurs : Hector, Jonny (11x), Mrva, Martin (8x), Gutierrez Herrera, Jose Antonio (4x), Gutmakher, Olga (4x), Petrov, Marian (4x), Mikulas, Dusan (4x), Corte, Cesar J (3x), Kolar, Srecko (3x)
7.Be2 — 13.3% (335 parties)
Ambassadeurs : Gayson, Peter M (12x), Kupreichik, Viktor D (9x), Grosar, Aljosa (3x), Durão, Joaquim Manuel (2x), Mengarini, Ariel (2x), Rellstab, Ludwig (2x), Inkiov, Ventzislav (2x), Popovic, Petar (2x)
Ambassadeurs : Walther, Edgar (4x), Weissleder, Wolfgang M Dr (3x), Schmid, Lothar (2x), Klavins, Janis (2x), Czerniak, Moshe (2x), Selick, Paul (2x), Nefzer, Werner (2x), Tarleva, Vira (2x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 7.Nxc6 7.Nf3 7.Be2 7.Bb5
<1800 161 48% 11% 9% 15%
1800-2200 1004 51% 15% 14% 8%
2200-2600 688 44% 27% 15% 4%
2600+ 6 17% 33% — —
Évolution par décennie (% des parties)
Décennie N parties 7.Nxc6 7.Nf3 7.Be2 7.Bb5
1950s 111 58% 9% 14% 12%
1960s 90 50% 2% 10% 29%
1970s 141 60% 8% 10% 12%
1980s 196 54% 14% 16% 8%
1990s 602 51% 15% 14% 8%
2000s 703 51% 17% 12% 9%
2010s 569 47% 18% 14% 7%
2020s 105 29% 23% 19% 9%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
7.Nxc6 47% 29% ▼ -18.7%
7.Nf3 18% 23% ▲ +4.6%
7.Be2 14% 19% ▲ +5.3%
7.Bb5 7% 9% ▲ +1.4%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 4 parties
Anand, Viswanathan — 2 parties
Kasparov, Garry — 1 partie
Hou, Yifan — 1 partie
Parties historiques
7.Nxc6 — 50.2% (1263 parties)
1950 — Cotton, Donald R vs Spiller, Arthur R — 0-1 — Los Angeles, CA USA
1951 — Estrada, Walter vs Toran Albero, Roman — 0-1 — San Rafael
1951 — Majstorovic, Ljubomir vs Vidmar, Milan Jr — 1/2-1/2 — Ljubljana
1951 — Barker, Albert vs Nyren, Bo — 1-0 — Birmingham/Coventry
1952 — Wallace, Charles vs Spinner, Louis — 1-0 — Los Angeles, CA USA
7.Nf3 — 15.5% (391 parties)
1952 — Bronstein, David I vs Partyka, Kazimierz — 1-0 — Helsinki olm
1952 — Corte, Cesar J vs Panno, Oscar — 1-0 — Buenos Aires ARG
1954 — Nestler, Vincenzo vs Staldi, Cherubino — 0-1 — ITA-ch17 Trieste
1955 — Corte, Cesar J vs Acoltzi Ruiz, Mariana — 0-1 — Buenos Aires ARG
1955 — Kan, Ilya A vs Averbakh, Yuri L — 0-1 — Moscow RUS
7.Be2 — 13.3% (335 parties)
1950 — Rellstab, Ludwig vs Siegel, Paul — 1-0 — Bad Pyrmont GER
1950 — Rellstab, Ludwig vs Morcken, Otto B — 1/2-1/2 — Dubrovnik olm
1951 — Mengarini, Ariel vs Rapaka Samuel Paul — 1-0 — New York ch-USA
1951 — Mengarini, Ariel vs Rashevsky, Mykhailo — 1-0 — New York, NY USA
1951 — Seidman, Herbert vs Horowitz, Albert Israel — 1-0 — New York ch-USA
7.Bb5 — 9.1% (230 parties)
1951 — Nezhmetdinov, Rashid vs Ilivitsky, Georgy A — 1/2-1/2 — RUS-ch Yaroslavl
1951 — Schmid, Lothar vs Gilg, Karl — 1-0 — FRG-ch Duesseldorf GER
1952 — Czerniak, Moshe vs Bosch van Rosenthal, Edzard — 0-1 — Helsinki FIN
1952 — Rivise, Irving vs Spiller, Arthur R — 0-1 — Hollywood, CA
1952 — Chaplinsky, Edgar vs Alexander Tadala — 1/2-1/2 — Riga LAT