D47b - 7.Bxc4 b5 8.Bb3 - Meran, Freymann Variation (1927)

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D47b — Meran, Freymann Variation (1927)
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bb3
Les coups candidats
Ambassadeurs : Dorfman, Iossif (4x), Yudovich, Mikhail M (3x), Ciric, Dragoljub M (3x), Korchnoi, Viktor (3x), Larsen, Bent Ravn (3x), Tanti, Joseph G (3x), Gligoric, Sofija (2x), Tal, Mikhail (2x)
8…Bb7 — 29.4% (289 parties)
Ambassadeurs : Ignacz, Maria (3x), Razuvaev, Yuri S (2x), Vaganian, Irina (2x), Stempin, Pawel (2x), Grooten, Herman (2x), Sebrek, Janos (2x), Le, Kieu Thien Kim (2x), Flear, Christine (2x)
8…a6 — 16.6% (163 parties)
Ambassadeurs : Pomar Salamanca, Arturo (2x), Tejkal, Jiri (2x), Yepez, Olavo (1x), Philippe, Georges (1x), Bronstein, Luis Marcos (1x), Garcia, Horacio Pedro (1x), Vinser (1x), Winser, William Arthur (1x)
8…Be7 — 4.2% (41 parties)
Ambassadeurs : Kotov, Alexander (2x), Geller, Efim P. (1x), Winiwarter, Felix (1x), Sakharov, Yuri N (1x), Brandts Paul (1x), Shainswit, George (1x), Pfeiffer, Gerhard (1x), Tatai, Stefano (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 8…b4 8…Bb7 8…a6 8…Be7
<1800 73 45% 36% 16% 3%
1800-2200 403 39% 34% 20% 3%
2200-2600 342 51% 29% 12% 5%
2600+ 16 75% 12% — 6%
Évolution par décennie (% des parties)
Décennie N parties 8…b4 8…Bb7 8…a6 8…Be7
1950s 25 60% 20% 8% 12%
1960s 29 72% 10% 14% 3%
1970s 31 71% 16% 13% —
1980s 71 68% 15% 11% 6%
1990s 170 46% 28% 19% 6%
2000s 275 45% 31% 17% 3%
2010s 291 41% 32% 18% 3%
2020s 92 38% 41% 14% 4%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
8…b4 41% 38% ▼ -2.8%
8…Bb7 32% 41% ▲ +9.0%
8…a6 18% 14% ▼ -4.1%
8…Be7 3% 4% ▲ +0.9%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 2 parties
Anand, Viswanathan — 2 parties
Kramnik, Vladimir — 1 partie
Parties historiques
8…b4 — 47.0% (462 parties)
1952 — Gligoric, Sofija vs Book, Eero — 1/2-1/2 — Helsinki olm
1952 — Alexander Tadala vs Simagin, Vladimir — 0-1 — Moskou ch-URS
1954 — Baev, Pavel vs Evans, Larry — 0-1 — New York ch-USA
1954 — Shahzade vs Alexander G — 1-0 — USSR
1955 — Adia Brown vs Zerkowitz, George — 0-1 — Vancouver
8…Bb7 — 29.4% (289 parties)
1950 — Mengarini, Ariel vs Miller, George — 1-0 — Detroit US op
1951 — Bertok, Mario Jr. vs Rabar, Braslav — 1/2-1/2 — Ljubljana
1951 — Ania Nahid Rosales Espinoza vs Ader Hausman, Walter — 1-0 — Santiago de Chile
1952 — Geller, Efim P. vs Pilnik, Herman — 1-0 — Budapest HUN
1959 — Lehmann, Heinz vs Pfeiffer, Gerhard — 1/2-1/2 — FRG-ch Nuerenberg GER
8…a6 — 16.6% (163 parties)
1952 — Balcarek, Wiktor vs Litmanowicz, Wladyslaw — 1/2-1/2 — Katowice POL
1959 — Winser, William Arthur vs Pomar Salamanca, Arturo — 0-1 — Hastings ENG
1960 — Vinser vs Pomar Salamanca, Arturo — 0-1 — ?
1962 — Barden, Leonard vs Calero, Andres — 1/2-1/2 — Varna BUL
1966 — Yepez, Olavo vs Philippe, Georges — 1-0 — Havana CUB
8…Be7 — 4.2% (41 parties)
1956 — Brandts Paul vs Shainswit, George — 1/2-1/2 — New York, NY USA
1957 — Geller, Efim P. vs Winiwarter, Felix — 1-0 — Szczawno Zdroj
1957 — Kotov, Alexander vs Sakharov, Yuri N — 1-0 — Kiev UKR
1960 — Kotov, Alexander vs Pfeiffer, Gerhard — 1/2-1/2 — Hamburg WGER-USSR
1984 — Tatai, Stefano vs Pinter, Jozsef — 0-1 — Rumania