D47h - 7.Bxc4 b5 8.Bd3 - Meran (1969)

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D47h — Meran (1969)
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bd3
Les coups candidats
Ambassadeurs : Weber, Karlheinz (81x), Pravec, Ladislav (66x), Dreev, Aleksey (65x), Gelfand, Boris (48x), De Waele, Willy (36x), Shirov, Alexei (30x), Kaidanov, Gregory (28x), Pinter, Jozsef (28x)
Ambassadeurs : Korneev, Oleg (29x), Vera Gonzalez-Quevedo, Reynaldo (20x), Ciric, Dragoljub M (19x), Trifunovic, Petar (18x), Jovcic, Milan (17x), Torre, Eugenio (15x), Van der Wiel, John T.H. (15x), Donaldson, John (15x)
Ambassadeurs : Grachev, Boris (27x), Kharitonov, Alexandr (10x), Korneva, Marina (10x), Zvjaginsev, Vadim (9x), Kozul, Zdenko (9x), Aronian, Levon (8x), Moiseenko, Alexander (8x), Delchev, Aleksander (8x)
Ambassadeurs : Sveshnikov, Evgeny (43x), Dreev, Aleksey (10x), Baquet, Roland (8x), Kostro, Jerzy (7x), Antunes, Antonio (7x), Paoli, Enrico (6x), Hamann, Svend (6x), Vaganian, Rafael A (6x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 8…Bb7 8…a6 8…Bd6 8…b4
<1800 1359 49% 38% 9% 3%
1800-2200 8966 50% 37% 8% 5%
2200-2600 9235 49% 34% 11% 6%
2600+ 740 50% 20% 19% 11%
Évolution par décennie (% des parties)
Décennie N parties 8…Bb7 8…a6 8…Bd6 8…b4
1950s 259 24% 64% — 12%
1960s 280 22% 56% — 21%
1970s 444 41% 33% — 26%
1980s 1019 35% 59% 0% 5%
1990s 3115 45% 47% 1% 6%
2000s 8060 49% 36% 9% 6%
2010s 8646 53% 31% 12% 3%
2020s 1703 54% 22% 17% 7%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
8…Bb7 53% 54% +0.4%
8…a6 31% 22% ▼ -8.6%
8…Bd6 12% 17% ▲ +4.9%
8…b4 3% 7% ▲ +3.6%
Joueurs célèbres
Champions du monde dans cette position
Botvinnik, Mikhail — 10 parties
Karpov, Anatoly — 10 parties
Anand, Viswanathan — 10 parties
Kramnik, Vladimir — 10 parties
Carlsen, Magnus — 10 parties
Tal, Mikhail — 9 parties
Kasparov, Garry — 9 parties
Ding, Liren — 7 parties
Gukesh D — 3 parties
Ju, Wenjun — 2 parties
Hou, Yifan — 1 partie
Parties historiques
8…Bb7 — 49.0% (11524 parties)
1950 — Castillo Bermudez, Manuel vs Wade, Robert G — 0-1 — Venice ITA
1950 — Mueller, Helge vs Wade, Robert G — 1/2-1/2 — Venice ITA
1950 — Kottnauer, Cenek vs Donner, Jan-Hein — 0-1 — Amsterdam NED
1951 — Poulsen, Christian vs Pedersen, Eigil — 1/2-1/2 — Aarhus DEN
1951 — Maderna, Carlos vs Bolbochan, Julio — 1/2-1/2 — Mar del Plata ARG
8…a6 — 36.1% (8490 parties)
1950 — Puc, Stojan vs Nilsson, Zandor — 1-0 — YUG-Sweden
1950 — Roehrich, E vs Schmid, Lothar — 1-0 — FRG-ch01 corr5052
1950 — Viaud, Adolphe vs ADAM ELAMAIREH — 1/2-1/2 — corr Wch1
1950 — Vajda, Arpad vs Szily, Jozsef — 1/2-1/2 — Budapest HUN
1950 — Kipovski vs Spassky, Boris V. — 0-1 — Leningrad RUS
8…Bd6 — 8.9% (2091 parties)
1988 — Ihlenfeld, Felix vs Beisser, Andre — 0-1 — corr GER
1990 — Solozhenkin, Evgeniy vs Zvjaginsev, Vadim — 1/2-1/2 — Ashkhabad
1991 — Chekaev, Alexander vs Zvjaginsev, Vadim — 0-1 — Alma Ata KAZ
1993 — Chekhova-Kostina, Tatiana M vs Zvjaginsev, Vadim — 1/2-1/2 — Cappelle la Grande FRA
1994 — Lotz, Kolja vs Sohn, H. — 1/2-1/2 — Wallertheim op-RH
8…b4 — 5.5% (1305 parties)
1950 — Taimanov, Mark vs Foltys, Jan — 1/2-1/2 — Schiavno Zdroj
1950 — Nielsen, H. J. vs Lindquist, Sture — 0-1 — Dubrovnik olm
1950 — Zagoriansky, Evgeny vs Averbakh, Yuri L — 1/2-1/2 — Moscow RUS
1950 — Arlamowski, Edward vs Foltys, Jan — 1/2-1/2 — Schiavno Zdroj
1950 — Nielsen, Hartvig vs Bergqvist, Allan — 1/2-1/2 — Dubrovnik CRO