B56b - 5…e5 - Open (1946)

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B56b — Open (1946)
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5
Les coups candidats
Ambassadeurs : Pandavos, Panayotis (13x), Nikolaou, Georgios (9x), Haluschka, Rainer (9x), Dantas, Artur F C Pinto (9x), Mamatov, Melis (9x), Bator, Robert (8x), Ostermeyer, Peter, Dr. (8x), Vernay, Clovis (8x)
6.Nb3 — 26.3% (653 parties)
Ambassadeurs : Martin Del Campo Cardenas, Roberto Abel (7x), Svatos, Jan (4x), Braskin, Ivica (3x), Ornithopoulos, Nikolaos (3x), Dobosz, Henryk (3x), Riek, Wolfgang (3x), Erice Alonso, Santiago (3x), Yankelevich, Lev (3x)
6.Nf3 — 13.5% (335 parties)
Ambassadeurs : Dobosz, Henryk (4x), Vesely, Tomas (3x), Pandavos, Panayotis (3x), Panesso Rivera, Henry (3x), Barry Dickson (2x), Braskin, Ivica (2x), Podlesnik, Bogdan (2x), Fleischer, Julia (2x)
6.Ndb5 — 9.4% (235 parties)
Ambassadeurs : Dobosz, Henryk (5x), Kwatschewsky, Leo (4x), Homola, Jiri (3x), Wall, Alejandro (2x), Barsalou, Norm (2x), Sedlacek, Petr (2x), Matzies, Alexander (2x), Rumyantsev, Vladimir (2x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 6.Bb5+ 6.Nb3 6.Nf3 6.Ndb5
<1800 291 34% 33% 17% 13%
1800-2200 986 45% 31% 10% 11%
2200-2600 577 66% 16% 11% 3%
2600+ 11 82% 9% 9% —
Évolution par décennie (% des parties)
Décennie N parties 6.Bb5+ 6.Nb3 6.Nf3 6.Ndb5
1950s 46 48% 17% 9% 4%
1960s 41 61% 22% 10% 2%
1970s 29 38% 38% 7% 3%
1980s 156 59% 15% 18% 4%
1990s 380 41% 25% 20% 12%
2000s 721 43% 29% 13% 12%
2010s 831 47% 28% 12% 9%
2020s 283 60% 21% 10% 5%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
6.Bb5+ 47% 60% ▲ +12.7%
6.Nb3 28% 21% ▼ -7.2%
6.Nf3 12% 10% ▼ -1.4%
6.Ndb5 9% 5% ▼ -4.2%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 2 parties
Kasparov, Garry — 1 partie
Parties historiques
6.Bb5+ — 47.6% (1184 parties)
1950 — Ullrich, Bruno vs Herrmann, Ludwig — 0-1 — Soemmerda GER
1950 — Michel, Clement Paul vs Rossetto, Hector — 1/2-1/2 — Mar del Plata ARG
1952 — Ravinsky, Grigory vs Cherepkov, Alexander V — 1/2-1/2 — Riga LAT
1952 — Byvshev, Vasily vs Kots, Yuri I — 1-0 — Leningrad RUS
1952 — Grynfeld, Izaak vs Milev, Zdravko — 1/2-1/2 — Miedzyzdroje
6.Nb3 — 26.3% (653 parties)
1951 — Williams, J.Noel vs Zalys, Ignas — 1-0 — Montreal CAN
1953 — Szily, Jozsef vs Dely, Peter — 0-1 — HUN-ch Budapest HUN
1954 — Czerniak, Moshe vs Petek, Anamarija — 0-1 — Zagreb CRO
1956 — Pedersen, Eigil vs Conrad, Norman — 1-0 — Copenhagen DEN
1957 — Johner, Hans vs Leinweber, Thaddaeus — 1/2-1/2 — Bern SUI
6.Nf3 — 13.5% (335 parties)
1952 — Kucera, Jan vs Al Husari, Zita Fatima — 1/2-1/2 — Tatranska ch CZE
1957 — Engel, Jindrich vs Zalys, Ignas — 0-1 — Montreal CAN
1958 — Bekavac, V. vs Bradvarevic, Aleksandar — 0-1 — Tuzla
1959 — Rubtsova, Olga vs Lazarevic, Milunka — 1-0 — Plovdiv BUL
1962 — Sakharov, Yuri N vs Levitsky, SV. — 1/2-1/2 — Kiev UKR
6.Ndb5 — 9.4% (235 parties)
1952 — Tal, Mikhail vs Zilber, Israel — 0-1 — USSR
1952 — Fuderer, Andrija vs Auer, Franz — 1/2-1/2 — Helsinki olm
1963 — Blackstone, John vs Dorsch, Thomas — 0-1 — No. CA
1978 — Wall, Alejandro vs Watt, Billy — 1-0 — Taylorsville,NC
1980 — Moody, David W vs Smith, Walter — 1-0 — Dearborn, Mich.