E70f - 4…d6 5.Nge2 - Kramer Variation (1925)

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E70f — Kramer Variation (1925)
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nge2
Les coups candidats
Ambassadeurs : Kaposztas, Miklos (71x), Jakab, Attila (53x), Forintos, Gyozo V (45x), Hurme, Harri (29x), Allawi Rawlings (24x), Remlinger, Larry (23x), Serper, Grigory (22x), Shemeakin, Alexander (20x)
5…Nbd7 — 5.0% (299 parties)
Ambassadeurs : Tregubov, Pavel V. (4x), Remlinger, Larry (3x), Ivanov, Mikhail M. (3x), Cai, Jeffery (2x), Rohde, Michael (2x), Troyke, Doreen (2x), Kaposztas, Miklos (2x), Serper, Grigory (2x)
5…c6 — 3.7% (218 parties)
Ambassadeurs : Forintos, Gyozo V (6x), Remlinger, Larry (5x), Byrne, Robert E (4x), Wahls, Matthias (3x), Van Wely, Loek (3x), Kaposztas, Miklos (3x), Andersen, Rune (3x), Szabo, Laszlo (2x)
5…a6 — 2.9% (175 parties)
Ambassadeurs : Williams, Simon K (5x), Hort, Vlastimil (4x), Hug, Werner (3x), Kaposztas, Miklos (3x), Novikov, Igor (2x), Korchnoi, Viktor (2x), Narciso Dublan, Marc (2x), Gallagher, Joseph G. (2x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 5…O-O 5…Nbd7 5…c6 5…a6
<1800 303 85% 6% 2% 2%
1800-2200 2379 85% 5% 3% 2%
2200-2600 2471 80% 5% 4% 4%
2600+ 60 75% 12% 3% 8%
Évolution par décennie (% des parties)
Décennie N parties 5…O-O 5…Nbd7 5…c6 5…a6
1950s 43 77% 7% 2% —
1960s 131 81% 2% 5% 1%
1970s 77 82% 1% 3% —
1980s 289 82% 6% 4% 1%
1990s 1369 80% 4% 7% 2%
2000s 1615 82% 4% 3% 5%
2010s 1843 85% 6% 2% 3%
2020s 603 86% 6% 2% 2%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
5…O-O 85% 86% ▲ +1.0%
5…Nbd7 6% 6% +0.1%
5…c6 2% 2% +0.3%
5…a6 3% 2% ▼ -0.5%
Joueurs célèbres
Champions du monde dans cette position
Ju, Wenjun — 4 parties
Ding, Liren — 2 parties
Kasparov, Garry — 1 partie
Kramnik, Vladimir — 1 partie
Anand, Viswanathan — 1 partie
Carlsen, Magnus — 1 partie
Parties historiques
5…O-O — 82.6% (4933 parties)
1950 — Stahlberg, Gideon vs Pilnik, Herman — 1-0 — Amsterdam NED
1950 — Steiner, Heinrich Jun. vs Pedersen, Ebbe — 0-1 — Dubrovnik olm
1951 — Kellner, John Vincent vs Crowl, Frank Arthur — 1-0 — Melbourne AUS
1951 — Bogoljubow, Efim vs Rossolimo, Nicolas — 0-1 — Birmingham ENG
1951 — Kramer, George vs Miguel, Nahuel — 1/2-1/2 — New York, NY USA
5…Nbd7 — 5.0% (299 parties)
1950 — Zalys, Ignas vs Williams, J.Noel — 1-0 — Montreal CAN
1956 — Heidenfeld, Wolfgang vs Tylor, Theodore Henry — 0-1 — Paignton ENG
1959 — Hanks, John vs Wotulo, Max — 0-1 — Sydney AUS
1967 — Macskasy, Elod vs Harper, Bruce — 1-0 — Vancouver
1967 — Talos, Janos vs Szabo, Laszlo — 1-0 — cr ch HUN
5…c6 — 3.7% (218 parties)
1957 — Grumette, Lina vs Kraff, Mona M — 1-0 — Los Angeles, CA USA
1966 — Kalotay, Andrew vs Byrne, Robert E — 0-1 — Seattle, WA USA
1966 — Szabo, Laszlo vs Byrne, Robert E — 1/2-1/2 — Havana olm
1966 — Szabo, Laszlo vs Byrne, Robert E — 1/2-1/2 — Havana olm
1967 — Forintos, Gyozo V vs Rakic, Tomislav — 1-0 — Liberation Belgrade YUG
5…a6 — 2.9% (175 parties)
1969 — Adorjan, Andras vs Sigurjonsson, Bjorn — 1-0 — Groningen NED
1984 — Hort, Vlastimil vs Zueger, Beat — 1-0 — Biel SUI
1985 — Schneiders, Ab vs Hug, Werner — 0-1 — San Bernardino op
1985 — Pyrich, George vs Findlay, David John — 1/2-1/2 — St Andrews
1986 — Hort, Vlastimil vs Nemet, Ivan — 1-0 — Switzerland