A53o - 4.d5 - Ukrainian (1946)

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A53o — Ukrainian (1946)
1.d4 Nf6 2.c4 d6 3.Nc3 e5 4.d5
Les coups candidats
Ambassadeurs : Salov, Sergej (5x), Malin, Odd Gunnar (4x), Udovcic, Mijo (3x), Wade, Robert G (3x), Balcerowski, Witold (3x), Johnsen Tore Lyder (3x), Schweier, Lorenz (3x), Jones, Iolo C (3x)
4…g6 — 19.7% (261 parties)
Ambassadeurs : Metras, Dominique (2x), Mertens, Paul (2x), Primavera, Giuseppe (2x), Auer, Franz (2x), Averbakh, Yuri L (2x), Alves, Francisco H B Severino (2x), Trois, Francisco R.T. (2x), Gadzikasumov, V (1x)
4…Bf5 — 19.2% (255 parties)
Ambassadeurs : Vyzantiadis, Lazaros (3x), Herzog, Klaus (3x), Ulybin, Mikhail (3x), Magrin, Antonio (2x), Niemela, Ilmari Aarne (2x), Quinones Carrillo, Oscar (2x), Bobotsov, Milko G (2x), Vyzmanavin, Alexey (2x)
4…Nbd7 — 13.6% (180 parties)
Ambassadeurs : Jovanovic, Zoran (4x), Kestler, Hans-Guenther (3x), Schwalen, Peter (3x), Kovalevskaya, Ekaterina (3x), Langeweg, Kick (2x), Peev, Peicho (2x), Treppner, Gerd (2x), Ambartsumova, Karina (2x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 4…Be7 4…g6 4…Bf5 4…Nbd7
<1800 69 29% 20% 19% 14%
1800-2200 566 35% 19% 20% 14%
2200-2600 439 34% 19% 19% 16%
2600+ 6 — — 67% 17%
Évolution par décennie (% des parties)
Décennie N parties 4…Be7 4…g6 4…Bf5 4…Nbd7
1950s 43 40% 35% 16% 2%
1960s 74 45% 20% 16% 9%
1970s 36 25% 25% 31% 17%
1980s 55 44% 16% 16% 11%
1990s 229 36% 21% 18% 15%
2000s 319 37% 19% 20% 10%
2010s 398 34% 19% 17% 19%
2020s 172 28% 16% 25% 12%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
4…Be7 34% 28% ▼ -5.8%
4…g6 19% 16% ▼ -3.1%
4…Bf5 17% 25% ▲ +8.4%
4…Nbd7 19% 12% ▼ -7.2%
Joueurs célèbres
Champions du monde dans cette position
Botvinnik, Mikhail — 1 partie
Karpov, Anatoly — 1 partie
Parties historiques
4…Be7 — 35.1% (466 parties)
1950 — Golombek, Harry vs Wade, Robert G — 1/2-1/2 — Venice ITA
1950 — Moiseev, Viktor vs Petrosian, Tigran V. — 1/2-1/2 — Moscow-ch Moscow RUS
1951 — Golombek, Harry vs Wade, Robert G — 1/2-1/2 — Birmingham ENG
1952 — Mueller, Klaus vs Krause, Kurt — 0-1 — Binz GER
1952 — Bobotsov, Milko G vs Bobekov, Radko — 1/2-1/2 — Sofia BUL
4…g6 — 19.7% (261 parties)
1951 — Averbakh, Yuri L vs Bondarevsky, Igor — 1-0 — Moskou ch-URS
1952 — Primavera, Giuseppe vs Auer, Franz — 1-0 — Helsinki olm
1952 — Aadhitha Karikalan vs Janosevic, Dragoljub — 1-0 — Belgrade SRB
1952 — Ortega, Rogelio vs Grynfeld, Izaak — 0-1 — Helsinki olm
1952 — Primavera, Giuseppe vs Auer, Franz — 0-1 — Italy
4…Bf5 — 19.2% (255 parties)
1950 — Niemela, Ilmari Aarne vs Kupferstich, Moises — 0-1 — Dubrovnik olm
1950 — Niemela, Ilmari Aarne vs Trifunovic, Petar — 0-1 — Dubrovnik olm
1951 — Botvinnik, Mikhail vs Kotov, Alexander — 1/2-1/2 — Moskou ch-URS
1952 — Stuart, E Leslie vs Phillips, Alan — 1-0 — Chester ch-BCF
1953 — Mueller, Klaus vs Kolarov, Atanas Stefanov — 1/2-1/2 — Sofia BUL
4…Nbd7 — 13.6% (180 parties)
1954 — Polugaevsky, Lev vs Lutikov, Anatoly S — 0-1 — URS-ch sf Rostov on Don
1960 — Sattoraliyev, Salohiddin vs Theodorovich, I. — 1-0 — Western Open
1963 — Averbakh, Yuri L vs Langeweg, Kick — 1-0 — Beverwijk NED
1963 — Forintos, Gyozo V vs Langeweg, Kick — 1-0 — Torneo di Capodanno
1965 — Buniatian vs Hilde Peterson — 0-1 — USSR