E72a - 5…* - Normal Variation, Deferred Fianchetto (1936)

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E72a — Normal Variation, Deferred Fianchetto (1936)
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.g3
Les coups candidats
Ambassadeurs : Petran, Peter (13x), Aigmueller, Max Ing (10x), Gawronski, Miroslaw (9x), Mulder van Leens Dijkstra, Kornelis (7x), Evans, Larry (6x), Barquette, Edson Tadeu Rodrigu (6x), Kotov, Alexander (5x), De Lange, Daan (5x)
5…c5 — 3.5% (45 parties)
Ambassadeurs : Rapaka Samuel Paul (3x), Gligoric, Sofija (2x), Gligoric, Svetozar (2x), Pomar Salamanca, Arturo (1x), Keller, Albrecht (1x), Gereben, Erno (1x), Wiedemann, Franz (1x), Schulze, Ulrich (1x)
5…Nbd7 — 2.4% (31 parties)
Ambassadeurs : Heemsoth, Hermann (2x), Benitez, Otto (1x), Etcheverry, Eduardo (1x), Zalys, Ignas (1x), Marquez Osorio Pedro Leon (1x), Winkler, Erich (1x), Quecke, Kurt (1x), Friedrich, Gerd (1x)
5…e5 — 1.4% (18 parties)
Ambassadeurs : Rodgers, Ron (1x), Avery, Peter (1x), Donner, Jan-Hein (1x), Bosch van Rosenthal, Edzard (1x), Koberl, Ferenc (1x), Szabo, Laszlo (1x), Aleman Munoz Jorge Luis (1x), Rossolimo, Nicolas (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 5…O-O 5…c5 5…Nbd7 5…e5
<1800 101 87% 2% 4% 1%
1800-2200 490 91% 3% 2% 1%
2200-2600 232 89% 7% 0% 1%
Évolution par décennie (% des parties)
Décennie N parties 5…O-O 5…c5 5…Nbd7 5…e5
1950s 117 89% 1% 3% 6%
1960s 55 85% 5% 4% 2%
1970s 73 89% 8% — —
1980s 53 94% 2% 4% —
1990s 296 90% 4% 1% 2%
2000s 352 86% 4% 4% 1%
2010s 271 93% 2% 1% 0%
2020s 54 89% 2% 2% 2%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
5…O-O 93% 89% ▼ -4.1%
5…c5 2% 2% -0.4%
5…Nbd7 1% 2% +0.4%
5…e5 0% 2% ▲ +1.5%
Parties historiques
5…O-O — 89.3% (1135 parties)
1950 — Chestnov, Vitaliy A. vs Tarasov, Igor — 0-1 — ?
1950 — Watson, Charles vs Learner, A. — 0-1 — Melbourne AUS
1950 — Carretero de Jong, Raul vs Schijf, A. — 0-1 — cr.
1950 — Martin Martinez, Pedro Jose vs De Freitas, Manuela Schmitz — 1-0 — Mar del Plata ARG
1950 — Muhring, Willem Jan vs Puc, Stojan — 1/2-1/2 — ?
5…c5 — 3.5% (45 parties)
1958 — Keller, Albrecht vs Gereben, Erno — 0-1 — Lugano SUI
1960 — Pomar Salamanca, Arturo vs Gligoric, Sofija — 1/2-1/2 — Madrid zt
1962 — Gregory Juma Mwangi vs Griffiths, Peter C — 1/2-1/2 — ?
1969 — Wiedemann, Franz vs Schulze, Ulrich — 1/2-1/2 — Hamburg GER
1970 — Rapaka Samuel Paul vs Gligoric, Svetozar — 1/2-1/2 — ?
5…Nbd7 — 2.4% (31 parties)
1951 — Heemsoth, Hermann vs Friedrich, Gerd — 1-0 — ?
1951 — Guimaraes, Sergio Murilo Soares vs Belem, Luciano — 0-1 — Fortaleza BRA
1952 — Zalys, Ignas vs Marquez Osorio Pedro Leon — 1-0 — Tampa US op
1953 — Winkler, Erich vs Quecke, Kurt — 1/2-1/2 — Jena GER
1961 — Benitez, Otto vs Etcheverry, Eduardo — 0-1 — Uruguay
5…e5 — 1.4% (18 parties)
1951 — Koberl, Ferenc vs Szabo, Laszlo — 0-1 — Budapest HUN
1952 — Donner, Jan-Hein vs Bosch van Rosenthal, Edzard — 0-1 — Enschede ch-NLD
1952 — Aleman Munoz Jorge Luis vs Rossolimo, Nicolas — 0-1 — Havana CUB
1952 — Cruz Filho, Oswaldo vs Bolbochan, Julio — 0-1 — Rio de Janeiro BRA
1952 — Gay, Antonio vs Fiore, Ignazio — 1-0 — Ferrara ITA