A85h —
1.d4 f5 2.c4 Nf6 3.Nc3 e6 4.Qc2
Eval: [+0.36]
Les coups candidats
4…Bb4 — 39.7% (243 parties)
Ambassadeurs : Shumiakina, Tatiana (7x), Charochkina, Daria (6x), Zaitseva, Ludmila G. (5x), Slipak, Sergio (5x), Gleizerov, Evgeny (4x), Sirotkina, Nina (3x), Iljushin, Alexei (3x), Williams, Simon K (3x)
4…d5 — 22.5% (138 parties)
Ambassadeurs : Pres, Grigorij (3x), Zaitseva, Ludmila G. (3x), Shcherbakov, Ruslan (3x), Markovic, Gordana NN (2x), Sirotkina, Nina (2x), Ryskin, Alexander (2x), Dluski, Emil (2x), Sargissian, Gabriel (2x)
4…b6 — 17.6% (108 parties)
Ambassadeurs : Ulybin, Mikhail (8x), Gleizerov, Evgeny (6x), Sorokin, Maksim (2x), Ledger, Dave J (2x), Krasenkow, Michal (2x), Narciso Dublan, Marc (2x), Chanda, Sandipan (2x), Polugaevsky, Lev (1x)
4…Be7 — 11.6% (71 parties)
Ambassadeurs : Gleizerov, Evgeny (6x), Pachman, Ludek (2x), Gupta, Abhijeet (2x), Gavrish, Leonid (2x), Ulybin, Mikhail (2x), Corbu, George-Alexandru (2x), Gamble, Raymond J (1x), Kendall, Paul S N (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 4…Bb4 4…d5 4…b6 4…Be7
<1800 17 41% 29% 6%
1800-2200 179 34% 27% 13% 13%
2200-2600 313 46% 17% 24% 9%
2600+ 12 50% 17% 17% 17%
Évolution par décennie (% des parties)
Décennie N parties 4…Bb4 4…d5 4…b6 4…Be7
1930s 2 50%
1940s 4 50% 50%
1950s 7 57% 14% 14%
1960s 11 45% 9% 45%
1970s 9 44% 11% 33%
1980s 16 25% 38% 6% 12%
1990s 86 37% 33% 10% 10%
2000s 140 39% 22% 17% 13%
2010s 284 42% 20% 22% 9%
2020s 53 45% 13% 19% 15%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
4…Bb4 42% 45% ▲ +3.4%
4…d5 20% 13% ▼ -6.9%
4…b6 22% 19% ▼ -3.0%
4…Be7 9% 15% ▲ +6.3%
Parties historiques
4…Bb4 — 39.7% (243 parties)
1947 — Ufimtsev, Anatoly vs Rovner, Dmitry — 1-0 — Sverdlovsk
1947 — Milic, Borislav vs Kostic, Boris — 1/2-1/2 — Ljubljana SLO
1952 — Makarczyk, Kazimierz vs Gawlikowski, Stanislaw — 0-1 — Miedzyzdroje
1954 — Polugaevsky, Lev vs Antoshin, Vladimir S — 1/2-1/2 — Leningrad RUS
1956 — Lax, Hendrich vs Hofmann, Vilem — 1-0 — Bratislava SVK
4…d5 — 22.5% (138 parties)
1939 — Schwartzman, P. vs Lauberte, Milda — 1/2-1/2 — Buenos Aires ARG
1947 — Germek, Milan vs Milic, Borislav — 0-1 — Ljubljana SLO
1949 — Leonhardt, Guillaume vs Tempelmeier, Oskar — 0-1 — Buende
1960 — Mendivil Salinas, Ismael vs Franck, Alfons — 1/2-1/2 — Leipzig GER
1961 — Polugaevsky, Lev vs Estrada Degrandi, Walter — 1/2-1/2 — Rostov RUS
4…b6 — 17.6% (108 parties)
1958 — Polugaevsky, Lev vs Antoshin, Vladimir S — 1/2-1/2 — Baku AZE
1964 — Balcerowski, Witold vs Filipowicz, Adam — 1/2-1/2 — Warsaw ch-POL
1988 — Ljamin, Vladimir vs Rajkov, Nikolay — 1-0 — ?
1990 — Doroshkievich, Vladimir K vs Sorokin, Maksim — 0-1 — Kuibishev
1991 — Markov, Jurij vs Ulybin, Mikhail — 1/2-1/2 — URS-ch Club Pavlodar
4…Be7 — 11.6% (71 parties)
1950 — Antos Ambrosio, Ian David vs Blatny, Frantisek — 1-0 — Chocen
1964 — Makarczyk, Kazimierz vs Tarnowski, Alfred — 1-0 — Chelm Lubelski
1965 — Pachman, Ludek vs Smederevac, Petar — 1/2-1/2 — Beverwijk NED
1966 — Gamble, Raymond J vs Kendall, Paul S N — 1-0 — Sunderland
1966 — Pachman, Ludek vs Larsen, Benjamin Holsko — 0-1 — Havana CUB