D20o — QGA:
1.d4 d5 2.c4 dxc4 3.e4 Nf6
Eval: [+0.34]
Les coups candidats
Ambassadeurs : Alekseenko, Kirill (19x), Karpov, Anatoly (17x), Kharlov, Andrei (16x), Van Wely, Loek (16x), Dreev, Aleksey (15x), Nikolic, Predrag (15x), Greenfeld, Alon (15x), Belenkaya, Dina (15x)
Ambassadeurs : Jonkman, Harmen (5x), Lahlum, Hans Olav (5x), Arkell, Keith C (4x), Grivas, Efstratios (3x), Skembris, Spyridon (3x), Fedder, Steen (3x), Garcia Palermo, Carlos Horacio (3x), Wahjuwidajat, Utut Adianto (3x)
4.f3 — 0.5% (15 parties)
Ambassadeurs : McCracken, David (1x), Chris Gardner (1x), Jakab, Andras (1x), Spielmann, Alain (1x), Bratchenko, Alexander (1x), Yagupov, Igor (1x), Glud, Jakob Vang (1x), Fossum, Oystein Boyum (1x)
4.Bxc4 — 0.1% (3 parties)
Ambassadeurs : Brauner Simon (1x), Huschebeck, Antonia (1x), Berdhold, Sarah (1x), Langen Yvonne (1x), Afanasyev, Viktor Alekseevich (1x), Chirkov, Vasily Veniaminovic (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 4.e5 4.Nc3 4.f3 4.Bxc4
<1800 98 52% 47% 1%
1800-2200 633 71% 28% 1%
2200-2600 1779 91% 9% 0%
2600+ 263 98% 2%
Évolution par décennie (% des parties)
Décennie N parties 4.e5 4.Nc3 4.f3 4.Bxc4
1900s 1 100%
1950s 1 100%
1960s 5 60% 40%
1970s 11 64% 36%
1980s 151 73% 27%
1990s 609 75% 24% 0% 0%
2000s 931 72% 27% 1%
2010s 1228 85% 15% 0% 0%
2020s 381 87% 12% 1%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
4.e5 85% 87% ▲ +2.9%
4.Nc3 15% 12% ▼ -2.9%
4.f3 0% 1% +0.1%
4.Bxc4 0% 0% -0.1%
Joueurs célèbres
Champions du monde dans cette position
Anand, Viswanathan — 10 parties
Karpov, Anatoly — 10 parties
Karpov, Aleksandr — 6 parties
Ding, Liren — 5 parties
Kramnik, Vladimir — 3 parties
Kasparov, Garry — 2 parties
Ju, Wenjun — 2 parties
Botvinnik, Mikhail — 1 partie
Carlsen, Magnus — 1 partie
Parties historiques
4.e5 — 79.0% (2620 parties)
1960 — Mititelu, Gheorghe vs Clarke, Peter H — 1/2-1/2 — Budapest HUN
1961 — Gheorghiu, Florin vs Pfleger, Helmut, Dr. — 1/2-1/2 — The Hague NED
1967 — Korchnoi, Viktor vs Suetin, Alexey S — 1-0 — Budva MNE
1973 — Avner, Uri vs Rosenberg, Arie — 0-1 — Netanya ISR
1974 — Wall, Bill vs Barton, Steve — 1/2-1/2 — ?
4.Nc3 — 20.4% (677 parties)
1909 — Thoresen, Vald vs Kjaer Larsen, Maximillian C — 1-0 — Randers DEN
1959 — Collins, Paul H vs Collins, Richard Arnold — 0-1 — Hayes
1963 — Horberg, Bengt-Eric vs Nilsson, Zandor — 1-0 — Stockholm SWE
1966 — Frumson, Yury vs Ussakovsky — 1-0 — Moscow RUS
1970 — Bilo, Heinz vs Ophoff, Rigobert — 1-0 — Moeller Werke
4.f3 — 0.5% (15 parties)
1994 — McCracken, David vs Chris Gardner — 1-0 — USAT West
1999 — Jakab, Andras vs Spielmann, Alain — 1/2-1/2 — Budapest HUN
1999 — Bratchenko, Alexander vs Yagupov, Igor — 1/2-1/2 — Nizhnij Novgorod
2000 — Glud, Jakob Vang vs Fossum, Oystein Boyum — 1/2-1/2 — Espoo
2002 — Kudischewitsch, David vs Deutsch, Eyal — 1-0 — Tel Aviv ISR
4.Bxc4 — 0.1% (3 parties)
1997 — Berdhold, Sarah vs Langen Yvonne — 1/2-1/2 — Biedenkopf
1998 — Brauner Simon vs Huschebeck, Antonia — 1-0 — Osterode
2012 — Afanasyev, Viktor Alekseevich vs Chirkov, Vasily Veniaminovic — 0-1 — ICCF