A40o - 2.c4 - Queen’s Pawn (1909)

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A40o — Queen’s Pawn (1909)
1.d4 e6 2.c4
Les coups candidats
Ambassadeurs : Brynell, Stellan (169x), B, Owen (162x), Drasko, Milan (145x), Psakhis, Lev (122x), Luther, Thomas (108x), Bakheet Farag (106x), Huss, Andreas (102x), Hou, Yifan (83x)
Ambassadeurs : Gleizerov, Evgeny (228x), Ulybin, Mikhail (155x), Naumkin, Igor (127x), Williams, Simon K (91x), Moskalenko, Viktor (80x), Woodhouse, Stephen V (69x), Just, Gabriele, Dr. (63x), Karlsson, Lars 1937 (58x)
Ambassadeurs : Kekki, Jorma (83x), Lputian, Smbat (77x), Weyerstrass, Ronald (62x), Bernal Varela, Nelson (57x), ? (52x), Leer-Helgesen, Bjarte (46x), Jovanovic, Bratislav M (41x), Grummitt, William (35x)
Ambassadeurs : Gaujens, Artis (86x), Czebe, Attila (78x), Speelman, Jon S (71x), Kengis, Edvins (65x), Bokros, Albert (50x), Bunzmann, Dimitrij (47x), Grabuzova, Tatiana (47x), Rahman, Ziaur (42x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 2…Nf6 2…f5 2…d5 2…b6
<1800 6244 26% 20% 31% 9%
1800-2200 33888 29% 25% 24% 11%
2200-2600 36621 33% 21% 16% 14%
2600+ 1295 29% 13% 16% 20%
Évolution par décennie (% des parties)
Décennie N parties 2…Nf6 2…f5 2…d5 2…b6
1950s 540 24% 49% 17% 1%
1960s 761 29% 33% 21% 1%
1970s 1127 33% 26% 21% 9%
1980s 4093 35% 25% 21% 6%
1990s 15343 28% 26% 22% 10%
2000s 26269 31% 20% 23% 13%
2010s 32507 31% 22% 21% 12%
2020s 9539 27% 20% 23% 17%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
2…Nf6 31% 27% ▼ -3.5%
2…f5 22% 20% ▼ -2.0%
2…d5 21% 23% ▲ +2.2%
2…b6 12% 17% ▲ +5.4%
Joueurs célèbres
Champions du monde dans cette position
Botvinnik, Mikhail — 10 parties
Tal, Mikhail — 10 parties
Karpov, Anatoly — 10 parties
Kramnik, Vladimir — 10 parties
Carlsen, Magnus — 10 parties
Hou, Yifan — 10 parties
Ju, Wenjun — 10 parties
Ding, Liren — 10 parties
Kasparov, Garry — 7 parties
Anand, Viswanathan — 5 parties
Gukesh D — 3 parties
Smyslov, Vladimir — 2 parties
Parties historiques
2…Nf6 — 30.2% (27197 parties)
1950 — Donner, Jan-Hein vs Eken, Max — 1/2-1/2 — Beverwijk Beverwijk NED
1950 — Pachman, Ludek vs Smyslov, Vasily — 1/2-1/2 — Venice ITA
1950 — Rabar, Braslav vs Fuderer, Andrija — 0-1 — Bled SLO
1950 — Van den Tol, Theo vs Soluch, Leopold — 0-1 — Vienna AUT
1950 — Holowach, Walter vs Kelsey, Al — 1-0 — Edmonton CAN
2…f5 — 22.5% (20266 parties)
1950 — Bosch van Rosenthal, Edzard vs Rossolimo, Nicolas — 1-0 — Beverwijk NED
1950 — Enevoldsen, Harald vs Gligoric, Sofija — 0-1 — Dubrovnik olm
1950 — Rivier, Andre Raymond vs Mardle, Denis — 0-1 — West London CC
1950 — Karff, Mona M vs Grushkova, Bellska Nina — 1/2-1/2 — Ch World (match-tournament) (
1950 — Willson, Alan John vs Barker, Malcolm Neil — 0-1 — Hastings ENG
2…d5 — 21.9% (19754 parties)
1950 — Pinzon Solis, Felipe vs Kesten, Sebastian — 1-0 — Dubrovnik olm
1950 — Collet, Hugo vs Letelier Martner, Rene — 1-0 — Dubrovnik olm
1950 — Evans Lianda vs Kesten, Sebastian — 1-0 — Dubrovnik olm
1950 — Hultgren, Ralph vs Richards, Ray — 0-1 — No California
1950 — Zografakis, Aristidis vs Letelier Martner, Rene — 1-0 — Dubrovnik olm
2…b6 — 12.0% (10787 parties)
1952 — Da Costa, Thomas Jefferson Pires vs Cole, Henry — 0-1 — Chester
1953 — Hooper, David vs Wallis, Philip N — 1-0 — Hastings ch-BCF
1954 — Fazekas, Stephan vs Wallis, Philip N — 1-0 — Nottingham ch-BCF
1954 — Wood, Baruch vs Wallis, Philip N — 1/2-1/2 — Nottingham ch-BCF
1956 — Venkataramanan, T.S. vs Cardoso, Radolfo Tan — 0-1 — Moskou olm