A31f - 4.Nc3 - Symmetrical, Two Knights (1928)

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A31f — Symmetrical, Two Knights (1928)
1.c4 c5 2.Nf3 Nf6 3.d4 g6 4.Nc3
Les coups candidats
4…cxd4 — 60.4% (4370 parties)
Ambassadeurs : Cebalo, Miso (17x), Adamski, Jan (13x), Andersson, Ulf (12x), Bellon Lopez, Juan Manuel (9x), Arias Hernandez, Scarlett Terry (9x), Eberth, Zoltan Bela (8x), ? (8x), Pytel, Krzysztof (7x)
4…Bg7 — 37.9% (2741 parties)
Ambassadeurs : Pytel, Krzysztof (9x), Madl, Ildiko (8x), Kountz, Jochen (7x), Ghitescu, Theodor (5x), Letelier Martner, Rene (4x), Trifunovic, Petar (4x), Kavalek, Lubomir (4x), Popov, Luben (4x)
4…b6 — 0.6% (42 parties)
Ambassadeurs : Rostrom, R. (2x), Burschowsky, Matthias (2x), Rosien, Thomas (1x), Cartu, Jasper Eliezar (1x), Varga, Gyula (1x), Tamasi, Albert (1x), Dakins, J. (1x), Doeserich, Juergen (1x)
4…e6 — 0.2% (17 parties)
Ambassadeurs : Ortiz, Israel (2x), Berube, Richard (1x), Daigle, Rejean (1x), Korchagin, Oleg (1x), Dusman, Aleksander (1x), Losicki, Michal (1x), Muzyka J (1x), Lopez Rivers, Wendel Ricardo (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 4…cxd4 4…Bg7 4…b6 4…e6
<1800 374 54% 44% 1% 0%
1800-2200 3013 60% 39% 1% 0%
2200-2600 2813 65% 34% 0% —
2600+ 29 93% 7% — —
Évolution par décennie (% des parties)
Décennie N parties 4…cxd4 4…Bg7 4…b6 4…e6
1950s 39 31% 69% — —
1960s 107 36% 64% — —
1970s 297 51% 47% — —
1980s 428 54% 45% — 0%
1990s 1600 58% 40% 1% 1%
2000s 2080 62% 37% 1% 0%
2010s 2282 64% 35% 1% 0%
2020s 397 68% 32% — —
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
4…cxd4 64% 68% ▲ +3.7%
4…Bg7 35% 32% ▼ -2.9%
4…b6 1% 0% ▼ -0.7%
4…e6 0% 0% -0.1%
Joueurs célèbres
Champions du monde dans cette position
Karpov, Anatoly — 5 parties
Tal, Mikhail — 1 partie
Kasparov, Garry — 1 partie
Carlsen, Magnus — 1 partie
Parties historiques
4…cxd4 — 60.4% (4370 parties)
1950 — Sarosy, Zoltan L vs K, Samuel Jeba — 1-0 — Toronto CAN
1951 — Musmann, Lothar vs Stahl, Franz — 1-0 — Leipzig GER
1952 — Casas Perea, Fernando vs Patt Rubinstein, Jacobo — 1-0 — Buenos Aires ARG
1954 — Chistiakov, Alexander vs Suetin, Alexey S — 0-1 — Riga LAT
1954 — Szabo, Laszlo vs Benko, Pal — 1/2-1/2 — Budapest HUN
4…Bg7 — 37.9% (2741 parties)
1951 — Rabar, Braslav vs Trifunovic, Petar — 1/2-1/2 — Ljubljana
1951 — Wade, Robert G vs Czerniak, Moshe — 0-1 — Reggio Emilia ITA
1953 — Newman, Richard vs Barden, Leonard — 0-1 — Hastings ENG
1954 — Moehring, Guenther vs Eising, Johannes — 0-1 — Schkopau
1954 — Sokolsky, Alexey vs Shamkovich, Leonid — 1/2-1/2 — Kiev ch-URS
4…b6 — 0.6% (42 parties)
1991 — Rosien, Thomas vs Cartu, Jasper Eliezar — 1-0 — St Ingbert
1991 — Dakins, J. vs Rostrom, R. — 0-1 — E Lansing ch-MI opB
1991 — Gatonye Dylan Gitau vs Rostrom, R. — 1-0 — Detroit Hart Plaza op
1992 — Haselhorst, Helmut vs Jung, Karl-Otto — 1/2-1/2 — St Ingbert
1993 — Varga, Gyula vs Tamasi, Albert — 1/2-1/2 — Kobanya
4…e6 — 0.2% (17 parties)
1983 — Berube, Richard vs Daigle, Rejean — 1-0 — Quebec CAN
1993 — Lopez Rivers, Wendel Ricardo vs Alkon, S. — 1-0 — Bratislava WchJM-U18
1996 — Simeone, Giulio vs Blonna, Michele — 1-0 — Rome ITA
1996 — Dadaniak, Tilman vs Luess, Hannes — 1/2-1/2 — Lingen
1996 — Stosius, Juergen vs Mathias, Manfred — 1-0 — ?