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A28b — Four Knights, Nimzowitsch Variation (1926)
1.c4 e5 2.Nc3 Nc6 3.Nf3 Nf6 4.e4
Les coups candidats
4…Bb4 — 57.4% (3036 parties)
Ambassadeurs : Fedukin, Alexandre (84x), Rallabandi, Praveen Kumar (29x), Vakhidov, Jakhongir (25x), Vanosmael, Alexis (23x), Rimsans, Andris (22x), Glatthaar, Michael (22x), Bukal, Vladimir Jr. (20x), Akguney, Hasim (19x)
4…Bc5 — 26.5% (1402 parties)
Ambassadeurs : Fedukin, Alexandre (20x), Bukal, Vladimir Jr. (15x), Krause, Christian (6x), Budt, Karl-Heinz (5x), Dappiano, Andrea (5x), Koskinen, Henri (5x), McNab, Colin A (4x), Van Osmael, Alex (4x)
4…d6 — 10.7% (566 parties)
Ambassadeurs : Bukal, Vladimir Jr. (5x), Andersen, Daniel (5x), Paglilla, Carlos (3x), Sher, Miron (3x), Baghdasaryan, Vahe (3x), Hantke, Rolf (2x), Fuglsang, Flemming (2x), Panno, Oscar (2x)
4…Be7 — 1.6% (84 parties)
Ambassadeurs : Hantke, Rolf (1x), Latzel, Gerhard (1x), Liebert, Heinz (1x), Flohr, Salo (1x), Oest, Thorsten (1x), Schau, Helmut (1x), Welling, Gerard (1x), Groffen, Hans (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 4…Bb4 4…Bc5 4…d6 4…Be7
<1800 348 45% 36% 9% 5%
1800-2200 1977 56% 26% 11% 2%
2200-2600 2101 64% 22% 10% 0%
2600+ 163 71% 18% 7%
Évolution par décennie (% des parties)
Décennie N parties 4…Bb4 4…Bc5 4…d6 4…Be7
1950s 15 20% 40% 33% 7%
1960s 14 79% 7% 7%
1970s 60 42% 30% 18% 3%
1980s 141 39% 30% 24% 3%
1990s 571 41% 37% 15% 3%
2000s 855 43% 41% 12% 2%
2010s 1631 57% 26% 11% 2%
2020s 2003 71% 17% 7% 1%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
4…Bb4 57% 71% ▲ +13.5%
4…Bc5 26% 17% ▼ -8.5%
4…d6 11% 7% ▼ -3.9%
4…Be7 2% 1% ▼ -0.6%
Joueurs célèbres
Champions du monde dans cette position
Carlsen, Magnus — 7 parties
Karpov, Anatoly — 4 parties
Ding, Liren — 4 parties
Kramnik, Vladimir — 2 parties
Ju, Wenjun — 2 parties
Kasparov, Garry — 1 partie
Gukesh D — 1 partie
Parties historiques
4…Bb4 — 57.4% (3036 parties)
1950 — Tartakower, Savielly vs Schmid, Lothar — 1-0 — Southsea ENG
1951 — Holowach, Walter vs Anderson Harris — 0-1 — Vancouver
1951 — Holowach, Walter vs Yanofsky, Daniel Abraham — 0-1 — Vancouver
1972 — Zagorovsky, Mikhail Pavlovich vs Krzyszton, Jerzy — 0-1 — ICCF
1972 — Zagorovsky, Mikhail Pavlovich vs Zapletal, Jindrich — 1-0 — ICCF
4…Bc5 — 26.5% (1402 parties)
1950 — Schmid, Lothar vs Winterton, Ken — 1/2-1/2 — Southsea
1950 — Tartakower, Savielly vs Berlacki, Pierre — 1-0 — Paris FRA
1950 — Schmid, Lothar vs Aarav Mutha — 1-0 — Bamberg
1951 — Holowach, Walter vs Daksh Santosh Nathani — 1/2-1/2 — Vancouver
1956 — Marchand, Erich W vs Nowak, John — 1-0 — Oklahoma City, OK USA
4…d6 — 10.7% (566 parties)
1950 — Tartakower, Savielly vs Poulsen, Christian — 1-0 — Dubrovnik olm
1951 — Holowach, Walter vs Yerhoff, Frank — 1/2-1/2 — Vancouver
1957 — Eirrian Silverio vs Vinagre, Alejandro — 0-1 — Lisbon POR
1958 — Hantke, Rolf vs Flatau, Leo — 1-0 — Detmold
1959 — Hantke, Rolf vs Schoppmeyer, Herbert — 1-0 — Lippstadt GER
4…Be7 — 1.6% (84 parties)
1958 — Hantke, Rolf vs Latzel, Gerhard — 1-0 — Detmold
1967 — Liebert, Heinz vs Flohr, Salo — 1/2-1/2 — Polanica Zdroj POL
1976 — Cleeve, John F. vs Haces, Francisco — 1-0 — ?
1977 — Camin, Gesine vs Nuenchert, Eveline — 1/2-1/2 — Frankfurt/Oder
1984 — Andersen, Jens Knud vs Gerigk, Wolf — 1/2-1/2 — BL2-N GER