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A28h — Four Knights
1.c4 e5 2.Nc3 Nc6 3.Nf3 Nf6 4.e3 Bb4
Eval: [+0.00]
Les coups candidats
Ambassadeurs : Lanzani, Paolo (35x), Ellis, James R (32x), Jørgensen, Brian Jørgen (29x), Lunek, Ferry A (27x), Suba, Mihai (25x), Tsenkov, Ljubomir (24x), Hassim, Unes (24x), Esin, Maxim (23x)
5.Nd5 — 8.5% (538 parties)
Ambassadeurs : Flores, Diego (8x), McNab, Colin A (7x), Sunye Neto, Jaime (7x), Linqvist, Grels (6x), Huebner, Robert (5x), Miles, Anthony J (5x), Andreasen, Per Naesby (5x), Hochgraefe, Markus, Dr. (4x)
5.d4 — 2.8% (176 parties)
Ambassadeurs : Hatsek, Werner (6x), Sitorus, Yosua (6x), Willmann, Bernd (4x), David-Bordier, Christophe (4x), Reede, Arvo (4x), Astroukh, Vitalij (4x), Stancl, Vladimir (4x), Luzar, Bohumír (4x)
5.Qb3 — 1.5% (94 parties)
Ambassadeurs : Banas, Jan (30x), Mihalik, Marek (3x), Brockbank, Henry W (3x), Short, Nigel D (3x), Korchnoi, Viktor (2x), Hartereau, Philippe (2x), Bosboom, Manuel (2x), Polak, Tomas (2x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 5.Qc2 5.Nd5 5.d4 5.Qb3
<1800 126 71% 6% 11%
1800-2200 1569 83% 7% 5% 1%
2200-2600 3351 89% 8% 1% 1%
2600+ 273 88% 11% 1%
Évolution par décennie (% des parties)
Décennie N parties 5.Qc2 5.Nd5 5.d4 5.Qb3
1880s 2 50% 50%
1900s 1 100%
1920s 1
1930s 11 18% 45% 9%
1940s 5 40% 40%
1950s 11 55% 27% 9%
1960s 38 45% 26% 5% 11%
1970s 270 89% 8% 1% 0%
1980s 437 79% 16% 0% 3%
1990s 700 71% 19% 2% 3%
2000s 1045 81% 10% 2% 2%
2010s 2601 88% 5% 4% 1%
2020s 1179 92% 5% 2% 1%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
5.Qc2 88% 92% ▲ +4.0%
5.Nd5 5% 5% ▼ -0.5%
5.d4 4% 2% ▼ -2.3%
5.Qb3 1% 1% -0.5%
Joueurs célèbres
Champions du monde dans cette position
Smyslov, Vladimir — 10 parties
Ding, Liren — 8 parties
Kasparov, Garry — 4 parties
Karpov, Anatoly — 4 parties
Carlsen, Magnus — 4 parties
Karpov, Aleksandr — 3 parties
Anand, Viswanathan — 2 parties
Euwe, Max — 1 partie
Botvinnik, Mikhail — 1 partie
Tal, Mikhail — 1 partie
Hou, Yifan — 1 partie
Ju, Wenjun — 1 partie
Parties historiques
5.Qc2 — 84.5% (5325 parties)
1883 — McKenzie, George vs Rosenthal, Samuel — 1/2-1/2 — London ENG
1935 — Pirc, Vasja vs Lilienthal, Andor — 0-1 — Warsaw POL
1936 — Flohr, Salo vs Fine, Reuben — 1/2-1/2 — Nottingham ENG
1951 — Heinicke, Herbert vs Bogoljubow, Efim — 0-1 — Augsburg GER
1952 — Filip, Miroslav vs Potucek, Ludovit — 1-0 — Tatranska Lomnica
5.Nd5 — 8.5% (538 parties)
1906 — Swiderski, Radoslaw vs Marshall Viele, Fabrizio Aaron — 1/2-1/2 — Nuerenberg GER
1930 — Acevedo Villegas, Abel Alfredo vs Masi Elizalde — 1-0 — Buenos Aires ARG
1932 — Mueller, Hans vs Rethy, Pal — 1-0 — Budapest Budapest HUN
1933 — Eliskases vs Steiner, Laszlo — 0-1 — Budapest HUN
1937 — Ehrlich, L. vs Barta, Jan — 0-1 — Brno CZE
5.d4 — 2.8% (176 parties)
1880 — Zukertort, Johannes vs Rosenthal, Samuel — 1-0 — London ENG
1937 — Ehrlich, L. vs Florian, Jaromir — 0-1 — Brno CZE
1945 — Rudakovsky, Iosif vs Lilienthal, Andor — 1-0 — Moskou ch-URS
1947 — Botvinnik, Mikhail vs Pachman, Ludek — 0-1 — Moscow RUS
1959 — Matulovic, Milan vs Ivkovic, Danijal — 1-0 — Kragujevac ch14-YUG
5.Qb3 — 1.5% (94 parties)
1964 — Speer, Albrecht vs Bachmann, Karlheinz — 1-0 — It Detmold GER
1968 — Korchnoi, Viktor vs Lehmann, Karl-Heinz — 1-0 — Palma de Majorca ESP
1968 — Korchnoi, Viktor vs Lehmann, Heinz — 1-0 — Palma de Majorca ESP
1968 — Barcza, Gedeon vs Haag, Ervin — 1/2-1/2 — HUN
1975 — Acosta Rodriguez, Ramon David vs Enklaar, Bert — 0-1 — Amsterdam NED