C49b - 5.O-O - Four Knights (1902)

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C49b — Four Knights (1902)
1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bb5 Bb4 5.O-O
Les coups candidats
Ambassadeurs : Jovanovic, Bratislav M (57x), Campora, Daniel H. (30x), Podlesnik, Bogdan (29x), Speisser, Patrick (23x), Iuldachev, Saidali (21x), Istratescu, Andrei (21x), Naiditsch, Arkadij (21x), Mrva, Vladimir (19x)
5…d6 — 6.0% (475 parties)
Ambassadeurs : Menyhart, Tibor (3x), Feldvabl, Vilem (3x), Foisor, Cristina-Adela (2x), Hoffrogge, Sarah (2x), Diehle, Julia (2x), Tessard, Julie (2x), Vaiciulenas, Lukas (2x), Shi, Diwen (2x)
5…Bxc3 — 3.5% (276 parties)
Ambassadeurs : Ilincic, Zlatko (8x), Graf, Alexander (2x), Menyhart, Tibor (2x), Nguyen, Ngoc Truong Son (2x), Lambert, Hans (1x), Staudte, Hans-Hilmar (1x), Petras, Jan (1x), Sevcak, Frantisek (1x)
5…Nd4 — 0.3% (25 parties)
Ambassadeurs : Matthai, Heinz (1x), Redlich, Olaf (1x), Hamann, Svend (1x), Brinck-Claussen, Bjorn (1x), Fallone, Michael (1x), Malcolm, Colin M (1x), Morovic Fernandez, Ivan (1x), Murey, Jacob (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 5…O-O 5…d6 5…Bxc3 5…Nd4
<1800 532 81% 13% 4% 0%
1800-2200 2555 89% 7% 3% 0%
2200-2600 3256 94% 2% 3% 0%
2600+ 207 99% 0% 0% —
Évolution par décennie (% des parties)
Décennie N parties 5…O-O 5…d6 5…Bxc3 5…Nd4
1950s 122 98% 1% 2% —
1960s 100 90% 6% 1% 3%
1970s 114 93% 3% 4% —
1980s 235 93% 4% 3% 1%
1990s 1452 87% 7% 4% 0%
2000s 2109 88% 7% 4% 0%
2010s 2718 91% 5% 3% 0%
2020s 1119 91% 5% 4% —
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
5…O-O 91% 91% ▼ -0.5%
5…d6 5% 5% -0.3%
5…Bxc3 3% 4% ▲ +1.1%
5…Nd4 0% 0% -0.4%
Joueurs célèbres
Champions du monde dans cette position
Karpov, Anatoly — 6 parties
Anand, Viswanathan — 6 parties
Carlsen, Magnus — 6 parties
Tal, Mikhail — 5 parties
Hou, Yifan — 3 parties
Ju, Wenjun — 2 parties
Gukesh D — 2 parties
Smyslov, Vladimir — 1 partie
Parties historiques
5…O-O — 89.7% (7148 parties)
1950 — Barendregt, Johan vs Van den Berg, Carel B — 1/2-1/2 — Amsterdam ch-NED
1950 — Petrosian, Tigran V. vs Furman, Semyon — 0-1 — Gorki
1950 — Trifunovic, Petar vs Bosch van Rosenthal, Edzard — 1-0 — Amsterdam NED
1950 — Maderna, Carlos vs Michel, Clement Paul — 1-0 — Mar del Plata ARG
1950 — Cortlever, Nico vs Henneberke, Frans — 1-0 — Amsterdam ch-NED
5…d6 — 6.0% (475 parties)
1950 — Karastoichev, Emil vs Petrov, Petar — 1-0 — Sofia BUL
1962 — Blackstone, John vs Sprague, B. — 1/2-1/2 — Sacramento, CA
1965 — Leijnen, Puck vs Haselhorst, Helmut — 1-0 — Schilde
1967 — Morgado, Juan Sebastian vs Abdijambylova, Naima — 1/2-1/2 — Villa Ballester ARG
1968 — Clipson, Robert vs Lopez, Mia — 1/2-1/2 — Concord
5…Bxc3 — 3.5% (276 parties)
1950 — Lambert, Hans vs Staudte, Hans-Hilmar — 1/2-1/2 — Dubrovnik olm
1951 — Fox, Alan vs Taylor, A (tony) — 1-0 — Vancouver
1965 — Petras, Jan vs Sevcak, Frantisek — 0-1 — Prague CZE
1971 — Cook, Roger S. vs Vassilaropoulos, Nicholas — 1-0 — Adelaide AUS
1971 — Kerchev, Zlatozar vs Pelitov, Dimitar — 1/2-1/2 — Sofia BUL
5…Nd4 — 0.3% (25 parties)
1960 — Fallone, Michael vs Malcolm, Colin M — 1-0 — Leicester
1963 — Hamann, Svend vs Brinck-Claussen, Bjorn — 1/2-1/2 — Odense DEN
1965 — Matthai, Heinz vs Redlich, Olaf — 0-1 — Kiel GER
1980 — Morovic Fernandez, Ivan vs Murey, Jacob — 1-0 — Ramat Hasharon
1988 — Doniec, Andrzej vs Burzynski, Krzysztof — 1-0 — ?