D50c - 4…c5 - Been-Koomen Variation (1934)

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D50c — Been-Koomen Variation (1934)
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 c5
Les coups candidats
Ambassadeurs : Wade, Robert G (9x), Borisenko, Georgy K (7x), Meister, Jakob (7x), Aadhitha Karikalan (6x), Bisguier, Arthur B (6x), Prins, Lodewijk (5x), Cornelis, Frans B (5x), Levy, Louis (5x)
Ambassadeurs : Inkiov, Ventzislav (5x), Letzelter, Jean-Claude (4x), Wade, Robert G (2x), Taimanov, Mark (2x), Fairhurst, William (2x), Bowen, Alfred William (2x), Pafnutieff, Vladimir (2x), Pomar Salamanca, Arturo (2x)
Ambassadeurs : Prins, Lodewijk (2x), Schumacher, Jean Paul (1x), Holt, Eric (1x), Cherepkov, Alexander V (1x), Sergievsky, Vladimir D (1x), Geller, Uzi (1x), Harel, Amiel (1x), Sanchez Miguelez, Rafael (1x)
5.dxc5 — 1.8% (18 parties)
Ambassadeurs : Trujillo Ramirez, Oscar (1x), Roebuck, I. (1x), Wall, Steven (1x), Wall, Bill (1x), Ostruzlik, Marek (1x), Chrastina, M. (1x), Lopes, Lidiene Sommer da S (1x), Nardes, Nadia (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 5.cxd5 5.e3 5.Nf3 5.dxc5
<1800 61 64% 23% 10% 3%
1800-2200 312 63% 29% 5% 1%
2200-2600 262 76% 21% 2% 1%
2600+ 2 — 100% — —
Évolution par décennie (% des parties)
Décennie N parties 5.cxd5 5.e3 5.Nf3 5.dxc5
1950s 106 75% 20% 4% —
1960s 106 67% 26% 6% 1%
1970s 77 74% 19% 5% 1%
1980s 70 77% 17% 4% —
1990s 258 65% 25% 7% 2%
2000s 224 63% 26% 7% 4%
2010s 139 66% 28% 4% 1%
2020s 38 74% 18% 3% 3%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
5.cxd5 66% 74% ▲ +7.5%
5.e3 28% 18% ▼ -9.6%
5.Nf3 4% 3% ▼ -1.0%
5.dxc5 1% 3% ▲ +1.2%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 1 partie
Parties historiques
5.cxd5 — 67.9% (691 parties)
1950 — Trifunovic, Petar vs Prins, Lodewijk — 1/2-1/2 — Dubrovnik olm
1950 — Niemela, Ilmari Aarne vs Zapata Vinces, Mario — 1-0 — Dubrovnik olm
1950 — Bondarevsky, Igor vs Pytlakowski, Andrzej — 1-0 — Schiavno Zdroj
1950 — Harris, Peter A vs Bowen, Alfred William — 1/2-1/2 — Buxton
1950 — Trott, Arthur Henry vs Wade, Robert G — 0-1 — Southsea
5.e3 — 24.2% (246 parties)
1950 — Newman, Richard vs Bowen, Alfred William — 1/2-1/2 — Buxton
1950 — Koberl, Ferenc vs Kottnauer, Cenek — 1/2-1/2 — Schiavno Zdroj
1950 — Fairhurst, William vs Bowen, Alfred William — 1/2-1/2 — Buxton
1950 — Aabel Thomas Eapen vs Penrose, Jonathan — 0-1 — Southsea
1951 — Elliott, Henry J vs Brieger, Robert Sinclair — 1-0 — Forth Worth
5.Nf3 — 5.6% (57 parties)
1952 — Rapaka Samuel Paul vs Prins, Lodewijk — 1-0 — Havana CUB
1952 — Bolbochan, Jacobo vs Pinzon Solis, Felipe — 1/2-1/2 — Mar del Plata ARG
1955 — Korchnoi, Viktor vs Polugaevsky, Lev — 1/2-1/2 — Voroshilovgrad
1956 — Schoenherr, Helmut vs Kildal, Helge — 0-1 — Zittau
1961 — Geller, Uzi vs Harel, Amiel — 1-0 — Tel Aviv ISR
5.dxc5 — 1.8% (18 parties)
1966 — Trujillo Ramirez, Oscar vs Roebuck, I. — 0-1 — Oerebro
1975 — Wall, Steven vs Wall, Bill — 1-0 — Stony Point,NC
1996 — Mangold, Tanja vs Schmitt, Axel — 1/2-1/2 — Bad Duerkheim
1998 — Lopes, Lidiene Sommer da S vs Nardes, Nadia — 1-0 — Porto Belo
1998 — Klose, Werner vs Junker, Wilfried — 1/2-1/2 — Bad Wildungen