D50h - 5.cxd5 - Pseudo-Tarrasch Variation (1949)

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D50h — Pseudo-Tarrasch Variation (1949)
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 c5 5.cxd5
Les coups candidats
Ambassadeurs : Wade, Robert G (8x), Meister, Jakob (7x), Bisguier, Arthur B (6x), Prins, Lodewijk (5x), Cornelis, Frans B (5x), Levy, Louis (5x), Ginsburg, Gennadi (5x), Prange Eckhard (5x)
Ambassadeurs : Aadhitha Karikalan (6x), Borisenko, Georgy K (4x), Alexander Tadala (4x), Ujtumen, Tudev (3x), Wonn, Achim (2x), LAR, Rai Joseph (2x), Kollberg, Lothar (2x), Gawlikowski, Stanislaw (2x)
5…exd5 — 9.8% (68 parties)
Ambassadeurs : Lachmann, Hans G (1x), Schlotthauber, Werner (1x), Rovner, Dmitry (1x), Klaman, Konstantin Mikhailovich (1x), Blackstone, John (1x), Chemasuet Eddy (1x), Hasson, Francis (1x), Narsing Rao P (1x)
5…Be7 — 0.3% (2 parties)
Ambassadeurs : Beach, Thomas John (1x), Wood, Baruch (1x), Zijatdinov, Ramil (1x), Tagirov, Kajum K (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 5…cxd4 5…Qb6 5…exd5 5…Be7
<1800 40 65% 2% 30% —
1800-2200 199 69% 15% 15% 1%
2200-2600 200 83% 16% 2% —
Évolution par décennie (% des parties)
Décennie N parties 5…cxd4 5…Qb6 5…exd5 5…Be7
1950s 80 64% 32% 4% —
1960s 71 62% 37% — 1%
1970s 57 82% 16% 2% —
1980s 54 83% 13% 4% —
1990s 169 74% 14% 11% —
2000s 146 71% 10% 18% 1%
2010s 92 72% 14% 13% —
2020s 28 75% 7% 18% —
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
5…cxd4 72% 75% ▲ +3.3%
5…Qb6 14% 7% ▼ -7.0%
5…exd5 13% 18% ▲ +4.8%
5…Be7 0% 0% +0.0%
Parties historiques
5…cxd4 — 72.0% (502 parties)
1950 — Trifunovic, Petar vs Prins, Lodewijk — 1/2-1/2 — Dubrovnik olm
1950 — Trott, Arthur Henry vs Wade, Robert G — 0-1 — Southsea
1950 — Steiner, Herman vs Wade, Robert G — 1/2-1/2 — Venice ITA
1950 — Hooper, David vs Penrose, Jonathan — 0-1 — Buxton
1950 — Bogoljubow, Efim vs Wade, Robert G — 1-0 — Southsea
5…Qb6 — 17.5% (122 parties)
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 — Enevoldsen, Harald vs Canal, Esteban — 1/2-1/2 — Dubrovnik CRO
1952 — Niesner, Augustin vs Hoffmann, Achim Gunter — 1-0 — Prague CZE
5…exd5 — 9.8% (68 parties)
1956 — Rovner, Dmitry vs Klaman, Konstantin Mikhailovich — 1/2-1/2 — Leningrad RUS
1958 — Lachmann, Hans G vs Schlotthauber, Werner — 1-0 — Detmold
1958 — Blackstone, John vs Chemasuet Eddy — 1-0 — San Jose, CA USA
1977 — Karaosmanoglu, Sedat vs Omuku, Emmanuel — 0-1 — Groningen NED
1985 — Abdul Majid vs Al Harazy, Khalid — 1-0 — Sharjah UAE
5…Be7 — 0.3% (2 parties)
1967 — Beach, Thomas John vs Wood, Baruch — 0-1 — Oxford ENG
2009 — Zijatdinov, Ramil vs Tagirov, Kajum K — 1/2-1/2 — Ufa