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A05c — Polish Opening: Zukertort System (1924)
1.Nf3 Nf6 2.b4
Les coups candidats
2…e6 — 33.9% (428 parties)
Ambassadeurs : Whittaker, Ian P (10x), Avchinikov, Viktor (7x), Uddin, Md. Saif (7x), Schulz, Hans-Juergen (6x), Liptak, Tibor (5x), Gurgenidze, Bukhuti (5x), Kossobudzki, Robert (4x), Dominguez Martinez Miguel Angel (3x)
2…g6 — 27.5% (347 parties)
Ambassadeurs : Feldstein Esq, Robert A (7x), Ebert, Lutz (5x), ? (4x), Kossobudzki, Robert (4x), Santasiere, Anthony (3x), Nikolaevsky, Yuri V (3x), Antal, Sebestyen Jr. (3x), Grigoriev, Armen (3x)
Ambassadeurs : Avchinikov, Viktor (13x), Whittaker, Ian P (7x), Cirulis, Ilmars (6x), Gurgenidze, Bukhuti (4x), Schueller, Rudolf (3x), Adomaitis, Benas (3x), Pedersen, Jacob Bang (2x), Baumann, Thomas (2x)
2…d6 — 4.5% (57 parties)
Ambassadeurs : Mrozinski, Werner (2x), Cuellar, Jorge (1x), Sieiro Gonzalez, Luis (1x), Moody, David W (1x), Triplett, Thomas (1x), Feldstein Esq, Robert A (1x), Benko, Pal (1x), Salas Leal, Mario (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 2…e6 2…g6 2…d5 2…d6
<1800 116 42% 28% 16% 4%
1800-2200 560 33% 26% 21% 6%
2200-2600 321 29% 30% 24% 5%
2600+ 3 33% 33% — —
Évolution par décennie (% des parties)
Décennie N parties 2…e6 2…g6 2…d5 2…d6
1950s 12 42% 33% — —
1960s 31 45% 45% 3% —
1970s 41 37% 37% 15% 2%
1980s 90 34% 26% 20% 4%
1990s 230 35% 29% 19% 6%
2000s 347 33% 28% 18% 5%
2010s 412 34% 24% 25% 4%
2020s 100 28% 27% 27% 3%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
2…e6 34% 28% ▼ -5.7%
2…g6 24% 27% ▲ +2.7%
2…d5 25% 27% ▲ +2.2%
2…d6 4% 3% ▼ -1.4%
Joueurs célèbres
Champions du monde dans cette position
Smyslov, Vladimir — 1 partie
Parties historiques
2…e6 — 33.9% (428 parties)
1952 — Benko, Francisco vs Corte, Trai A — 0-1 — Buenos Aires ARG
1953 — Mardle, Denis vs Harris, Gabriel — 1/2-1/2 — Hastings ch-BCF
1954 — Koelsche, Giles A vs Smith, Philip D — 0-1 — Los Angeles, CA USA
1956 — Matskevich, Avshalom vs Lipnitsky, Isaac — 0-1 — Kiev UKR
1959 — Plinsinga, Wiert Johan vs Klechniowski, Andrzej — 1/2-1/2 — Warsaw POL
2…g6 — 27.5% (347 parties)
1955 — Olafsson, Thorir vs Gudmundsson, Arinbjorn — 0-1 — ?
1956 — Serebrisky, Alexander S vs Khavin, Abram Leonidovich — 1-0 — Kiev UKR
1959 — ? vs Levin, Mikhail — 1/2-1/2 — Kiev UKR
1959 — ? vs Bannik, Anatolij — 1-0 — Kiev UKR
1962 — Gamm, Peter vs Sloan, Sam — 1/2-1/2 — Queen City Open;Charlotte,NC
2…d5 — 20.7% (262 parties)
1964 — Serebrisky, Alexander S vs Akimov, Viktor V — 1/2-1/2 — ?
1971 — Jurado, Hector vs Zalys, Ignas — 1/2-1/2 — corr
1971 — Sorenson, S. vs Carlson, Curtis — 0-1 — cr.
1972 — Gurgenidze, Bukhuti vs Morgulov, Alexsander M — 1-0 — ?
1973 — Urban, Hans-Rainer vs Hassenzahl, M. — 1-0 — corr DDR-JFSM
2…d6 — 4.5% (57 parties)
1976 — Salas Leal, Mario vs Cote, Frederic — 1/2-1/2 — Haifa ISR
1982 — Cuellar, Jorge vs Sieiro Gonzalez, Luis — 1/2-1/2 — Havana CUB
1986 — Schlaugat, Michael vs Vieten, Siegbert — 0-1 — Germany West
1988 — Moody, David W vs Triplett, Thomas — 1/2-1/2 — ?
1989 — Feldstein Esq, Robert A vs Benko, Pal — 0-1 — New York, NY USA