A09q - 3…c5 - Reti: Accepted (1926)

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A09q — Reti: Accepted (1926)
1.Nf3 d5 2.c4 dxc4 3.Na3 c5
Les coups candidats
4.Nxc4 — 88.4% (183 parties)
Ambassadeurs : Garcia Palermo, Carlos Horacio (6x), Choma, Ernani Francisco (4x), Yakovich, Yuri (3x), Sadler, Matthew D (3x), Nyback, Tomi (3x), Feustel, Bernd (2x), Vadasz, Laszlo (2x), Groszpeter, Attila (2x)
4.g3 — 8.7% (18 parties)
Ambassadeurs : Rublevsky, Sergei (2x), Nikolac, Juraj (1x), Buljovcic, Ivan (1x), Dors, Ryszard (1x), Kaminski, Stefan (1x), Neverov, Valeriy (1x), Muhamedzjanov, Nail (1x), Arkell, Keith C (1x)
4.e3 — 2.4% (5 parties)
Ambassadeurs : Diogenes, Jarlene Meyre (1x), Gandalf (1x), Duffau, Pascal (1x), Villeneuve, Alain (1x), Muse, Drazen (1x), Shapiro, Yosip (1x), Czibulka, Zoltan Dr. (1x), Kovacs, Marton (1x)
4.Qa4+ — 0.5% (1 parties)
Ambassadeurs : Maxwell, Daniel (1x), Van den Bersselaar, Jeroen (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 4.Nxc4 4.g3 4.e3 4.Qa4+
<1800 2 100% — — —
1800-2200 53 91% 6% 2% 2%
2200-2600 109 86% 11% 3% —
Évolution par décennie (% des parties)
Décennie N parties 4.Nxc4 4.g3 4.e3 4.Qa4+
1950s 1 100% — — —
1960s 4 75% 25% — —
1970s 6 100% — — —
1980s 31 90% 10% — —
1990s 86 87% 10% 1% 1%
2000s 46 91% 4% 4% —
2010s 23 96% — 4% —
2020s 10 60% 30% 10% —
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
4.Nxc4 96% 60% ▼ -35.7%
4.g3 0% 30% ▲ +30.0%
4.e3 4% 10% ▲ +5.7%
4.Qa4+ 0% 0% +0.0%
Parties historiques
4.Nxc4 — 88.4% (183 parties)
1955 — Bak, Istvan vs Keres, Paul Petrovich — 1/2-1/2 — Budapest HUN
1963 — Doda, Zbigniew vs Kavalek, Lubomir — 1-0 — Halle zt
1964 — Chistiakov, Alexander vs Gulko, Boris — 1-0 — URS
1969 — Gipslis, Aivars vs Ustinov, Georgy I — 1-0 — Kiev UKR
1971 — Brodie, Hugh vs Billyard, Ron — 1-0 — Canada
4.g3 — 8.7% (18 parties)
1965 — Nikolac, Juraj vs Buljovcic, Ivan — 1-0 — Novi Sad SRB
1987 — Dors, Ryszard vs Kaminski, Stefan — 1-0 — J.T.Befama
1988 — Neverov, Valeriy vs Muhamedzjanov, Nail — 1-0 — Naberezhnie Chelni
1988 — Arkell, Keith C vs Jackson, Sheila — 1-0 — Duncan Lawrie
1991 — Karkanaqe, Ilir vs Velikov, Petar — 1/2-1/2 — Hania
4.e3 — 2.4% (5 parties)
1995 — Diogenes, Jarlene Meyre vs Gandalf — 0-1 — ?
2001 — Duffau, Pascal vs Villeneuve, Alain — 1-0 — St-Chely d'Aubrac FRA
2005 — Muse, Drazen vs Shapiro, Yosip — 1-0 — Berlin GER
2015 — Czibulka, Zoltan Dr. vs Kovacs, Marton — 1/2-1/2 — Level
2022 — Kusa, Jakub vs Langner, Ladislav — 1/2-1/2 — Czech Republic CZE
4.Qa4+ — 0.5% (1 parties)
1994 — Maxwell, Daniel vs Van den Bersselaar, Jeroen — 1/2-1/2 — Nederland tt