A09q - 2…dxc4 3.Na3 c5 - Accepted

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A09q — Accepted
1.Nf3 d5 2.c4 dxc4 3.Na3 c5
Eval: [+0.22]
Les coups candidats
4.Nxc4 — 88.0% (198 parties)
Ambassadeurs : Garcia Palermo, Carlos Horacio (6x), Fine, Reuben (5x), Choma, Ernani Francisco (4x), Reti, Richard (3x), Keres, Paul Petrovich (3x), Ochkoos, Jura (3x), Sadler, Matthew D (3x), Putzbach, Gerd (3x)
4.g3 — 8.9% (20 parties)
Ambassadeurs : Rublevsky, Sergei (2x), Creevey, James (1x), O Hanlon John (1x), Kashdan, Isaac (1x), Nimzowitsch, Aaron (1x), Nikolac, Juraj (1x), Buljovcic, Ivan (1x), Dors, Ryszard (1x)
4.e3 — 2.2% (5 parties)
Ambassadeurs : Diogenes, Jarlene Meyre (1x), Gandalf (1x), Duffau, Pascal (1x), De Villeneuve, Arnaud (1x), Muse, Drazen (1x), Shapiro, Yosip (1x), Czibulka, Zoltan Dr. (1x), Kovacs, Marton (1x)
4.Qa4+ — 0.9% (2 parties)
Ambassadeurs : Morrison, John Harold (1x), Winter, William (1x), Maxwell Jayden Djibin (1x), Van den Bersselaar, Henri (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 41 93% 2% 5% —
2200-2600 110 87% 11% 2% —
2600+ 2 100% — — —
Évolution par décennie (% des parties)
Décennie N parties 4.Nxc4 4.g3 4.e3 4.Qa4+
1920s 5 80% — — 20%
1930s 10 80% 20% — —
1940s 3 100% — — —
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%
Joueurs célèbres
Champions du monde dans cette position
Botvinnik, Mikhail — 2 parties
Parties historiques
4.Nxc4 — 88.0% (198 parties)
1926 — Reti, Richard vs Havasi, Kornel — 1-0 — Budapest HUN
1926 — Reti, Richard vs Thomas, George Alan — 1-0 — Hastings Town Hall
1926 — Réti, Richard vs Thomas, George Alan — 1-0 — Hastings ENG
1926 — Reti, Richard vs Nimzowitsch, Aron — 0-1 — Semmering AUT
1936 — Botvinnik, Mikhail vs Fine, Reuben — 1/2-1/2 — Nottingham ENG
4.g3 — 8.9% (20 parties)
1931 — Kashdan, Isaac vs Nimzowitsch, Aaron — 1-0 — Bled SLO
1938 — Creevey, James vs O Hanlon John — 0-1 — ?
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 Mukhametzianov, N. — 1-0 — Naberezhnie Chelni
4.e3 — 2.2% (5 parties)
1995 — Diogenes, Jarlene Meyre vs Gandalf — 0-1 — Paderborn MicroWch13
2001 — Duffau, Pascal vs De Villeneuve, Arnaud — 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+ — 0.9% (2 parties)
1927 — Morrison, John Harold vs Winter, William — 0-1 — Tunbridge Wells
1994 — Maxwell Jayden Djibin vs Van den Bersselaar, Henri — 1/2-1/2 — Nederland tt