A69c - 10.Nd2 - Four Pawns, Main Line (1960)

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A69c — Four Pawns, Main Line (1960)
1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.f4 Bg7 8.Nf3 O-O 9.Be2 Re8 10.Nd2
Les coups candidats
Ambassadeurs : Almer, Guenter (10x), Devocelle, Luc (10x), Ziegert, Andreas (9x), Versavel, Franck (5x), Chiku-Ratte, Olivier-Kenta (5x), De Smet, Karl (4x), Hage, Henk H (4x), Goregliad, Sergei (3x)
10…Na6 — 29.1% (317 parties)
Ambassadeurs : Tytgat, Karel (6x), Hage, Henk H (5x), Segal, Alexandru Sorin (4x), Ramos Barraso, Manuel (4x), Magrin, Antonio (4x), Weissel, Georg (3x), Ouellet, Maili-Jade (3x), Peev, Peicho (2x)
Ambassadeurs : Versavel, Franck (10x), Hage, Henk H (6x), Ziegert, Andreas (5x), De Smet, Karl (5x), Almer, Guenter (4x), Devocelle, Luc (4x), Sarabia Utrilla, Joaquin (3x), Milgram, Charles (2x)
10…b6 — 6.2% (68 parties)
Ambassadeurs : Malich, Burkhard, Dr. (2x), Bogdanovic, Rajko (2x), Hua, Lefong (2x), Devocelle, Luc (2x), Talibov, Shiroghlan (2x), Zaitsev, Alexander (1x), Kondali, Jovan (1x), Fedder, Steen (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 10…a6 10…Na6 10…Nbd7 10…b6
<1800 72 44% 21% 10% 8%
1800-2200 509 38% 28% 9% 7%
2200-2600 276 28% 36% 8% 6%
2600+ 1 — — 100% —
Évolution par décennie (% des parties)
Décennie N parties 10…a6 10…Na6 10…Nbd7 10…b6
1950s 5 20% 60% 20% —
1960s 46 17% 50% — 15%
1970s 34 29% 21% 3% 12%
1980s 67 31% 27% 13% 6%
1990s 317 34% 30% 14% 4%
2000s 321 40% 26% 10% 5%
2010s 269 34% 30% 7% 6%
2020s 32 31% 19% 16% 16%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
10…a6 34% 31% ▼ -3.0%
10…Na6 30% 19% ▼ -11.4%
10…Nbd7 7% 16% ▲ +8.6%
10…b6 6% 16% ▲ +9.3%
Joueurs célèbres
Champions du monde dans cette position
Ding, Liren — 1 partie
Parties historiques
10…a6 — 34.8% (380 parties)
1959 — Fraidakis, Pantelis vs Radev, Nikolai — 1-0 — BUL-ch Sofia BUL
1962 — Malich, Burkhard, Dr. vs Storch, Lawrence A. — 1-0 — Gera
1962 — Malich, Burkhard, Dr. vs Starck, Bodo — 1/2-1/2 — Gera ch GDR
1964 — Van Humbeek, Willy vs Verstraeten, Roland — 1/2-1/2 — Mechelen
1967 — Pomar Salamanca, Arturo vs Szabo, Laszlo — 0-1 — Beverwijk NED
10…Na6 — 29.1% (317 parties)
1954 — Khavin, Abram Leonidovich vs Zveriaka — 1-0 — Kiev UKR
1954 — Golovko, Nikolay Grigorievic vs Pasman, Marks — 0-1 — Riga LAT
1955 — Portisch, Lajos vs Dely, Peter — 1-0 — Budapest HUN
1960 — Fraidakis, Pantelis vs Prahov, Valentin — 1-0 — Sofia ch BUL
1960 — Pantaleev, Leonid vs Parkhov, Evgeny — 1-0 — Bulgaria ch
10…Nbd7 — 10.3% (112 parties)
1959 — Mueller, E.H. vs Blackstone, John — 1-0 — San Jose, CA USA
1971 — Aguilar, Pompeyo vs Delgado, Alberto — 1/2-1/2 — Guatemala City GUA
1982 — Kakageldyev, Amanmurad vs Oll, Lembit — 1/2-1/2 — URS-ch sf Ivano Frankovsk
1984 — Bach Huynh Minh Khoi vs Piersig, Klaus — 0-1 — corr DDR
1985 — Brebrich, Branimir vs Hawkes, Rob — 0-1 — Alberta CAN
10…b6 — 6.2% (68 parties)
1962 — Osmanagic, Muamer vs Smailbegovic, Hasan — 1/2-1/2 — 5. It Sarajevo BIH
1963 — Uhlmann, Wolfgang vs Szabo, Laszlo — 1/2-1/2 — Sarajevo BIH
1963 — Popov, Vladilen vs Kadrev, Zdravko Minchev — 0-1 — Sofia BUL
1964 — Malich, Burkhard, Dr. vs Bogdanovic, Rajko — 1/2-1/2 — Zinnowitz Zinnowitz GER
1965 — Malich, Burkhard, Dr. vs Bogdanovic, Rajko — 1-0 — Sarajevo BIH