A30y - 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O e6 6.Nc3 Be7 7.d4 cxd4 8.Qxd4 d6 9.Rd1 a6 10.b3 Nbd7 11.e4 - Symmetrical Hedgehog Flexible Formation

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A30y — Symmetrical Hedgehog Flexible Formation
1.c4 c5 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O e6 6.Nc3 Be7 7.d4 cxd4 8.Qxd4 d6 9.Rd1 a6 10.b3 Nbd7 11.e4
Eval: [+0.35]
Les coups candidats
11…Qc8 — 33.9% (268 parties)
Ambassadeurs : Espig, Lutz (10x), Suba, Mihai (5x), Jurek, Josef (5x), Michaelsen, Nils (4x), Anreiter, Alois (4x), Ribli, Zoltan (3x), Foisor, Ovidiu-Doru (3x), Ayan Schneider (3x)
Ambassadeurs : Ribli, Zoltan (3x), Kirov, Nino (3x), Frois, Antonio (3x), Pritchett, Craig W (3x), Korsunsky, Rostislav R (2x), Morgulov, Alexsander M (2x), De Firmian, Nick (2x), Szymczak, Zbigniew (2x)
11…Qb8 — 21.4% (169 parties)
Ambassadeurs : Ribli, Zoltan (8x), Ftacnik, Lubomir (8x), Seirawan, Yasser (5x), Portisch, Lajos (4x), King, Daniel J (4x), Polugaevsky, Lev (4x), Dolmatov, Sergey (3x), Browne, Walter Shawn (3x)
Ambassadeurs : Vaganian, Rafael A (3x), Espig, Lutz (3x), Vera Gonzalez-Quevedo, Reynaldo (3x), Heinbuch, Detlef Ulrich (2x), De Firmian, Nick (2x), Ivanov, Igor V. (2x), Gheorghiu, Florin (2x), Ftacnik, Lubomir (2x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 11…Qc8 11…Qc7 11…Qb8 11…O-O
<1800 2 50% — — 50%
1800-2200 115 30% 38% 22% 6%
2200-2600 583 35% 25% 20% 16%
2600+ 21 38% 19% 29% 10%
Évolution par décennie (% des parties)
Décennie N parties 11…Qc8 11…Qc7 11…Qb8 11…O-O
1970s 6 — 50% 33% 17%
1980s 196 14% 24% 43% 14%
1990s 151 36% 25% 19% 19%
2000s 190 43% 27% 13% 16%
2010s 214 42% 28% 12% 12%
2020s 34 44% 32% 9% 9%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
11…Qc8 42% 44% ▲ +2.5%
11…Qc7 28% 32% ▲ +4.3%
11…Qb8 12% 9% ▼ -2.9%
11…O-O 12% 9% ▼ -3.3%
Joueurs célèbres
Champions du monde dans cette position
Karpov, Anatoly — 3 parties
Kramnik, Vladimir — 2 parties
Karpov, Aleksandr — 1 partie
Parties historiques
11…Qc8 — 33.9% (268 parties)
1982 — Bischoff, Klaus vs Lau, Ralf — 1-0 — Duitsland tt
1982 — Muco, Fatos vs Gheorghiu, Florin — 1/2-1/2 — Luzern olm
1985 — Wachinger, Guenther vs Podzielny, Karl-Heinz — 1/2-1/2 — Bayern-ch Ansbach
1986 — Karpov, Aleksandr vs Ribli, Zoltan — 1-0 — 27th Olympiad
1986 — Mandl, Robert vs Thesing, Matthias — 1/2-1/2 — BL
11…Qc7 — 26.4% (209 parties)
1975 — Petrosian, Tigran V. vs Andersson, Ulf — 1/2-1/2 — Milan ITA
1977 — Korsunsky, Rostislav R vs Morgulov, Alexsander M — 1-0 — Baku AZE
1977 — Korsunsky, Rostislav R vs Morgulov, Alexsander M — 1-0 — Baku AZE
1981 — Krnic, Zdenko vs Stoica, Valentin — 1-0 — Athens GRE
1981 — Henley, Ron vs Schneider, Attila — 1-0 — Budapest HUN
11…Qb8 — 21.4% (169 parties)
1975 — Uhlmann, Wolfgang vs Garcia Martinez, Silvino — 1/2-1/2 — Polanica Zdroj POL
1976 — Karpov, Anatoly vs Ljubojevic, Ljubomir — 1/2-1/2 — Manila PHI
1982 — Giardelli, Sergio C. vs Portisch, Lajos — 1/2-1/2 — Mar del Plata ARG
1982 — Seirawan, Yasser vs Polugaevsky, Lev — 1-0 — Mar del Plata ARG
1982 — Tiller, Bjorn vs Olafsson, Halldor — 1-0 — Randers DEN
11…O-O — 14.8% (117 parties)
1978 — Giardelli, Sergio C. vs Gheorghiu, Florin — 1/2-1/2 — Buenos Aires ARG
1980 — Alvarez Mateo, Roberto vs De Firmian, Nick — 0-1 — Olympiad, Malta
1981 — De Firmian, Nick vs Zivanovic, Ivan — 1-0 — Smederevska Palanka
1981 — Spiridonov, Nikola vs Makropoulos, Georgios — 1-0 — Pernik
1981 — Kirov, Nino vs Heinbuch, Detlef Ulrich — 1/2-1/2 — Hamburg GER