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A30h — Symmetrical Hedgehog System
1.c4 c5 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O e6
Eval: [+0.34]
Les coups candidats
Ambassadeurs : Andersson, Ulf (40x), Csom, Istvan (33x), Suba, Mihai (29x), Jurek, Josef (21x), Espig, Lutz (20x), Ornstein, Axel (19x), Browne, Walter Shawn (18x), Szmetan, Jorge (18x)
6.b3 — 17.0% (1673 parties)
Ambassadeurs : McNab, Colin A (13x), Csom, Istvan (6x), Panno, Oscar (6x), Gipslis, Aivars (6x), Panchenko, Alexander N (6x), Vukic, Milan (6x), Pribyl, Josef (6x), Dizdarevic, Emir (6x)
6.d4 — 5.7% (560 parties)
Ambassadeurs : Barcza, Gedeon (5x), Lechtynsky, Jiri (5x), Suba, Mihai (4x), Gromek, Jozef (3x), Giardelli, Sergio C. (3x), De Firmian, Nick (3x), Kholmov, Ratmir D (3x), Gutman, Lev (3x)
6.d3 — 2.3% (228 parties)
Ambassadeurs : McNab, Colin A (6x), Campanile, Antonio (3x), Tepasse, Wilhelm (2x), Solomons, Deon (2x), Lysyj, Igor (2x), Jary, Sergey (2x), Watson, Charles (1x), McIntosh, Leo (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 6.Nc3 6.b3 6.d4 6.d3
<1800 93 65% 18% 5% 8%
1800-2200 2531 70% 16% 7% 4%
2200-2600 6056 76% 18% 5% 1%
2600+ 170 80% 10% 8% 1%
Évolution par décennie (% des parties)
Décennie N parties 6.Nc3 6.b3 6.d4 6.d3
1920s 6 83% 17%
1930s 29 52% 28% 7% 10%
1940s 18 39% 28% 28% 6%
1950s 42 60% 31% 7%
1960s 53 58% 28% 13%
1970s 303 66% 25% 5% 2%
1980s 965 70% 21% 7% 1%
1990s 1577 73% 18% 5% 3%
2000s 2831 76% 15% 5% 3%
2010s 3373 75% 15% 6% 2%
2020s 642 73% 17% 7% 1%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
6.Nc3 75% 73% ▼ -2.2%
6.b3 15% 17% ▲ +1.9%
6.d4 6% 7% ▲ +1.4%
6.d3 2% 1% ▼ -1.0%
Joueurs célèbres
Champions du monde dans cette position
Smyslov, Vladimir — 10 parties
Carlsen, Magnus — 8 parties
Hou, Yifan — 8 parties
Tal, Mikhail — 7 parties
Kramnik, Vladimir — 7 parties
Kasparov, Garry — 6 parties
Botvinnik, Mikhail — 4 parties
Gukesh D — 4 parties
Karpov, Anatoly — 3 parties
Karpov, Aleksandr — 3 parties
Anand, Viswanathan — 3 parties
Ju, Wenjun — 3 parties
Euwe, Max — 2 parties
Ding, Liren — 1 partie
Parties historiques
6.Nc3 — 73.8% (7258 parties)
1923 — Walter, Max vs Wolf Heinrich — 0-1 — Maehrisch Ostrau
1926 — Kostic, Boris vs Alimonda, B. — 1-0 — Meran ITA
1927 — Reti, Richard vs Saemisch, Friedrich — 1-0 — Bad Homburg GER
1927 — Nogues Acuna, Alejandro vs Louviau, Arsene — 1-0 — London ENG
1928 — Kostic, Boris vs Steiner, Endre — 1/2-1/2 — Trencianske Teplice SVK
6.b3 — 17.0% (1673 parties)
1935 — Ichim, Trajan vs Lilienthal, Andor — 0-1 — Warsaw ol Warsaw POL
1936 — Botvinnik, Mikhail vs Capablanca, Jose — 0-1 — Moscow RUS
1937 — Zíta, František vs Luckis, Marcos — 1-0 — Stockholm SWE
1937 — Levenfish, Grigory vs Bondarevsky, Igor — 1/2-1/2 — Tbilisi ch-URS
1937 — Kan, Ilya A vs Makogonov, Vladimir — 0-1 — Tbilisi ch-URS
6.d4 — 5.7% (560 parties)
1927 — Euwe, Max vs Maroczy, Geza — 1/2-1/2 — London ENG
1938 — Eliskases, Erich vs Koch, Berthold — 1-0 — Bad Oeynhausen GER
1939 — Alatortsev, Vladimir N. vs Makogonov, Vladimir — 1/2-1/2 — Leningrad RUS
1940 — Muhring, Willem Jan vs Goris, W — 1-0 — Rotterdam NED
1941 — Barcza, Gedeon vs Szekely, Stefan — 1-0 — Hungary ch-01 4142
6.d3 — 2.3% (228 parties)
1930 — Kostic, Boris vs Znosko-Borovsky, Eugene — 0-1 — Nice FRA
1931 — Watson, Charles vs McIntosh, Leo — 1-0 — Melbourne AUS
1937 — Arevalo Robinson, Alicia vs Bergman, Carl J — 0-1 — Pittsburgh
1948 — Benko, Pal vs Beni, Alfred — 1/2-1/2 — Bad Gastein
1952 — Lange, Werner vs Gislason, Sigurdur — 1-0 — Helsinki FIN