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E60h — b3 System (1933)
1.d4 Nf6 2.c4 g6 3.Nf3 Bg7 4.b3 d6 5.Bb2 O-O 6.e3
Les coups candidats
6…Nbd7 — 45.9% (366 parties)
Ambassadeurs : Tolonen, Leo (16x), Flohr, Salo (3x), Montag, Wilfrid Franz (3x), Grathwohl, Roland (3x), Gligoric, Sofija (2x), Cuderman, Vinko (2x), Dworzynski, Roman (2x), Lehmann, Heinz (2x)
6…e5 — 16.4% (131 parties)
Ambassadeurs : De Jong, Migchiel (5x), Flohr, Salo (4x), Lehmann, Heinz (2x), Kramer, Hanspeter (2x), Matanovic, Anto (2x), Patwardhan, Omkar (2x), Bu, Xiangzhi (2x), Dittmann, Sieghart (1x)
6…c5 — 14.3% (114 parties)
Ambassadeurs : Letelier Martner, Rene (1x), Larsen, Bent Ravn (1x), Toth, Peter (1x), Camara, Helder (1x), Cseh, Andor (1x), Filep, Tibor (1x), Prokhorovich, Taras E (1x), Vladimirov, Boris (1x)
6…c6 — 8.1% (65 parties)
Ambassadeurs : Wilhelmi, Christian (2x), Kabes, V. (1x), Pechan, Z. (1x), Flohr, Salo (1x), Andersson, Bjorn 1960 (1x), Eleveld, Henk (1x), Van Wely, Loek (1x), Dobrovolsky, Ladislav (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 6…Nbd7 6…e5 6…c5 6…c6
<1800 79 52% 8% 9% 6%
1800-2200 311 40% 14% 18% 11%
2200-2600 250 48% 25% 12% 8%
2600+ 4 50% 50% — —
Évolution par décennie (% des parties)
Décennie N parties 6…Nbd7 6…e5 6…c5 6…c6
1950s 26 46% 19% 15% 4%
1960s 15 33% 53% 7% 7%
1970s 23 52% 17% 13% 4%
1980s 34 47% 24% 9% 6%
1990s 161 52% 14% 15% 9%
2000s 202 47% 14% 14% 9%
2010s 231 42% 17% 16% 8%
2020s 106 45% 15% 13% 8%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
6…Nbd7 42% 45% ▲ +3.7%
6…e5 17% 15% ▼ -1.8%
6…c5 16% 13% ▼ -2.8%
6…c6 8% 8% ▲ +0.7%
Joueurs célèbres
Champions du monde dans cette position
Kasparov, Garry — 1 partie
Ding, Liren — 1 partie
Gukesh D — 1 partie
Parties historiques
6…Nbd7 — 45.9% (366 parties)
1953 — Gligoric, Sofija vs Ojanen, Kaarle S — 1-0 — Mar del Plata ARG
1955 — Flohr, Salo vs Dworzynski, Roman — 1-0 — POL-URS Lodz POL
1955 — Milic, Borislav vs Gligoric, Sofija — 1/2-1/2 — Novi Sad SRB
1956 — Flohr, Salo vs Dworzynski, Roman — 1-0 — Marianske Lazne
1956 — Arias-Romero, Sullyvan vs Berliner, Hans — 0-1 — ?
6…e5 — 16.4% (131 parties)
1952 — Truelsen, Ole Illum vs Kolvig, Bent — 0-1 — Copenhagen DEN
1954 — Trifunovic, Petar vs Czerniak, Magdalena — 1/2-1/2 — Amsterdam olm
1955 — Milic, Borislav vs Talevski, Mihajlo — 1/2-1/2 — Novi Sad SRB
1956 — Porath, Yosef vs Matanovic, Anto — 1/2-1/2 — Moskou olm
1957 — Kramer, Hanspeter vs Matanovic, Anto — 1/2-1/2 — Beverwijk NED
6…c5 — 14.3% (114 parties)
1955 — Blaszczak, Czeslaw vs Witkowski, Stefan — 1-0 — Poland ch13
1956 — Cseh, Andor vs Filep, Tibor — 1/2-1/2 — Debrecen HUN
1957 — Prokhorovich, Taras E vs Vladimirov, Boris — 1/2-1/2 — Sverdlovsk
1958 — Letelier Martner, Rene vs Larsen, Bent Ravn — 0-1 — Mar del Plata ARG
1960 — Toth, Peter vs Camara, Helder — 0-1 — Fortaleza BRA
6…c6 — 8.1% (65 parties)
1950 — Kabes, V. vs Pechan, Z. — 0-1 — Chocen
1962 — Flohr, Salo vs Andersson, Bjorn 1960 — 1-0 — Stockholm int. turneringen
1975 — Kosenkov, Vsevolod Tikhonovich vs Pelts, Roman — 1-0 — Cheliabinsk tt
1982 — Dobrovolsky, Ladislav vs Vokac, Marek — 0-1 — Frenstat
1988 — Eleveld, Henk vs Van Wely, Loek — 0-1 — Groningen rapid