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A49c — Fianchetto System
1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2
Eval: [+0.17]
Les coups candidats
Ambassadeurs : Romanishin, Oleg M (157x), Kurajica, Bojan (156x), Dornbusch, Tatiana (58x), Eckhardt, Claudia (50x), Konopka, Michal (49x), Pert, Nicholas (49x), Csulits, Anton (41x), Jirovsky, Pavel (41x)
Ambassadeurs : Nikolic, Predrag (43x), Romanishin, Oleg M (41x), Mudrak, Josef (19x), Ruck, Robert (18x), Kozul, Zdenko (17x), Dreev, Aleksey (16x), Kurajica, Bojan (15x), Konopka, Michal (14x)
4…d6 — 8.2% (3142 parties)
Ambassadeurs : Matnadze Bujiashvili, Ann (12x), Eckhardt, Claudia (11x), Borriss, Claudia (10x), Macek, Vlasta (9x), Romanishin, Oleg M (7x), Cosma, Elena-Luminita (6x), Lanni, Vincenzo (5x), Dornbusch, Tatiana (5x)
4…c5 — 3.4% (1281 parties)
Ambassadeurs : Lagno, Kateryna (7x), Dreev, Aleksey (5x), Eckhardt, Claudia (4x), Hager, Joshua Aarash (4x), Henriksson, Johan 2011 (4x), Horvath, Csaba (4x), Barseghyan, Armen Ar. (4x), Luong Phuong Hanh (4x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 4…O-O 4…d5 4…d6 4…c5
<1800 968 69% 11% 16% 2%
1800-2200 13754 76% 9% 11% 3%
2200-2600 17152 82% 9% 5% 4%
2600+ 548 66% 29% 1% 4%
Évolution par décennie (% des parties)
Décennie N parties 4…O-O 4…d5 4…d6 4…c5
1870s 1 100%
1920s 26 73% 8% 15%
1930s 59 71% 12% 8% 3%
1940s 87 75% 15% 5% 3%
1950s 427 87% 5% 5% 1%
1960s 561 84% 4% 6% 6%
1970s 748 83% 6% 7% 3%
1980s 1578 85% 6% 5% 3%
1990s 7463 81% 8% 8% 3%
2000s 9932 77% 10% 9% 3%
2010s 13752 76% 11% 8% 4%
2020s 3515 77% 11% 7% 5%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
4…O-O 76% 77% ▲ +0.8%
4…d5 11% 11% -0.3%
4…d6 8% 7% ▼ -1.3%
4…c5 4% 5% ▲ +1.0%
Joueurs célèbres
Champions du monde dans cette position
Smyslov, Vladimir — 10 parties
Kasparov, Garry — 10 parties
Karpov, Anatoly — 10 parties
Kramnik, Vladimir — 10 parties
Ju, Wenjun — 10 parties
Carlsen, Magnus — 8 parties
Tal, Mikhail — 7 parties
Gukesh D — 7 parties
Karpov, Aleksandr — 6 parties
Ding, Liren — 6 parties
Anand, Viswanathan — 5 parties
Euwe, Max — 4 parties
Alekhine, Alexander — 1 partie
Steinitz, Wilhelm — 1 partie
Parties historiques
4…O-O — 78.0% (29775 parties)
1871 — Jankovec, Ivan vs Liebert, Heinz — 1-0 — Havirov CZE
1922 — Norman, George vs Conde, Adrian G — 1-0 — Hastings ENG
1922 — Johner, Paul vs Reti, Richard — 1-0 — Teplitz-Schoenau GER
1923 — Norman, George vs Garcia Conde, Adrian — 1-0 — Hastings Town Hall
1923 — Selezniev, Alexey vs Euwe, Max — 1-0 — Maehrisch Ostrau
4…d5 — 9.5% (3624 parties)
1922 — Przepiorka, Dawid vs Gruenfeld, Ernst — 1/2-1/2 — Bad Pistyan CZE
1924 — Pahl, Kurt vs Wegemund, Otto — 1/2-1/2 — Eisenach
1931 — De Witt, Rodolfo vs Acero Falcon, Lucas Esteban — 0-1 — Buenos Aires ARG
1933 — De Jong, Theodoor vs Illingworth, Leonard — 1-0 — Hastings, White Rock Pavilion
1936 — Araya Lagos, Jorge Eduardo vs Matrangolo, C. — 0-1 — Argentina
4…d6 — 8.2% (3142 parties)
1922 — Wahltuch, Victor vs Maroczy, Geza — 1/2-1/2 — London ENG
1925 — Przepiorka, Dawid vs Bellod Thomas, Gonzalo — 1-0 — Marienbad CZE
1925 — Przepiorka, Dawid vs Yates, Frederic D — 0-1 — Marienbad CZE
1928 — Cheron, Andre vs Golmayo Torriente, Manuel — 1/2-1/2 — The Hague NED
1930 — Sayers, James vs Watson, Charles — 0-1 — Melbourne AUS
4…c5 — 3.4% (1281 parties)
1933 — Ahues, Carl vs Richter, Kurt P — 1/2-1/2 — Bad Aachen GER
1935 — Runza, V vs Opocensky, Karel — 0-1 — Praag ch
1942 — Nielsen, Bjorn vs Poulsen, Christian — 1-0 — Norresundby ch DK
1943 — Steiner, Herman vs Barzin, Alborz — 1-0 — So Califoenia
1947 — Machate, Gottlieb vs Eisinger, Max Jr — 0-1 — Riedenburg