B41d — Kan (1904)
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Be2
Les coups candidats
Ambassadeurs : Fedorchuk, Sergey A. (23x), Miezis, Normunds (12x), Vega Gutierrez, Sabrina (11x), Heberla, Bartlomiej (11x), Ricardi, Pablo (10x), Daulyte-Cornette, Deimante (10x), Azarov, Sergei (10x), Panno, Oscar (9x)
5…Qc7 — 24.6% (968 parties)
Ambassadeurs : Pacuszka, Wioletta (4x), Veloso, Palas Atena (3x), Bendisch, Juergen, Dr. (3x), Kuhar, Larisa (3x), Larsen, Poul M. (2x), Gilden, Lawrence (2x), Karastoichev, Emil (2x), Zelcic, Robert (2x)
5…b5 — 4.9% (195 parties)
Ambassadeurs : Daulyte-Cornette, Deimante (4x), Jahn, Constanze (2x), Sanchez, Jose A. (2x), Tosic, Miroslav (2x), Fortis, Rodolfo (2x), Solak, Dragan (2x), Milov, Vadim (2x), Tomczak, Jacek (2x)
5…Nc6 — 3.6% (140 parties)
Ambassadeurs : Nocke, Thomas (2x), Sobolevsky, Leonid (2x), Honfi, Karoly (1x), Rakic, Tomislav (1x), Ducic, Bogdan (1x), Ojanen, Kaarle S (1x), Kostro, Jerzy (1x), Neikirkh, Oleg (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 5…Nf6 5…Qc7 5…b5 5…Nc6
<1800 282 48% 33% 9% 5%
1800-2200 1755 57% 31% 4% 4%
2200-2600 1358 75% 15% 5% 1%
2600+ 63 86% 3% 3% 2%
Évolution par décennie (% des parties)
Décennie N parties 5…Nf6 5…Qc7 5…b5 5…Nc6
1950s 32 84% 9% 6%
1960s 61 57% 38% 3%
1970s 61 57% 36% 7%
1980s 109 71% 19% 4% 3%
1990s 512 60% 25% 3% 7%
2000s 1376 61% 24% 6% 4%
2010s 1547 64% 25% 5% 3%
2020s 242 71% 17% 6% 1%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
5…Nf6 64% 71% ▲ +7.1%
5…Qc7 25% 17% ▼ -8.1%
5…b5 5% 6% ▲ +0.8%
5…Nc6 3% 1% ▼ -1.3%
Joueurs célèbres
Champions du monde dans cette position
Hou, Yifan — 7 parties
Anand, Viswanathan — 4 parties
Tal, Mikhail — 2 parties
Karpov, Anatoly — 1 partie
Ding, Liren — 1 partie
Parties historiques
5…Nf6 — 62.8% (2473 parties)
1952 — Nikitin, Aleksander S vs Kan, Ilya A — 0-1 — Riga LAT
1954 — Batuev, Andrey M vs Bastrikov, Georgy — 1-0 — Riga LAT
1954 — Suetin, Alexey S vs Livshin, Iosif — 0-1 — Kiev ch-URS
1955 — Geller, Efim P. vs Kan, Ilya — 1-0 — Moskou ch-URS
1955 — Scherbakov, Aleksandr vs Usachyi, Vladimir — 1-0 — USSR
5…Qc7 — 24.6% (968 parties)
1957 — Payne, Robert vs Wade, Robert G — 0-1 — Southend
1958 — Beilin, Mikhail vs Abramov, Lev — 1/2-1/2 — Moscow RUS
1959 — Damen, Huguette vs Todorova, Paunka — 0-1 — Plovdiv BUL
1960 — Diaz, Jose Luis vs Cuasnicu, Oscar — 0-1 — Azul ch-ARG jr
1960 — Dommeyer, Carl vs Blackstone, John — 0-1 — Campbell, CA
5…b5 — 4.9% (195 parties)
1987 — Bos-Swiecik, Iwona vs Jahn, Constanze — 1/2-1/2 — Halle GER
1988 — Milivojevic, Neven vs Sanchez, Jose A. — 0-1 — Zalaegerszeg
1988 — Bestman, Aren vs Sanchez, Jose A. — 0-1 — Zalaegerszeg
1989 — Rico, Juan Francisco vs Sanchez Almeyra, Jorge — 0-1 — Alicante ESP
1991 — Houtsonen, Pedri vs Ihonen, Jari — 1-0 — Kuopio Kalakukko
5…Nc6 — 3.6% (140 parties)
1957 — Honfi, Karoly vs Rakic, Tomislav — 1-0 — Budapest HUN
1958 — Kostro, Jerzy vs Neikirkh, Oleg — 0-1 — It Kienbaum GER
1965 — Mulkers, Willy vs Vreeken, Corry — 1/2-1/2 — Detmold GER
1966 — Ducic, Bogdan vs Ojanen, Kaarle S — 1-0 — Havana CUB
1970 — Bystrom, John vs Staszko, Tadeusz — 1-0 — ?