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Estructura Scheveningen

No clue what it means because I am not Spanish if it is Spanish but what ever language it says besides English i won’t understand

No clue what it means because I am not Spanish if it is Spanish but what ever language it says besides English i won’t understand

Siempre pensaba que la línea Boleslavsky era 1.e4 c5 2.Cf3 d6 3.d4 cxd4 4.Cxd4 Cf6 5.Cc3 Cc6 6.Ae2 e5.
I've always believed 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Be2 e5 to be the Boleslavsky line.

Siempre pensaba que la línea Boleslavsky era 1.e4 c5 2.Cf3 d6 3.d4 cxd4 4.Cxd4 Cf6 5.Cc3 Cc6 6.Ae2 e5. I've always believed 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Be2 e5 to be the Boleslavsky line.

@Toscani said ^

https://lichess.org/opening/Sicilian_Defense_Scheveningen_Variation/e4_c5_Nf3_e6_d4_cxd4_Nxd4_Nf6_Nc3_d6
https://lichess.org/opening/Sicilian_Defense_Boleslavsky_Variation/e4_c5_Nf3_d6_d4_cxd4_Nxd4_Nf6_Nc3_Nc6_Be2_e5

As far as I can understand, the author knows this but claims that in Najdorf with 6.f4, Black can either go for the Scheveningen pawn structure with 6...e6, or for the Boleslavsky pawn structure with 6...e5. But to me the latter looks like a typical Najdorf pawn structure, as the knight typically goes to d7 rather than c6 and one can never reach f2-f4, Nd4-f3 in the "proper" Boleslavsky line.

@Toscani said [^](/forum/redirect/post/wOPSapJP) > https://lichess.org/opening/Sicilian_Defense_Scheveningen_Variation/e4_c5_Nf3_e6_d4_cxd4_Nxd4_Nf6_Nc3_d6 > https://lichess.org/opening/Sicilian_Defense_Boleslavsky_Variation/e4_c5_Nf3_d6_d4_cxd4_Nxd4_Nf6_Nc3_Nc6_Be2_e5 As far as I can understand, the author knows this but claims that in Najdorf with 6.f4, Black can either go for the Scheveningen pawn structure with 6...e6, or for the Boleslavsky pawn structure with 6...e5. But to me the latter looks like a typical Najdorf pawn structure, as the knight typically goes to d7 rather than c6 and one can never reach f2-f4, Nd4-f3 in the "proper" Boleslavsky line.