Sicilian Scheveningen Part V (Classical Variation)

10 a4



White makes it difficult for Black to play ... b5.
He also gains space on the queenside. However,
b4 is now very much open to Black's pieces.

10 a3
10 f5
10 g4
10 Bd3
10 Be3
10 Bf3
10 Qd3
10 Qe1
10 Rb1
10 Rf3

10 ... Nc6



Further keeping e4-e5 in check and challenging
White's control of d4. The knight also has its
eyes on b4, obviously.

10 ... b6
10 ... h6
10 ... Bd7
10 ... Kh8
10 ... Nbd7
10 ... Nfd7
10 ... Rd8
10 ... Re8