Sokolsky/Polish Opening (1.b4) - Czech Defense

>>Main article: Sokolsky/Polish Opening (1.b4). Basic Opening Theory.<<

The following diagram displays the initial set-up of the Czech Defense in the Sokolsky opening:

Black avoids the Exchange variation (2... Bxb4) and chooses a flexible and leisurely system. Instead of committing himself with 2... f6, Black defenses the e5 pawn with 2... d6.

Depending on Black's third move Classical Theory singles out two main continuations both of which give Black the counterplay on the kingside:

I. 3... f5:

White has gained more space on the queenside and exerts pressure on the center. Black has chances on the kingside. 

II. 3... Nf6:

After 8... e4 (or 8... exd4 9. Nxd4) 9. Nd2 d5 10. b5 White has good chances in the center and on the queenside. 

>>Main article: Sokolsky/Polish Opening (1.b4). Basic Opening Theory.<<

More about the Sokolsky:
Exchange variation
Outflank Variation
Main Line
Baltic Defense
King's Indian Variation
German Defense
Ware Defense
Bugayev Advance Variation
Sokolsky Gambit (Accepted)
Sokolsky Gambit (Declined)
Queen's Indian Variation
Dutch Defense
Advance Variation
Birmingham Gambit
Symmetrical Variation
Grigorian Variation