Long term strategy-Pawn structures
The pawn structure is the configuration of pawns on the chessboard. Since pawns are the least mobile of the chess pieces, the pawn structure is relatively static and thus largely determines the strategic nature of the position.
Structures with mutually attacking pawns are said to have tension. They are ordinarily unstable and tend to transpose into a stable formation with a pawn push or exchange. Here are a few examples:
Double pawns:
Weak pawn (c7)
Try out our positional puzzles: Black to move
Solution: