Walter Montego: Nicely done....! Great Pawn wall.... If you don't do any mistake Smirf can't do nothing to penetrate....
Yet this wall you created, corresponds to a drawish plan, while although i also create closed positions, they are for attacking purposes and only to win. Of course as you said you made a mistake giving some material. But in fact when you play with this system for a draw it's good to give a Rook for a Bishop since Rooks are totally incapable of penetrating in that kind of positions due to their lack of diagonal play.....