Piece Sac to Mobilize Two Center Pawns

ChessIsMyWife is a low rated, very aggressive United Sates player who loves playing at the internet chess club. He is equally enamored with the King's Indian Defense.

Any serious KI chess player is acutely aware of the weak d-pawn that helps keep his d6,e5,f4 pawn chain intact while he organizes a pawn storming King side attack. It is also well known that if White can crash through on the Queen side, Black's King's field can become a bit breezy if not indefensibly weak.

In the diagrammed position, Black is guarding his d6 pawn with Queen, Knight at e8, and Bishop at f8.

White recognizing the long term benefit of the center pawn duo, sacrificed his b2 Bishop at e5. After the c4 Knight recaptures the capturing pawn at e5 with a tempo on the f7 Rook, White can slowly prepare the steamrolling effect of his d and e  pawns.

The well known dictum of a secure, locked center being a necessary precursor for a flank attack is exploited in the first player's favor with this piece sacrifice. Note that White would likely not capture the poorly placed Rook if Black chose not to move it although the beautifully placed e5 Knight might want to get out of the way of the e4 pawn lusting to expand. Johathan Rowson, I am sure would have a humorous conversation with his obstructive steed to see if Horse agreed.

Rowson wrote,perhaps, the most seminal chess psychology book in our game's voluminous body of literature. He spoke of the circular motion of the Knight conjoined with the linear motions of the other pieces. The Scottish GM illustrated the value of gumption and the perils of over thinking and wasting time being overly concerned about the outcome of the game.