Continued from King’s Indian Defense.
Effective castling is now impossible for White because he will soon find himself on the defensive, trying to stay even in point totals and center position with Black. White must protect the King by playing the king’s Bishop to e2. Black now responds with an attack by pushing the black bishop’s Pawn to c5. White then moves his threatened Pawn to d5. Black responds by pushing the King’s Pawn to e6. White clearly sees the threat to his King. The only defensive option White has to protect his King and to eventually castle is to move the king’s Knight to f3.
Now, Black starts the attack by capturing the white Pawn at d5. White will naturally respond by capturing the black Pawn, but Black will continue the drive by posting the black knight’s Pawn to b5. The King’s Indian Defense has transferred the momentum definitely to Black. Black’s Queen, queen’s Bishop and Knight can attack freely. The Black King is safely castled. The most fruitful avenue of attack is the black diagonal that ends at g1. The only piece on the diagonal is currently a black Pawn. More importantly the black Queen can be posted at b6 to set up a permanent threat to any attempted King castle by White.
This strong Black advantage is gained by ignoring the classic mirroring play often seen from Black in the initial moves in a match between relative beginners. Practice and learn the Kings’ Indian Defense. When White opens with a Queen Pawn move, counter with the King’s Indian Defense. White will often fall into the trap by aggressively playing for center board position and ignoring his King side castle option. At the eighth and ninth moves of the match the Black pawns will assert power over center board and shift the momentum to Black for a satisfying checkmate.