1e4c52Nc3...This signals the start of the Grand Prix attack or the closed King Indians Attack setup.2.f4?!d53.exd5Nf64.Nc3e65.dxe6Bxe63.e5Nc64.Nf3Bf55.d3e66.Nbd2Nge77.Nh4Bg68.Nxg6hxg62...Nc63f4g64Nf3Bg75Bb5...We are ready to part with the light squared Bishop for the knight. After we play d3, that Bishop would have been the "bad" Bishop and in most times, it will only get in our way.5...Nd45...d65...e6?6.Bxc6bxc67.e56O-ONxb56...Nxf3+7.Qxf37Nxb5d57...d68exd5a68...Qxd5??9.Nc7+9Nc3Nf610d4Nxd511dxc5Nxc312Qxd8+Kxd813bxc3Bxc314Rb1