12.g4...a winning idea. White pawn gets to f5 andBlack's g7-pawn becomes a serious target.12....Nfe713.f5+Kf714.Rh1Kg814...g615.g6...now, Black is hopeless.15....d416.Rh7Nd517.g5Nd818.Bd6Nc619.Bf8...The most elegant and the easiest solution.19....Kxf820.Rh8+Ke721.Rxa8Kd622.f6gxf623.g7Nce724.Rxa6+without waiting for 25. gxf6,Black resigned.