After the game is over, no matter whether it was for a club championship or only a park bench struggle, the players replay it to see whether the winner should really have won or whether he was just lucky that his opponent failed to find a saving defense. When they get through, it often looks as though they had played a couple of dozen games, instead of just commenting on one. Indeed, after some tournament games the winner has suspected that his defeated opponent really needed the chance to show that he was the better player. It is important for chess players to show that they are right, because it is not like poker, backgammon or bridge, where there is no way to eliminate the last vestige of luck. They want to determine that they won on their own merits.
Perfection is hard to come by.
Mostly you have to be satisfied that you only played better than your antagonist and that you both performed on a level short of flawless. Earlier, it would have been thought extravagant to part with the bishop pair for so little in return. The doubled white f pawns are not vulnerable, though it is difficult to use them for attack. But in that same sequence, Gulko got his king bishop into its best location with 13 Bf3 and started seizing kingside space with 14 g4.