Professional foul Professional foul In various sports, a professional foul is a deliberate act of foul play intended to bring about an advantage for the perpetrator's team. Professional fouls are usually committed to prevent an opponent from scoring. In association football, a professional foul involves a defender fouling an attacking player in order to prevent them from scoring, or a handball offence that denied an obvious goal-scoring opportunity. The resulting free kick or penalty may offer the attacking team a lower chance of scoring than the original playing position, and the defending player therefore has an incentive to tactically foul the attacking
First-move advantage in chess first move is of little worth". Steinitz, the first World Champion, who is widely considered the father of modern chess, wrote in 1889, "It is now conceded by all experts that by proper play on both sides the legitimate issue of a game ought to be a draw." Lasker and Capablanca, the second and third World Champions, agreed. Reuben Fine, one of the world's leading players from 1936 to 1951, wrote that White's opening advantage is too intangible to be sufficient for a win without an error by Black. The view that a game of chess should end in a