Professional foul stop the clock and get the ball back, rather than allow the opponent to run out the clock. In addition, there are specific rules governing obvious goal scoring opportunities called clear path fouls. The professional foul in rugby league embodies a similar concept to other sports, a deliberate breach of the rules in order to prevent a scoring opportunity. The penalty for this offence is 10 minutes in the sin bin. The majority of professional fouls are either holding down the tackled player after a break has been made in order to allow his teammates to reform in defence, interfering
First-move advantage in chess Kc3 ½–½ (After 34...Qd4+, White cannot escape the checks.) However, Georgiev and Kolev's pessimistic assessment of 6.Bg5 has since been called into question, as White succeeded with 10.e5 (another critical line) in several later high-level games. GM Zaven Andriasyan wrote in 2013 that after 10.f5, "a forced draw results", but that after 10.e5, "we reach a very sharp position, with mutual chances." Although it is very much a minority view, three prominent twentieth-century masters claimed that White's advantage should or may be decisive with best play. Weaver Adams, then one of the leading American masters, was the best-known proponent of