Pedro Proença the match between Spain and the Republic of Ireland, in which he pushed Keith Andrews over by accident. On 29 June 2012, UEFA announced that he would referee the final between the Spain and Italy, thus becoming the first Portuguese to referee a European Championship final. Like Howard Webb, who refereed the 2010 FIFA World Cup Final, he also refereed the Champions League final in the same year as taking charge of the final of a major international tournament. He has been selected by FIFA to participate in the 2014 FIFA World Cup in Brazil. On 22 January 2015, Proença
Quantum refereed game refereed game consists of an n-turn referee along with functions formula_17 that maps each measurement output formula_18 to Alice's and Bob's pay-off. Individual quantum refereed games may place specific restrictions on strategies Alice and Bob can choose from. For example, in nonlocal games and pseudo-telepathy games, Alice and Bob are allowed to share entanglement but are forbidden from communicating. In general, such restrictions may not apply in quantum refereed games. Similar to a classical zero-sum game, a zero-sum quantum refereed game is a quantum refereed game with the additional constraint formula_19. It is natural to assume Alice and Bob play