%0 Journal Article %T Infinite games with uncertain moves %A Nicholas Asher %A Soumya Paul %J Electronic Proceedings in Theoretical Computer Science %D 2013 %I Open Publishing Association %R 10.4204/eptcs.112.7 %X We study infinite two-player games where one of the players is unsure about the set of moves available to the other player. In particular, the set of moves of the other player is a strict superset of what she assumes it to be. We explore what happens to sets in various levels of the Borel hierarchy under such a situation. We show that the sets at every alternate level of the hierarchy jump to the next higher level. %U http://arxiv.org/pdf/1303.0788v1