00697nas a2200133   4500000000100000008004100001100002200042700001700064700002200081245004700103300001600150490000700166520039000173       2012                            d1 aJaroslaw Miszczak1 aPiotr Gawron1 aZbigniew Puchała00aQubit flip game on a Heisenberg spin chain  a1571–15830 v113 aWe study a quantum version of a penny flip game played using control parameters of the Hamiltonian in the Heisenberg model. Moreover, we extend this game by introducing auxiliary spins which can be used to alter the behaviour of the system. We show that a player aware of the complex structure of the system used to implement the game can use this knowledge to gain higher mean payoff.