00723nas a2200157   4500000000100000000000100001000000100002008004100003100002200044700001700066700002200083245004700105300001600152490000700168520039000175       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.