  We study the possibility of reversing an action of a quantum channel. Our
principal objective is to find a specific channel that reverses as accurately
as possible an action of a given quantum channel. To achieve this goal we use
semidefinite programming. We show the benefits of our method using the quantum
pseudo-telepathy Magic Square game with noise. Our strategy is to move the
pseudo-telepathy region to higher noise values. We show that it is possible to
reverse the action of a noise channel using semidefinite programming.
