Your goal is to find the secret four-color code. The following colors are possible: purple, pink, red, blue, yellow, brown.
Some guesses have already been made. I will provide feedback for each guess made with which it is possible to unambigiously determine the secret code.

Previous Guesses:
Guess: ['yellow', 'brown', 'pink', 'red']. Hint: four colors are in the secret code but in the wrong positions.
Guess: ['purple', 'pink', 'red', 'brown']. Hint: one color is in the correct position and two colors are in the secret code but in the wrong position.
Guess: ['purple', 'pink', 'red', 'pink']. Hint: two colors are in the secret code but in the wrong positions.
A B C D
pink, red, yellow, brown yellow, brown, yellow, red brown, blue, yellow, blue purple, brown, yellow, purple