Your goal is to find the secret four-color code. The following colors are possible: black, purple, brown, red, blue, pink.
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: ['red', 'purple', 'blue', 'black']. Hint: one color is in the correct position and two colors are in the secret code but in the wrong position.
Guess: ['black', 'purple', 'purple', 'brown']. Hint: two colors are in the correct positions and one color is in the secret code but in the wrong positions.
Guess: ['black', 'purple', 'brown', 'red']. Hint: four colors are in the secret code but in the wrong positions.
A B C D
red, black, purple, brown pink, blue, blue, brown blue, blue, red, purple brown, black, brown, black