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