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