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