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