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