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