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