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