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