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