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