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