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