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