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