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