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