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