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