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