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