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