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