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