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