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