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