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