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