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