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