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