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