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