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