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