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