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