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