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