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