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