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