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