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