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