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