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