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