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