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