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