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