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