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