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