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