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