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