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