Your goal is to find the secret four-color code. The following colors are possible: blue, green, brown, white, pink, 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: ['green', 'red', 'blue', 'pink']. Hint: two colors are in the correct positions.
Guess: ['blue', 'blue', 'pink', 'pink']. Hint: none of the guessed colors are present in the secret code.
Guess: ['brown', 'brown', 'green', 'green']. Hint: two colors are in the secret code but in the wrong positions.
Guess: ['green', 'red', 'brown', 'white']. Hint: two colors are in the correct positions and two colors are in the secret code but in the wrong positions.
A B C D
white, blue, green, blue green, white, blue, pink green, red, white, brown blue, green, white, red