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