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