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