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