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