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