Your goal is to find the secret four-color code. The following colors are possible: red, black, brown, blue, purple, yellow.
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', 'red', 'purple', 'yellow']. Hint: four colors are in the secret code but in the wrong positions.
Guess: ['red', 'red', 'red', 'blue']. Hint: two colors are in the correct positions.
Guess: ['red', 'purple', 'yellow', 'blue']. 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
brown, purple, red, brown red, red, brown, red purple, yellow, red, blue yellow, yellow, brown, blue