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mctrivia: I see no reason why player 1 could not see their own results before player 2 moves - BUT I like it how it is now where player 2 DOES NOT see player 1's move until both players move.
As player 2, if I could see player 1's result before I had to guess - that information could change how I guess - that is normally I take the first few moves to figure out the colors before I start to make guesses - but if I see my opponent almost get my code, or worse - has the correct code - I would then start making more wild guesses in the chance of getting lucky. So player 2 knowing what player 1 guesses can effect how player 2 plays.
But I see no harm in player 1 knowing themselves how their guess was.