Mastermind!

[Firebird]

Okay let's start it yet another time

Guess 1: 3 4 5 1 (O), (O), ( ), ( )
Guess 2: 6 4 7 1 (O), (O), ( ), ( )
Guess 3: 2 2 1 4 (X), ( ), ( ), ( )
Guess 4: 3 6 7 5 (O), (X), ( ), ( )
Guess 5: 2 7 3 5 (X), ( ), ( ), ( )
Guess 6: 6 3 7 5 (O), (X), ( ), ( )
Guess 7: 6 4 5 4 (O), (O), ( ), ( )
Guess 8: 6 1 5 1 (O), (O), (O), ( )
Guess 9: 6 6 5 1 (O), (O), (O), (O)
Guess 10: ( ), ( ), ( ), ( )

Winner: Sniper-Man