step - 1

Game.kt

fun play(first: Throw, second: Throw): Winner {
    if (first == second) {
        return TIE
    }
    if (first == SCISSORS && second != ROCK ||
            first == PAPER && second != SCISSORS ||
            first == ROCK && second != PAPER) {
        return FIRST_PLAYER
    }
    return SECOND_PLAYER
}