Game Oẳn tù tì :p

Mình bị lỗi logic trong đoạn code này, mọi người xem hộ là lỗi gì nhé :D, Bí quá:
Đây là trò chơi Oẳn tù tì; qui ước: Búa = ‘b’; Bao = ‘o’: Kéo = ‘k’
Mình có cmt bên cạnh nhé

#include <iostream>

using namespace std;

char Player_1;
char Player_2;


int main()
{
	cout << "(Play 1) press: ";	
	cin >>  Player_1;				// Character Player 1 (Pl1)  press in (b, o ,k)
	cout << endl;

	cout << "(Play 2) press: ";
	cin >>  Player_2;				// Character Player 2 (Pl2)  press in (b, o ,k)
	cout << endl;

	//---------------------------------------------------------------------------------------------------

	if(Player_1 = Player_2)									// If both Char same, compile will put out the Line "EVEN - Game OVER"
	{
		cout << "EVEN _ GAMe OVER" << endl;					
	}
	else if(Player_1 = 'o')									//If Pl1 press 'o', Pl2 press 'k'
	{
		if(Player_2 = 'k')
		{
			cout << "Player 2 win, PLayer 1 lozz" << endl;
		}
		else if(Player_2 = 'b')								//If Pl1 press 'o', Pl2 press 'b'
		{
			cout << "PLayer 1 win, PLayer 2 lozz"<< endl;
		}

	}	
	else if(Player_1 = 'k')									//If Pl1 press 'k', Pl2 press 'o'
	{
		if(Player_2 = 'o')
		{
			cout << "Player 1 win, PLayer 2 lozz" << endl;
		}
		else if(Player_2 = 'b')								//If Pl1 press 'k', Pl2 press 'b'
		{
			cout << "PLayer 2 win, PLayer 1 lozz"<< endl;
		}

	}
	else if(Player_1 = 'b')									//If Pl1 press 'b', Pl2 press 'o'
	{
		if(Player_2 = 'o')
		{
			cout << "Player 2 win, PLayer 1 lozz" << endl;
		}
		else if(Player_2 = 'k')								//If Pl1 press 'b', Pl2 press 'o'
		{
			cout << "PLayer 1 win, PLayer 2 lozz"<< endl;
		}
	}

	system("pause");
	return 0;
}