Sentence 1: Two friends were in a heated game of checkers. 
 Sentence 3: The game became very one-sided 
 Sentence 4:  The losing friend got mad and knocked the board over 
 Sentence 5:  The winner let out a victory yell at this sight 
 Option 1: One friend made a few kings and the other didn't. 
 Option 2: The game ended in a deadlock.