Sentence 1: John thought he was the best checkers player in the world. 
 Sentence 3: John accepted the challenge and played the young child 
 Sentence 4:  After a nail biting game, the young child was one move from winning 
 Sentence 5:  In frustration John flipped the board and quit the tournament 
 Option 1: At a tournament a young child challenged him. 
 Option 2: He said he would pay $100 to anyone who could beat him so a woman took the challenge and beat him.