S1: We were so evenly matched that for a time the end was difficult to tell.
S6: Then his comrade's knife, thrown at me, struck him on the back and, piercing it, quite finished him.
P: Already I was counting him a dead man and myself victorious.
Q: I had only to wear him out to have him at my mercy.
R: Presently, however, there came a change.
S: My opponent's wild living made him incapable of coping with a prolonged bout and his strength seemed to start ebbing away.
The proper sequence should be: