The same is true in Boxing. Good fighters find a way to beat most fighters but never win the big one. Great fighters win the big fights. Ken Norton was a good fighter but in the big fights, he came up short against the great fighters like Ali, Foreman and Holmes. He could beat most of the better fighters but in the big moments, he fail to produced. When he needed to close the show in the 15th round in his third fight with Ali, he allowed Ali to dance around and steal the round. He felt he won but Ali knew never leave anything at the table. Foreman grinded Norton into the ground in less than two rounds. The Grand Masters defeated the Master.

Chess Proverb Five: "The beauty of chess is that there is no such thing as best move (most of the time), there is only the good move."

Mike Moorer danced and moved around George Foreman all night and was easily winning the fight going into the tenth round. You could argue that Moorer throughout most of the fight made many right moves. Until the end, when Foreman nailed Moorer with the perfect right hand. He made the right move at the right time to win the bout. Or maybe it was a case of a Grand master beating a master.

Chess Proverb Six "Chess requires lots of calculations...if you have the feel the game you can go far."

Chess champ observed and in boxing, it is similar. Before every fight, each boxer must go through his strategy and calculate his game plan. Great boxers, however, have instinct for the sport. They know when to punch and when to move whereas lesser fighters make the wrong move at wrong time. Or lesser fighters hesitate when they should punch.
Bernard Hopkins knew when to move and when to punch when he defeated Howard Eastman for his 20th title defense. Eastman made a lot of moves but they rarely scored. Hopkins moved sparely but effectively. That is why he won. His instinct was superior to his opponent.

Boxing is a sport that artistry in the ring is matched by its brutality. It is a sport that is both complex and simple. You hit the other guy before he hits you. That is the simple. The complex is how you do it. When to move and when to box, that is the complexity.