The incredible repetition of moves is interesting Andersson vs Tal, 1983  (D55) Queen's Gambit Declined, 51 moves, 1-0 Potter knocks down poor opponent after a Queen sacrifice. W Potter vs Matthews, 1868  (C21) Center Game, 13 moves, 1-0 9.Nxe5!! is a stunning play Granda Zuniga vs Seirawan, 1993  (A15) English, 56 moves, 1-0 3 games