Coordinate X: Y: Search

77 20 77 21 77 22 77 23 77 24 77 25 77 26 77 27 77 28 77 29 77 30 77 31 77 32 77 33 77 34 77 35 77 36 77 37 77 38 77 39 77 40 77 41 77 42 77 43 77 44 77 45 77 46 77 47 77 48 77 49 77 50 1989 1988 1987 1986 1985 1984 1983 1982 1981 1980 1979 1978 1977 1976 1975 1974

= Free Coordinate    = Occupied(Single Region)     = Occupied (Var Region)     = Center of the grid