Coordinate X: Y: Search

90 60 90 61 90 62 90 63 90 64 90 65 90 66 90 67 90 68 90 69 90 70 90 71 90 72 90 73 90 74 90 75 90 76 90 77 90 78 90 79 90 80 90 81 90 82 90 83 90 84 90 85 90 86 90 87 90 88 90 89 90 90 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