Coordinate X: Y: Search

72 10 72 11 72 12 72 13 72 14 72 15 72 16 72 17 72 18 72 19 72 20 72 21 72 22 72 23 72 24 72 25 72 26 72 27 72 28 72 29 72 30 72 31 72 32 72 33 72 34 72 35 72 36 72 37 72 38 72 39 72 40 1939 1938 1937 1936 1935 1934 1933 1932 1931 1930 1929 1928 1927 1926 1925 1924

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