LargeMaze.hs

maze :: Integer -> Integer -> Integer
maze x y
  | abs x > 10 || abs y > 10    = 0
  | x == 0 && y == 0            = 2
  | abs x == 9 && abs y == 9    = 1
  | abs x == 10 || abs y == 10  = 1
  | x == y                      = 3
  | abs x == abs y              = 4
  | x < 0 && x > (-9) && y == 0 = 4
  | x > 0 && x < 9 && y == 0    = 3
  | otherwise                   = 2