Mario's Picross/Strategies

Hints

 * If you know a square should be left blank, mark it with an "x" before you forget. Doing so adds more information, and you can gradually determine which squares should be scraped.
 * The more squares you manage to scrape successfully, and the more "x"s you mark off, the more information you have to compare against other clues.
 * Try and solve the rows and columns that have the largest number of squares to be scraped. For example, on a 10x10 board, a 10 means all the squares must be scraped, while a 0 means all the squares must be blank.