http://www.sudokumadness.com/syndication/popular_puzzles/format/rss Links to the current top 10 most popular puzzles at Sudoku Madness Sudoku Madness Puzzle #2250 http://www.sudokumadness.com/play/choose/2250 Sudoku Madness Puzzle #3510 http://www.sudokumadness.com/play/choose/3510 Sudoku Madness Puzzle #4 http://www.sudokumadness.com/play/choose/4 Sudoku Madness Puzzle #4896 http://www.sudokumadness.com/play/choose/4896 Sudoku Madness Puzzle #2226 http://www.sudokumadness.com/play/choose/2226 Sudoku Madness Puzzle #10384 http://www.sudokumadness.com/play/choose/10384 Sudoku Madness Puzzle #4499 http://www.sudokumadness.com/play/choose/4499 Sudoku Madness Puzzle #1262 http://www.sudokumadness.com/play/choose/1262 Sudoku Madness Puzzle #9143 http://www.sudokumadness.com/play/choose/9143 Sudoku Madness Puzzle #4541 http://www.sudokumadness.com/play/choose/4541