danibrear

function sudoku(puzzle) {
	if (solved(puzzle)) {
  	return puzzle;
  }
  var copy = puzzle.slice(0);
  for(var x=0;x<9; x++) {
    for(var y=0;y<9;y++) {
    	if (puzzle[x][y] !== 0) continue;
    	var available = get_available(puzzle, x,y);
      for(var i = 0; i < available.length;i++) {