Here's the third puzzle, which like the first and second ones, is rated as easy.
As before, use your mouse to left-click to select numbers you're sure of, and right-click for numbers you think are possibles. Use the "Float Window" button to popup a new window which you can make bigger or smaller as you want.
The applet running here is from the ActivityWorkshop, and the numbers were generated using the free (GPL'd) software
Sudoku Sensei.
This example is coded as N1-059 which means only level 1 rules are needed to solve it, and it starts with 59
empty squares. Later puzzles will get harder, to give you a challenge once you've solved this one!