1. Start a new game.
2. Select "Expert", so you will have all objects available.
3. Place the objects on the level. Press play.
4. Did it fail? Damn! If this is level 1, restart the game (step 1 of this guide). Otherwise, go back to the main menu and load your save. Or, if you are tired of this level, just complete it regardless of the numbers of tries (the 10 levels don't need to be consecutive).
5. Have you managed to complete it in the first try? Awesome! Now press "Next" to load the next level.
6. After the loading screen, press "Menu" at the first screen of the new level, even before you start playing it. Save your game now.
7. Press "Resume", then go back to step 3. Rinse, repeat.

If you save at different moments, the game may count additional tries; so play safe and only save at that specific screen.