Example 2

This is an example of applying the Light Chasing algorithm. In this case, the puzzle is not solved after the first run through. In fact this example is awful, since it takes longer than 10 moves over the minimum to solve, but it illustrates the method well

	This is where we start. We see that all the lights in the top row are on, so we should press all the buttons on the second row.
	Now we have lights 1 and 5 on the second row lit. Therefore we should push buttons 1 and 5 on the third row.
	This time we want to push buttons 1,2,4 and 5 on the fourth row.
	And the next step is to press all the buttons on the bottom row. Up to now we've made 16 moves.
	Now we've reached the bottom. It's time to look up the table (click here if you need a refresher). We can see that with this configuration on the bottom row, we should press buttons 1 and 2 on the first row.
	Now we chase the lights again. Press button 3 on row 2.
	And next, press buttons 1,3 and 4 on row 3. Getting the hang of this yet?
	Press buttons 1,3 and 5 on row 4. We're nearly there!
	And we're really nearly there! Just buttons 4 and 5 on the bottom row to go...
	And thats it. Finished!. In all that took 27 moves. The minimum required for this puzzle is 15. So we're more than 10 over!