It appears that the grammar, that is the plural of kudos, is presenting more problems than the maths of the original problem. I see further headaches on the way, but now we know that a brandy is an excellent cure for headache.

In fact, I always keep a supply of brandy handy (it even rhymes) in case I get a headache from a maths problem - which I also keep handy.

And now, I give my solution to the original problem – prepare for more headaches!

I remind that we want to know where the extra (65th) square came from. Well, consider the following related problem.

You will notice that this time there is a square missing or disappearing. Well, this square that disappears from here should be the extra square appearing in the 1st problem. This is an example of the “Principle of preservation of squares”.

And this way we’ve solved 2 problems in one go. The principle in operation this time is:

**If you can’t solve a problem, create another one.** *(bobcat)*
Now, where is that brandy again?