Firstly click any key, which will reveal all of the world's countries excluding the nations containing the letter H. Then, enter all the countries which contain the letter H.
any countries too small for the map don't appear
no dots this time, as requested by quizzer and scambi
Hit "Start". Then, hit any letter - which will show all the countries without an H in them. Finally, you have to enter all the countries that do contain H. If you get them all, you'll get to 196!