So there are those 2 answers, but there are tons of other answers.
For example on a standard chessboard, if a black pawn is present on H4, there are no less than 143 solutions. And there are still other answers, when a white pawn is present on H4.
The question isn't about creating a configure, but counting them all.
Here is a hard problem that 99% of people here will get to answer it in 5 minutes.
"There is an 8x8 chessboard. 32 black pawns and 32 white pawns are to be placed on the board such that no pawn can capture another of the opposite color. Assume that no pawn is promoted, and the rules for the pawns to capture another piece is otherwise in power (i.e. except the promotion rule all other rules concerning the pawn is still used), find the number of ways to place the 64 pawns. (Note that we cannot turn the chessboard)
I was in love with maths only after I was 25, when I got I stable job I start thinking of other things to do.
Anyway @bobbym I'll be away to Bulgaria and France from June 29 - July 10 without being able to bring the computer so I'm not likely to visit the forum during the mean time.
+ What is a microstate? (a small independent state recognized by other states universally)
+ What are the ten smallest countries in Europe by land area? (Vatican. Monaco, San Marino, Liechtenstein, Malta, Andorra, Luxembourg, Cyprus, Montenegro, Slovennia)
+ What are the ten smallest countries in Europe by population? (Vatican, Monaco, San Marino, Liechtenstein, Andorra, Iceland, Malta, Luxembourg, Montengro, Cyprus)
So, in the above 2 lists, 9 of them are the same. The only difference is Slovennia/Iceland (in fact Slovennia ranks 12th in population but Iceland ranks 33th, way larger than most countries, though here we don't take territories outside Europe into account so Denmark is smaller than Iceland). But Slovennia is never considered a microstate, though Iceland does.
Vatican, Monaco, San Marino, Liechtenstein and Andorra are for now considered obvious, for their unique history has led to their independence today.
+ Vatican is the ruins of the former larger Papal States of Middle Italy
+ Monaco is a small principality independent since at least 1419, the purchase of Monaco by the House of Grimaldi
+ San Marino has been independent since 301
+ Liechtenstein, lying between Switzerland and Austro-Hungary, is the last surviving member of the Holy Roman Empire (Luxembourg was independent because at the time of German Unification it was ruled by the Dutch king)
+ Andorra has been a co-principality since 1278
The other 5 countries are not irregularities of history - Malta and Cyprus was small because it was islandic, the former Kingdom of Montenegro hold significant powers around the time of the Balkan War in the early 20th century, Luxembourg was always important in Europe since it abandoned neutral policy in 1948, and Iceland was small because of its cold climate. Also the original 5 has always been reluctant to joining organizations, the only exceptions so far have been the UN, WTO, Council of Europe and a few others (in the case of the Vatican, there is no exception at all). However Malta and Cyprus are both members of the EU, Montenegro a candidate of EU and NATO, and Iceland NATO member and EU candidate (Nordic Council is a small regional organisation and excluded), of course Luxembourg member of both.
So in my view there's only 5. What about you?