FV-pento-sudoku challenge
	
	
	As we want to be part of the latest rage, but foremost because we are 
	addicted ourselves, our new challenge is a sudoku.
	With lots of thanks to Aad van de Wetering.
	If you want to 
	practice a bit with
	
	5x5 sudokus you can click
	
	here or you take 
	the site of 
	Bob Harris.
	First we had to select a suitable 10x10 field.
	We chose this one:
	
	It is the only tiling of a square with 10 F and 10 V pentominos and in 
	addition it has a rotational symmetry.
	So, each area (in the same colour) that must hold the digits 0 to 9 is 
	formed by one F and one V pento.
	
	In the above 
	square, in each field put one of the digits 0 to 9. In every row, in every 
	column, and in every decamino, use each of the digits 0 to 9 exactly once. 
	Nineteen numbers have been filled in already, these are not to be changed, 
	of course.
	
	
	We 
	usually use Excel for finding the solutions. We have already prepared a
	
	file that contains our challenge.
	
	If 
	you think our sudoku is easy, you can always try to solve a Ukodus+ on
	
	
	Aad's site.
	
	http://home.wxs.nl/~avdw3b/ukodus.html