www.argio-logic.net

here a sample of sudoku XV

red= V
blue = X
in the flash interface i will put X and V in substitution of colors

I would like to know your opinion about the difficulty to have some guidance on the genaration of new grids

What do the 'X' and 'V' represent in this type of sudoku?

X means the sum of adjacent cells is 10 and V means the sum of adjacent cells is 5

here the flash