Allfactor 1.0
llfactor is a puzzle that requires a combination of memory, logic and luck to solve.
Simple to understand but can hard to crack.
Place diagonal lines on a grid at the right position.
Count vertically, for each column, the number of intersections of these diagonal lines.
Get these column totals to match a target set of totals and you have won!
The basic theory behind the puzzle is finding the factors of a semi-prime number?