Quadrata put up 1 and 2 on the assassin site and his blogspot.
I like these, the high-low boundary is well chosen, and 2 and 3 as the differences is probably most interesting.
Unlike Quadrata I cannot draw trapezoids, and cannot see them clearly, so I've used red for high and green for low as with the meandoku before.
So:
Green means the product of the two adjacent numbers is less than 23, red means it is greater than 23.
If there is a number it is the difference between the two adjacent numbers. In this iteration no number means the difference is not 2 or 3.
Trapizoid 3 NC
miss-spelling deliberate
Also non-consecutive
This eliminates the single difference so makes the un-numbered squares more informative.
Trapizoid 4
Trapizoid 5 NC
also non-consecutive
