What we're looking for are lines, sharp variations in light values that shouldn't be there.
The state report also highlighted the sharp variations in job hunting success within the New York region.
The Four Knights usually leads to quiet positional play, though there are some sharp variations.
During the last few years there has been growing concern over the effects of sharp regional variations in house prices on the mobility of labour.
The large number of executions in Texas is part of a sharp regional variation.
It avoids the sharpest variations, delaying the main battle.
But when it came to which New Yorkers were happy, the poll found sharp variations among residents.
There are also sharp variations among cities about how pass prices are set.
In many states, local school districts showed sharp variations in spending per pupil.
Anand's victory in Game 5 featured a new idea in a sharp variation.