Ignore the Blighted Stones
When looking for a tesuji, sometimes stones are so blighted that perhaps you could just ignore them. Of course, ignoring any stone leaves some chance of mistake; but I am just looking for an approximation, a way to find tesuji suggestions.
See also: Blighted Stones Have Little Use
Tapir: What to do with this page? Details matter, often getting some work out of blighted stones can be the whole purpose of a tesuji. Below an example which I had trouble to comprehend, but the blighted stone can make the difference between life and death.