p.219 "Over the last 30 years, approximately 10,000 individuals
from all over the world have participated in writing chess programs."
p.220"To write a chess program requires a great burst of energy
and concentration for a 2 or 3 month period. It is necessary to fit together many pieces of a large electronic puzzle that
can never be entirely visualized. Addiction sets in soon after the first game is played, and while the suicidal pace of the
first few months cannot be kept up, the programmer maintains a high level of energy and concentration for many years to come
as the program gradually improves."
p.221"Chess programs have been developed by individuals working
alone, although more frequently they are the result of a group effort with one dominant leader. The team, no matter what the
size, needs a programming whiz. Every program that has won the world championship has been a team effort with at least one
programming whiz... A strong chess player is also important to a team, but not as crucial as a programming whiz."
p.222"Most of the time spent developing a chess program is spent
testing and debugging. Endless hours are consumed playing games with the program, hunting for bugs and looking for ways to
improve play."