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Subject: Brains of Earth

Author: Frederic Friedel

Date: 03:03:38 02/04/00


John Nunn's endgame article is too long to post here. Apart from that you need
boldface and italics to be able to read the solutions properly. So I am only
posting the introduction. You will find the rest at

http://www.chessbase.com/puzzle/

-------------------------------------------------------

From ChessBase Magazine 71. Copyright John Nunn.

The “Brains of Earth” Challenge

An endgame test by John Nunn

The alien starship had been circling Earth for some days. Protected behind an
apparently invulnerable force shield, its gleaming surface had not even been
scratched by a small nuclear missile dispatched to test its defences.

Suddenly, a tightly-focussed message was picked up by the receivers mounted atop
the White House. The President and his advisors paled as they heard the alien's
first words, “Our mission is to test your race's fitness to join interstellar
civilisation.”

The President felt as if he were trapped in a B-Movie. Perhaps his noted
predecessor Ronald Reagan would have been more at home in this situation, but
the President found himself sweating profusely. The eyes of all his advisors and
generals were on him as he struggled to frame a suitable reply.

“What is the nature of this test?”

“You must send a single entity to champion your race and demonstrate your
fitness.”

“Single combat?”, queried the President.

“Not at all. The challenge is purely intellectual. He must solve some king and
pawn endings.”

The President looked confused. One of his advisors whispered “I think the alien
is referring to chess.”

“Chess!,” exploded the President, forgetting that his words would be instantly
beamed to the alien ship.

“Yes, we always choose a test from the candidate race's own cultural matrix.
There would be little point in testing you with the sand-grain games played by
the worm-things of Canopus IV, would there?” The voice hardened. “You have one
month to select your champion. This deadline is final.”

There was an ominous click as the link was broken. The President gulped, while
at the same time feeling a little relieved that the alien hadn't mentioned the
missile.

“What shall we do?”

After a short debate, the chief advisor said, “We are fortunate that the
starship's stealth capability makes it invisible to most detectors. The general
public are ignorant of its existence and we should keep it that way, or else
there will be panic.”

“If it is kept secret, how will we select our leading expert on, what was it,
king and queen endings,” replied the President.

“King and pawn endings, Mr President. We will create a test and publish it in
chess magazines. It will be treated as a piece of fun and no-one will guess the
deadly serious purpose behind it. We can select our champion based on the best
response.”

The President mused, “The alien said entity rather than human. Could we send a
computer – that Deep Throa t thing which won against the human champion,
perhaps?”

“Deep Blue, Mr President. Perhaps not that particular machine, as I understand
it is in retirement, but, yes, we could try something along those lines.”

“Well, set it up. Test the best humans and computers that you can lay your hands
on,” the President said decisively.

“I think the main problem is who should compose the test,” continued the
advisor. A minor aide tentatively cleared his throat. When everyone stared at
him, he continued falteringly, “I heard about a Dr No or None who wrote some
famous books on chess endgames. Perhaps he could do it.”

Relieved that someone else had volunteered to have the blame pinned on him if it
all went horribly wrong, the chief advisor said, “Well, get in touch with him
straight away. Ask him to come up with six test positions as soon as possible.”

A week later John Nunn had indeed selected six pawn endgame positions to test
the “Brains of the World”. They have been sent to chess magazines all over the
world for publication.

How to participate

If you want to take part in the “Brains of the World” challenge then you should
send in your solutions to the six positions given on the next page, together
with the time you spent on each of them.

Players with a rating of 2400 or higher should not make use of a computer but
try to solve the problems all by themselves. Others may use any computer and any
software, but they should specify what they used and how the programs helped.

Please note: when solving the six positions it is very important to make sure
that you find the best moves for Black as well as White. This is especially
critical in positions three and six, where Black's best reply to your first move
is not at all obvious. Please highlight the main line of your analysis to aid in
sifting through the solutions.

[Solutions and article on solvers at http://www.chessbase.com/puzzle/]



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