It was in May of that year, in New York, that he lost a six-game chess match to IBM's Deep Blue, the most powerful chess computer of its day. Today, it seems obvious Kasparov should have lost.

In 1997 the world chess champion Garry Kasparov was beaten by an IBM computer system called Deep Blue. It had defied all expectations, exploring some 300 million possible moves in one second.

This week marks 29 years since an epic man versus machine battle. It's when IBM's supercomputer, Deep Blue, beat Garry Kasparov, the world's best chess player, in 37 moves. Kasparov eventually ...

In 1996 a computer called Deep Blue beat Garry Kasparov in a game of chess; the first time a machine defeated a reigning world chess champion.