The first World Computer Chess Championship was held in 1974 in Stockholm. It was won by a computer named Kaissa, at the time rated around 1700.
At the end of the 1970s, computers reached the expert level (ELO 2000). And in 1977, in another World Computer Chess Championship -- this time in Toronto --, Kaissa found its match. It played against Duchess, and you'll have understood it by now, it is Duchess that won the game.
In the assistance were around 500 people, among which we could find computer-specialist IM Levy, and former World Champion GM Botvinnik. Rumor has it that nobody (or very few) had seen the variation that was played. But let's cut to the chase, and see what the fuss is all about.
At the end of the 1970s, computers reached the expert level (ELO 2000). And in 1977, in another World Computer Chess Championship -- this time in Toronto --, Kaissa found its match. It played against Duchess, and you'll have understood it by now, it is Duchess that won the game.
In the assistance were around 500 people, among which we could find computer-specialist IM Levy, and former World Champion GM Botvinnik. Rumor has it that nobody (or very few) had seen the variation that was played. But let's cut to the chase, and see what the fuss is all about.
Duchess - Kaissa, 1977, Toronto
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White to move
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To see the solution, just highlight the hidden text below.
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Solution:
1. Rxd6 Qxd6 2. Qa8+ Kg7 3. Qf8+!! Kxf8 4. Bh6+, and mate follows.
Of course, being a computer, Kaissa didn't resign nor move its king to g7; instead, it just played 2. ...Re8, and went on to lose the game, without much surprise there.
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