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Mamedyarov Won Bejing FIDE Grand Prix, Topalov Won the Grand Prix Series
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FIDE Grand Prix in Bejing, Round 10 Results
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Monday, 15 July 2013 |
Pogonina.com offers you a selection of some of the most informative chess tweets from last week. A digest of the most important chess news in one short post:
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Last Updated ( Monday, 15 July 2013 )
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Written by Administrator
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Sunday, 14 July 2013 |
Puzzle courtesy of Barry R. Clarke, columnist for The Daily Telegraph and international puzzle expert
In a wood-cutting factory, four large sawing machines stand in a windowless room. Each machine has an on/off switch attached, there being no doubt as to which switch controls which machine. Outside the door to the room are four back-up on/off switches, one for each machine inside. The power for each machine must first pass through the back-up switch, and then the machine switch before reaching the saw. The problem is, the new manager cannot decide how these back-up switches match with the machines inside the room. One day, the manager's brother visits. The manager takes him inside the sawing room where all four machines are at work and explains the problem. The brother announces that he intends to leave the room and that when he returns he will be able to match correctly the four switches outside the room to the four machines inside. The brother works alone, cannot see the machines from outside the room and solves the problem purely by operating switches. How is it possible?
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Last Updated ( Sunday, 14 July 2013 )
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FIDE Grand Prix in Bejing, Round 9 Results
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Greatest Female Chess Players. Tatiana Kosintseva
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FIDE on Chess Rating Inflation
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