MOSCOW, October 15, 2018/PRNewswire/ -- Teachers challenged to develop creative teaching techniques with technology Global education technology provider, Promethean[®], has partnered with Sergey Karjakin, the world's youngest chess grandmaster, to launch the 'Promethean Grandmaster Challenge', a competition to find teachers who are innovative and creative in their ways of teaching chess. The competition opens on 15th October 2018 and closes at midnight on 10th December 2018. Now that chess has become a core part of the curriculum, it is more important now…