The Elo System(used by the United States Chess Federation, FIDE, and many other online chess sites) is popular for two reason - it has been around for a long time, and it is simple. The idea is this: given two chess players of different strengths, we should be able to calculate the...
GM Daniil Dubov, who is slightly higher on the rating list (2647). The hidden assistant was Stas Romanov, a candidate master rated 2100, who followed the action via closed circuit video and used a notebook to calculate key moves. These were transmitted to Tkachiev's earpiece via radio. S...
You can bank on Surya to calculate the details accurately. dxc4 17...Nxa2 18.Qxd5 Qxd5 19.Bxd5 Nec3 20.Rxc3 Nxc3 21.Bxa8 Rxa8 22.Ra1 White is just a pawn up. 18.Qxd8 Rfxd8 19.Rxc4 Nxa2 20.Rxe4 Bxf3 This is natural as it gives White a ruined structure, but it also ...
brute memorization. Playing over the first move , back up, play two moves, back up. And so on. If I mess up, then I go all the way back and continue starting on the one I messed up on. When I reach the end, I do the whole variation 5 times. If I mess up, it goes to 6...