Chess: Magnus Carlsen in Olympiad action as world No 1 targets record rating

3826: Grigory Palchun v Pavel Tregubov, Sochi 2015. Black to move and win. This was a blitz game, where Black had to decide on a choice by instinct. How do you compare? Photograph: The Guardian

Magnus Carlsen, newly retired from world title matches, is in Chennai this weekend for Friday’s opening round of the 186-nation Olympiad, where, due to Carlsen’s elevated rating, Norway are the No 3 seeds behind the US and India.

Round one Olympiad results (selected): India 4-0 Zimbabwe, Angola 0.5-3.5 US, Lebanon 0.5-3.5 Norway, Spain 4-0 Wales, England 4-0 Cyprus. Women: Tajikistan 0-4 India, Ukraine 4-0 South Africa, Iraq 0-4 Georgia, Libya 0-4 England. For full results, seechess-results.com. Gawain Jones won in 19 moves.