London: Finally, Viswanathan Anand's series of draws ended in the fourth round of the London Chess Classic on Tuesday.  But the world champion would not savour the result as he lost to Hikaru Nakamura of US in a seemingly winning position and with that the Indian slipped to joint last position with two points.

This was certainly not the way Anand would have loved to end his draw-streak starting from the Tal tournament but then he might have been under pressure to come out of the 11-game run of draws that he started taking risks.

Hikaru Nakamura would take the result with both hands. He looked in bad shape in Kings Indian defence with black but things turned around for him after Anand misplaced his knight on move 29. For the next 20 moves, the Indian was in a shell as his kingside got blocked by his own pieces and black squeezed his position.

Luke McShane of England joined Magnus Carlsen of Norway in the lead after the fourth round with eight points each. The Englishman defeated compatriot David Howell while Carlsen tried something unusual against Vladimir Kramnik of Russia but got only a draw in the end.

Carlsen steered his Nimzo-Indian defence game to a double rook and opposite-coloured bishops middlegame against Kramnik who looked uncomfortable. But the Norwegian let Kramnik off the hook on his 25th move and the game drifted towards a draw in 55 moves.

Nigel Short, a regular feature in all the three London Chess Classics, recorded his first win in the tournament when he beat Michael Adams. Short got the initiative out of the French Tarrasch opening and never looked back. Interestingly, all the three wins in the fourth round were credited to black.

The tournament will re-start on Thursday after a rest day.

Results (Round 4):  V Anand (Ind, 2) lost to Hikaru Nakamura (USA, 7); Magnus Carlsen (Nor, 8) drew with Vladimir Kramnik (Rus, 5); David Howell (Eng, 2) lost to Luke McShane (Eng, 8); Michael Adams (Eng, 2) lost to Nigel Short (Eng, 3).