New Delhi: Krishnan Sasikiran scored a third successive win and in the process avenged his recent loss at the hands of Parimarjan Negi in the inaugural Airports Authority of India (AAI) grandmasters chess tournament here Sunday.

In another game, women's World champion Hou Yifan got her first points through a draw against Filipino Wesley So in 52 moves.

The third game between Fabiano Caruana and Viktor Laznicka, which began in the Caro-Kann Advanced Variation, also ended in a draw in 59 moves. It was the first time a round had produced two draws. Overall only four games out of 15 have ended in draws in the first five days.

Caruana leads with four points while Laznicka is second with 3.5 points. Sunday's win with black for Sasikiran from a Ruy Lopez in 56 moves brought him to three points and that must seem a big relief after two losses at the start. Wesley So has 2.5 points, Negi 1.5 and Hou Yifan has half a point.

Asked if he was relieved with three lout of five in the first half, Sasikiran said: 'No doubt about that. It felt good to come back at fifty per cent after the two wins and now I am plus one.'

For both Sasikiran and Negi, the tournament has been bitter-sweet. The game against Negi may well have been Sasikiran's first in the past week but Negi in most of his games in the ongoing tournament has begun well only to be found wanting in the middle game.

'I agree there were no major errors from my side, but I would still be happier if I can play higher quality chess than what has been seen so far. Hopefully, in the second half I will get to do that also. My today's aim was to stay clear of time trouble and I think I managed that.'

In a Ruy Lopez Closed with Breyer Variation, Negi was again fine in the opening and in fact was actually better positionally. But once again he went awry in the middle game. This time, he attempted to go for Saskiran's a6 pawn with Qe2 on the 29th and that may well have been the beginning of the end. Negi did make a fight of it, but Sasikiran hung onto his advantage to grab the full point.

Wesley So, who had admitted to having mistakenly having got ready for Hou Yifan instead of Fabiano Caruana a day earlier, did not quite manage to grab a win from the Women's World champion.

In a game that was a Vienna opening, Wesley kept pushing Hou Yifan, who made a dubious 46th move Rh2 but her opponent's reply of Re7 was not too good either. Hou got a draw to appear to finally appear on the scoreboard.

'She was slightly better in the opening and then I may have had chances, but she defended very well,' said the smiling Wesley.

'Hopefully the second half will see better chess from me.'

It was Hou's first draw after four losses. With a rest due for Monday, she will be hoping for a better second half of the tournament.

It was a very well fought 59-move draw between Caruana and Lazincka, who are now first and second at the midway stage of the tournament.

The sixth round will be played Tuesday.

Points after five rounds:

4 points - Caruana

3.5 - Laznicka

3 - Sasikiran

2.5 - Wesley So

1.5 - Negi

0.5 - Hou

Results of fifth round: F Caruana drew with Viktor Laznicka; Parimarjan Negi lost to Krishnan Sasikiran; Hou Yifan drew with Wesley So.