Korobov continues to dominate, stays in lead

Grandmaster Anton Korobov of Ukraine maintained a slender half point lead drawing with nearest competitor Evgeny Alekseev of Russia in the sixth round of the AICF-AAI Chess Cup 2012.

In other matches on Wednesday, Parimarjan Negi played out a draw with Radoslav Wojtaszek of Poland, Krishnan Sasikiran scored his first victory at the expense of out-of-sort Abhijeet Gupta.

With just four rounds remaining in the category-18 six-player double round robin tournament, Korobov is in front with four points out of a possible six and Alekseev remained on his toes a half point behind. Negi and top seed Wojtaszek share the third spot on three points apiece while Sasikiran, 2.5 points, edged himself ahead of Gupta (2) after an easy victory.

Korobov played the white side of a Nimzo Indian hoping for an advantage in one of the main lines. However, as Korobov himself said in the post-game chat, Alekseev was well armed to tackle the intricacies of the sharp middle game and the Ukrainian thought it better to go for equalizing variations.

Once that intent came in, Korobov went for heaps of exchanges to reach a level endgame that was drawn because of repetition of moves.

Parimarjan Negi faced the Sicilian Najdorf by Wojtaszek and an opening Novelty by the Indian gave some advantage after Wojtaszek decided to sacrifice an exchange early.

The position got simplified in quick time and Wojtaszek had two pawns and a minor piece for a lost rook which offered enough counter play for the Polish.

Abhijeet Gupta's form remained a cause for concern after he blundered again. Out of a harmless variation in the Grunfeld defense, Gupta got his knight trapped by Sasikiran, who recorded a smooth win.

Results, round 6: Krishnan Sasikiran (Ind, 2.5) beat Abhijeet Gupta (Ind, 2): Parimarjan Negi (Ind, 3) drew with Radoslav Wojtaszek (Pol, 3); Anton Korobov (Ukr, 4) drew with Evgeny Alekseev (Rus, 3.5)

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