The world number 20 Indian, playing with white pieces, started on a dominating note and took the attack to his opponent from the word go.
He seemed to be in a hurry to wrap up the proceedings and his aggressive game caught the Swiss player off-guard who skittled under pressure to concede the game in a mere 24 moves.
"I had prepared an interesting idea in French defence and my pawn gambit on the 20th move brought me into an advantageous position and complicated the game for my opponent," the 31-year-old from Guntur said after the game.
He will be now up against Hungarian Grand Master Peter Leko in the fifth round of this single Round-Robin tournament.
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