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2011 US Chess Championship – GM-Elect Sam Shankland Vs GM Alexander Onischuk. Shankland opens with d4, and Onischuk answers with the Nimzo-Indian. After a tense struggle for control of the center, Shankland attempts to hold on to an extra, very weak pawn on c5. Onischuk is sufficiently distracted by this, and white is able to achieve and maintain a small but lasting positional advantage. Shankland boldly sacrifices a piece to achieve a favorable endgame where he has 2 pawns for a knight, which he is able to convert while playing on with seconds on his clock and using the 5 second increment to stay alive. A fantastic victory by Sam Shankland, and it will be very interesting to watch him play against Robert Hess in the semi-finals.
Final standings
Group A
1 GM Kamsky, Gata 2733 x ½ ½ ½ 1 1 ½ 1 5.0
2 GM Shulman, Yuri 2622 ½ x ½ 1 ½ 1 ½ ½ 4.5
3 GM Robson, Ray 2522 ½ ½ x 1 ½ ½ 1 0 4.0
4 GM Ivanov, Alexander 2540 ½ 0 0 x 1 ½ ½ 1 3.5
5 GM Akobian, Varuzhan 2611 0 ½ ½ 0 x ½ 1 ½ 3.0
6 GM Ehlvest, Jaan 2586 0 0 ½ ½ ½ x 1 ½ 3.0
7 GM Stripunsky, Alexander 2578 ½ ½ 0 ½ 0 0 x 1 2.5
8 IM Naroditsky, Daniel 2438 0 ½ 1 0 ½ ½ 0 x 2.5
Group B
1 GM Hess, Robert L 2565 x 1 ½ ½ 1 1 1 ½ 5.5
2 GM Onischuk, Alexander 2678 0 x ½ ½ ½ ½ 1 1 4.0
3 IM Shankland, Samuel L 2512 ½ ½ x ½ 0 1 1 ½ 4.0
4 GM Seirawan, Yasser 2636 ½ ½ ½ x ½ ½ 0 1 3.5
5 GM Shabalov, Alexander 2590 0 ½ 1 ½ x 0 0 1 3.0
6 GM Kaidanov, Gregory S 2569 0 ½ 0 ½ 1 x 1 0 3.0
7 GM Christiansen, Larry M 2586 0 0 0 1 1 0 x ½ 2.5
8 GM Finegold, Benjamin 2500 ½ 0 ½ 0 0 1 ½ x 2.5