Puzzle of the week #263

Chess Diagram: 

[Event "Puzzle #263"][Date "2014.11.09"][Result "1-0"]1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 d5 5.exd5 Nxd5 6.Nxf7 Kxf7 7.Qf3+ Ke6 8.Nc3 Nb4 9.a3 Nxc2+ 10.Kd1 Nxa1 11.Nxd5 Kd6 12.d4 Be6 13.Re1 b5

This interesting game was played at this year's 41st Olympiad in Norway. White is down a full Rook, while both Kings are caught in the center. Your tasks:
a) Name the opening
b) What does white have in exchange for the sacrificed Rook?
c) Find the best play for white

Total available points for this puzzle is 20. The answers will be published next week together with puzzle #264.

Puzzle #262 solution:
Game Steinitz – Pielhal, 1862. The correct answers were as follows:
a) Evans gambit
b) Black is up 3 pawns, so it can return material in exchange for continuing the game
Only Coco managed to answer correctly to all of them. Some who found the winning line, failed to answer correctly for question "b".
c) The winning line:

[Event "Puzzle #262"][Date "2014.10.26"][Result "1-0"]1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.b4 Bxb4 5.c3 Ba5 6.O-O Nf6 7.d4 exd4 8.Ba3 d6 9.e5 dxe5 10.Qb3 Qd7 11.Re1 Qf5 12.Bb5 Nd7 13.Qd5 Bxc3 14.Nxc3 dxc3 15.Nxe5 Ne7 {Solution} 16.Nxd7 Bxd7 (16...Qxd5 17.Nf6+ Kf8 (17...Kd8 18.Bxe7#) 18.Bxe7#) 17.Rxe7+ Kd8 18.Qxb7 Rc8 19.Bxd7 Qxd7 20.Rxd7+ Kxd7 21.Qd5+ Ke8 22.Re1#

Correct solutions:
Coco - 20 points
Anya, Benjamin, Jalen - 16 points
Bradley - 15 points
Daniel - 11 points
Deryk, Dheera, Cody, Brandon, Oliver, Terry, Hyson - 7 points
Yakov, Aaron - 3 points

Bradley - 57 points
Jalen - 49 points
Coco - 46 points
Daniel, Anya - 40 points
Brandon, Oliver, Benjamin - 38 points
Hyson - 36 points
Yakov - 35 points
Cody - 30 points
Dheera - 14 points
Aaron - 12 point
Deryk - 8 point


Two Knights, Fried Liver attack (1)