1. d2d4  1... g8f6  2. c2c4  2... e7e6  3. b1c3  3... f8b4  4. a2a3  4... b4c3  5. b2c3  5... b7b6  6. f2f3 The Samisch line. As in all the relative lines that are named after the German GM, the modest f2-f3 move aims for a solid central occupation, followed by a monstrous kingside attack. 6... b8c6  7. e2e4  7... c6a5  8. f1d3  8... c8a6  9. d1e2  9... d7d6  10. f3f4 \"I wanted to go for a fight today after my loss two days ago so I thought, let's give it a try.\" (Van Foreest) What the young Dutch meant was that he was basically burning the positional bridges behind him. If his kingside attack would not succeed, he was doomed to a miserable failure on the opposite wing. 10... d8d7 Giri started to burn quite a lot of time on the clock, but follows the most straightforward path towards the enemy weaknesses. 11. g1f3  11... d7a4  12. f3d2  12... e6e5 A novelty, played after a lengthy thought. 13. e1g1  13... e8g8 Now that is certainly play with the fire game. 14. f4e5  14... d6e5  15. a1b1 After a lot of hesitation, White finally declines the immediate sacrifice. 15... c7c5 But Giri invites the sacrifice once more! He desperately needs to win in the contest for the first place and this might explain the logic behind his decision. 16. f1f6 And White does not need a second invitation! From the times of Bronstein, this might be White's most famous sacrifice in the Nimzo-Indian. The first player often even sacrifices a pawn there with some f5-f6, lures the black knight back on the f6-square and then takes it.