In his recent victory at the Hasselbacken Open, Dmitry Andreikin had to contend with an elite opponent who unveiled a surprise on Move 2.

Dmitry Andreikin, a Russian grandmaster, has an impressive record of tournament wins, including being the the runner-up in the 2013 World Cup and winning the Russian Championship in 2012. Yet, he is often overshadowed by some of his more illustrious countrymen. He sometimes will go months without playing an event. But he never seems to lose touch with the game, showing great consistency whenever he does play.

In early May, he won the Hasselbacken Open in Sweden, an extremely strong new addition to the chess calender. Crucial to his success was a last round win with Black. He was probably quite happy to be paired against the very enterprising Bosnian grandmaster Borki Predojevic. Predojevic enjoys playing unusual and aggressive chess, which is very welcome when a player needs to win with Black. The game was unusual right from the start, with both players playing extremely provocatively in the opening. 

Predojevic, B. vs. Andreikin, D.
Hasselbacken Open 2016 | Stockholm SWE | Round 9.1 | 08 May 2016 | ECO: B06 | 0-1
1. e4 g6 2. h4!? True to his style, Predojevic goes for the most entertaining and provocative possible line. I have always been a big fan of h4 ideas in any possible position, but I usually don't dare play stuff like this in a classical game. If Black ignores h4 completely, then h5 actually does start to look somewhat annoying for Black.
2... Nf6!? Andreikin goes for the most provoctive reply! This makes sense as there is even the infamous line 2. d4 Nf6 3.e5 Nh5 that was played by Magnus Carlsen against Michael Adams. If Predojevic plays the same way, it might be a bit better for Black with the White pawn already on h4.
2... h5 is the most common reply, but this validates White's move perfectly. Now he can switch to playing the usual lines with d4 and having the Black pawn on h5 clearly weakens the g5 square, which could be easily exploited. If White sticks a bishop or a knight on g5, it will be impossible for Black to get rid of it as playing f6 weakens too many squares near his king.  )
3. e5 Nh5 4. Be2? Careless! White expects Black to continue naturally and defend the knight on h5, either by playing Nf4 or Ng7, which would help White develop further. But Bxh5 isn't a real threat because giving up the bishop, particularly when White isn't very developed, seems unwise.
4. g4 Ng7 5. d4 d6 even though the Black knight has already moved several times, White pawns are rather exposed and rather weak.  )
4... d6! Bxh5 would trade the excellent bishop for the lowly knight on the side of the board. Clearly there is no reason to worry about sacrificing a pawn like this!
4... Ng7 5. d4 d6 6. Nf3 would have been a great position for White.  )
5. d4 White accepts that the opening didn't quite work out as he hoped and offers to simplify into an endgame. But the problem is that the e5 pawn will remain a serious weakness. And Bxh5 will never be a real threat in the endgame.
5. Bxh5 gxh5 6. Qxh5 Nc6 7. exd6 Rg8! And Black has a huge lead in development.  )
5... dxe5 6. dxe5 Qxd1+ 7. Bxd1 Nc6 8. Nc3 White can't easily defend the pawn with
8. f4 because h4 has already been played.
8... Ng3  )
8. Nf3 Bg4  )
8... Be6 9. Nh3
9. Nf3 trying to hold on to the pawn was probably a better try but eventually Black will win the pawn on e5.
9... Bg4 10. O-O Bg7  )
9... Nxe5 10. Ng5 An attempt to generate counterplay with knight jumps to Ng5 and Nb5.
10... Bc4!? An interesting and forcing move. Andreikin correctly evaluates the resulting imbalanced endgame as being in his fvor. Blacks move also doesn't allow White many other options as Black takes away White's hopes of counterplay with Nb5.
11. b3 Obviously Andreikin saw this before playing Bc4. His idea was
11... Bg7! The lines don't look very hard to see, but Black did need some very precise calculation to make sure it all works out. This is particularly commendable because Andreikin could have just tried to keep his extra pawn and play safely.
12. Bxh5
12. bxc4 Nd3+ 13. Kd2 Nxf2  )
12... Nd3+ 13. Kd2
13. cxd3 Bxc3+ 14. Ke2 Bxa1 15. dxc4 gxh5  )
13... Rd8 14. bxc4 Nxf2+ 15. Ke3 Bd4+ 16. Kf3 Nxh1 17. Bb2 Nf2 18. Bg4 White has two pieces for the rook, which would normally be enough compensation in a middlegame. But in an endgame, the rook is usually more powerful because the two pieces don't give White any chances for an initiative. In addition, Black also has two extra pawns. Andreikin could now have found a more tactical way to increase his advantage, but he makes the pragmatic choice of playing for a better endgame of rook plus two pawns vs two knights.
18... h6 19. Nh3 Nxg4 20. Kxg4 f5+ 21. Kf3 e5 22. Rb1 Kd7 23. Nd5 Bxb2 24. Rxb2 b6 25. Rb1 c6 26. Ne3 Ke6 Black continues to play very natural moves. The two knights are both misplaced.
27. Re1 Rd4 28. g3 g5 29. Nf2
29. hxg5 hxg5 30. Nxg5+ Kf6! and the knight is trapped.  )
29... e4+ 30. Kg2 Ke5 Continuing to play strategically. White has no way to make his knights more active, so Black maintains his advantage and takes his time.
31. c3 Rd7 32. hxg5 hxg5 33. Nc2 c5 34. g4 Now Black must be a bit precise:
34... Rd2! 35. Ne3 f4 36. Nf1 Re2!
36... Re2 37. Rxe2 f3+ 38. Kg1 fxe2 A nice finish.  )

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Parimarjan Negi is an Indian grandmaster who is the second-youngest ever to earn the title (at 13 years 4 months and 22 days). Ranked No. 90 in the world, he is currently a sophomore at Stanford University.