The Start of The World Chess Cup

The FIDE World Chess Cup started yesterday in Baku. A lot of interesting games were played, I chose the following one for you:
A game that I liked (ChessBase 13)

[Event "FIDE World Chess Cup"]
[Site "?"]
[Date "2015.09.11"]
[Round "1.19"]
[White "Mamedyarov, Shakhriyar"]
[Black "Idani, Pouya"]
[Result "1-0"]
[WhiteElo "2736"]
[BlackElo "2569"]
[Annotator "Bojkov, Dejan"]
[PlyCount "61"]
[EventDate "2015.??.??"]
[WhiteClock "0:28:46"]
[BlackClock "0:17:38"]

{In the first round of the World Cup I would like to pay a tribute to the
hosts with a game of their main hope. Shakriyar Mamedyarov has a dangerous
opponent in this game- the former world youth champion Idani Pouya of Iran.}
1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. Bd3 Be7 5. b3 b6 6. Bb2 Bb7 7. Nbd2 Nbd7 8. O-O
O-O 9. c4 {Diagram [#] The position is quite symmetrical but since White is
the first one to play he has more options. He may now like to put the queen on
e2 (c2), connect the rooks and then decide in which moment to open the center.
Pouya decides not to allow this.} Ne4 ({The more usual way is} 9... c5 {which
generates pressure in the center. For example} 10. Qe2 Ne4 11. Rfd1 Qc7 12.
cxd5 exd5 13. Rac1 Bf6 14. Nf1 Rac8 15. Ng3 g6 16. Bb5 {with complex play,
where White seems somewhat better, Short,N (2664)-Ganguly,S (2603) Kolkata
2015}) 10. Rc1 Bd6 ({Also} 10... Rc8 11. Qe2 a5 12. Rfd1 f5 {has been seen,
Danielian,E (2490)-Zhu,C (2461) Sharjah 2014}) 11. Qc2 f5 {The point behind
Black's last move. He wants to create a nice Stonewall position with the dark
squared bishops on the board.} 12. Rfd1 $146 {[%csl Gd1,Yd2,Yd3,Yd4,Yd5,Yd6,
Yd7,Rd8][%cal Gd1d8] Diagram [#] The mystery rook move is a novelty.
Mamedyarov sees in the future.} ({Previously only} 12. Ne5 {has been tried} Rf6
(12... Nxe5 {is not bad neither} 13. dxe5 Bb4 $11) 13. c5 $6 {This drops a
pawn.} bxc5 (13... Nexc5 14. dxc5 Bxe5 15. Bxe5 Nxe5) 14. Bxe4 {and so on,
Cordero,D (1984)-De Leon,P (1741) Montevideo 2009}) 12... Qe7 ({It is quite
understandable that Black does not want to open the files for the white rooks
with} 12... c5 {but that was objectively the correct decision.}) 13. cxd5 exd5
14. Ne5 c5 {Black changes his mind.} ({Bad was} 14... Ndf6 15. f3) ({However}
14... Rac8 {deserved attention as it creates the threat} 15. f3 (15. Ndf3 {is
better to which Black would most likely react with} c5) 15... Nxd2 16. Qxd2
Nxe5 17. dxe5 Bxe5) 15. Nxe4 $1 {The mistery is about to get reveal...} fxe4
16. Bxe4 $3 {[%csl Rd6,Rd7][%cal Rd1d7] Diagram [#]} dxe4 ({There is no choice
} 16... Bxe5 $2 17. Bxh7+) 17. Nxd7 Qxd7 ({Perhaps} 17... Rf5 $1 {[%csl Yd7]
Diagram [#] was the way to play. The idea is to somehow surround the white
knight. True, after} 18. dxc5 ({Or} 18. Ne5 Raf8 {with good compensation for a
pawn.}) 18... bxc5 {Both} 19. Qc4+ ({and} 19. Rxd6 Qxd6 20. Nxc5 Rc8 21. Bd4)
19... Kh8 20. Rxd6 Qxd6 21. Nxc5 Qd2 22. Qc2 Qxc2 23. Rxc2 {give more than
enough for the exchange but it is doubtful that White's advantage will be
sufficient for the whole point.}) 18. dxc5 {[%csl Gd1,Rd6,Rd7] Diagram [#] Now
the mystery of the rook is fully revealed. It wins something along the d file.}
Bxh2+ {The bishop is doomed anyway. For example} (18... bxc5 19. Be5 Rf6 20.
Bxf6 gxf6 21. Qxc5 Bxc5 22. Rxd7 Ba3 23. Rcc7 {and White wins.}) 19. Kxh2 Qc7+
(19... Qg4 {is a bit more active but White is in control after} 20. Kg1 Rac8
21. Qc4+ Kh8 22. Qd4) 20. Kg1 {Diagram [#] White won a pawn and has more
active pieces.} Rac8 21. Qc4+ Rf7 22. cxb6 Qxb6 ({Or else Black loses another
pawn in the endgame} 22... Qxc4 23. Rxc4 Rxc4 24. bxc4 axb6 25. Rd8+ Rf8 26.
Rd6) 23. Qa4 Rcf8 (23... Rxc1 24. Rxc1) 24. Rd7 {Now Mamedyarov decides the
game with direct atack on the seventh and the eight ranks.} Rxd7 25. Qxd7 Rf7
26. Qe8+ Rf8 27. Qa4 {[%csl Ga4,Yb6] Diagram [#] Avoids the possible technical
problems in the opposite colored bishop endgame after} (27. Qe5 Qf6 28. Qxf6
gxf6 29. Rc7 Rf7) 27... a6 28. Qc4+ Rf7 ({White would not mind this endgame
though} 28... Kh8 29. Qc7 Qxc7 30. Rxc7) 29. Rd1 Qc7 30. Qe6 Qe7 {This allows
a beautiful finish.} 31. Ba3 $1 {[%csl Rg8][%cal Rd1d8,Rd8g8] Diagram [#]} ({
Black resigned not willing to see the mate} 31. Ba3 Qxe6 32. Rd8+ Rf8 33. Rxf8#
) 1-0


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