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12... Bb6 
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Forced, unless I want to play an unsound piece sacrifice. | 
   
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13. a4 
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Gaining queenside space and threatening to kick the bishop back further, but allowing me the time to safeguard my king. | 
   
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13... O-O 14. Bh6 
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And white finally invades with what looks like a strong square for the bishop. I plan to play ...Nf5 and challenge the bishop. | 
   
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14... Rfd8 
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But first, I must save the rook, and getting it behind the d pawn seemed the best place to put it. | 
   
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15. Qg5 
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Threatening Qf6 and Qg7#. | 
   
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15... Nf5 
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So it is time to get rid of the bishop. | 
   
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16. g4 
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Not sure why white plays this. The knight was going to move next turn anyway (taking the bishop), so kicking at it was pointless, and this weakens the pawn cover of the white king. If white wanted to launch a pawn attack, it would be more normal to attack with the h pawn, as black's g pawn is the one advanced. | 
   
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16... Nxh6 
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And white's two piece attack is over. I must say that my position was dangerous for a while, but white did not attack aggressively and gave me time to fix the defects in my position. | 
   
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17. Qxh6 d4 
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Threatening to win the c pawn, and if white trades, I will look to double rooks on the d file. | 
   
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18. a5 
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White takes a moment to move the bishop back another square, but now it eyes the undefended e pawn. | 
   
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18... Bc7 19. cxd4 
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And white decides to trade the c pawn rather than try to protect it. But this allows my pieces to become active. | 
   
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19... Rxd4 
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Threatening ...Rxg4# and attacking the undefended b pawn. The e pawn is still en prise to the bishop. I like my chances here. | 
   
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20. f3 
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This defends the mate threat, but further weakens the pawn cover of the white king. I think I would have played Qh3 to get the queen back in the game, but there really is no good move for white, only less bad ones. | 
   
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20... Bxe5 
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Now I am up a pawn, the b pawn is still hanging to the rook, and I can even win a pawn with 21...Rxg4  and 22...Bxa1. Trading a pair of rooks while winning a second pawn would be tantamount to winning the game. | 
   
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21. Nd2 
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And this lets me uncork a mini-combination that not only wins a pawn, but gets rid of a piece and rook for each side. After this the game is decided. | 
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21... Rxd2 
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Temporarily sacrificing the exchange, but the discovered attack by the bishop will let me win the exchange right back. | 
   
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22. Qxd2 Bxa1 
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And now the rook is overloaded, as it cannot recapture on a1 and continue protecting the f3 pawn. | 
   
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23. Rxa1 Qxf3 
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And a two pawn advantage is enough to win from here. It may take a while, with a queen and rook on the defending side, but barring a blunder, the outcome is inevitable. | 
   
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24. Qg2 
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The more pieces that get traded, the easier the endgame for me, so I am happy to accept this queen trade. I would like to trade rooks too, but I don't see an easy way to do that. | 
   
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24... Qxg2+ 25. Kxg2 Rd8 
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And the rook must get active to tie down the white rook to defense. Then my king can go to work. | 
   
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