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#4575 by OG Rapidtoernooi

16:46, January 16, 2012 by OG Rapidtoernooi

#4576 by OG Rapidtoernooi

16:50, January 16, 2012 by OG Rapidtoernooi

[Event "Deizisau Intl Fall A Open"] [Date "2011.10.29"] [Round "1"] [White "goltrpoat"] [Black "NN"] [Result "1-0"] 1. d4 d6 {Inviting White to play 2.e4, transposing into either a Pirc or a Philidor. I do play 2.e4 occasionally, but I didn't feel sufficiently prepared.} 2. c4 g6 3. Nc3 Bg7 4. e4 e5 5. dxe5 {A spur of the moment decision. I've almost never exchanged on e5 in the KID, but one of my goals for this tournament was to work on converting small advantages, and the ensuing queenless middlegame appealed to me for some reason.} 5... dxe5 6. Be3 (6. Qxd8+ Kxd8 7. Be3 {is similar to the game. The immediate capture is played almost exclusively by strong players, but I don't see how Black's king is any worse on c7 than it is on g8.}) 6... Qxd1+ 7. Rxd1 c6 {Nb5 was never a threat, and a simple 7...Nf6 would have come close to equalizing. The text move will prove to be the source of Black's problems for the remainder of the game: it denies the c6 square to the knight, meaning that Nf6 can't be played without hanging the e5 pawn, so now Black has to somehow thread three pieces through the two available squares e7 and d7.} 8. Nf3 Be6 {One possible plan here was to put a piece on c4 via c4-c5, Nd2, and Bc4, but I felt that this was too slow. Another plan is to wait for Ne7 and put a bishop on d6, where it would be incredibly strong. My opponent decides to respond prophylactically to the first one, which was perhaps a mistake. Two other options were available:} (8. .. Nf6 9. Nxe5 Nxe4 10.Nxe4 Bxe5 11. Nd6+ Ke7 12. c5 {and White is better .}) ({Instead, Black could have achieved near equality with a standard exchange operation:} 8... Bg4 9. Be2 Bxf3 10. Bxf3 Bh6) 9. Ng5 {Conventional wisdom dictates that the side with more space shouldn't exchange, but Be6 is Black's only active piece, and I felt that exchanging light-squared bishops on e2 would benefit White more than it would benefit Black. Provoking ...h6 also seemed like a potentially good idea.} 9... Bg4 10. Be2 Bd7 {I don't understand this move. I had mostly just considered the obvious Bxe2:} (10. .. Bxe2 11. Kxe2 Nf6 12.Rd2 Nbd7 13. Rhd1 {at which point Black should have trouble getting his bishop into play (via e.g. Bg7-f8-c5) without hanging a pawn on e5.}) 11.Rd2 {White wants to castle and play Rd2 followed by Rfd1. I decided that the order didn't matter, and figured I'd overprotect e2 just in case.} 11... h6 12. Nf3 Ne7 13. O-O Be6 14. Bc5 {Improving my pieces while making it difficult for Black to develop. The bishop is headed for d6, targeting e5 while being generally annoying.} 14... Nd7 15. Bd6 Bf6 {Here and earlier, I was mostly worried about Black transferring his bishop to the a3-f8 diagonal and forcing exchanges. To do this, the knight must go on g6, so 15...g5 had to be the best move. After the text, the bishop is both passive and vulnerable.} (15. .. g5 16. h4 g4 17. Ne1 h5 18. Nc2 Ng6) 16.Rfd1 O-O-O {My heart rate about doubled here.} (16. .. g5 {was still the correct move}) 17. Nd5 {I was rather proud of this move, since I had been eyeing it as a possible deterrent to o-o-o ever since I saw the Be3-c5-d6 idea almost ten moves ago. The knight can be taken one of three ways, and all of them are bad for Black.} 17... Ng8 (17. .. cxd5 18. cxd5 Nb6 19. dxe6 fxe6) (17. .. Nxd5 18. cxd5 Bg4 19. dxc6 bxc6 20. Ba6#) (17. .. Bxd5 18. cxd5 Nb6 19. Bxe7 Bxe7 20. Nxe5) 18. b4 {A small innacuracy. Houdini prefers the solid 18.h3, preventing 18...Bg4.} 18... Bg4 {White now wins a pawn by force, but this is literally the only non-self-harming move that Black has.} (18. .. cxd5 19.cxd5 Bxd5 20. Rc1+ Bc6 21. Rxc6+ bxc6 22. Ba6#) 19. Rc2 Nb6 (19. .. b6 20.c5 b5 21. Ne3 {An interesting alternative is} (21. a4 cxd5 22. axb5) 21... Bxf3 22. Bxf3 Kb7 23. a4 {is completely won for White}) 20. Nxf6 (20. Ne3 Be6 21. c5 {is also good, although I was worried about Bxf3.}) 20... Nxf6 21. Nxe5 Be6 22. c5 Nbd7 {This loses immediately, although the best alternative is unpleasant as well:} (22. .. Nxe4 23. b5 Nxd6 24. cxd6) 23.Nxc6 Rde8 24. Nxa7+ Kd8 25. c6 {and Black resigned here, as he is losing decisive material.} 1-0

#4583 by Darren Leamy

05:38, January 17, 2012 by Darren Leamy

#4584 by testapi

05:55, January 17, 2012 by testapi

Yearly Archives: 2012

#4575 by OG Rapidtoernooi

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