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Jan-20-06 | | patzer2: The puzzle solution 18...dxe3!! wins with a neat sham Queen sacrifice to open on a decisive mating attack against White's undeveloped King and Kingside pieces. Black could have won easy enough with the simple 18...a5! 19. exd4 (19. b5 Qe7 20. a4 Qa3 ) 19...axb4 20. dxe5 bxa3 21. Rxd8 Rfxd8 . But with White's miserable development (almost like he gave odds of not moving his Kingside pieces for the first 20 moves), Black could easily afford to play for a brilliant finish. Here's some analysis of the key combination with Fritz 8: <18...dxe3!!> Black could have won more easily with 18... a5! 19. exd4 (19. b5 Qe7 20. a4 Qa3 ) 19... axb4 20. dxe5 bxa3 21. Rxd8 Rfxd8 .
<19. Rxd8 Raxd8 20. Be2 Rd2 21. g4> If 21. Nh3 (diagram below),  click for larger viewBlack has mate-in-six after 21...Rxe2+ 22. Kf1 Rd8 23. Nf2 Rxf2+ 24. Qxf2 Rd1+ 25. Qe1 Bd3+ 26. Kg1 Rxe1#. <21...Bd3 22. Kf1> If 22. Bxd3 (diagram below),  click for larger viewBlack has mate-in-one after 22...Rd1#.
<22... Nxe2 23.Nxe2> If 23. Kg2 (diagram below),  click for larger viewBlack has mate-in-two after 23...Nf4+ 24. Kg3 Rg2#.
<23... Rxe2 24. Kg1> (24. h3 Rd8 25. g5 Rd4 26.
Qg3 Rxc4 ) <24... Rd8 0-1> |
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Apr-24-06
 | | Mateo: <An Englishman: Good Evening: I saw the first move, but the third proved tricky. I thought 20...Rd4 (threatening 21...Rfd8 as well as the Queen) would also win: 20...Rd4; 21.Qh5?,Rfd8; 22.Qxf5?,Rd1+; 23.Bxd1,Rxd1X. But 21.g4 seems to hold.> Your suggestion is fine too. 20... Rd4 21. g4 Rfd8! 22. Kf1 (22. gf Rd1 23. Bd1 Rd1 #) Be6 23. c5 Rd2 . White cannot move. |
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Apr-24-06
 | | Mateo: <netlava: I got it wrong. I was thinking 18...Nb1 19. Rd1 Bc2 20. Rc1 d3> 18... Nb1 is good too. But after 19. Rd1 Na3 is better. Black wins. |
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Apr-24-06
 | | Mateo: <The17thPawn: I couldn't make myself sac the queen because I couldn't find a mate or a totally decisive material gain if white plays 21.Kf1 instead of the time wasting 21.g4. perhaps 21...Nxe2 22.Nxe2,Bd3 23.h3,Rd8+ 24.Qe8+, Rxe8+ 25.Kxe8, Bxc4 regains all material and two pawns besides.> Black won two pawns, a decisive material advantage. Your variation was good enough. |
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Apr-24-06
 | | Mateo: <al wazir: I thought 20...Bd3 would win. It apparently doesn't; the white king can escape via 21. Kf1 Bxe2+ 22. Nxe2 Rd1+ 23. Qe1, and I don't see a way for black to do better than equalize.> 23... Re1 24. Ke1 Nb1 , Black won a pawn and will win another one soon. Easy win. |
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Apr-24-06
 | | Mateo: <al wazir: why did white play 21. g4, forcing black to do what he was going to do anyway? Better was 21. Kf1, and if 21...Bd3 then 22. Qe1. White gives back his queen for a rook and all proceeds serenely to a drawn endgame.> 21. Kf1 Ne2 22. Ne2 Bd3 23. h3 Rd1 24. Qe1 Re1 25. Ke1 Bc4, Black won two pawns and the game. |
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Jan-18-07 | | GeauxCool: Black has a lead in development that was caused by White's Qxc3. He was trying to avoid trebled pawns, but the takeback on c3 expose the White Queen to attack and losing time, but he has a better position to counterbalance. Black's lead in development is countered by the fact that he gives white the two bishops. And so black must attack. If white can complete development, then the 2 bishops will dominate. So when the owner of the 2 bishops has not developed, then the owner of the two knights has to open things up! |
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Oct-29-07 | | Amorim: Why not 10. b4? How does black prevents loosing one of the knights? |
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Nov-15-10 | | sevenseaman: Miguel Quinteros could wish all he can but his h2 pawn wont vanish into thin air! |
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Nov-26-12
 | | perfidious: One of Ribli's finest games, and an object lesson in the perils which may befall White when he neglects his development in the 4.Qc2 Nimzo. |
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Jun-27-14
 | | offramp: Despite the opening there is a real Adolph Anderssen feel to black's play in this game. |
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Jul-24-17 | | mcgee: Looking at this on the computer, 18...a5 might actually be stronger than 18...dxe3. If 19 e4, then 19..axb4 followed by 20...bxa3. If 20 b5, then 20..Qe7 and White can resign. 18..dxe3 is a great move to play, but White's position is so riddled with weak spots it doesn't look like the only winning option.. |
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Aug-11-22 | | nummerzwei: <Amorim: Why not 10. b4? How does black prevents loosing one of the knights?> Well, Black has the fork 10...Nb3. Nevertheless, it is a move that comes into consideration. In his collection of miniatures <Grandmaster Secrets: Winning Quickly at Chess>(2007), John Nunn considered it to be relatively best. The main line is then 11.Qxe4 Nxa1 12.Be5 a5! 13.Bxa1! (Black threatened 13...Nb3 and 14...a4) ...axb4 14.Qd4  click for larger viewHere, an illustrative line is 14...Qf6 (14...f6, 14...Qg5 Nunn) 15.Qd1 Qe7 16.e3 bxa3 17.Bd3 e5 18.Ne2 d6 19.0-0 Be6 ⩱  click for larger viewBlack is slightly better due to his material advantage and the a3-pawn. After the game move 10.Rd1, White should reply to 10...d5 with 11.cxd5 exd5 12.e3, and after 12...Bd7!? (threatening to win material with 13...Ba4), he can apparently keep the position together with 13.f3 Ne6 14.Qxd5 Nf6 15.Qd6:  click for larger view |
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Aug-12-22
 | | Fusilli: <nummerzwei> Nice analysis. Personally, I'm not a fan of 6.Bf4. I prefer the standard Nf3, g3, Bg2, O-O. The Nimzo can be a bit of a minefield if Black breaks up the center before white castles. As your lines show, black gets super-active play (and a safe king) if white gets too greedy. |
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Apr-09-23
 | | GrahamClayton: <al wazir>
BUT why did white play 21. g4, forcing black to do what he was going to do anyway? Better was 21. Kf1, and if 21...Bd3 then 22. Qe1.<al wazir>,
21. Kf1 Nxe2 22. Nxe2 Rd1+ 23. Qe1 Rfd8 24. g4 Rxe1+ 25. Kxe1 Be6 26. c5 Rd2 27. h4 Rb2 looks winning for Black. |
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Dec-23-23 | | raymondhow: I chose the simple looking 18...Nb1, apparently works even better. The engine actually prefers three different moves to 18...dxe3. |
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Dec-23-23 | | mel gibson: I chose 18. .. Nb1
there are actually 3 possible solutions which are all about equal:Stockfish 16 chose 18. ..a5
18... a5
(18. .. a5 (1. ... a5 2.c5 axb4 3.Bc4+ Kh8 4.Ne2 Nb1 5.Ra2 dxe3 6.0-0 Nd2 7.Rc1 b3 8.Rb2 Ra4
9.Qe1 Rxc4 10.Rxc4 Nxc4 11.Rxb3 Qd2 12.Qxd2 exd2 13.Nc3 Bc8 14.Kf2 Rd8
) +6.07/39 135)
score for Black +6.07 depth 39.
if I force SF to play the game ply:
18. .. dxe3
19. Rxd8 (19. Rxd8 (1.Rxd8 Rfxd8 2.Be2 Rd2 3.Qf2 Rd1+ 4.Bxd1 exf2+ 5.Kxf2 Nxd1+ 6.Ke1 Nb2
7.Ke2 Nxc4 8.g4 Be6 9.Kf2 Rc8 10.h4 Nxa3 11.Ne2 Rc2 12.Ra1 Nb5 13.Rc1 Nd4
14.Rxc2 Nxc2 ) -6.16/45 189)
score for White -6.16 depth 45.
if I force SF to try my choice:
18. .. Nb1
(18. .. Nb1 19. Qf2 (1.Qf2 dxe3 2.Qxe3 Nxd2 3.Qxd2 a5 4.b5 Be6 5.Nh3 Rc8 6.Qe3 Bxc4 7.Bxc4+
Rxc4 8.Nf2 Qd4 9.Qxd4 Rxd4 10.0-0 Rc8 11.h3 a4 12.Re1 Rc2 13.Ng4 Rd8 14.Ne3
Rc3 ) -5.47/42 189)
score for White - 5.47 depth 42. |
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Dec-23-23 | | Refused: 18...dxe3 has to be the way to go.
19.Rxd8 Raxd8 (I don't think it makes much of a difference, just matter of principle to get remote rook in) 20.Be2 Rd2 and repeating the theme of yesterday, the white King is kinda boxed in and this has to be -+.Black is threatening Bd3 (idea Bxe2 Rd1#) and Rfd8 just piling more pressure on white, until he cracks. |
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Dec-23-23 | | Allderdice83: I had 18 ... dxe3 19. Rxd8 Raxd8 20. Be2, and I thought about 20 ... Rd2, but decided 20 ... Rd4 looked better. But then I saw 21. g4! Stockfish now gives 21 ... Bd3 22. Bxd3 Rxd3 23. Kf1 Rd2 24. g5 fxg5 25. Qxg5 Rf2+ 26. Ke1 Rc2 27. Qxe3 Rd8 28. Kf1 Rd1+ 29. Qe1 Rxe1+ 30. Kxe1(-1.8). Black's better, in other words, but there's a lot of work left. Clearly the text is better (-3.3 after 20 ... Rd2). |
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Dec-23-23
 | | sorso: white was punished for not taking care of the king,really like this game |
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Dec-23-23
 | | chrisowen: Eg its hod xl jump its z dxe3 abbot lab v its huff adagio nag ah its bribe dxe3 cuff; |
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Dec-23-23
 | | scormus: Oh dear, I "get" a Saturday puzzle starting with the Q-sac I was so pleased to have found. And then I learn it wasn't the best move. Or was it? In the text line, B's moves are all very natural, admittedly with some help from W's 21 g4. If, instead, B had played 18 ... Nb1 then I think the "right" moves would have been more difficult to find, and I likely wouldn't have chosen any of them. I'll settle for the text! |
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Dec-23-23 | | whiteshark: I like forced move sequences. |
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Dec-23-23
 | | playground player: The White Queen is descending into claustrophobia. |
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Dec-23-23 | | vajeer: I am in dxe3 camp. The line is pretty much forced which makes it easy I guess |
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