17 May 2016

B95 Sicilian Najdorf: 6.Bg5 e6, unusual White 7th moves (1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.Qd2 Be7 8.O-O-O b5 9.a3)

B95 Sicilian Najdorf: 6.Bg5 e6, unusual White 7th moves (1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.Qd2 Be7 8.O-O-O b5 9.a3)

The game I share today was played on the second round of the 2014 October Split II tournament. There are only two games left to finish in this tournament and those two games will decide who will be on third and on fourth place in the final standings. I am one of the two players involved in those two games and I need to at least win one of the two games or draw them both in order to secure my third place finish. On the first round players were divided into two groups of 12 players. I played on group 1 and I was one of the three players that advanced from group 1 to round 2. Only the leading player or players advance from each round, so this was a rare thing that three players advanced from the same group. All three of us were able to gather 56 points on round 1. Interestingly also the winner of group 2 was able to get 56 points. One might think that the second round was evenly fought because of this, but it really was not. It was quite clear from the start who are the players who will fight for the win of the tournament and who are the players who fight for being not the last one in the group. The winner of this tournament is NN Cheap (2052), who was able to gather 15 points in this last round. The second place went to aukermdr, who was able to get 13 points.

This game shows how poorly I can sometimes judge positions. I should not have resigned this game, but instead I should have continued the game and tried to get a draw. While I did not see any immediate way how my opponent could have converted that two pawn advantage into a win, I also could not see how I could hold the draw. I was quite convinced that my defenses will crumble and continuing the game would have been just waste of time. However, when I looked the end position after the game had finished with Stockfish, it thought that I had full compensation for the material. It even suggested the move I thought about of making before I resigned. I value material still too much sometimes and I need to learn that it is not so important all the time. I am not really a fan of playing against the Sicilian Defense, but obviously I have to face it from time to time due to my choice of the opening move 1.e4, which Bobby Fischer said to be best by test. However, in my games, I have probably struggled more with 1.d4 openings than with 1.e4 openings. That being said, from the games I have published in the blog, I have been doing really poorly against the King's Gambit. I should check at some point the actual statistics from both 1.e4 and 1.d4 and how I have actually done in those with both colors and see which one is truly the better one for me and with which color. I know the statistics per opening variations that I have posted, but those do not take into account the color that I have played with.

The game below reached the position that I have been facing many times since I started this blog when my opponent played 5...a6. I have usually played 6.Be2 in reply, but in this game I wanted to try another move, 6.Bg5. I had some vague memories that Bg5 was a theoretical move, but after that I was completely on my own. I did remember watching games where the move 6.Bg5 had been played, but I could not really remember all that much about them, only vague ideas. I think I made reasonable moves until I played 12.g4. I do not remember anymore why I chose to play g4 instead of h4, but whatever the reason, I did not choose the right move. Luckily for me, neither did aukermdr because my opponent replied with 12...Ne5, 12...d5 would have been a better alternative. I continued with 13.Qg2 with some ideas of queen getting to a better square and assist with the attack. I also did not save my bishop from being captured this time because I thought that the bishop would just be in the way of my other pieces if I move it. However, the move I chose was the biggest mistake of the game so far. Aukermdr replied with a less than ideal move, which gave me some chances to hold the draw. I was slightly worse after 13...Nxd3 though. Around this time in the game it became much harder to come up with a good plan. While taking back on d3 with the rook seemed like the obvious choice, the square d3 did became a little bit awkward for the rook after I played 15.Bd2. I played 15.Bd2 I guess to get the bishop out of the way of the advancing pawns that I thought might help in demolishing my opponent's defenses. Aukermdr replied by moving the knight out of the way of the advancement of the g-pawn and also wanted to place the knight on e5 and maybe try to harass my badly placed rook on d3.

After the knight maneuver to c4, I knew for sure that I am on the worse side of things. I should have still been able to hold my position together, but then on move 21 I carelessly moved my bishop to c3, which was a clear blunder that allowed some tactics. I remember using similar tactics on some of my opponents in the past, but for some reason I completely missed the idea that aukermdr can take on a3 with the knight because if I take back with the b-pawn, my opponent can then take on c3 with the rook. That would have won a pawn, but for some reason aukermdr did not play Nxa3 immediately, but instead played 21...Qd7. I guess I was not the only one not noticing the tactic. Unfortunately for me, I kept ignoring the threat of Nxa3, so aukermdr was able to play that on move 22. While the loss of a pawn for basically for free did make things more difficult for me, I still kept playing and tried to improve my position. When aukermdr played 43...d4, with the threat of getting another pawn, I probably lost my focus because I saw no way to defend the pawn on e5. I did think about the possibility of Rxh7+ and follow it up with a queen check on h3, but for some reason or the other did not see anything good quickly, so I stopped looking. This is probably one of my biggest problems in chess, I think that I can see the potential of these kind of attacking moves quickly and see if they work or not, but obviously time after time I am reminded by the fact that I should just calculate variations further than I currently do. One reason why I rejected the Rxh7 idea was that I saw no mate, but of course I should have been happy with a draw in that position. I have added one mate in one and four mate in four puzzles today.

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1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 Sicilian Defense: Najdorf Variation 7.Qd2 7.f4 b5 7...Be7 8.Qf3 h6 9.Bh4 g5 Sicilian Defense: Najdorf Variation, Goteborg (Argentine) 9...Qc7 Sicilian Defense: Najdorf Variation, Browne Variation 8.e5 dxe5 9.fxe5 Qc7 10.Qe2 Sicilian Defense: Najdorf Variation, Polugaevsky Variation, Simagin Line 7...Be7 8.0-0-0 b5 9.a3 B95 Sicilian Najdorf: 6.Bg5 e6, unusual White 7th moves Bb7 10.f3 Nbd7 11.Bd3 11.Kb1 Rc8 12.Nb3 0-0 13.Bf4 d5 14.exd5 Nxd5 15.Nxd5 Bxd5 16.Bd3 Qb6 17.Bg5 Bxg5 18.Qxg5 Nc5 19.Nxc5 Rxc5 20.Qh4 h6 21.Qd4 Qc7 22.b4 Rc3 23.Kb2 Rc8 24.Rd2 a5 25.Ra1 axb4 Capelan,G (2425) -Lau,R (2455) Solingen 1986 0-1 (41) 11.Ndxb5 axb5 12.Nxb5 d5 13.Qf4 e5 14.Qg3 d4 15.Bxf6 gxf6 16.Qg7 Rf8 17.Rd3 Bc6 18.Rb3 Nc5 19.Nxd4 exd4 20.Rb4 Ne6 0-1 (20) Rabelo,J (1586)-De Queiroz,G (1809) Brasilia 2015 11...0-0 N 11...Rc8 12.h4 Ne5 13.Kb1 Nc4 14.Bxc4 Rxc4 15.g4 0-0 16.h5 b4 17.axb4 Rxb4 18.Be3 d5 19.g5 Nd7 20.g6 Rxb2+ 21.Kxb2 Ne5 22.Qe1 Nc4+ 23.Kb1 Qb6+ 24.Nb3 Nxe3 25.Na4 Qa7 26.Rd3 Berger, B-Spassky,B Amsterdam 1964 0-1 (37) 11...Qb6 12.Be3 Nc5 13.Bxb5+ axb5 14.Ndxb5 0-0 15.Nxd6 Rfb8 16.Nc4 Qa6 17.Qe2 Bc6 18.Nd6 Na4 19.Qxa6 Rxa6 20.Nxa4 Bxa4 21.Bc5 Rc6 22.b4 Nd7 23.Nxf7 Nxc5 24.Ne5 Bg5+ 25.Kb1 Rc7 26.Ka2 Oparaugo,T-Migl,D (2265) Wuerttemberg 1994 0-1 (47) 12.g4 Ne5 12...d5 13.exd5 Nxd5 14.Bxe7 Qxe7 =/+ 13.Qg2 13.h4 !? = must be considered 13...Nxd3+ 13...Rc8 !? +/- 14.Rxd3 =/+ Black has the pair of bishops Rc8 14...Nd7 15.Bxe7 Qxe7 =/+ 15.Bd2 15.Rhd1 !? = is the best option White has 15...Nd7 +/- 16.Nb3? 16.Be1 !? +/- 16...Ne5 -+ 17.Re3 Nc4 18.Re2 18.Kb1 a5 19.Rd3 b4 20.axb4 axb4 -+ 18...d5 19.exd5 19.Qf2 doesn't change the outcome of the game dxe4 20.Nxe4 Bxe4 21.Rxe4 Bf6 -+ 19...Bxd5 19...a5 nails it down 20.Nxb5 Qxd5 -+ 20.Nxd5 exd5 20...Qxd5 21.Kb1 Bxa3 22.Bc1 -+ 21.Bc3? 21.Kb1 d4 22.Rxe7 Nxd2+ 23.Qxd2 Qxe7 24.Nxd4 +/- 21...Qd7?? Black lets it slip away 21...Bg5+ and the result of the game is clear: Black will win 22.Kb1 Nxa3+ 23.Ka2 Rxc3 24.bxc3 Nc4 -+ 22.f4 =/+ Nxa3 23.Rhe1 23.Rd1 Qc7 24.Rd3 Nc4 +/- 24...Qxf4+ 25.Kd1 +/- 23...Bd6 23...Rxc3 24.bxc3 Bd6 25.Qf3 +/- 24.Be5 =/+ Bxe5 25.fxe5 Nc4 26.Rd1 Exerts pressure on the isolated pawn 26.Kb1 b4 27.e6 fxe6 28.Rxe6 Kh8 = 26...Rfd8 26...a5 27.Qxd5 Qxg4 28.Qe4 Qg5+ 29.Kb1 +/- 27.Nd4 Re8 28.Rde1 28.Nf5 Rcd8 29.Rde1 +/- 28...Re7 28...Qe7!? 29.e6 fxe6 30.Rxe6 Qg5+ 31.Kb1 Nd2+ 32.Ka2 Rxe6 33.Rxe6 Rc4 34.Rxa6 Rxd4 35.Ra8+ Kf7 36.Ra7+ Ke6 37.Qe2+ Ne4 38.Qxb5 Ke5 +/- 29.b3 White threatens to win material: b3xc4 29.e6 fxe6 30.Rxe6 Rxe6 31.Rxe6 Re8 32.Rxe8+ Qxe8 33.Qxd5+ Qf7 34.Qa8+ Qf8 35.Qd5+ Qf7 36.Qa8+ Qf8 37.Qd5+ Qf7 = 29...Na3 29...Na5 30.Kb1 =/+ 30.Kb2 30.Nf5!? should be examined more closely Re6 31.Rd1 = 30...b4 +/- 31.Qf3 Nb5 32.Nf5 32.Qf4!? Nxd4 33.Qxd4 +/- 32...Re6 33.Qf4 33.Nd6 Nxd6 34.exd6 Qxd6 -+ 33...Nc3 33...Qc7 34.Qxb4 Nc3 35.g5 -+ 34.Re3 34.Qg5 f6 35.exf6 Nxe2 36.Nxg7 -+ 34...Ne4?? allows the opponent back into the game 34...Qc7 makes it even easier for Black 35.Nd4 Re7 36.Rf3 -+ 35.Nd4?? A valuable piece 35.Nd6 was much better Nxd6 36.exd6 =/+ 35...Ree8 -+ 36.Rf3 Qe7 36...Qa7 keeps an even firmer grip 37.Rd1 -+ 37.Ref1 Rf8 37...Rc7 -+ 38.Nf5?? the final mistake, not that it matters anymore 38.e6 f6 39.h4 -+ 38...Qc5 39.Rc1 a5 39...g5 seems even better 40.Qe3 Qa5 41.Ne7+ Kh8 42.Nxc8 Qa3+ 43.Kb1 Nc3+ 44.Qxc3 bxc3 45.Rxc3 -+ 40.Rh3?? White falls apart 40.Qe3 Qc7 41.Qd4 -+ 40...g5 Black threatens to win material: g5xf4 40...a4 and Black wins 41.bxa4 Ra8 -+ 41.Nh6+ 41.Qe3 Qc3+ 42.Qxc3 bxc3+ 43.Ka3 Rce8 =/+ 41...Kg7 +/- 42.Nf5+ Kh8 43.Qf1 43.Qe3 =/+ 43...d4 43...Rc6 44.Qg1 a4 45.Qxc5 a3+ 45...Rxc5?! 46.bxa4 Ra8 47.Ra1 = 45...Nxc5?! 46.Ne7 Re6 47.Nxd5 +/- 46.Ka1 Rxc5 +/- 46...Nxc5?! 47.Ne7 Re6 48.Nxd5 = 44.Nh6?? hands over the advantage to the opponent 44.Rxh7+! was possible Kxh7 45.Qh3+ Kg8 46.Nh6+ Kg7 47.Nf5+ Kg8 48.Nh6+ Kg7 49.Nf5+ Kg8 = 44...f5 -+ 45.Nxf5 Qxe5 46.Rd3 Qxh2 46...Nc5 ends the debate 47.Re1 Nxd3+ 48.Qxd3 Qc5 -+ 47.Qf3 47.Rxd4 Qe5 48.Re1 Rxf5 49.Qd3 +/- 47...Qe5?? gives the opponent new chances 47...Nd6 the advantage is on the side of Black 48.Qd5 Nxf5 49.gxf5 Qc7 50.Qxd4+ Qg7 51.Qxg7+ Kxg7 -+ 48.Re1 = White threatens to win material: Re1xe4 Rce8 49.Rh1 49.Qh1 Nf2 50.Rxe5 Nxh1 51.Rxa5 Nf2 52.Rxd4 Re4 = 49...Nd6 Black threatens to win material: Nd6xf5 49...Qc5 !? +/- 50.Qh3 = Rf7 50...Rf7 51.Qh5 Ref8 52.Nxd6 Qxd6 53.Qxg5 Qc7 = 0–1
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Vierjoki,T1932aukermdr20060–1

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