Sunday, December 31, 2017

Blackmar-Diemer Peterson 4.f3

Emery Peterson played a Blackmar-Diemer Gambit that was declined by 4...e3. Black returned the gambit pawn and White got a quick lead in development for an advantage. The f3 pawn later advanced to great effect with 15.f4 and 16.f5. Black was International Master Dariusz Mikrut of Poland. His higher rating helped offset White's good position on the board. Peterson missed 18.Qf2! He was outplayed by the IM.

Peterson (2168) - Mikrut (2375), European Blitz 2017 Katowice POL, 15.12.2017 begins 1.d4 Nf6 2.Nc3 d5 3.e4 dxe4 4.f3 e3 5.Bxe3 e6 6.Bd3 Nbd7 7.Nge2 c5 8.0-0 Be7 9.Qe1 cxd4 10.Nxd4 Ne5 11.Be2 a6 12.Rd1 Bd7 13.Kh1 Rc8 14.Qg3 Ng6 15.f4 0-0 16.f5! exf5 17.Nxf5 Re8
18.Nxe7+? [18.Qf2! Bf8 19.Bb6 Rxe2 20.Nxe2 Qe8 21.Nc3+/-] 18...Qxe7 19.Bg5 Rxc3! 20.Qxc3? Qxe2 21.Bxf6 [21.Rde1 Qg4-/+] 21...gxf6 [21...Bc6 22.Qg3 gxf6-/+] 22.Rfe1 Qg4 23.Rxe8+ Bxe8 24.Rd8 Qe2 25.h3 Kg7 26.Qc8 [26.Kh2 Bc6-/+] 26...Bc6 27.Rg8+ Kh6 28.Qg4 Qxg4 [28...Qf1+ 29.Kh2 f5-+] 29.hxg4 Kg5 30.Kh2 Kxg4 31.g3 h5 32.Rg7 Bd5 33.Rg8 f5 34.b3 f4 35.gxf4 Kxf4 36.c4 Be6 37.Rb8 Ne5 38.Rxb7 Ng4+ 39.Kg1 [39.Kg2 Ne3+ 40.Kh2 h4-+] 39...h4 40.Rb6 Kg3 41.Rd6 Bf5 42.Rd4 h3 43.c5 h2+ 0-1

Sets: Chess Games 1.e4 Series and Chess Games 1.d4 Series
Copyright 2011-2017 Author Page / sawyerte@yahoo.com
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Saturday, December 30, 2017

Mikenas Wins Exciting 1.d4 Nc6

Developing your knights quickly in a chess game is good, but if you only move your knights, that is risky, especially as Black. Years ago Georgi Orlov wrote a book entitled "Black Knights Tango" covering 1.d4 Nf6 2.c4 Nc6 with a 2nd edition in 1998. This is often called the Two Knights Tango. Since I often play 1...Nc6 this opening is familiar to me, but I prefer other lines. Gideon Stahlberg was a Swedish grandmaster born in 1908. He was noted for playing 400 games in 36 hours at Buenos Aires.

Vladas Mikenas of Lithuania was born in 1910. Mikenas became an International Master with a long and illustrious chess career. Most of opening theoretical work was in the Alekhine Defence. As White he was a 1.d4 player, but he dabbled in 1.e4 and 1.c4. Mikenas served as a chief arbiter of the World Championship in 1985 match between Anatoly Karpov and Gary Kasparov.

I found 15 games were Vladas Mikenas played the Queens Knight Defence 1…Nc6. Most were after 1.d4, but five were after 1.e4 and one after 1.c4. Mikenas lost almost all of them. Some of these opponents were grandmasters at the top of their game like Reshevsky and Fine. Against Keres he both lost one and drew one. This game vs Stahlberg was one of his wins with 1…Nc6.

Stahlberg - Mikenas, Muenchen ol (7), 1936 begins 1.d4 Nc6 2.c4 e5 3.e3 exd4 4.exd4 d5 5.Nf3 Bg4 6.Be2 dxc4 7.0-0 Bd6 8.Bxc4 Qf6 9.Qe1+ Kf8 10.Ng5 Nxd4
11.Nc3 [11.Qe4 Be2 12.Bxe2 Re8 13.Nxh7+ Rxh7 14.Qxh7 Nxe2+ 15.Kh1 Nxc1 16.Nc3 Bf4=] 11...h6 12.Nce4 hxg5 13.f4 Qh6  [13...Qe7-+] 14.h3 Nf3+ 15.Rxf3 Bxf3 16.fxg5 Qh5 17.Nxd6 cxd6 18.Bf4 Re8 [18...Ne7!-+] 19.Bxd6+ Ne7 20.Qf1 [20.Qe3 Qh4 21.Bb5 Bc6=/+] 20...Qh4 21.Rd1 Bh5 22.Kh2 Qxg5 23.Re1 Qf6 [23...Qd2!-+] 24.Qxf6 gxf6 25.Bb5 Rc8 26.Rxe7 Kg7 27.Rxb7 Rhd8 28.Bf4 Rc2 29.Ba4 Rc4 0-1

Sets: Chess Games 1.e4 Series and Chess Games 1.d4 Series
Copyright 2011-2017 Author Page / sawyerte@yahoo.com
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Friday, December 29, 2017

Kings Indian Defence Roys 6...c5

This King's Indian Defence features the 5.Nf3 0-0 6.Be2 c5 variation. White gets a slight advantage but Black has reasonable chances in complications. The fact is that the KID is a full opening that keeps most of the pieces on the board for a long time. Players have flexibility in tactics and strategy. Harvey Roys and I played four correspondence games, each scoring one win as Black. My win came 40 years ago. His came later.

[My Main Line 1...c5 Playbook is available in Kindle and paperback. This covers the Sicilian Defence Najdorf and the King's Indian Defence both for Black.]

Sawyer (1969) - Roys (2259), corr APCT EMN-A-1, 23.02.1996 begins 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 0-0 6.Be2 c5 7.0-0 Nbd7 8.d5 Nb6!? 9.h3 [I was very fortunate in 9.Nd2 Bg4? 10.Bxg4 1-0 Sawyer - Johnson,Russ corr APCT 1981] 9...Bd7 10.a4 a5 11.Nd2 [11.Bf4+/-] 11...e6 12.Qc2 exd5 13.exd5 [More dynamic is 13.cxd5+/=] 13...Bf5 14.Bd3 Bxd3 15.Qxd3 Re8 16.b3 [16.Nf3+/=] 16...Nh5 17.Nf3 Qf6 18.Bd2 Nf4 19.Bxf4 Qxf4 [19...Qxc3 20.Qxc3 Bxc3 21.Rac1+/-] 20.Rae1 Nd7 21.Nb5 Ne5 22.Nxe5 Rxe5 23.g3 Qf6 24.f4!? [24.Rxe5 Qxe5 25.Qd2 Qe7 26.Re1+/=] 24...Re7 25.Qd2 Rd8 [25...Rae8!=] 26.Qxa5!? [Risky. White should play 26.Rxe7! Qxe7 27.Re1+/-] 26...Rde8 27.Qd2 h5 28.h4 Kh7 29.Kg2 Rxe1 30.Rxe1 Rxe1 31.Qxe1 Qb2+ 32.Kh3 [White could try 32.Qf2 Qxb3 33.Nxd6 Qxa4 34.f5+/=] 32...Qxb3 33.Nxd6 Qxa4 34.Nxf7 Qxc4
35.Ng5+ Kh6 36.Nf7+ Kh7 1/2-1/2

Sets: Chess Games 1.e4 Series and Chess Games 1.d4 Series
Copyright 2011-2017 Author Page / sawyerte@yahoo.com
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Wednesday, December 27, 2017

Blackmar-Diemer Huebsch 5.f3

Emery Peterson attempted a Blackmar-Diemer Gambit. He ended up with a Huebsch Gambit when Black captures on e4 with the knight instead of the pawn. After 1.d4 Nf6 2.Nc3 d5 3.e4 Nxe4 (3...dxe4 4.f3 is a BDG) 4.Nxe4 dxe4 there are five common ways to play the Huebsch Gambit. Popular is 5.Bc4. Good is 5.Be3 or 5.c3. Interesting is 5.Bf4. The only move I have not played myself is the weaker 5.f3?! The International Master Piotr Dobrowolski demonstrates that Black gets a good game after 5...e5!

[These declined lines are covered in Blackmar-Diemer Theory 4.]

Peterson (2168) - Dobrowolski (2421), European Blitz 2017 Katowice POL, 15.12.2017 begins 1.d4 Nf6 2.Nc3 d5 3.e4 Nxe4 4.Nxe4 dxe4
5.f3?! [5.Be3= or 5.c3=] 5...e5! 6.dxe5 [6.Be3 exd4=/+] 6...Qxd1+ 7.Kxd1 Nc6 [7...Bf5-/+] 8.Bf4 [8.fxe4 Nxe5=/+] 8...Bf5 9.c3 0-0-0+ 10.Kc1 Bc5 11.Bb5? [11.fxe4 Bxe4 12.b4 Nxb4 13.cxb4 Bd4-/+] 11...e3 [11...Nxe5 12.Bxe5 exf3 13.Nxf3 Be3+ 14.Nd2 Rxd2-+] 12.Ne2 Rd2 13.Rd1? Rc2+ 0-1

Sets: Chess Games 1.e4 Series and Chess Games 1.d4 Series
Copyright 2011-2017 Author Page / sawyerte@yahoo.com
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Sunday, December 24, 2017

Blackmar-Diemer GM Tomczak

Emery Peterson of Germany played a Blackmar-Diemer Gambit against Jacek Tomczak of Poland in the European Blitz played at Katowice. Peterson got an excellent game, but Tomczak with his 2588 rating is hard to beat. This game is a BDG Bogoljubow variation 5.Nxf3 g6. It has some characteristics of the Gruenfeld Defence for Black, but White has sacrificed a pawn for a kingside attack. White had two good ideas in 17.Bxe6 or 17.d5 Bf5 18.g4. Once those options were not chosen, the grandmaster got the upper hand.

[My Blackmar-Diemer Theory 3 shows the best ways to play the gambit accepted.]

Peterson (2168) - Tomczak (2588), European Blitz 2017 Katowice POL, 15.12.2017 begins 1.d4 Nf6 2.Nc3 d5 3.e4 dxe4 4.f3 exf3 5.Nxf3 g6 6.Bc4 Bg7 7.Bg5 0-0 8.Qd2 Nbd7 9.h4 Nb6 10.Bb3 a5 11.a4 Nh5 12.0-0-0 Bf5 13.Rde1 Re8 14.Rhg1 Bg4 15.Nh2 Qd7 16.Rgf1 Be6 17.d5 [17.Bxe6 fxe6 18.g4 Nf6 19.h5 Nxa4 20.hxg6 Nxc3 21.Qxc3=] 17...Bf5 [17...Bxc3 18.dxe6 Bxd2+ 19.Bxd2 Qxd2+ 20.Kxd2 f6-/+]
18.Rxf5 [18.g4! Bxg4 19.Nxg4 Qxg4 20.Qf2 Kh8 21.Qxf7 Ng3 22.Qf3 Qxf3 23.Rxf3+/=] 18...gxf5 19.Bh6 Qd6 20.Bxg7 Kxg7 21.g4 fxg4 22.Re4 [22.Nxg4 Qf4-/+] 22...f5 23.Nb5 Qh6 24.Re3 [24.Qxh6+ Kxh6 25.Re6+ Nf6 26.Nxc7 Nbd7 27.Nxa8 Rxa8 28.Rxe7 Re8 29.Rxe8 Nxe8-/+] 24...Rac8 [24...Qf4-+] 25.Nd4 Kh8 26.Ne6 [26.Nxf5 Qf6-+] 26...Nf6 27.Nf1 c6 [27...Ne4-+] 28.Qxa5 [28.dxc6 Rxc6-+] 28...Nbxd5 29.Bxd5 [29.Qe1 Nxe3 30.Nxe3 Ne4-+] 29...Nxd5 30.Ng5 Qg7 [30...Qxh4-+] 31.Re6 Ra8 32.Qd2 Rxa4 33.Kb1 Rea8 34.c3 h6 [34...Ra1+ 35.Kc2 Rxf1-+] 35.Rxh6+ Kg8 36.Re6 Nxc3+ 37.bxc3 Ra1+ 38.Kc2 R1a2+ 39.Kd3 Rd8+ 40.Ke3 Raxd2 41.Nxd2 Qxc3+ 0-1

Sets: Chess Games 1.e4 Series and Chess Games 1.d4 Series
Copyright 2011-2017 Author Page / sawyerte@yahoo.com
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Wednesday, December 20, 2017

Blackmar-Diemer Zilbermints2

Lev Zilbermints wins another Blackmar-Diemer Gambit against a master. He takes on FM Asa Hoffmann. Zilbermints sent me these comments: "I beat Hoffmann in a second game with the BDG. My score against him is +2, -1. I played him once in 2015 was winning, but then blundered. I have a +10, -2, =5 score with the Gunderam Attack in the Vienna Defense this year on ICC because I know it and because Black often does not play the best line as my wins against Hoffmann show as well as IM Christian Toth."

Zilbermints - Hoffmann, Internet Chess Club 2017 begins 1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 Bf5 5.g4 Bg6 6.h4 exf3 7.Qxf3 c6 8.h5 Bxc2 9.Rh2 Qxd4 10.Be3 Qxg4 11.Rxc2 Qxh5 12.Qxh5 [12.Qg3!?=] 12...Nxh5 13.0-0-0 Nd7 14.Nb5 cxb5 [14...Rc8!?] 15.Bxb5 Nhf6 16.Rc7 e6 [Or 16...a6 17.Bxd7+ +/=] 17.Bxd7+ Nxd7 18.Rdxd7
18...Rc8 19.Rxf7 Rxc7+ 20.Rxc7 Kd8 [20...Be7 21.Rxb7+-] 21.Rxb7 Bd6 22.Bg5+ Kc8 23.Rxa7 h6 24.Ra8+ Bb8 25.Bf4 Kb7 26.Rxb8+ Rxb8 27.Bxb8 Kxb8 28.Kd2 g5 [28...Kb7 29.a4+-] 29.Ke3 h5 30.Nf3 g4 31.Ne5 Kc7 32.a4 Kd6 33.Ke4 g3 34.Nf3 g2 35.Ng1 e5 [35...Kc5 36.Kf3+-] 36.b4 h4 37.Kf3 Kd5 38.a5 Kd4 39.a6 1-0

Sets: Chess Games 1.e4 Series and Chess Games 1.d4 Series
Copyright 2011-2017 Author Page / sawyerte@yahoo.com
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